/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 12:12:54,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 12:12:54,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 12:12:54,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 12:12:54,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 12:12:54,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 12:12:54,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 12:12:54,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 12:12:54,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 12:12:54,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 12:12:54,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 12:12:54,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 12:12:54,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 12:12:54,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 12:12:54,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 12:12:54,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 12:12:54,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 12:12:54,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 12:12:54,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 12:12:54,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 12:12:54,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 12:12:54,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 12:12:54,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 12:12:54,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 12:12:54,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 12:12:54,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 12:12:54,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 12:12:54,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 12:12:54,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 12:12:54,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 12:12:54,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 12:12:54,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 12:12:54,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 12:12:54,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 12:12:54,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 12:12:54,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 12:12:54,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 12:12:54,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 12:12:54,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 12:12:54,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 12:12:54,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 12:12:54,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 12:12:54,376 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 12:12:54,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 12:12:54,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 12:12:54,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 12:12:54,380 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 12:12:54,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 12:12:54,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 12:12:54,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 12:12:54,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 12:12:54,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 12:12:54,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 12:12:54,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 12:12:54,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 12:12:54,383 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 12:12:54,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 12:12:54,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 12:12:54,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 12:12:54,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 12:12:54,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 12:12:54,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 12:12:54,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 12:12:54,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 12:12:54,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 12:12:54,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 12:12:54,386 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 12:12:54,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 12:12:54,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 12:12:54,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 12:12:54,737 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 12:12:54,738 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 12:12:54,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2021-03-25 12:12:54,740 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2021-03-25 12:12:54,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 12:12:54,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 12:12:54,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 12:12:54,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 12:12:54,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 12:12:54,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 12:12:54,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 12:12:54,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 12:12:54,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 12:12:54,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... [2021-03-25 12:12:54,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 12:12:54,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 12:12:54,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 12:12:54,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 12:12:54,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 12:12:54,896 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 12:12:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 12:12:54,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 12:12:54,896 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 12:12:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 12:12:54,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 12:12:54,896 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 12:12:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 12:12:54,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 12:12:54,897 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-25 12:12:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-25 12:12:54,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-25 12:12:54,897 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-25 12:12:54,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-25 12:12:54,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-25 12:12:54,898 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 12:12:55,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 12:12:55,099 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 12:12:55,100 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 12:12:55 BoogieIcfgContainer [2021-03-25 12:12:55,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 12:12:55,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 12:12:55,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 12:12:55,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 12:12:55,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 12:12:54" (1/2) ... [2021-03-25 12:12:55,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd934ff and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 12:12:55, skipping insertion in model container [2021-03-25 12:12:55,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 12:12:55" (2/2) ... [2021-03-25 12:12:55,106 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2021-03-25 12:12:55,110 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 12:12:55,114 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 12:12:55,114 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 12:12:55,166 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-25 12:12:55,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 12:12:55,198 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 12:12:55,198 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 12:12:55,198 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 12:12:55,198 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 12:12:55,198 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 12:12:55,199 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 12:12:55,199 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 12:12:55,199 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 12:12:55,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 45 transitions, 122 flow [2021-03-25 12:12:55,237 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-25 12:12:55,237 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 12:12:55,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 41 events. 0/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 12:12:55,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 45 transitions, 122 flow [2021-03-25 12:12:55,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 39 transitions, 102 flow [2021-03-25 12:12:55,244 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:55,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 39 transitions, 102 flow [2021-03-25 12:12:55,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 39 transitions, 102 flow [2021-03-25 12:12:55,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 39 transitions, 102 flow [2021-03-25 12:12:55,275 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-25 12:12:55,275 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 12:12:55,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 39 events. 0/39 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 12:12:55,279 INFO L142 LiptonReduction]: Number of co-enabled transitions 756 [2021-03-25 12:12:55,382 INFO L154 LiptonReduction]: Checked pairs total: 1800 [2021-03-25 12:12:55,382 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 12:12:55,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 12:12:55,413 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-03-25 12:12:55,413 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 12:12:55,414 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:55,414 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:55,415 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:55,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:55,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1219919751, now seen corresponding path program 1 times [2021-03-25 12:12:55,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:55,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379099366] [2021-03-25 12:12:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:55,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:55,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 12:12:55,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:55,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:12:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:55,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379099366] [2021-03-25 12:12:55,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:55,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 12:12:55,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409519734] [2021-03-25 12:12:55,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 12:12:55,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:55,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 12:12:55,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 12:12:55,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 50 [2021-03-25 12:12:55,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:55,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 50 [2021-03-25 12:12:55,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:55,640 INFO L129 PetriNetUnfolder]: 1/39 cut-off events. [2021-03-25 12:12:55,640 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 12:12:55,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 39 events. 1/39 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 42. Up to 6 conditions per place. [2021-03-25 12:12:55,642 INFO L132 encePairwiseOnDemand]: 47/50 looper letters, 2 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2021-03-25 12:12:55,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 34 transitions, 100 flow [2021-03-25 12:12:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 12:12:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 12:12:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2021-03-25 12:12:55,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2021-03-25 12:12:55,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2021-03-25 12:12:55,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2021-03-25 12:12:55,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:55,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2021-03-25 12:12:55,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,663 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 92 flow. Second operand 3 states and 140 transitions. [2021-03-25 12:12:55,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 34 transitions, 100 flow [2021-03-25 12:12:55,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 84 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-25 12:12:55,669 INFO L241 Difference]: Finished difference. Result has 42 places, 34 transitions, 84 flow [2021-03-25 12:12:55,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2021-03-25 12:12:55,671 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2021-03-25 12:12:55,671 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:55,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 34 transitions, 84 flow [2021-03-25 12:12:55,672 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 34 transitions, 84 flow [2021-03-25 12:12:55,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 34 transitions, 84 flow [2021-03-25 12:12:55,680 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-25 12:12:55,680 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 12:12:55,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 12:12:55,681 INFO L142 LiptonReduction]: Number of co-enabled transitions 558 [2021-03-25 12:12:55,810 INFO L154 LiptonReduction]: Checked pairs total: 1733 [2021-03-25 12:12:55,810 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 12:12:55,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 12:12:55,813 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 76 flow [2021-03-25 12:12:55,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:55,814 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:55,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 12:12:55,814 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:55,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:55,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1444364967, now seen corresponding path program 2 times [2021-03-25 12:12:55,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:55,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59502222] [2021-03-25 12:12:55,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:55,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:55,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 12:12:55,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:55,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:12:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:55,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59502222] [2021-03-25 12:12:55,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:55,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 12:12:55,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175224677] [2021-03-25 12:12:55,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 12:12:55,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:55,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 12:12:55,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 12:12:55,868 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 54 [2021-03-25 12:12:55,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:55,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 54 [2021-03-25 12:12:55,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:55,880 INFO L129 PetriNetUnfolder]: 1/35 cut-off events. [2021-03-25 12:12:55,880 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 12:12:55,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 37. Up to 6 conditions per place. [2021-03-25 12:12:55,881 INFO L132 encePairwiseOnDemand]: 51/54 looper letters, 2 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2021-03-25 12:12:55,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 84 flow [2021-03-25 12:12:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 12:12:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 12:12:55,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2021-03-25 12:12:55,885 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9382716049382716 [2021-03-25 12:12:55,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 152 transitions. [2021-03-25 12:12:55,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 152 transitions. [2021-03-25 12:12:55,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:55,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 152 transitions. [2021-03-25 12:12:55,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,888 INFO L185 Difference]: Start difference. First operand has 38 places, 30 transitions, 76 flow. Second operand 3 states and 152 transitions. [2021-03-25 12:12:55,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 84 flow [2021-03-25 12:12:55,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 80 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 12:12:55,890 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 80 flow [2021-03-25 12:12:55,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-03-25 12:12:55,890 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2021-03-25 12:12:55,890 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:55,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 80 flow [2021-03-25 12:12:55,891 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 80 flow [2021-03-25 12:12:55,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 80 flow [2021-03-25 12:12:55,897 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-25 12:12:55,897 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 12:12:55,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 12:12:55,898 INFO L142 LiptonReduction]: Number of co-enabled transitions 384 [2021-03-25 12:12:55,994 INFO L154 LiptonReduction]: Checked pairs total: 1012 [2021-03-25 12:12:55,994 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 12:12:55,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 12:12:55,995 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 72 flow [2021-03-25 12:12:55,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:55,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:55,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:55,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 12:12:55,997 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:55,997 INFO L82 PathProgramCache]: Analyzing trace with hash 161280370, now seen corresponding path program 1 times [2021-03-25 12:12:55,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:55,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722002940] [2021-03-25 12:12:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:56,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 12:12:56,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:12:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:56,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722002940] [2021-03-25 12:12:56,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:56,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 12:12:56,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666262778] [2021-03-25 12:12:56,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 12:12:56,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:56,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 12:12:56,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 12:12:56,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 58 [2021-03-25 12:12:56,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:56,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:56,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 58 [2021-03-25 12:12:56,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:56,064 INFO L129 PetriNetUnfolder]: 1/29 cut-off events. [2021-03-25 12:12:56,064 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 12:12:56,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 29 events. 1/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 1 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 36. Up to 6 conditions per place. [2021-03-25 12:12:56,066 INFO L132 encePairwiseOnDemand]: 55/58 looper letters, 2 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2021-03-25 12:12:56,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 80 flow [2021-03-25 12:12:56,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 12:12:56,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 12:12:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2021-03-25 12:12:56,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2021-03-25 12:12:56,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 161 transitions. [2021-03-25 12:12:56,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 161 transitions. [2021-03-25 12:12:56,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:56,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 161 transitions. [2021-03-25 12:12:56,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:56,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:56,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:56,076 INFO L185 Difference]: Start difference. First operand has 35 places, 26 transitions, 72 flow. Second operand 3 states and 161 transitions. [2021-03-25 12:12:56,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 80 flow [2021-03-25 12:12:56,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 76 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 12:12:56,078 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 76 flow [2021-03-25 12:12:56,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-03-25 12:12:56,078 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -11 predicate places. [2021-03-25 12:12:56,078 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:56,078 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 76 flow [2021-03-25 12:12:56,082 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 76 flow [2021-03-25 12:12:56,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 76 flow [2021-03-25 12:12:56,092 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-25 12:12:56,092 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 12:12:56,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 12:12:56,093 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 12:12:56,197 INFO L154 LiptonReduction]: Checked pairs total: 438 [2021-03-25 12:12:56,197 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 12:12:56,198 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120 [2021-03-25 12:12:56,200 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 68 flow [2021-03-25 12:12:56,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:56,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:56,200 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:56,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 12:12:56,200 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:56,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:56,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1287393555, now seen corresponding path program 1 times [2021-03-25 12:12:56,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:56,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517611356] [2021-03-25 12:12:56,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:56,363 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:56,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:56,385 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:56,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:56,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:56,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:56,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:56,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:56,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:12:56,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:56,565 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:12:56,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:12:56,596 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:56,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:56,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:56,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517611356] [2021-03-25 12:12:56,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:56,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-25 12:12:56,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081776808] [2021-03-25 12:12:56,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 12:12:56,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:56,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 12:12:56,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-03-25 12:12:56,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 62 [2021-03-25 12:12:56,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 68 flow. Second operand has 12 states, 12 states have (on average 27.166666666666668) internal successors, (326), 12 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:56,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:56,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 62 [2021-03-25 12:12:56,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:57,224 INFO L129 PetriNetUnfolder]: 229/445 cut-off events. [2021-03-25 12:12:57,225 INFO L130 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2021-03-25 12:12:57,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 445 events. 229/445 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2111 event pairs, 123 based on Foata normal form. 2/442 useless extension candidates. Maximal degree in co-relation 1052. Up to 303 conditions per place. [2021-03-25 12:12:57,230 INFO L132 encePairwiseOnDemand]: 50/62 looper letters, 20 selfloop transitions, 49 changer transitions 4/83 dead transitions. [2021-03-25 12:12:57,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 83 transitions, 402 flow [2021-03-25 12:12:57,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:12:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:12:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 465 transitions. [2021-03-25 12:12:57,232 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 12:12:57,232 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 465 transitions. [2021-03-25 12:12:57,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 465 transitions. [2021-03-25 12:12:57,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:57,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 465 transitions. [2021-03-25 12:12:57,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 31.0) internal successors, (465), 15 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 62.0) internal successors, (992), 16 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,236 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 62.0) internal successors, (992), 16 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,236 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 68 flow. Second operand 15 states and 465 transitions. [2021-03-25 12:12:57,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 83 transitions, 402 flow [2021-03-25 12:12:57,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 83 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 12:12:57,239 INFO L241 Difference]: Finished difference. Result has 47 places, 70 transitions, 346 flow [2021-03-25 12:12:57,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=346, PETRI_PLACES=47, PETRI_TRANSITIONS=70} [2021-03-25 12:12:57,240 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2021-03-25 12:12:57,240 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:57,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 70 transitions, 346 flow [2021-03-25 12:12:57,240 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 70 transitions, 346 flow [2021-03-25 12:12:57,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 70 transitions, 346 flow [2021-03-25 12:12:57,259 INFO L129 PetriNetUnfolder]: 148/316 cut-off events. [2021-03-25 12:12:57,260 INFO L130 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2021-03-25 12:12:57,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 316 events. 148/316 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1524 event pairs, 27 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 763. Up to 212 conditions per place. [2021-03-25 12:12:57,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-25 12:12:57,325 INFO L154 LiptonReduction]: Checked pairs total: 515 [2021-03-25 12:12:57,325 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:12:57,325 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 85 [2021-03-25 12:12:57,326 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 70 transitions, 348 flow [2021-03-25 12:12:57,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 27.166666666666668) internal successors, (326), 12 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:57,327 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:57,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 12:12:57,327 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1657125766, now seen corresponding path program 1 times [2021-03-25 12:12:57,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:57,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257070576] [2021-03-25 12:12:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:57,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 12:12:57,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 12:12:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:57,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257070576] [2021-03-25 12:12:57,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:57,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 12:12:57,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178585025] [2021-03-25 12:12:57,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 12:12:57,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:57,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 12:12:57,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 12:12:57,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 64 [2021-03-25 12:12:57,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 70 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:57,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 64 [2021-03-25 12:12:57,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:57,381 INFO L129 PetriNetUnfolder]: 125/258 cut-off events. [2021-03-25 12:12:57,381 INFO L130 PetriNetUnfolder]: For 128/141 co-relation queries the response was YES. [2021-03-25 12:12:57,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 258 events. 125/258 cut-off events. For 128/141 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1120 event pairs, 36 based on Foata normal form. 18/256 useless extension candidates. Maximal degree in co-relation 698. Up to 163 conditions per place. [2021-03-25 12:12:57,384 INFO L132 encePairwiseOnDemand]: 61/64 looper letters, 8 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2021-03-25 12:12:57,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 360 flow [2021-03-25 12:12:57,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 12:12:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 12:12:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2021-03-25 12:12:57,385 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2021-03-25 12:12:57,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2021-03-25 12:12:57,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2021-03-25 12:12:57,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:57,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2021-03-25 12:12:57,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,387 INFO L185 Difference]: Start difference. First operand has 46 places, 70 transitions, 348 flow. Second operand 3 states and 176 transitions. [2021-03-25 12:12:57,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 360 flow [2021-03-25 12:12:57,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 343 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-25 12:12:57,394 INFO L241 Difference]: Finished difference. Result has 48 places, 68 transitions, 331 flow [2021-03-25 12:12:57,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=48, PETRI_TRANSITIONS=68} [2021-03-25 12:12:57,395 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 1 predicate places. [2021-03-25 12:12:57,395 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:57,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 68 transitions, 331 flow [2021-03-25 12:12:57,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 68 transitions, 331 flow [2021-03-25 12:12:57,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 68 transitions, 331 flow [2021-03-25 12:12:57,415 INFO L129 PetriNetUnfolder]: 116/249 cut-off events. [2021-03-25 12:12:57,415 INFO L130 PetriNetUnfolder]: For 41/42 co-relation queries the response was YES. [2021-03-25 12:12:57,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 249 events. 116/249 cut-off events. For 41/42 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1100 event pairs, 24 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 620. Up to 168 conditions per place. [2021-03-25 12:12:57,417 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 12:12:57,548 INFO L154 LiptonReduction]: Checked pairs total: 147 [2021-03-25 12:12:57,549 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 12:12:57,549 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 154 [2021-03-25 12:12:57,551 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 66 transitions, 340 flow [2021-03-25 12:12:57,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,552 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:57,552 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:57,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 12:12:57,552 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:57,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:57,552 INFO L82 PathProgramCache]: Analyzing trace with hash -2071677767, now seen corresponding path program 1 times [2021-03-25 12:12:57,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:57,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213092976] [2021-03-25 12:12:57,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:57,620 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:57,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:57,629 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:57,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:57,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:57,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:57,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:57,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:57,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:57,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:57,692 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:12:57,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:57,714 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:57,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213092976] [2021-03-25 12:12:57,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:57,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:12:57,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180644349] [2021-03-25 12:12:57,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:12:57,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:57,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:12:57,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:12:57,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 71 [2021-03-25 12:12:57,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 66 transitions, 340 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:57,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 71 [2021-03-25 12:12:57,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:57,933 INFO L129 PetriNetUnfolder]: 155/288 cut-off events. [2021-03-25 12:12:57,933 INFO L130 PetriNetUnfolder]: For 213/234 co-relation queries the response was YES. [2021-03-25 12:12:57,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 288 events. 155/288 cut-off events. For 213/234 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1132 event pairs, 61 based on Foata normal form. 8/293 useless extension candidates. Maximal degree in co-relation 1046. Up to 209 conditions per place. [2021-03-25 12:12:57,936 INFO L132 encePairwiseOnDemand]: 58/71 looper letters, 20 selfloop transitions, 41 changer transitions 7/76 dead transitions. [2021-03-25 12:12:57,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 76 transitions, 533 flow [2021-03-25 12:12:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:12:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:12:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 288 transitions. [2021-03-25 12:12:57,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4507042253521127 [2021-03-25 12:12:57,938 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 288 transitions. [2021-03-25 12:12:57,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 288 transitions. [2021-03-25 12:12:57,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:57,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 288 transitions. [2021-03-25 12:12:57,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,940 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:57,940 INFO L185 Difference]: Start difference. First operand has 46 places, 66 transitions, 340 flow. Second operand 9 states and 288 transitions. [2021-03-25 12:12:57,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 76 transitions, 533 flow [2021-03-25 12:12:57,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 519 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 12:12:57,944 INFO L241 Difference]: Finished difference. Result has 57 places, 64 transitions, 462 flow [2021-03-25 12:12:57,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=462, PETRI_PLACES=57, PETRI_TRANSITIONS=64} [2021-03-25 12:12:57,944 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2021-03-25 12:12:57,944 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:57,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 64 transitions, 462 flow [2021-03-25 12:12:57,945 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 64 transitions, 462 flow [2021-03-25 12:12:57,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 64 transitions, 462 flow [2021-03-25 12:12:57,958 INFO L129 PetriNetUnfolder]: 115/238 cut-off events. [2021-03-25 12:12:57,958 INFO L130 PetriNetUnfolder]: For 213/213 co-relation queries the response was YES. [2021-03-25 12:12:57,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 238 events. 115/238 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 967 event pairs, 13 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 805. Up to 167 conditions per place. [2021-03-25 12:12:57,960 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-25 12:12:58,007 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 12:12:58,007 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:12:58,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-25 12:12:58,008 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 64 transitions, 466 flow [2021-03-25 12:12:58,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:58,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:58,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 12:12:58,008 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:58,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1556157531, now seen corresponding path program 1 times [2021-03-25 12:12:58,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:58,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209036729] [2021-03-25 12:12:58,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:58,057 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:58,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:58,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:58,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:58,072 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:12:58,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:12:58,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:58,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:12:58,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:58,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:58,120 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:12:58,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:58,129 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:12:58,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:12:58,146 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:58,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:58,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:58,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209036729] [2021-03-25 12:12:58,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:58,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:12:58,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865519822] [2021-03-25 12:12:58,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:12:58,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:58,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:12:58,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:12:58,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 72 [2021-03-25 12:12:58,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 64 transitions, 466 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:58,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 72 [2021-03-25 12:12:58,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:58,421 INFO L129 PetriNetUnfolder]: 181/348 cut-off events. [2021-03-25 12:12:58,422 INFO L130 PetriNetUnfolder]: For 639/665 co-relation queries the response was YES. [2021-03-25 12:12:58,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 348 events. 181/348 cut-off events. For 639/665 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1474 event pairs, 18 based on Foata normal form. 18/366 useless extension candidates. Maximal degree in co-relation 1479. Up to 255 conditions per place. [2021-03-25 12:12:58,425 INFO L132 encePairwiseOnDemand]: 60/72 looper letters, 57 selfloop transitions, 42 changer transitions 1/108 dead transitions. [2021-03-25 12:12:58,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 108 transitions, 958 flow [2021-03-25 12:12:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:12:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:12:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 298 transitions. [2021-03-25 12:12:58,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45987654320987653 [2021-03-25 12:12:58,427 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 298 transitions. [2021-03-25 12:12:58,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 298 transitions. [2021-03-25 12:12:58,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:58,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 298 transitions. [2021-03-25 12:12:58,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.111111111111114) internal successors, (298), 9 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,429 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,429 INFO L185 Difference]: Start difference. First operand has 54 places, 64 transitions, 466 flow. Second operand 9 states and 298 transitions. [2021-03-25 12:12:58,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 108 transitions, 958 flow [2021-03-25 12:12:58,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 108 transitions, 752 flow, removed 29 selfloop flow, removed 11 redundant places. [2021-03-25 12:12:58,435 INFO L241 Difference]: Finished difference. Result has 55 places, 99 transitions, 658 flow [2021-03-25 12:12:58,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=658, PETRI_PLACES=55, PETRI_TRANSITIONS=99} [2021-03-25 12:12:58,436 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2021-03-25 12:12:58,436 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:58,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 99 transitions, 658 flow [2021-03-25 12:12:58,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 99 transitions, 658 flow [2021-03-25 12:12:58,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 99 transitions, 658 flow [2021-03-25 12:12:58,453 INFO L129 PetriNetUnfolder]: 156/319 cut-off events. [2021-03-25 12:12:58,453 INFO L130 PetriNetUnfolder]: For 243/286 co-relation queries the response was YES. [2021-03-25 12:12:58,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1115 conditions, 319 events. 156/319 cut-off events. For 243/286 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1431 event pairs, 7 based on Foata normal form. 1/309 useless extension candidates. Maximal degree in co-relation 1086. Up to 229 conditions per place. [2021-03-25 12:12:58,456 INFO L142 LiptonReduction]: Number of co-enabled transitions 194 [2021-03-25 12:12:58,502 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:12:58,502 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:12:58,502 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 12:12:58,503 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 99 transitions, 663 flow [2021-03-25 12:12:58,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:58,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:58,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 12:12:58,504 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:58,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:58,504 INFO L82 PathProgramCache]: Analyzing trace with hash 476261125, now seen corresponding path program 1 times [2021-03-25 12:12:58,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:58,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053924327] [2021-03-25 12:12:58,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:58,535 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:58,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:58,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:58,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:58,549 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:12:58,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:12:58,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:58,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:58,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:58,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:58,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:58,593 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:12:58,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:58,610 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:58,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:58,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:58,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053924327] [2021-03-25 12:12:58,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:58,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:12:58,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611918945] [2021-03-25 12:12:58,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:12:58,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:58,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:12:58,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:12:58,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 73 [2021-03-25 12:12:58,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 99 transitions, 663 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:58,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 73 [2021-03-25 12:12:58,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:58,876 INFO L129 PetriNetUnfolder]: 194/373 cut-off events. [2021-03-25 12:12:58,877 INFO L130 PetriNetUnfolder]: For 485/503 co-relation queries the response was YES. [2021-03-25 12:12:58,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 373 events. 194/373 cut-off events. For 485/503 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1624 event pairs, 25 based on Foata normal form. 8/379 useless extension candidates. Maximal degree in co-relation 1607. Up to 282 conditions per place. [2021-03-25 12:12:58,880 INFO L132 encePairwiseOnDemand]: 59/73 looper letters, 62 selfloop transitions, 51 changer transitions 5/126 dead transitions. [2021-03-25 12:12:58,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 126 transitions, 1079 flow [2021-03-25 12:12:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:12:58,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:12:58,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2021-03-25 12:12:58,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4554794520547945 [2021-03-25 12:12:58,882 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 266 transitions. [2021-03-25 12:12:58,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 266 transitions. [2021-03-25 12:12:58,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:58,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 266 transitions. [2021-03-25 12:12:58,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.25) internal successors, (266), 8 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,884 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 73.0) internal successors, (657), 9 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,885 INFO L185 Difference]: Start difference. First operand has 55 places, 99 transitions, 663 flow. Second operand 8 states and 266 transitions. [2021-03-25 12:12:58,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 126 transitions, 1079 flow [2021-03-25 12:12:58,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 126 transitions, 1011 flow, removed 34 selfloop flow, removed 0 redundant places. [2021-03-25 12:12:58,891 INFO L241 Difference]: Finished difference. Result has 67 places, 117 transitions, 903 flow [2021-03-25 12:12:58,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=903, PETRI_PLACES=67, PETRI_TRANSITIONS=117} [2021-03-25 12:12:58,891 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2021-03-25 12:12:58,891 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:58,892 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 117 transitions, 903 flow [2021-03-25 12:12:58,892 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 117 transitions, 903 flow [2021-03-25 12:12:58,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 117 transitions, 903 flow [2021-03-25 12:12:58,916 INFO L129 PetriNetUnfolder]: 157/328 cut-off events. [2021-03-25 12:12:58,916 INFO L130 PetriNetUnfolder]: For 578/586 co-relation queries the response was YES. [2021-03-25 12:12:58,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 328 events. 157/328 cut-off events. For 578/586 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1517 event pairs, 10 based on Foata normal form. 3/322 useless extension candidates. Maximal degree in co-relation 1303. Up to 183 conditions per place. [2021-03-25 12:12:58,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 194 [2021-03-25 12:12:58,968 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:12:58,968 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:12:58,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 12:12:58,968 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 117 transitions, 910 flow [2021-03-25 12:12:58,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:58,969 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:58,969 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:58,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 12:12:58,969 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:58,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1237666824, now seen corresponding path program 1 times [2021-03-25 12:12:58,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:58,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907942871] [2021-03-25 12:12:58,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:59,015 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:59,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:59,021 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:59,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:59,030 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:12:59,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:12:59,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:12:59,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,062 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:12:59,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:12:59,065 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:12:59,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:59,080 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:59,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:59,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907942871] [2021-03-25 12:12:59,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:59,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:12:59,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281207414] [2021-03-25 12:12:59,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:12:59,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:59,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:12:59,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:12:59,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 74 [2021-03-25 12:12:59,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 117 transitions, 910 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:59,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 74 [2021-03-25 12:12:59,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:59,290 INFO L129 PetriNetUnfolder]: 231/450 cut-off events. [2021-03-25 12:12:59,290 INFO L130 PetriNetUnfolder]: For 1141/1159 co-relation queries the response was YES. [2021-03-25 12:12:59,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2265 conditions, 450 events. 231/450 cut-off events. For 1141/1159 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2104 event pairs, 22 based on Foata normal form. 14/464 useless extension candidates. Maximal degree in co-relation 2191. Up to 321 conditions per place. [2021-03-25 12:12:59,294 INFO L132 encePairwiseOnDemand]: 59/74 looper letters, 84 selfloop transitions, 66 changer transitions 2/160 dead transitions. [2021-03-25 12:12:59,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 160 transitions, 1553 flow [2021-03-25 12:12:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:12:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:12:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 244 transitions. [2021-03-25 12:12:59,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47104247104247104 [2021-03-25 12:12:59,296 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 244 transitions. [2021-03-25 12:12:59,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 244 transitions. [2021-03-25 12:12:59,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:59,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 244 transitions. [2021-03-25 12:12:59,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,298 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,298 INFO L185 Difference]: Start difference. First operand has 67 places, 117 transitions, 910 flow. Second operand 7 states and 244 transitions. [2021-03-25 12:12:59,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 160 transitions, 1553 flow [2021-03-25 12:12:59,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 160 transitions, 1519 flow, removed 17 selfloop flow, removed 0 redundant places. [2021-03-25 12:12:59,310 INFO L241 Difference]: Finished difference. Result has 76 places, 148 transitions, 1385 flow [2021-03-25 12:12:59,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1385, PETRI_PLACES=76, PETRI_TRANSITIONS=148} [2021-03-25 12:12:59,311 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 29 predicate places. [2021-03-25 12:12:59,311 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:59,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 148 transitions, 1385 flow [2021-03-25 12:12:59,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 148 transitions, 1385 flow [2021-03-25 12:12:59,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 148 transitions, 1385 flow [2021-03-25 12:12:59,336 INFO L129 PetriNetUnfolder]: 179/370 cut-off events. [2021-03-25 12:12:59,337 INFO L130 PetriNetUnfolder]: For 907/931 co-relation queries the response was YES. [2021-03-25 12:12:59,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 370 events. 179/370 cut-off events. For 907/931 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1836 event pairs, 12 based on Foata normal form. 2/357 useless extension candidates. Maximal degree in co-relation 1741. Up to 204 conditions per place. [2021-03-25 12:12:59,341 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-25 12:12:59,348 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:12:59,348 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:12:59,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-25 12:12:59,349 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 148 transitions, 1385 flow [2021-03-25 12:12:59,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:59,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:59,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 12:12:59,350 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:59,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:59,350 INFO L82 PathProgramCache]: Analyzing trace with hash 911129712, now seen corresponding path program 2 times [2021-03-25 12:12:59,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:59,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300084320] [2021-03-25 12:12:59,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:59,383 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:59,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:59,389 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:59,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:59,398 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:12:59,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:12:59,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:59,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:12:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:12:59,444 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:12:59,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:59,460 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:59,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:59,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300084320] [2021-03-25 12:12:59,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:59,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:12:59,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422088978] [2021-03-25 12:12:59,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:12:59,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:59,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:12:59,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:12:59,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 74 [2021-03-25 12:12:59,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 148 transitions, 1385 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:59,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 74 [2021-03-25 12:12:59,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:12:59,725 INFO L129 PetriNetUnfolder]: 234/459 cut-off events. [2021-03-25 12:12:59,726 INFO L130 PetriNetUnfolder]: For 1643/1661 co-relation queries the response was YES. [2021-03-25 12:12:59,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2616 conditions, 459 events. 234/459 cut-off events. For 1643/1661 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2184 event pairs, 11 based on Foata normal form. 14/473 useless extension candidates. Maximal degree in co-relation 2559. Up to 290 conditions per place. [2021-03-25 12:12:59,731 INFO L132 encePairwiseOnDemand]: 59/74 looper letters, 70 selfloop transitions, 84 changer transitions 3/165 dead transitions. [2021-03-25 12:12:59,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 165 transitions, 1842 flow [2021-03-25 12:12:59,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:12:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:12:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 277 transitions. [2021-03-25 12:12:59,733 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46790540540540543 [2021-03-25 12:12:59,733 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 277 transitions. [2021-03-25 12:12:59,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 277 transitions. [2021-03-25 12:12:59,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:12:59,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 277 transitions. [2021-03-25 12:12:59,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,735 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,735 INFO L185 Difference]: Start difference. First operand has 76 places, 148 transitions, 1385 flow. Second operand 8 states and 277 transitions. [2021-03-25 12:12:59,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 165 transitions, 1842 flow [2021-03-25 12:12:59,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 165 transitions, 1793 flow, removed 21 selfloop flow, removed 1 redundant places. [2021-03-25 12:12:59,747 INFO L241 Difference]: Finished difference. Result has 85 places, 151 transitions, 1620 flow [2021-03-25 12:12:59,748 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1620, PETRI_PLACES=85, PETRI_TRANSITIONS=151} [2021-03-25 12:12:59,748 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 38 predicate places. [2021-03-25 12:12:59,748 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:12:59,748 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 151 transitions, 1620 flow [2021-03-25 12:12:59,748 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 151 transitions, 1620 flow [2021-03-25 12:12:59,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 151 transitions, 1620 flow [2021-03-25 12:12:59,793 INFO L129 PetriNetUnfolder]: 178/376 cut-off events. [2021-03-25 12:12:59,794 INFO L130 PetriNetUnfolder]: For 1299/1302 co-relation queries the response was YES. [2021-03-25 12:12:59,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2072 conditions, 376 events. 178/376 cut-off events. For 1299/1302 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1864 event pairs, 12 based on Foata normal form. 2/370 useless extension candidates. Maximal degree in co-relation 2042. Up to 194 conditions per place. [2021-03-25 12:12:59,798 INFO L142 LiptonReduction]: Number of co-enabled transitions 266 [2021-03-25 12:12:59,804 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:12:59,805 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:12:59,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 12:12:59,806 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 151 transitions, 1620 flow [2021-03-25 12:12:59,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:12:59,806 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:12:59,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 12:12:59,806 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:12:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:12:59,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1296584307, now seen corresponding path program 2 times [2021-03-25 12:12:59,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:12:59,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619830329] [2021-03-25 12:12:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:12:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:12:59,845 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:12:59,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:12:59,850 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:12:59,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:12:59,857 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:12:59,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:12:59,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:59,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:59,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:59,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:12:59,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:12:59,902 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:12:59,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:12:59,910 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:12:59,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:12:59,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:12:59,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619830329] [2021-03-25 12:12:59,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:12:59,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:12:59,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981782512] [2021-03-25 12:12:59,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:12:59,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:12:59,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:12:59,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:12:59,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 74 [2021-03-25 12:12:59,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 151 transitions, 1620 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:12:59,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:12:59,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 74 [2021-03-25 12:12:59,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:00,110 INFO L129 PetriNetUnfolder]: 241/472 cut-off events. [2021-03-25 12:13:00,111 INFO L130 PetriNetUnfolder]: For 2161/2194 co-relation queries the response was YES. [2021-03-25 12:13:00,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2980 conditions, 472 events. 241/472 cut-off events. For 2161/2194 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2284 event pairs, 45 based on Foata normal form. 14/484 useless extension candidates. Maximal degree in co-relation 2948. Up to 400 conditions per place. [2021-03-25 12:13:00,116 INFO L132 encePairwiseOnDemand]: 60/74 looper letters, 132 selfloop transitions, 28 changer transitions 4/172 dead transitions. [2021-03-25 12:13:00,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 172 transitions, 2183 flow [2021-03-25 12:13:00,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2021-03-25 12:13:00,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4081081081081081 [2021-03-25 12:13:00,119 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 302 transitions. [2021-03-25 12:13:00,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 302 transitions. [2021-03-25 12:13:00,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:00,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 302 transitions. [2021-03-25 12:13:00,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.2) internal successors, (302), 10 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,121 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,121 INFO L185 Difference]: Start difference. First operand has 84 places, 151 transitions, 1620 flow. Second operand 10 states and 302 transitions. [2021-03-25 12:13:00,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 172 transitions, 2183 flow [2021-03-25 12:13:00,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 172 transitions, 2019 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:00,136 INFO L241 Difference]: Finished difference. Result has 93 places, 166 transitions, 1765 flow [2021-03-25 12:13:00,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1471, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1765, PETRI_PLACES=93, PETRI_TRANSITIONS=166} [2021-03-25 12:13:00,136 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 46 predicate places. [2021-03-25 12:13:00,136 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:00,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 166 transitions, 1765 flow [2021-03-25 12:13:00,137 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 166 transitions, 1765 flow [2021-03-25 12:13:00,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 166 transitions, 1765 flow [2021-03-25 12:13:00,172 INFO L129 PetriNetUnfolder]: 215/436 cut-off events. [2021-03-25 12:13:00,172 INFO L130 PetriNetUnfolder]: For 1679/1717 co-relation queries the response was YES. [2021-03-25 12:13:00,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 436 events. 215/436 cut-off events. For 1679/1717 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2172 event pairs, 17 based on Foata normal form. 13/441 useless extension candidates. Maximal degree in co-relation 2359. Up to 215 conditions per place. [2021-03-25 12:13:00,178 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 12:13:00,186 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:00,187 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:00,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 12:13:00,187 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 166 transitions, 1765 flow [2021-03-25 12:13:00,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,188 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:00,188 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:00,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 12:13:00,188 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2138913813, now seen corresponding path program 3 times [2021-03-25 12:13:00,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:00,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533086399] [2021-03-25 12:13:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:00,218 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:00,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:00,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:00,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:00,232 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:00,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:00,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:00,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:00,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:00,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:00,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:00,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:00,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:00,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:00,273 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:00,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:00,288 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:00,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:00,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533086399] [2021-03-25 12:13:00,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:00,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:00,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280098081] [2021-03-25 12:13:00,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:00,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:00,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:00,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:00,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 74 [2021-03-25 12:13:00,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 166 transitions, 1765 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:00,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 74 [2021-03-25 12:13:00,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:00,588 INFO L129 PetriNetUnfolder]: 250/485 cut-off events. [2021-03-25 12:13:00,589 INFO L130 PetriNetUnfolder]: For 2647/2673 co-relation queries the response was YES. [2021-03-25 12:13:00,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3168 conditions, 485 events. 250/485 cut-off events. For 2647/2673 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2308 event pairs, 41 based on Foata normal form. 16/499 useless extension candidates. Maximal degree in co-relation 3090. Up to 356 conditions per place. [2021-03-25 12:13:00,595 INFO L132 encePairwiseOnDemand]: 59/74 looper letters, 87 selfloop transitions, 88 changer transitions 9/192 dead transitions. [2021-03-25 12:13:00,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 192 transitions, 2482 flow [2021-03-25 12:13:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:00,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 354 transitions. [2021-03-25 12:13:00,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4348894348894349 [2021-03-25 12:13:00,597 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 354 transitions. [2021-03-25 12:13:00,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 354 transitions. [2021-03-25 12:13:00,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:00,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 354 transitions. [2021-03-25 12:13:00,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,599 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,600 INFO L185 Difference]: Start difference. First operand has 91 places, 166 transitions, 1765 flow. Second operand 11 states and 354 transitions. [2021-03-25 12:13:00,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 192 transitions, 2482 flow [2021-03-25 12:13:00,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 192 transitions, 2452 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-03-25 12:13:00,617 INFO L241 Difference]: Finished difference. Result has 105 places, 180 transitions, 2223 flow [2021-03-25 12:13:00,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1735, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2223, PETRI_PLACES=105, PETRI_TRANSITIONS=180} [2021-03-25 12:13:00,618 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 58 predicate places. [2021-03-25 12:13:00,618 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:00,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 180 transitions, 2223 flow [2021-03-25 12:13:00,619 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 180 transitions, 2223 flow [2021-03-25 12:13:00,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 180 transitions, 2223 flow [2021-03-25 12:13:00,656 INFO L129 PetriNetUnfolder]: 217/440 cut-off events. [2021-03-25 12:13:00,656 INFO L130 PetriNetUnfolder]: For 2962/2973 co-relation queries the response was YES. [2021-03-25 12:13:00,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2863 conditions, 440 events. 217/440 cut-off events. For 2962/2973 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2195 event pairs, 21 based on Foata normal form. 7/438 useless extension candidates. Maximal degree in co-relation 2777. Up to 215 conditions per place. [2021-03-25 12:13:00,664 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:00,673 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:00,673 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:00,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 12:13:00,675 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 180 transitions, 2223 flow [2021-03-25 12:13:00,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,675 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:00,676 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:00,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 12:13:00,676 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:00,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:00,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1863734843, now seen corresponding path program 4 times [2021-03-25 12:13:00,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:00,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745915958] [2021-03-25 12:13:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:00,703 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:00,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:00,709 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:00,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:00,718 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:00,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:00,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:00,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:00,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:00,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:00,738 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:00,743 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:00,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:00,757 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:00,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:00,789 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:00,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:00,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745915958] [2021-03-25 12:13:00,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:00,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:00,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579017484] [2021-03-25 12:13:00,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:00,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:00,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:00,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:00,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 74 [2021-03-25 12:13:00,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 180 transitions, 2223 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:00,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:00,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 74 [2021-03-25 12:13:00,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:01,037 INFO L129 PetriNetUnfolder]: 257/501 cut-off events. [2021-03-25 12:13:01,037 INFO L130 PetriNetUnfolder]: For 4084/4125 co-relation queries the response was YES. [2021-03-25 12:13:01,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3735 conditions, 501 events. 257/501 cut-off events. For 4084/4125 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2430 event pairs, 37 based on Foata normal form. 22/521 useless extension candidates. Maximal degree in co-relation 3630. Up to 375 conditions per place. [2021-03-25 12:13:01,043 INFO L132 encePairwiseOnDemand]: 59/74 looper letters, 100 selfloop transitions, 89 changer transitions 9/206 dead transitions. [2021-03-25 12:13:01,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 206 transitions, 3050 flow [2021-03-25 12:13:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 12:13:01,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44763513513513514 [2021-03-25 12:13:01,045 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 12:13:01,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 12:13:01,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:01,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 12:13:01,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,049 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,049 INFO L185 Difference]: Start difference. First operand has 104 places, 180 transitions, 2223 flow. Second operand 8 states and 265 transitions. [2021-03-25 12:13:01,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 206 transitions, 3050 flow [2021-03-25 12:13:01,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 206 transitions, 2892 flow, removed 36 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:01,073 INFO L241 Difference]: Finished difference. Result has 108 places, 195 transitions, 2592 flow [2021-03-25 12:13:01,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2087, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2592, PETRI_PLACES=108, PETRI_TRANSITIONS=195} [2021-03-25 12:13:01,074 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 61 predicate places. [2021-03-25 12:13:01,074 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:01,074 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 195 transitions, 2592 flow [2021-03-25 12:13:01,074 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 195 transitions, 2592 flow [2021-03-25 12:13:01,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 195 transitions, 2592 flow [2021-03-25 12:13:01,115 INFO L129 PetriNetUnfolder]: 221/460 cut-off events. [2021-03-25 12:13:01,115 INFO L130 PetriNetUnfolder]: For 4183/4210 co-relation queries the response was YES. [2021-03-25 12:13:01,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3218 conditions, 460 events. 221/460 cut-off events. For 4183/4210 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2365 event pairs, 10 based on Foata normal form. 9/463 useless extension candidates. Maximal degree in co-relation 3106. Up to 222 conditions per place. [2021-03-25 12:13:01,122 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 12:13:01,168 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:01,168 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:01,168 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 12:13:01,169 INFO L480 AbstractCegarLoop]: Abstraction has has 108 places, 195 transitions, 2605 flow [2021-03-25 12:13:01,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,169 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:01,169 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:01,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 12:13:01,169 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:01,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:01,170 INFO L82 PathProgramCache]: Analyzing trace with hash 370372651, now seen corresponding path program 5 times [2021-03-25 12:13:01,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:01,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687754048] [2021-03-25 12:13:01,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:01,192 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:01,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:01,197 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:01,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:01,205 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:01,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:01,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:01,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:01,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:01,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:01,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:01,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:01,237 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:01,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:01,250 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:01,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:01,265 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:01,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:01,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687754048] [2021-03-25 12:13:01,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:01,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:01,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67647335] [2021-03-25 12:13:01,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:01,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:01,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:01,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:01,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 75 [2021-03-25 12:13:01,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 195 transitions, 2605 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:01,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 75 [2021-03-25 12:13:01,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:01,597 INFO L129 PetriNetUnfolder]: 274/537 cut-off events. [2021-03-25 12:13:01,597 INFO L130 PetriNetUnfolder]: For 5178/5213 co-relation queries the response was YES. [2021-03-25 12:13:01,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4294 conditions, 537 events. 274/537 cut-off events. For 5178/5213 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2684 event pairs, 35 based on Foata normal form. 16/551 useless extension candidates. Maximal degree in co-relation 4181. Up to 390 conditions per place. [2021-03-25 12:13:01,604 INFO L132 encePairwiseOnDemand]: 59/75 looper letters, 98 selfloop transitions, 121 changer transitions 10/237 dead transitions. [2021-03-25 12:13:01,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 237 transitions, 3783 flow [2021-03-25 12:13:01,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 324 transitions. [2021-03-25 12:13:01,606 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.432 [2021-03-25 12:13:01,607 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 324 transitions. [2021-03-25 12:13:01,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 324 transitions. [2021-03-25 12:13:01,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:01,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 324 transitions. [2021-03-25 12:13:01,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.4) internal successors, (324), 10 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,610 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,610 INFO L185 Difference]: Start difference. First operand has 108 places, 195 transitions, 2605 flow. Second operand 10 states and 324 transitions. [2021-03-25 12:13:01,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 237 transitions, 3783 flow [2021-03-25 12:13:01,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 237 transitions, 3600 flow, removed 40 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:01,638 INFO L241 Difference]: Finished difference. Result has 115 places, 225 transitions, 3266 flow [2021-03-25 12:13:01,638 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=2445, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3266, PETRI_PLACES=115, PETRI_TRANSITIONS=225} [2021-03-25 12:13:01,638 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 68 predicate places. [2021-03-25 12:13:01,638 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:01,638 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 225 transitions, 3266 flow [2021-03-25 12:13:01,638 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 225 transitions, 3266 flow [2021-03-25 12:13:01,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 225 transitions, 3266 flow [2021-03-25 12:13:01,678 INFO L129 PetriNetUnfolder]: 227/465 cut-off events. [2021-03-25 12:13:01,679 INFO L130 PetriNetUnfolder]: For 4736/4770 co-relation queries the response was YES. [2021-03-25 12:13:01,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3555 conditions, 465 events. 227/465 cut-off events. For 4736/4770 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2401 event pairs, 5 based on Foata normal form. 14/475 useless extension candidates. Maximal degree in co-relation 3449. Up to 232 conditions per place. [2021-03-25 12:13:01,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 12:13:01,748 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:01,748 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:01,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-03-25 12:13:01,749 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 225 transitions, 3270 flow [2021-03-25 12:13:01,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:01,749 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:01,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 12:13:01,749 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:01,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:01,750 INFO L82 PathProgramCache]: Analyzing trace with hash 372998427, now seen corresponding path program 6 times [2021-03-25 12:13:01,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:01,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376693793] [2021-03-25 12:13:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:01,781 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:01,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:01,787 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:01,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:01,797 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:01,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:01,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:01,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:01,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:01,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:01,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:01,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:01,840 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:01,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:01,855 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:01,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:01,873 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:01,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:01,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376693793] [2021-03-25 12:13:01,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:01,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:01,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521285752] [2021-03-25 12:13:01,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:01,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:01,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:01,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:01,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2021-03-25 12:13:01,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 225 transitions, 3270 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:01,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:01,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2021-03-25 12:13:01,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:02,291 INFO L129 PetriNetUnfolder]: 276/542 cut-off events. [2021-03-25 12:13:02,291 INFO L130 PetriNetUnfolder]: For 5828/5863 co-relation queries the response was YES. [2021-03-25 12:13:02,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4567 conditions, 542 events. 276/542 cut-off events. For 5828/5863 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2728 event pairs, 36 based on Foata normal form. 16/556 useless extension candidates. Maximal degree in co-relation 4453. Up to 386 conditions per place. [2021-03-25 12:13:02,298 INFO L132 encePairwiseOnDemand]: 59/76 looper letters, 84 selfloop transitions, 145 changer transitions 8/245 dead transitions. [2021-03-25 12:13:02,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 245 transitions, 4149 flow [2021-03-25 12:13:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:13:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:13:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 439 transitions. [2021-03-25 12:13:02,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.412593984962406 [2021-03-25 12:13:02,301 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 439 transitions. [2021-03-25 12:13:02,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 439 transitions. [2021-03-25 12:13:02,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:02,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 439 transitions. [2021-03-25 12:13:02,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 31.357142857142858) internal successors, (439), 14 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,304 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 76.0) internal successors, (1140), 15 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,304 INFO L185 Difference]: Start difference. First operand has 115 places, 225 transitions, 3270 flow. Second operand 14 states and 439 transitions. [2021-03-25 12:13:02,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 245 transitions, 4149 flow [2021-03-25 12:13:02,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 245 transitions, 4020 flow, removed 52 selfloop flow, removed 2 redundant places. [2021-03-25 12:13:02,338 INFO L241 Difference]: Finished difference. Result has 129 places, 235 transitions, 3737 flow [2021-03-25 12:13:02,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=3161, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3737, PETRI_PLACES=129, PETRI_TRANSITIONS=235} [2021-03-25 12:13:02,338 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 82 predicate places. [2021-03-25 12:13:02,338 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:02,338 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 235 transitions, 3737 flow [2021-03-25 12:13:02,338 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 235 transitions, 3737 flow [2021-03-25 12:13:02,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 235 transitions, 3737 flow [2021-03-25 12:13:02,383 INFO L129 PetriNetUnfolder]: 234/484 cut-off events. [2021-03-25 12:13:02,384 INFO L130 PetriNetUnfolder]: For 5258/5298 co-relation queries the response was YES. [2021-03-25 12:13:02,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3933 conditions, 484 events. 234/484 cut-off events. For 5258/5298 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2540 event pairs, 9 based on Foata normal form. 13/490 useless extension candidates. Maximal degree in co-relation 3817. Up to 241 conditions per place. [2021-03-25 12:13:02,390 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 12:13:02,450 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:02,450 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:02,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 12:13:02,454 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 235 transitions, 3741 flow [2021-03-25 12:13:02,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,455 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:02,455 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:02,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 12:13:02,455 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:02,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:02,455 INFO L82 PathProgramCache]: Analyzing trace with hash -194739000, now seen corresponding path program 1 times [2021-03-25 12:13:02,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:02,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789734448] [2021-03-25 12:13:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:02,485 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:02,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:02,491 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:02,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:02,498 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:02,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:02,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:02,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:02,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:02,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:02,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:02,542 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:02,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:02,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789734448] [2021-03-25 12:13:02,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:02,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:02,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270787594] [2021-03-25 12:13:02,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:02,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:02,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:02,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:02,548 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2021-03-25 12:13:02,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 235 transitions, 3741 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:02,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2021-03-25 12:13:02,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:02,792 INFO L129 PetriNetUnfolder]: 295/573 cut-off events. [2021-03-25 12:13:02,792 INFO L130 PetriNetUnfolder]: For 7290/7316 co-relation queries the response was YES. [2021-03-25 12:13:02,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5138 conditions, 573 events. 295/573 cut-off events. For 7290/7316 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2927 event pairs, 8 based on Foata normal form. 19/591 useless extension candidates. Maximal degree in co-relation 5021. Up to 438 conditions per place. [2021-03-25 12:13:02,800 INFO L132 encePairwiseOnDemand]: 62/77 looper letters, 164 selfloop transitions, 88 changer transitions 7/267 dead transitions. [2021-03-25 12:13:02,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 267 transitions, 4791 flow [2021-03-25 12:13:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:02,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2021-03-25 12:13:02,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45083487940630795 [2021-03-25 12:13:02,802 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 243 transitions. [2021-03-25 12:13:02,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 243 transitions. [2021-03-25 12:13:02,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:02,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 243 transitions. [2021-03-25 12:13:02,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.714285714285715) internal successors, (243), 7 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 77.0) internal successors, (616), 8 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,805 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 77.0) internal successors, (616), 8 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,805 INFO L185 Difference]: Start difference. First operand has 129 places, 235 transitions, 3741 flow. Second operand 7 states and 243 transitions. [2021-03-25 12:13:02,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 267 transitions, 4791 flow [2021-03-25 12:13:02,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 267 transitions, 4598 flow, removed 64 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:02,843 INFO L241 Difference]: Finished difference. Result has 129 places, 251 transitions, 4094 flow [2021-03-25 12:13:02,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=3588, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4094, PETRI_PLACES=129, PETRI_TRANSITIONS=251} [2021-03-25 12:13:02,844 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 82 predicate places. [2021-03-25 12:13:02,844 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:02,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 251 transitions, 4094 flow [2021-03-25 12:13:02,844 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 251 transitions, 4094 flow [2021-03-25 12:13:02,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 251 transitions, 4094 flow [2021-03-25 12:13:02,892 INFO L129 PetriNetUnfolder]: 256/514 cut-off events. [2021-03-25 12:13:02,892 INFO L130 PetriNetUnfolder]: For 6217/6294 co-relation queries the response was YES. [2021-03-25 12:13:02,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4297 conditions, 514 events. 256/514 cut-off events. For 6217/6294 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2693 event pairs, 9 based on Foata normal form. 15/523 useless extension candidates. Maximal degree in co-relation 4178. Up to 260 conditions per place. [2021-03-25 12:13:02,916 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 12:13:02,927 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:02,927 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:02,927 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 83 [2021-03-25 12:13:02,928 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 251 transitions, 4094 flow [2021-03-25 12:13:02,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:02,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:02,928 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:02,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 12:13:02,928 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:02,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:02,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1725322123, now seen corresponding path program 1 times [2021-03-25 12:13:02,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:02,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645838796] [2021-03-25 12:13:02,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:02,966 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:02,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:02,972 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:02,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:02,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:02,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:02,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:02,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:03,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:03,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:03,026 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:03,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645838796] [2021-03-25 12:13:03,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:03,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:03,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414555121] [2021-03-25 12:13:03,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:03,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:03,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:03,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:03,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2021-03-25 12:13:03,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 251 transitions, 4094 flow. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:03,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2021-03-25 12:13:03,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:03,257 INFO L129 PetriNetUnfolder]: 305/586 cut-off events. [2021-03-25 12:13:03,257 INFO L130 PetriNetUnfolder]: For 7059/7094 co-relation queries the response was YES. [2021-03-25 12:13:03,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5402 conditions, 586 events. 305/586 cut-off events. For 7059/7094 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2985 event pairs, 29 based on Foata normal form. 16/600 useless extension candidates. Maximal degree in co-relation 5283. Up to 488 conditions per place. [2021-03-25 12:13:03,265 INFO L132 encePairwiseOnDemand]: 63/77 looper letters, 204 selfloop transitions, 57 changer transitions 4/273 dead transitions. [2021-03-25 12:13:03,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 273 transitions, 5010 flow [2021-03-25 12:13:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2021-03-25 12:13:03,267 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4452690166975881 [2021-03-25 12:13:03,267 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 240 transitions. [2021-03-25 12:13:03,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 240 transitions. [2021-03-25 12:13:03,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:03,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 240 transitions. [2021-03-25 12:13:03,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 77.0) internal successors, (616), 8 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,268 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 77.0) internal successors, (616), 8 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,268 INFO L185 Difference]: Start difference. First operand has 129 places, 251 transitions, 4094 flow. Second operand 7 states and 240 transitions. [2021-03-25 12:13:03,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 273 transitions, 5010 flow [2021-03-25 12:13:03,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 273 transitions, 4889 flow, removed 55 selfloop flow, removed 1 redundant places. [2021-03-25 12:13:03,303 INFO L241 Difference]: Finished difference. Result has 137 places, 262 transitions, 4428 flow [2021-03-25 12:13:03,304 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=3977, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4428, PETRI_PLACES=137, PETRI_TRANSITIONS=262} [2021-03-25 12:13:03,304 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 90 predicate places. [2021-03-25 12:13:03,304 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:03,304 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 262 transitions, 4428 flow [2021-03-25 12:13:03,305 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 262 transitions, 4428 flow [2021-03-25 12:13:03,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 262 transitions, 4428 flow [2021-03-25 12:13:03,357 INFO L129 PetriNetUnfolder]: 270/532 cut-off events. [2021-03-25 12:13:03,357 INFO L130 PetriNetUnfolder]: For 6709/6776 co-relation queries the response was YES. [2021-03-25 12:13:03,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4651 conditions, 532 events. 270/532 cut-off events. For 6709/6776 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2733 event pairs, 17 based on Foata normal form. 13/539 useless extension candidates. Maximal degree in co-relation 4534. Up to 269 conditions per place. [2021-03-25 12:13:03,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 12:13:03,378 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:03,379 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:03,379 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 12:13:03,379 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 262 transitions, 4428 flow [2021-03-25 12:13:03,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 7 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:03,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:03,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 12:13:03,380 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:03,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:03,380 INFO L82 PathProgramCache]: Analyzing trace with hash 386675285, now seen corresponding path program 7 times [2021-03-25 12:13:03,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:03,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070549462] [2021-03-25 12:13:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:03,406 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:03,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:03,411 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:03,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:03,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:03,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:03,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:03,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:03,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:03,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:03,471 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:03,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:03,486 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:03,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:03,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070549462] [2021-03-25 12:13:03,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:03,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:03,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607997287] [2021-03-25 12:13:03,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:03,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:03,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:03,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:03,490 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2021-03-25 12:13:03,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 262 transitions, 4428 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:03,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2021-03-25 12:13:03,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:03,770 INFO L129 PetriNetUnfolder]: 304/584 cut-off events. [2021-03-25 12:13:03,770 INFO L130 PetriNetUnfolder]: For 7352/7387 co-relation queries the response was YES. [2021-03-25 12:13:03,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5480 conditions, 584 events. 304/584 cut-off events. For 7352/7387 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2971 event pairs, 38 based on Foata normal form. 16/598 useless extension candidates. Maximal degree in co-relation 5358. Up to 512 conditions per place. [2021-03-25 12:13:03,779 INFO L132 encePairwiseOnDemand]: 64/77 looper letters, 226 selfloop transitions, 28 changer transitions 6/268 dead transitions. [2021-03-25 12:13:03,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 268 transitions, 5029 flow [2021-03-25 12:13:03,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 327 transitions. [2021-03-25 12:13:03,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3860684769775679 [2021-03-25 12:13:03,781 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 327 transitions. [2021-03-25 12:13:03,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 327 transitions. [2021-03-25 12:13:03,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:03,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 327 transitions. [2021-03-25 12:13:03,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.727272727272727) internal successors, (327), 11 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,783 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 77.0) internal successors, (924), 12 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,783 INFO L185 Difference]: Start difference. First operand has 137 places, 262 transitions, 4428 flow. Second operand 11 states and 327 transitions. [2021-03-25 12:13:03,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 268 transitions, 5029 flow [2021-03-25 12:13:03,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 268 transitions, 4977 flow, removed 23 selfloop flow, removed 2 redundant places. [2021-03-25 12:13:03,822 INFO L241 Difference]: Finished difference. Result has 149 places, 260 transitions, 4410 flow [2021-03-25 12:13:03,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=4376, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4410, PETRI_PLACES=149, PETRI_TRANSITIONS=260} [2021-03-25 12:13:03,822 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 102 predicate places. [2021-03-25 12:13:03,823 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:03,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 260 transitions, 4410 flow [2021-03-25 12:13:03,823 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 260 transitions, 4410 flow [2021-03-25 12:13:03,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 260 transitions, 4410 flow [2021-03-25 12:13:03,876 INFO L129 PetriNetUnfolder]: 268/530 cut-off events. [2021-03-25 12:13:03,876 INFO L130 PetriNetUnfolder]: For 7150/7217 co-relation queries the response was YES. [2021-03-25 12:13:03,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4686 conditions, 530 events. 268/530 cut-off events. For 7150/7217 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2734 event pairs, 14 based on Foata normal form. 13/537 useless extension candidates. Maximal degree in co-relation 4629. Up to 262 conditions per place. [2021-03-25 12:13:03,884 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 12:13:03,896 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:03,896 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:03,896 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 12:13:03,897 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 260 transitions, 4410 flow [2021-03-25 12:13:03,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:03,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:03,898 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:03,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 12:13:03,898 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:03,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:03,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1195146653, now seen corresponding path program 8 times [2021-03-25 12:13:03,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:03,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327523901] [2021-03-25 12:13:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:03,924 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:03,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:03,929 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:03,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:03,937 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:03,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:03,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:03,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:03,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:03,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:03,974 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:03,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:03,988 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:03,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:04,002 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:04,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:04,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327523901] [2021-03-25 12:13:04,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:04,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:04,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342647200] [2021-03-25 12:13:04,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:04,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:04,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:04,007 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2021-03-25 12:13:04,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 260 transitions, 4410 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:04,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2021-03-25 12:13:04,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:04,272 INFO L129 PetriNetUnfolder]: 303/589 cut-off events. [2021-03-25 12:13:04,273 INFO L130 PetriNetUnfolder]: For 7839/7874 co-relation queries the response was YES. [2021-03-25 12:13:04,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5555 conditions, 589 events. 303/589 cut-off events. For 7839/7874 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3038 event pairs, 36 based on Foata normal form. 20/608 useless extension candidates. Maximal degree in co-relation 5496. Up to 494 conditions per place. [2021-03-25 12:13:04,281 INFO L132 encePairwiseOnDemand]: 63/77 looper letters, 227 selfloop transitions, 39 changer transitions 3/277 dead transitions. [2021-03-25 12:13:04,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 277 transitions, 5185 flow [2021-03-25 12:13:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 283 transitions. [2021-03-25 12:13:04,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4083694083694084 [2021-03-25 12:13:04,282 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 283 transitions. [2021-03-25 12:13:04,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 283 transitions. [2021-03-25 12:13:04,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:04,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 283 transitions. [2021-03-25 12:13:04,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.444444444444443) internal successors, (283), 9 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,284 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,284 INFO L185 Difference]: Start difference. First operand has 145 places, 260 transitions, 4410 flow. Second operand 9 states and 283 transitions. [2021-03-25 12:13:04,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 277 transitions, 5185 flow [2021-03-25 12:13:04,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 277 transitions, 5099 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:04,324 INFO L241 Difference]: Finished difference. Result has 146 places, 269 transitions, 4588 flow [2021-03-25 12:13:04,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=4344, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4588, PETRI_PLACES=146, PETRI_TRANSITIONS=269} [2021-03-25 12:13:04,325 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 99 predicate places. [2021-03-25 12:13:04,325 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:04,325 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 269 transitions, 4588 flow [2021-03-25 12:13:04,327 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 269 transitions, 4588 flow [2021-03-25 12:13:04,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 269 transitions, 4588 flow [2021-03-25 12:13:04,381 INFO L129 PetriNetUnfolder]: 268/539 cut-off events. [2021-03-25 12:13:04,381 INFO L130 PetriNetUnfolder]: For 7210/7290 co-relation queries the response was YES. [2021-03-25 12:13:04,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4785 conditions, 539 events. 268/539 cut-off events. For 7210/7290 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2838 event pairs, 23 based on Foata normal form. 9/540 useless extension candidates. Maximal degree in co-relation 4729. Up to 264 conditions per place. [2021-03-25 12:13:04,389 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-25 12:13:04,401 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:04,401 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:04,402 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 12:13:04,402 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 269 transitions, 4588 flow [2021-03-25 12:13:04,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,402 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:04,402 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:04,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 12:13:04,402 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:04,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1185632317, now seen corresponding path program 9 times [2021-03-25 12:13:04,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:04,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313088429] [2021-03-25 12:13:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:04,417 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:04,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:04,422 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:04,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:04,429 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:04,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:04,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:04,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:04,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:04,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:04,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:04,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:04,475 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:04,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:04,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313088429] [2021-03-25 12:13:04,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:04,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:04,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817483553] [2021-03-25 12:13:04,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:04,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:04,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:04,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:04,479 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2021-03-25 12:13:04,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 269 transitions, 4588 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:04,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2021-03-25 12:13:04,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:04,705 INFO L129 PetriNetUnfolder]: 303/594 cut-off events. [2021-03-25 12:13:04,705 INFO L130 PetriNetUnfolder]: For 8045/8065 co-relation queries the response was YES. [2021-03-25 12:13:04,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 594 events. 303/594 cut-off events. For 8045/8065 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3073 event pairs, 38 based on Foata normal form. 10/602 useless extension candidates. Maximal degree in co-relation 5580. Up to 514 conditions per place. [2021-03-25 12:13:04,713 INFO L132 encePairwiseOnDemand]: 63/77 looper letters, 237 selfloop transitions, 29 changer transitions 3/277 dead transitions. [2021-03-25 12:13:04,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 277 transitions, 5236 flow [2021-03-25 12:13:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 250 transitions. [2021-03-25 12:13:04,714 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40584415584415584 [2021-03-25 12:13:04,714 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 250 transitions. [2021-03-25 12:13:04,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 250 transitions. [2021-03-25 12:13:04,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:04,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 250 transitions. [2021-03-25 12:13:04,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.25) internal successors, (250), 8 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,716 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 77.0) internal successors, (693), 9 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,716 INFO L185 Difference]: Start difference. First operand has 144 places, 269 transitions, 4588 flow. Second operand 8 states and 250 transitions. [2021-03-25 12:13:04,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 277 transitions, 5236 flow [2021-03-25 12:13:04,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 277 transitions, 5094 flow, removed 54 selfloop flow, removed 4 redundant places. [2021-03-25 12:13:04,758 INFO L241 Difference]: Finished difference. Result has 150 places, 271 transitions, 4593 flow [2021-03-25 12:13:04,758 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=4472, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4593, PETRI_PLACES=150, PETRI_TRANSITIONS=271} [2021-03-25 12:13:04,758 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 103 predicate places. [2021-03-25 12:13:04,758 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:04,758 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 271 transitions, 4593 flow [2021-03-25 12:13:04,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 271 transitions, 4593 flow [2021-03-25 12:13:04,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 271 transitions, 4593 flow [2021-03-25 12:13:04,809 INFO L129 PetriNetUnfolder]: 263/531 cut-off events. [2021-03-25 12:13:04,809 INFO L130 PetriNetUnfolder]: For 7538/7608 co-relation queries the response was YES. [2021-03-25 12:13:04,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4749 conditions, 531 events. 263/531 cut-off events. For 7538/7608 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2784 event pairs, 24 based on Foata normal form. 11/537 useless extension candidates. Maximal degree in co-relation 4618. Up to 247 conditions per place. [2021-03-25 12:13:04,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-25 12:13:04,829 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:04,829 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:04,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 12:13:04,829 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 271 transitions, 4593 flow [2021-03-25 12:13:04,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:04,830 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:04,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 12:13:04,830 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash -688992961, now seen corresponding path program 10 times [2021-03-25 12:13:04,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:04,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628216867] [2021-03-25 12:13:04,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:04,845 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:04,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:04,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:04,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:04,859 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:04,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:04,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:04,887 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:04,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:04,900 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:04,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:04,914 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:04,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628216867] [2021-03-25 12:13:04,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:04,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:04,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889830601] [2021-03-25 12:13:04,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:04,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:04,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:04,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:04,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 77 [2021-03-25 12:13:04,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 271 transitions, 4593 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:04,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:04,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 77 [2021-03-25 12:13:04,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:05,169 INFO L129 PetriNetUnfolder]: 302/591 cut-off events. [2021-03-25 12:13:05,169 INFO L130 PetriNetUnfolder]: For 8457/8477 co-relation queries the response was YES. [2021-03-25 12:13:05,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5651 conditions, 591 events. 302/591 cut-off events. For 8457/8477 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3057 event pairs, 38 based on Foata normal form. 10/599 useless extension candidates. Maximal degree in co-relation 5516. Up to 516 conditions per place. [2021-03-25 12:13:05,183 INFO L132 encePairwiseOnDemand]: 64/77 looper letters, 238 selfloop transitions, 21 changer transitions 7/274 dead transitions. [2021-03-25 12:13:05,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 274 transitions, 5153 flow [2021-03-25 12:13:05,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2021-03-25 12:13:05,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39105339105339104 [2021-03-25 12:13:05,185 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 271 transitions. [2021-03-25 12:13:05,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 271 transitions. [2021-03-25 12:13:05,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:05,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 271 transitions. [2021-03-25 12:13:05,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.11111111111111) internal successors, (271), 9 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,187 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 77.0) internal successors, (770), 10 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,187 INFO L185 Difference]: Start difference. First operand has 149 places, 271 transitions, 4593 flow. Second operand 9 states and 271 transitions. [2021-03-25 12:13:05,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 274 transitions, 5153 flow [2021-03-25 12:13:05,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 274 transitions, 5058 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:05,230 INFO L241 Difference]: Finished difference. Result has 154 places, 266 transitions, 4453 flow [2021-03-25 12:13:05,231 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=4498, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4453, PETRI_PLACES=154, PETRI_TRANSITIONS=266} [2021-03-25 12:13:05,231 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 107 predicate places. [2021-03-25 12:13:05,231 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:05,231 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 266 transitions, 4453 flow [2021-03-25 12:13:05,231 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 266 transitions, 4453 flow [2021-03-25 12:13:05,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 266 transitions, 4453 flow [2021-03-25 12:13:05,286 INFO L129 PetriNetUnfolder]: 276/551 cut-off events. [2021-03-25 12:13:05,287 INFO L130 PetriNetUnfolder]: For 7572/7639 co-relation queries the response was YES. [2021-03-25 12:13:05,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4823 conditions, 551 events. 276/551 cut-off events. For 7572/7639 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2895 event pairs, 20 based on Foata normal form. 12/557 useless extension candidates. Maximal degree in co-relation 4763. Up to 256 conditions per place. [2021-03-25 12:13:05,295 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-25 12:13:05,353 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:05,353 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:05,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 12:13:05,354 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 265 transitions, 4439 flow [2021-03-25 12:13:05,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:05,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:05,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 12:13:05,356 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:05,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:05,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1071959551, now seen corresponding path program 11 times [2021-03-25 12:13:05,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:05,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131773166] [2021-03-25 12:13:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:05,381 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:05,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:05,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:05,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:05,397 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:05,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:05,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:05,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:05,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:05,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:05,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:05,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:05,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:05,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:05,438 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:05,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:05,452 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:05,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:05,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131773166] [2021-03-25 12:13:05,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:05,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:05,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937631226] [2021-03-25 12:13:05,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:05,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:05,456 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:05,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 265 transitions, 4439 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:05,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:05,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:05,698 INFO L129 PetriNetUnfolder]: 300/584 cut-off events. [2021-03-25 12:13:05,698 INFO L130 PetriNetUnfolder]: For 8221/8241 co-relation queries the response was YES. [2021-03-25 12:13:05,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5543 conditions, 584 events. 300/584 cut-off events. For 8221/8241 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3004 event pairs, 38 based on Foata normal form. 10/592 useless extension candidates. Maximal degree in co-relation 5481. Up to 510 conditions per place. [2021-03-25 12:13:05,705 INFO L132 encePairwiseOnDemand]: 63/78 looper letters, 235 selfloop transitions, 20 changer transitions 5/268 dead transitions. [2021-03-25 12:13:05,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 268 transitions, 4980 flow [2021-03-25 12:13:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:05,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:05,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 272 transitions. [2021-03-25 12:13:05,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38746438746438744 [2021-03-25 12:13:05,706 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 272 transitions. [2021-03-25 12:13:05,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 272 transitions. [2021-03-25 12:13:05,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:05,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 272 transitions. [2021-03-25 12:13:05,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,708 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,708 INFO L185 Difference]: Start difference. First operand has 149 places, 265 transitions, 4439 flow. Second operand 9 states and 272 transitions. [2021-03-25 12:13:05,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 268 transitions, 4980 flow [2021-03-25 12:13:05,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 268 transitions, 4904 flow, removed 18 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:05,749 INFO L241 Difference]: Finished difference. Result has 152 places, 261 transitions, 4355 flow [2021-03-25 12:13:05,749 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4365, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4355, PETRI_PLACES=152, PETRI_TRANSITIONS=261} [2021-03-25 12:13:05,749 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 105 predicate places. [2021-03-25 12:13:05,749 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:05,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 261 transitions, 4355 flow [2021-03-25 12:13:05,750 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 261 transitions, 4355 flow [2021-03-25 12:13:05,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 148 places, 261 transitions, 4355 flow [2021-03-25 12:13:05,800 INFO L129 PetriNetUnfolder]: 263/526 cut-off events. [2021-03-25 12:13:05,801 INFO L130 PetriNetUnfolder]: For 7087/7148 co-relation queries the response was YES. [2021-03-25 12:13:05,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4657 conditions, 526 events. 263/526 cut-off events. For 7087/7148 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2732 event pairs, 19 based on Foata normal form. 7/527 useless extension candidates. Maximal degree in co-relation 4598. Up to 247 conditions per place. [2021-03-25 12:13:05,806 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-25 12:13:05,818 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:05,818 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:05,818 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 12:13:05,819 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 261 transitions, 4355 flow [2021-03-25 12:13:05,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,819 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:05,819 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:05,819 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 12:13:05,819 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:05,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:05,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1590544066, now seen corresponding path program 1 times [2021-03-25 12:13:05,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:05,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097096132] [2021-03-25 12:13:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:05,833 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:05,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:05,838 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:05,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:05,846 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:05,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:05,849 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-25 12:13:05,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 12:13:05,869 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-25 12:13:05,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 12:13:05,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:05,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:05,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:05,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:05,912 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:05,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:05,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097096132] [2021-03-25 12:13:05,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:05,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:05,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838840021] [2021-03-25 12:13:05,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:05,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:05,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:05,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:05,918 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:05,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 261 transitions, 4355 flow. Second operand has 8 states, 8 states have (on average 27.125) internal successors, (217), 8 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:05,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:05,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:05,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:06,125 INFO L129 PetriNetUnfolder]: 299/577 cut-off events. [2021-03-25 12:13:06,125 INFO L130 PetriNetUnfolder]: For 8193/8228 co-relation queries the response was YES. [2021-03-25 12:13:06,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5480 conditions, 577 events. 299/577 cut-off events. For 8193/8228 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2894 event pairs, 39 based on Foata normal form. 16/591 useless extension candidates. Maximal degree in co-relation 5419. Up to 511 conditions per place. [2021-03-25 12:13:06,132 INFO L132 encePairwiseOnDemand]: 65/78 looper letters, 234 selfloop transitions, 15 changer transitions 5/262 dead transitions. [2021-03-25 12:13:06,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 262 transitions, 4867 flow [2021-03-25 12:13:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 265 transitions. [2021-03-25 12:13:06,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37749287749287747 [2021-03-25 12:13:06,133 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 265 transitions. [2021-03-25 12:13:06,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 265 transitions. [2021-03-25 12:13:06,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:06,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 265 transitions. [2021-03-25 12:13:06,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,134 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,135 INFO L185 Difference]: Start difference. First operand has 148 places, 261 transitions, 4355 flow. Second operand 9 states and 265 transitions. [2021-03-25 12:13:06,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 262 transitions, 4867 flow [2021-03-25 12:13:06,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 262 transitions, 4821 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:06,176 INFO L241 Difference]: Finished difference. Result has 150 places, 256 transitions, 4247 flow [2021-03-25 12:13:06,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4309, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4247, PETRI_PLACES=150, PETRI_TRANSITIONS=256} [2021-03-25 12:13:06,177 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 103 predicate places. [2021-03-25 12:13:06,177 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:06,177 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 256 transitions, 4247 flow [2021-03-25 12:13:06,177 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 256 transitions, 4247 flow [2021-03-25 12:13:06,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 143 places, 256 transitions, 4247 flow [2021-03-25 12:13:06,230 INFO L129 PetriNetUnfolder]: 267/530 cut-off events. [2021-03-25 12:13:06,230 INFO L130 PetriNetUnfolder]: For 7166/7194 co-relation queries the response was YES. [2021-03-25 12:13:06,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4627 conditions, 530 events. 267/530 cut-off events. For 7166/7194 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2706 event pairs, 21 based on Foata normal form. 7/533 useless extension candidates. Maximal degree in co-relation 4569. Up to 249 conditions per place. [2021-03-25 12:13:06,235 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-25 12:13:06,244 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:06,244 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:06,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 12:13:06,245 INFO L480 AbstractCegarLoop]: Abstraction has has 143 places, 256 transitions, 4247 flow [2021-03-25 12:13:06,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.125) internal successors, (217), 8 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:06,245 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:06,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 12:13:06,245 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:06,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1356927231, now seen corresponding path program 1 times [2021-03-25 12:13:06,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:06,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064554240] [2021-03-25 12:13:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:06,260 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:06,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:06,264 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:06,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:06,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:06,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:06,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:06,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:06,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:06,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:06,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:06,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:06,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064554240] [2021-03-25 12:13:06,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:06,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:06,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407492619] [2021-03-25 12:13:06,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:06,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:06,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:06,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:06,336 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:06,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 256 transitions, 4247 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:06,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:06,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:06,626 INFO L129 PetriNetUnfolder]: 300/578 cut-off events. [2021-03-25 12:13:06,626 INFO L130 PetriNetUnfolder]: For 7910/7930 co-relation queries the response was YES. [2021-03-25 12:13:06,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5456 conditions, 578 events. 300/578 cut-off events. For 7910/7930 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2894 event pairs, 38 based on Foata normal form. 10/586 useless extension candidates. Maximal degree in co-relation 5396. Up to 431 conditions per place. [2021-03-25 12:13:06,632 INFO L132 encePairwiseOnDemand]: 64/78 looper letters, 124 selfloop transitions, 127 changer transitions 10/269 dead transitions. [2021-03-25 12:13:06,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 269 transitions, 4989 flow [2021-03-25 12:13:06,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:06,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 293 transitions. [2021-03-25 12:13:06,635 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41737891737891736 [2021-03-25 12:13:06,635 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 293 transitions. [2021-03-25 12:13:06,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 293 transitions. [2021-03-25 12:13:06,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:06,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 293 transitions. [2021-03-25 12:13:06,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 9 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,649 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,649 INFO L185 Difference]: Start difference. First operand has 143 places, 256 transitions, 4247 flow. Second operand 9 states and 293 transitions. [2021-03-25 12:13:06,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 269 transitions, 4989 flow [2021-03-25 12:13:06,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 269 transitions, 4917 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:06,691 INFO L241 Difference]: Finished difference. Result has 151 places, 254 transitions, 4607 flow [2021-03-25 12:13:06,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4175, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4607, PETRI_PLACES=151, PETRI_TRANSITIONS=254} [2021-03-25 12:13:06,691 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 104 predicate places. [2021-03-25 12:13:06,691 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:06,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 254 transitions, 4607 flow [2021-03-25 12:13:06,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 254 transitions, 4607 flow [2021-03-25 12:13:06,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 254 transitions, 4607 flow [2021-03-25 12:13:06,743 INFO L129 PetriNetUnfolder]: 263/515 cut-off events. [2021-03-25 12:13:06,743 INFO L130 PetriNetUnfolder]: For 8308/8377 co-relation queries the response was YES. [2021-03-25 12:13:06,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4932 conditions, 515 events. 263/515 cut-off events. For 8308/8377 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2605 event pairs, 18 based on Foata normal form. 9/516 useless extension candidates. Maximal degree in co-relation 4804. Up to 250 conditions per place. [2021-03-25 12:13:06,748 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-25 12:13:06,756 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:06,756 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:06,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 12:13:06,756 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 254 transitions, 4607 flow [2021-03-25 12:13:06,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:06,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:06,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 12:13:06,757 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:06,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:06,758 INFO L82 PathProgramCache]: Analyzing trace with hash -16034015, now seen corresponding path program 2 times [2021-03-25 12:13:06,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:06,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509448557] [2021-03-25 12:13:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:06,771 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:06,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:06,776 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:06,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:06,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:06,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:06,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:06,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:06,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:06,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:06,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:06,830 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:06,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:06,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509448557] [2021-03-25 12:13:06,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:06,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:06,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353059072] [2021-03-25 12:13:06,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:06,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:06,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:06,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:06,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:06,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 254 transitions, 4607 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:06,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:06,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:06,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:07,095 INFO L129 PetriNetUnfolder]: 301/581 cut-off events. [2021-03-25 12:13:07,096 INFO L130 PetriNetUnfolder]: For 9527/9557 co-relation queries the response was YES. [2021-03-25 12:13:07,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5931 conditions, 581 events. 301/581 cut-off events. For 9527/9557 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2904 event pairs, 25 based on Foata normal form. 13/592 useless extension candidates. Maximal degree in co-relation 5796. Up to 476 conditions per place. [2021-03-25 12:13:07,102 INFO L132 encePairwiseOnDemand]: 65/78 looper letters, 198 selfloop transitions, 63 changer transitions 3/272 dead transitions. [2021-03-25 12:13:07,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 272 transitions, 5509 flow [2021-03-25 12:13:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 12:13:07,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42788461538461536 [2021-03-25 12:13:07,103 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 12:13:07,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 12:13:07,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:07,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 12:13:07,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,105 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,105 INFO L185 Difference]: Start difference. First operand has 150 places, 254 transitions, 4607 flow. Second operand 8 states and 267 transitions. [2021-03-25 12:13:07,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 272 transitions, 5509 flow [2021-03-25 12:13:07,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 272 transitions, 5068 flow, removed 16 selfloop flow, removed 13 redundant places. [2021-03-25 12:13:07,151 INFO L241 Difference]: Finished difference. Result has 147 places, 262 transitions, 4589 flow [2021-03-25 12:13:07,151 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4184, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4589, PETRI_PLACES=147, PETRI_TRANSITIONS=262} [2021-03-25 12:13:07,151 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 100 predicate places. [2021-03-25 12:13:07,151 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:07,151 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 262 transitions, 4589 flow [2021-03-25 12:13:07,152 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 262 transitions, 4589 flow [2021-03-25 12:13:07,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 262 transitions, 4589 flow [2021-03-25 12:13:07,193 INFO L129 PetriNetUnfolder]: 269/535 cut-off events. [2021-03-25 12:13:07,193 INFO L130 PetriNetUnfolder]: For 8912/8950 co-relation queries the response was YES. [2021-03-25 12:13:07,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4972 conditions, 535 events. 269/535 cut-off events. For 8912/8950 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2761 event pairs, 17 based on Foata normal form. 9/541 useless extension candidates. Maximal degree in co-relation 4847. Up to 259 conditions per place. [2021-03-25 12:13:07,200 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:07,212 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:07,212 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:07,213 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 12:13:07,213 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 262 transitions, 4589 flow [2021-03-25 12:13:07,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:07,213 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:07,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 12:13:07,213 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:07,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1485955383, now seen corresponding path program 1 times [2021-03-25 12:13:07,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:07,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306763308] [2021-03-25 12:13:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:07,227 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:07,232 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:07,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:07,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:07,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:07,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:07,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:07,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:07,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:07,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:07,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:07,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306763308] [2021-03-25 12:13:07,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:07,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:07,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956899314] [2021-03-25 12:13:07,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:07,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:07,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:07,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:07,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:07,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 262 transitions, 4589 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:07,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:07,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:07,505 INFO L129 PetriNetUnfolder]: 304/592 cut-off events. [2021-03-25 12:13:07,506 INFO L130 PetriNetUnfolder]: For 9830/9860 co-relation queries the response was YES. [2021-03-25 12:13:07,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5878 conditions, 592 events. 304/592 cut-off events. For 9830/9860 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3021 event pairs, 30 based on Foata normal form. 13/603 useless extension candidates. Maximal degree in co-relation 5743. Up to 477 conditions per place. [2021-03-25 12:13:07,513 INFO L132 encePairwiseOnDemand]: 65/78 looper letters, 199 selfloop transitions, 65 changer transitions 6/278 dead transitions. [2021-03-25 12:13:07,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 278 transitions, 5416 flow [2021-03-25 12:13:07,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:07,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:07,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 239 transitions. [2021-03-25 12:13:07,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43772893772893773 [2021-03-25 12:13:07,515 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 239 transitions. [2021-03-25 12:13:07,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 239 transitions. [2021-03-25 12:13:07,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:07,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 239 transitions. [2021-03-25 12:13:07,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.142857142857146) internal successors, (239), 7 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,518 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 78.0) internal successors, (624), 8 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,518 INFO L185 Difference]: Start difference. First operand has 147 places, 262 transitions, 4589 flow. Second operand 7 states and 239 transitions. [2021-03-25 12:13:07,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 278 transitions, 5416 flow [2021-03-25 12:13:07,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 278 transitions, 5278 flow, removed 53 selfloop flow, removed 2 redundant places. [2021-03-25 12:13:07,568 INFO L241 Difference]: Finished difference. Result has 156 places, 264 transitions, 4695 flow [2021-03-25 12:13:07,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4457, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4695, PETRI_PLACES=156, PETRI_TRANSITIONS=264} [2021-03-25 12:13:07,568 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 109 predicate places. [2021-03-25 12:13:07,568 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:07,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 264 transitions, 4695 flow [2021-03-25 12:13:07,569 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 264 transitions, 4695 flow [2021-03-25 12:13:07,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 264 transitions, 4695 flow [2021-03-25 12:13:07,625 INFO L129 PetriNetUnfolder]: 266/523 cut-off events. [2021-03-25 12:13:07,625 INFO L130 PetriNetUnfolder]: For 9461/9516 co-relation queries the response was YES. [2021-03-25 12:13:07,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5087 conditions, 523 events. 266/523 cut-off events. For 9461/9516 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2651 event pairs, 17 based on Foata normal form. 11/529 useless extension candidates. Maximal degree in co-relation 4960. Up to 256 conditions per place. [2021-03-25 12:13:07,632 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-25 12:13:07,643 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:07,643 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:07,643 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 12:13:07,643 INFO L480 AbstractCegarLoop]: Abstraction has has 156 places, 264 transitions, 4695 flow [2021-03-25 12:13:07,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,644 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:07,644 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:07,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 12:13:07,644 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:07,644 INFO L82 PathProgramCache]: Analyzing trace with hash -388269093, now seen corresponding path program 2 times [2021-03-25 12:13:07,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:07,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608485311] [2021-03-25 12:13:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:07,667 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:07,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:07,671 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:07,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:07,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:07,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:07,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:07,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:07,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:07,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:07,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:07,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:07,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608485311] [2021-03-25 12:13:07,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:07,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:07,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088908416] [2021-03-25 12:13:07,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:07,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:07,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:07,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:07,733 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:07,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 264 transitions, 4695 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:07,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:07,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:07,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:08,011 INFO L129 PetriNetUnfolder]: 313/605 cut-off events. [2021-03-25 12:13:08,011 INFO L130 PetriNetUnfolder]: For 11886/11930 co-relation queries the response was YES. [2021-03-25 12:13:08,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6299 conditions, 605 events. 313/605 cut-off events. For 11886/11930 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3055 event pairs, 21 based on Foata normal form. 21/625 useless extension candidates. Maximal degree in co-relation 6159. Up to 407 conditions per place. [2021-03-25 12:13:08,017 INFO L132 encePairwiseOnDemand]: 63/78 looper letters, 108 selfloop transitions, 160 changer transitions 7/283 dead transitions. [2021-03-25 12:13:08,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 283 transitions, 5681 flow [2021-03-25 12:13:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:08,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2021-03-25 12:13:08,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4342948717948718 [2021-03-25 12:13:08,019 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 271 transitions. [2021-03-25 12:13:08,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 271 transitions. [2021-03-25 12:13:08,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:08,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 271 transitions. [2021-03-25 12:13:08,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.875) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,020 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,020 INFO L185 Difference]: Start difference. First operand has 156 places, 264 transitions, 4695 flow. Second operand 8 states and 271 transitions. [2021-03-25 12:13:08,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 283 transitions, 5681 flow [2021-03-25 12:13:08,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 283 transitions, 5545 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:08,077 INFO L241 Difference]: Finished difference. Result has 161 places, 268 transitions, 5243 flow [2021-03-25 12:13:08,077 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4583, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5243, PETRI_PLACES=161, PETRI_TRANSITIONS=268} [2021-03-25 12:13:08,077 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 114 predicate places. [2021-03-25 12:13:08,077 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:08,078 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 268 transitions, 5243 flow [2021-03-25 12:13:08,078 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 268 transitions, 5243 flow [2021-03-25 12:13:08,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 268 transitions, 5243 flow [2021-03-25 12:13:08,135 INFO L129 PetriNetUnfolder]: 271/528 cut-off events. [2021-03-25 12:13:08,135 INFO L130 PetriNetUnfolder]: For 11291/11351 co-relation queries the response was YES. [2021-03-25 12:13:08,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5541 conditions, 528 events. 271/528 cut-off events. For 11291/11351 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2737 event pairs, 21 based on Foata normal form. 11/529 useless extension candidates. Maximal degree in co-relation 5458. Up to 265 conditions per place. [2021-03-25 12:13:08,142 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:08,155 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:08,155 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:08,156 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 12:13:08,156 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 268 transitions, 5243 flow [2021-03-25 12:13:08,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:08,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:08,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 12:13:08,158 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:08,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:08,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1256396065, now seen corresponding path program 3 times [2021-03-25 12:13:08,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:08,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382752467] [2021-03-25 12:13:08,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:08,184 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:08,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:08,189 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:08,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:08,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:08,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:08,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:08,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:08,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:08,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:08,246 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:08,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:08,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382752467] [2021-03-25 12:13:08,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:08,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:08,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696775172] [2021-03-25 12:13:08,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:08,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:08,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:08,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:08,249 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:08,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 268 transitions, 5243 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:08,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:08,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:08,511 INFO L129 PetriNetUnfolder]: 311/601 cut-off events. [2021-03-25 12:13:08,511 INFO L130 PetriNetUnfolder]: For 12977/13007 co-relation queries the response was YES. [2021-03-25 12:13:08,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6583 conditions, 601 events. 311/601 cut-off events. For 12977/13007 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3032 event pairs, 22 based on Foata normal form. 13/612 useless extension candidates. Maximal degree in co-relation 6497. Up to 483 conditions per place. [2021-03-25 12:13:08,518 INFO L132 encePairwiseOnDemand]: 66/78 looper letters, 199 selfloop transitions, 66 changer transitions 7/280 dead transitions. [2021-03-25 12:13:08,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 280 transitions, 6029 flow [2021-03-25 12:13:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 265 transitions. [2021-03-25 12:13:08,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42467948717948717 [2021-03-25 12:13:08,523 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 265 transitions. [2021-03-25 12:13:08,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 265 transitions. [2021-03-25 12:13:08,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:08,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 265 transitions. [2021-03-25 12:13:08,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.125) internal successors, (265), 8 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,528 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,528 INFO L185 Difference]: Start difference. First operand has 160 places, 268 transitions, 5243 flow. Second operand 8 states and 265 transitions. [2021-03-25 12:13:08,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 280 transitions, 6029 flow [2021-03-25 12:13:08,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 280 transitions, 5588 flow, removed 53 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:08,578 INFO L241 Difference]: Finished difference. Result has 162 places, 265 transitions, 4994 flow [2021-03-25 12:13:08,578 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4810, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4994, PETRI_PLACES=162, PETRI_TRANSITIONS=265} [2021-03-25 12:13:08,578 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 115 predicate places. [2021-03-25 12:13:08,578 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:08,579 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 265 transitions, 4994 flow [2021-03-25 12:13:08,579 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 265 transitions, 4994 flow [2021-03-25 12:13:08,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 265 transitions, 4994 flow [2021-03-25 12:13:08,623 INFO L129 PetriNetUnfolder]: 275/533 cut-off events. [2021-03-25 12:13:08,623 INFO L130 PetriNetUnfolder]: For 11182/11236 co-relation queries the response was YES. [2021-03-25 12:13:08,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5459 conditions, 533 events. 275/533 cut-off events. For 11182/11236 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2711 event pairs, 14 based on Foata normal form. 10/537 useless extension candidates. Maximal degree in co-relation 5332. Up to 265 conditions per place. [2021-03-25 12:13:08,628 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:08,637 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:08,637 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:08,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 12:13:08,637 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 265 transitions, 4994 flow [2021-03-25 12:13:08,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:08,637 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:08,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 12:13:08,637 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:08,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:08,638 INFO L82 PathProgramCache]: Analyzing trace with hash -889774695, now seen corresponding path program 4 times [2021-03-25 12:13:08,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:08,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488620818] [2021-03-25 12:13:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:08,653 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:08,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:08,658 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:08,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:08,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:08,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:08,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:08,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:08,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:08,727 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:08,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488620818] [2021-03-25 12:13:08,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:08,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:08,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659594350] [2021-03-25 12:13:08,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:08,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:08,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:08,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:08,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:08,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 265 transitions, 4994 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:08,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:08,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:08,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:09,035 INFO L129 PetriNetUnfolder]: 310/593 cut-off events. [2021-03-25 12:13:09,035 INFO L130 PetriNetUnfolder]: For 12863/12893 co-relation queries the response was YES. [2021-03-25 12:13:09,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6420 conditions, 593 events. 310/593 cut-off events. For 12863/12893 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2964 event pairs, 24 based on Foata normal form. 13/604 useless extension candidates. Maximal degree in co-relation 6282. Up to 476 conditions per place. [2021-03-25 12:13:09,042 INFO L132 encePairwiseOnDemand]: 66/78 looper letters, 191 selfloop transitions, 73 changer transitions 5/277 dead transitions. [2021-03-25 12:13:09,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 277 transitions, 5782 flow [2021-03-25 12:13:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:09,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 294 transitions. [2021-03-25 12:13:09,043 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4188034188034188 [2021-03-25 12:13:09,044 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 294 transitions. [2021-03-25 12:13:09,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 294 transitions. [2021-03-25 12:13:09,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:09,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 294 transitions. [2021-03-25 12:13:09,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 9 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,045 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,045 INFO L185 Difference]: Start difference. First operand has 160 places, 265 transitions, 4994 flow. Second operand 9 states and 294 transitions. [2021-03-25 12:13:09,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 277 transitions, 5782 flow [2021-03-25 12:13:09,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 277 transitions, 5504 flow, removed 22 selfloop flow, removed 13 redundant places. [2021-03-25 12:13:09,099 INFO L241 Difference]: Finished difference. Result has 159 places, 264 transitions, 4956 flow [2021-03-25 12:13:09,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4740, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4956, PETRI_PLACES=159, PETRI_TRANSITIONS=264} [2021-03-25 12:13:09,100 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 112 predicate places. [2021-03-25 12:13:09,100 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:09,100 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 264 transitions, 4956 flow [2021-03-25 12:13:09,100 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 264 transitions, 4956 flow [2021-03-25 12:13:09,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 264 transitions, 4956 flow [2021-03-25 12:13:09,154 INFO L129 PetriNetUnfolder]: 283/554 cut-off events. [2021-03-25 12:13:09,154 INFO L130 PetriNetUnfolder]: For 11032/11085 co-relation queries the response was YES. [2021-03-25 12:13:09,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5492 conditions, 554 events. 283/554 cut-off events. For 11032/11085 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2848 event pairs, 13 based on Foata normal form. 11/556 useless extension candidates. Maximal degree in co-relation 5357. Up to 269 conditions per place. [2021-03-25 12:13:09,161 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:09,172 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:09,172 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:09,172 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 12:13:09,173 INFO L480 AbstractCegarLoop]: Abstraction has has 159 places, 264 transitions, 4956 flow [2021-03-25 12:13:09,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:09,173 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:09,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 12:13:09,173 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:09,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2116346159, now seen corresponding path program 5 times [2021-03-25 12:13:09,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:09,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717207759] [2021-03-25 12:13:09,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:09,187 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:09,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:09,192 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:09,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:09,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:09,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:09,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:09,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:09,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:09,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:09,249 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:09,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:09,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717207759] [2021-03-25 12:13:09,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:09,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:09,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513950182] [2021-03-25 12:13:09,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:09,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:09,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:09,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:09,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:09,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 264 transitions, 4956 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:09,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:09,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:09,443 INFO L129 PetriNetUnfolder]: 308/595 cut-off events. [2021-03-25 12:13:09,443 INFO L130 PetriNetUnfolder]: For 11563/11613 co-relation queries the response was YES. [2021-03-25 12:13:09,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6275 conditions, 595 events. 308/595 cut-off events. For 11563/11613 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2995 event pairs, 33 based on Foata normal form. 20/613 useless extension candidates. Maximal degree in co-relation 6133. Up to 463 conditions per place. [2021-03-25 12:13:09,449 INFO L132 encePairwiseOnDemand]: 65/78 looper letters, 145 selfloop transitions, 104 changer transitions 10/267 dead transitions. [2021-03-25 12:13:09,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 267 transitions, 5524 flow [2021-03-25 12:13:09,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:09,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2021-03-25 12:13:09,457 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2021-03-25 12:13:09,457 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 260 transitions. [2021-03-25 12:13:09,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 260 transitions. [2021-03-25 12:13:09,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:09,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 260 transitions. [2021-03-25 12:13:09,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.5) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,458 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,458 INFO L185 Difference]: Start difference. First operand has 159 places, 264 transitions, 4956 flow. Second operand 8 states and 260 transitions. [2021-03-25 12:13:09,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 267 transitions, 5524 flow [2021-03-25 12:13:09,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 267 transitions, 5305 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:09,510 INFO L241 Difference]: Finished difference. Result has 157 places, 255 transitions, 4939 flow [2021-03-25 12:13:09,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4737, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4939, PETRI_PLACES=157, PETRI_TRANSITIONS=255} [2021-03-25 12:13:09,511 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 110 predicate places. [2021-03-25 12:13:09,511 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:09,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 255 transitions, 4939 flow [2021-03-25 12:13:09,511 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 255 transitions, 4939 flow [2021-03-25 12:13:09,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 255 transitions, 4939 flow [2021-03-25 12:13:09,562 INFO L129 PetriNetUnfolder]: 264/510 cut-off events. [2021-03-25 12:13:09,562 INFO L130 PetriNetUnfolder]: For 9914/9979 co-relation queries the response was YES. [2021-03-25 12:13:09,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5199 conditions, 510 events. 264/510 cut-off events. For 9914/9979 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2517 event pairs, 14 based on Foata normal form. 14/516 useless extension candidates. Maximal degree in co-relation 5075. Up to 252 conditions per place. [2021-03-25 12:13:09,567 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-25 12:13:09,575 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:09,575 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:09,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 12:13:09,576 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 255 transitions, 4939 flow [2021-03-25 12:13:09,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:09,576 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:09,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-25 12:13:09,576 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:09,576 INFO L82 PathProgramCache]: Analyzing trace with hash 837505163, now seen corresponding path program 2 times [2021-03-25 12:13:09,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:09,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000228094] [2021-03-25 12:13:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:09,590 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:09,595 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:09,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:09,601 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:09,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:09,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:09,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:09,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:09,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:09,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:09,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:09,664 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:09,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:09,669 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:09,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:09,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000228094] [2021-03-25 12:13:09,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:09,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:09,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446137372] [2021-03-25 12:13:09,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:09,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:09,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:09,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:09,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 78 [2021-03-25 12:13:09,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 255 transitions, 4939 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:09,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 78 [2021-03-25 12:13:09,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:09,911 INFO L129 PetriNetUnfolder]: 312/595 cut-off events. [2021-03-25 12:13:09,911 INFO L130 PetriNetUnfolder]: For 11523/11553 co-relation queries the response was YES. [2021-03-25 12:13:09,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6396 conditions, 595 events. 312/595 cut-off events. For 11523/11553 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2956 event pairs, 37 based on Foata normal form. 13/606 useless extension candidates. Maximal degree in co-relation 6260. Up to 462 conditions per place. [2021-03-25 12:13:09,916 INFO L132 encePairwiseOnDemand]: 65/78 looper letters, 142 selfloop transitions, 114 changer transitions 8/272 dead transitions. [2021-03-25 12:13:09,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 272 transitions, 5895 flow [2021-03-25 12:13:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:09,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 289 transitions. [2021-03-25 12:13:09,917 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4116809116809117 [2021-03-25 12:13:09,917 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 289 transitions. [2021-03-25 12:13:09,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 289 transitions. [2021-03-25 12:13:09,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:09,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 289 transitions. [2021-03-25 12:13:09,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.111111111111114) internal successors, (289), 9 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,919 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 78.0) internal successors, (780), 10 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:09,919 INFO L185 Difference]: Start difference. First operand has 151 places, 255 transitions, 4939 flow. Second operand 9 states and 289 transitions. [2021-03-25 12:13:09,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 272 transitions, 5895 flow [2021-03-25 12:13:09,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 272 transitions, 5312 flow, removed 43 selfloop flow, removed 14 redundant places. [2021-03-25 12:13:09,962 INFO L241 Difference]: Finished difference. Result has 150 places, 263 transitions, 4949 flow [2021-03-25 12:13:09,962 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=4425, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4949, PETRI_PLACES=150, PETRI_TRANSITIONS=263} [2021-03-25 12:13:09,963 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 103 predicate places. [2021-03-25 12:13:09,963 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:09,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 263 transitions, 4949 flow [2021-03-25 12:13:09,963 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 263 transitions, 4949 flow [2021-03-25 12:13:09,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 149 places, 263 transitions, 4949 flow [2021-03-25 12:13:10,013 INFO L129 PetriNetUnfolder]: 267/516 cut-off events. [2021-03-25 12:13:10,013 INFO L130 PetriNetUnfolder]: For 10150/10242 co-relation queries the response was YES. [2021-03-25 12:13:10,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5142 conditions, 516 events. 267/516 cut-off events. For 10150/10242 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2564 event pairs, 14 based on Foata normal form. 20/531 useless extension candidates. Maximal degree in co-relation 5020. Up to 255 conditions per place. [2021-03-25 12:13:10,020 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:10,080 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:10,080 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:13:10,080 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 12:13:10,080 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 263 transitions, 4983 flow [2021-03-25 12:13:10,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:10,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:10,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 12:13:10,081 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:10,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:10,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1354524213, now seen corresponding path program 3 times [2021-03-25 12:13:10,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:10,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582568669] [2021-03-25 12:13:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:10,094 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:10,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:10,099 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:10,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:10,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:10,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:10,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,140 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:13:10,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:10,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:10,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:10,156 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:10,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:10,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582568669] [2021-03-25 12:13:10,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:10,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:10,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010411048] [2021-03-25 12:13:10,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:10,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:10,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:10,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:10,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2021-03-25 12:13:10,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 263 transitions, 4983 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:10,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2021-03-25 12:13:10,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:10,405 INFO L129 PetriNetUnfolder]: 313/597 cut-off events. [2021-03-25 12:13:10,406 INFO L130 PetriNetUnfolder]: For 12051/12095 co-relation queries the response was YES. [2021-03-25 12:13:10,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6349 conditions, 597 events. 313/597 cut-off events. For 12051/12095 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2962 event pairs, 30 based on Foata normal form. 21/617 useless extension candidates. Maximal degree in co-relation 6218. Up to 479 conditions per place. [2021-03-25 12:13:10,411 INFO L132 encePairwiseOnDemand]: 65/80 looper letters, 189 selfloop transitions, 87 changer transitions 6/290 dead transitions. [2021-03-25 12:13:10,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 290 transitions, 6166 flow [2021-03-25 12:13:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:13:10,417 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39431818181818185 [2021-03-25 12:13:10,417 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:13:10,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:13:10,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:10,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:13:10,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 80.0) internal successors, (960), 12 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,418 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 80.0) internal successors, (960), 12 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,419 INFO L185 Difference]: Start difference. First operand has 149 places, 263 transitions, 4983 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:13:10,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 290 transitions, 6166 flow [2021-03-25 12:13:10,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 290 transitions, 5975 flow, removed 61 selfloop flow, removed 4 redundant places. [2021-03-25 12:13:10,469 INFO L241 Difference]: Finished difference. Result has 161 places, 278 transitions, 5485 flow [2021-03-25 12:13:10,470 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=4829, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5485, PETRI_PLACES=161, PETRI_TRANSITIONS=278} [2021-03-25 12:13:10,470 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 114 predicate places. [2021-03-25 12:13:10,470 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:10,470 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 278 transitions, 5485 flow [2021-03-25 12:13:10,470 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 278 transitions, 5485 flow [2021-03-25 12:13:10,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 278 transitions, 5485 flow [2021-03-25 12:13:10,531 INFO L129 PetriNetUnfolder]: 292/572 cut-off events. [2021-03-25 12:13:10,531 INFO L130 PetriNetUnfolder]: For 12602/12671 co-relation queries the response was YES. [2021-03-25 12:13:10,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5827 conditions, 572 events. 292/572 cut-off events. For 12602/12671 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2951 event pairs, 12 based on Foata normal form. 11/579 useless extension candidates. Maximal degree in co-relation 5688. Up to 276 conditions per place. [2021-03-25 12:13:10,539 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 12:13:10,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:10,597 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:10,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 12:13:10,597 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 278 transitions, 5489 flow [2021-03-25 12:13:10,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,597 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:10,597 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:10,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 12:13:10,597 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:10,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:10,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1326786502, now seen corresponding path program 1 times [2021-03-25 12:13:10,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:10,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152913416] [2021-03-25 12:13:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:10,610 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:10,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:10,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:10,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:10,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:10,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:10,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:10,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:10,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:10,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:10,677 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:10,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:10,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:10,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152913416] [2021-03-25 12:13:10,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:10,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:10,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867659908] [2021-03-25 12:13:10,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:10,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:10,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:10,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:10,681 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:10,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 278 transitions, 5489 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:10,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:10,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:10,913 INFO L129 PetriNetUnfolder]: 310/596 cut-off events. [2021-03-25 12:13:10,913 INFO L130 PetriNetUnfolder]: For 13464/13494 co-relation queries the response was YES. [2021-03-25 12:13:10,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6605 conditions, 596 events. 310/596 cut-off events. For 13464/13494 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3018 event pairs, 16 based on Foata normal form. 16/611 useless extension candidates. Maximal degree in co-relation 6467. Up to 460 conditions per place. [2021-03-25 12:13:10,918 INFO L132 encePairwiseOnDemand]: 66/81 looper letters, 177 selfloop transitions, 97 changer transitions 9/291 dead transitions. [2021-03-25 12:13:10,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 291 transitions, 6341 flow [2021-03-25 12:13:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2021-03-25 12:13:10,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41203703703703703 [2021-03-25 12:13:10,933 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 267 transitions. [2021-03-25 12:13:10,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 267 transitions. [2021-03-25 12:13:10,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:10,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 267 transitions. [2021-03-25 12:13:10,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,934 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:10,934 INFO L185 Difference]: Start difference. First operand has 161 places, 278 transitions, 5489 flow. Second operand 8 states and 267 transitions. [2021-03-25 12:13:10,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 291 transitions, 6341 flow [2021-03-25 12:13:10,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 291 transitions, 6003 flow, removed 65 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:10,993 INFO L241 Difference]: Finished difference. Result has 164 places, 274 transitions, 5423 flow [2021-03-25 12:13:10,994 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=5155, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5423, PETRI_PLACES=164, PETRI_TRANSITIONS=274} [2021-03-25 12:13:10,994 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 117 predicate places. [2021-03-25 12:13:10,994 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:10,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 274 transitions, 5423 flow [2021-03-25 12:13:10,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 274 transitions, 5423 flow [2021-03-25 12:13:10,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 274 transitions, 5423 flow [2021-03-25 12:13:11,074 INFO L129 PetriNetUnfolder]: 274/540 cut-off events. [2021-03-25 12:13:11,075 INFO L130 PetriNetUnfolder]: For 12736/12812 co-relation queries the response was YES. [2021-03-25 12:13:11,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5681 conditions, 540 events. 274/540 cut-off events. For 12736/12812 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2749 event pairs, 11 based on Foata normal form. 13/550 useless extension candidates. Maximal degree in co-relation 5544. Up to 262 conditions per place. [2021-03-25 12:13:11,082 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 12:13:11,095 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:11,095 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:11,095 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-25 12:13:11,095 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 274 transitions, 5423 flow [2021-03-25 12:13:11,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:11,096 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:11,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-25 12:13:11,096 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:11,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:11,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1556967193, now seen corresponding path program 1 times [2021-03-25 12:13:11,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:11,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981533702] [2021-03-25 12:13:11,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:11,133 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:11,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:11,138 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:11,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:11,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:11,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:11,185 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:11,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:11,198 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:11,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:11,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981533702] [2021-03-25 12:13:11,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:11,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:11,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396486647] [2021-03-25 12:13:11,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:11,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:11,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:11,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:11,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:11,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 274 transitions, 5423 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:11,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:11,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:11,454 INFO L129 PetriNetUnfolder]: 308/594 cut-off events. [2021-03-25 12:13:11,454 INFO L130 PetriNetUnfolder]: For 14089/14119 co-relation queries the response was YES. [2021-03-25 12:13:11,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6627 conditions, 594 events. 308/594 cut-off events. For 14089/14119 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2980 event pairs, 17 based on Foata normal form. 13/605 useless extension candidates. Maximal degree in co-relation 6484. Up to 476 conditions per place. [2021-03-25 12:13:11,460 INFO L132 encePairwiseOnDemand]: 69/81 looper letters, 200 selfloop transitions, 70 changer transitions 9/287 dead transitions. [2021-03-25 12:13:11,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 287 transitions, 6270 flow [2021-03-25 12:13:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:11,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 12:13:11,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2021-03-25 12:13:11,461 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 12:13:11,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 12:13:11,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:11,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 12:13:11,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,466 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,466 INFO L185 Difference]: Start difference. First operand has 161 places, 274 transitions, 5423 flow. Second operand 8 states and 264 transitions. [2021-03-25 12:13:11,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 287 transitions, 6270 flow [2021-03-25 12:13:11,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 287 transitions, 6004 flow, removed 16 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:11,512 INFO L241 Difference]: Finished difference. Result has 162 places, 269 transitions, 5321 flow [2021-03-25 12:13:11,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=5173, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5321, PETRI_PLACES=162, PETRI_TRANSITIONS=269} [2021-03-25 12:13:11,512 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 115 predicate places. [2021-03-25 12:13:11,512 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:11,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 269 transitions, 5321 flow [2021-03-25 12:13:11,512 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 269 transitions, 5321 flow [2021-03-25 12:13:11,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 269 transitions, 5321 flow [2021-03-25 12:13:11,555 INFO L129 PetriNetUnfolder]: 270/530 cut-off events. [2021-03-25 12:13:11,555 INFO L130 PetriNetUnfolder]: For 12936/13005 co-relation queries the response was YES. [2021-03-25 12:13:11,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 530 events. 270/530 cut-off events. For 12936/13005 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2694 event pairs, 15 based on Foata normal form. 13/539 useless extension candidates. Maximal degree in co-relation 5502. Up to 255 conditions per place. [2021-03-25 12:13:11,560 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 12:13:11,569 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:11,569 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:11,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 12:13:11,569 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 269 transitions, 5321 flow [2021-03-25 12:13:11,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:11,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:11,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-25 12:13:11,570 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:11,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:11,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1792183669, now seen corresponding path program 4 times [2021-03-25 12:13:11,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:11,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666103691] [2021-03-25 12:13:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:11,582 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:11,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:11,587 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:11,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:11,594 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:11,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:11,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:11,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:11,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:11,651 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:11,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:11,655 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:11,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:11,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:11,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666103691] [2021-03-25 12:13:11,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:11,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:11,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750700597] [2021-03-25 12:13:11,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:11,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:11,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:11,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 269 transitions, 5321 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:11,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:11,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:11,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:11,999 INFO L129 PetriNetUnfolder]: 316/604 cut-off events. [2021-03-25 12:13:11,999 INFO L130 PetriNetUnfolder]: For 14573/14603 co-relation queries the response was YES. [2021-03-25 12:13:12,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6843 conditions, 604 events. 316/604 cut-off events. For 14573/14603 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3001 event pairs, 33 based on Foata normal form. 13/615 useless extension candidates. Maximal degree in co-relation 6701. Up to 460 conditions per place. [2021-03-25 12:13:12,004 INFO L132 encePairwiseOnDemand]: 68/81 looper letters, 140 selfloop transitions, 134 changer transitions 10/292 dead transitions. [2021-03-25 12:13:12,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 292 transitions, 6526 flow [2021-03-25 12:13:12,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 349 transitions. [2021-03-25 12:13:12,008 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39169472502805835 [2021-03-25 12:13:12,008 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 349 transitions. [2021-03-25 12:13:12,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 349 transitions. [2021-03-25 12:13:12,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:12,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 349 transitions. [2021-03-25 12:13:12,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.727272727272727) internal successors, (349), 11 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,014 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,014 INFO L185 Difference]: Start difference. First operand has 160 places, 269 transitions, 5321 flow. Second operand 11 states and 349 transitions. [2021-03-25 12:13:12,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 292 transitions, 6526 flow [2021-03-25 12:13:12,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 292 transitions, 5966 flow, removed 25 selfloop flow, removed 14 redundant places. [2021-03-25 12:13:12,056 INFO L241 Difference]: Finished difference. Result has 159 places, 281 transitions, 5498 flow [2021-03-25 12:13:12,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=4831, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5498, PETRI_PLACES=159, PETRI_TRANSITIONS=281} [2021-03-25 12:13:12,056 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 112 predicate places. [2021-03-25 12:13:12,056 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:12,056 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 281 transitions, 5498 flow [2021-03-25 12:13:12,056 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 281 transitions, 5498 flow [2021-03-25 12:13:12,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 281 transitions, 5498 flow [2021-03-25 12:13:12,097 INFO L129 PetriNetUnfolder]: 276/535 cut-off events. [2021-03-25 12:13:12,097 INFO L130 PetriNetUnfolder]: For 11730/11789 co-relation queries the response was YES. [2021-03-25 12:13:12,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5550 conditions, 535 events. 276/535 cut-off events. For 11730/11789 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2711 event pairs, 11 based on Foata normal form. 10/541 useless extension candidates. Maximal degree in co-relation 5427. Up to 265 conditions per place. [2021-03-25 12:13:12,102 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 12:13:12,111 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:12,111 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:12,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 12:13:12,112 INFO L480 AbstractCegarLoop]: Abstraction has has 159 places, 281 transitions, 5498 flow [2021-03-25 12:13:12,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:12,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:12,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-25 12:13:12,112 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:12,112 INFO L82 PathProgramCache]: Analyzing trace with hash 930530107, now seen corresponding path program 5 times [2021-03-25 12:13:12,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:12,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933924025] [2021-03-25 12:13:12,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:12,125 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:12,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:12,129 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:12,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:12,136 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:12,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:12,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:12,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:12,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:12,191 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:12,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:12,198 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:12,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:12,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933924025] [2021-03-25 12:13:12,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:12,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:12,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873633770] [2021-03-25 12:13:12,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:12,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:12,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:12,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:12,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:12,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 281 transitions, 5498 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:12,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:12,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:12,511 INFO L129 PetriNetUnfolder]: 313/605 cut-off events. [2021-03-25 12:13:12,511 INFO L130 PetriNetUnfolder]: For 13143/13173 co-relation queries the response was YES. [2021-03-25 12:13:12,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6553 conditions, 605 events. 313/605 cut-off events. For 13143/13173 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3067 event pairs, 17 based on Foata normal form. 16/620 useless extension candidates. Maximal degree in co-relation 6416. Up to 426 conditions per place. [2021-03-25 12:13:12,517 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 121 selfloop transitions, 160 changer transitions 8/297 dead transitions. [2021-03-25 12:13:12,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 297 transitions, 6410 flow [2021-03-25 12:13:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 300 transitions. [2021-03-25 12:13:12,519 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.411522633744856 [2021-03-25 12:13:12,519 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 300 transitions. [2021-03-25 12:13:12,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 300 transitions. [2021-03-25 12:13:12,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:12,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 300 transitions. [2021-03-25 12:13:12,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.333333333333336) internal successors, (300), 9 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,520 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,520 INFO L185 Difference]: Start difference. First operand has 159 places, 281 transitions, 5498 flow. Second operand 9 states and 300 transitions. [2021-03-25 12:13:12,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 297 transitions, 6410 flow [2021-03-25 12:13:12,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 297 transitions, 6267 flow, removed 36 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:12,579 INFO L241 Difference]: Finished difference. Result has 166 places, 284 transitions, 5962 flow [2021-03-25 12:13:12,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=5359, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5962, PETRI_PLACES=166, PETRI_TRANSITIONS=284} [2021-03-25 12:13:12,580 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 119 predicate places. [2021-03-25 12:13:12,580 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:12,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 284 transitions, 5962 flow [2021-03-25 12:13:12,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 284 transitions, 5962 flow [2021-03-25 12:13:12,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 284 transitions, 5962 flow [2021-03-25 12:13:12,633 INFO L129 PetriNetUnfolder]: 276/535 cut-off events. [2021-03-25 12:13:12,633 INFO L130 PetriNetUnfolder]: For 13846/13900 co-relation queries the response was YES. [2021-03-25 12:13:12,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5982 conditions, 535 events. 276/535 cut-off events. For 13846/13900 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2657 event pairs, 26 based on Foata normal form. 12/543 useless extension candidates. Maximal degree in co-relation 5855. Up to 266 conditions per place. [2021-03-25 12:13:12,638 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 12:13:12,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:12,648 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:12,648 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 12:13:12,648 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 284 transitions, 5962 flow [2021-03-25 12:13:12,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:12,649 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:12,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-25 12:13:12,649 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:12,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:12,649 INFO L82 PathProgramCache]: Analyzing trace with hash 103142427, now seen corresponding path program 6 times [2021-03-25 12:13:12,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:12,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698040306] [2021-03-25 12:13:12,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:12,661 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:12,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:12,666 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:12,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:12,673 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:12,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:12,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:12,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:12,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:12,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:12,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:12,728 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:12,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:12,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:12,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698040306] [2021-03-25 12:13:12,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:12,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:12,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645007558] [2021-03-25 12:13:12,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:12,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:12,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:12,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:12,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:12,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 284 transitions, 5962 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:12,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:12,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:12,986 INFO L129 PetriNetUnfolder]: 313/599 cut-off events. [2021-03-25 12:13:12,986 INFO L130 PetriNetUnfolder]: For 15537/15567 co-relation queries the response was YES. [2021-03-25 12:13:12,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7010 conditions, 599 events. 313/599 cut-off events. For 15537/15567 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3006 event pairs, 27 based on Foata normal form. 16/614 useless extension candidates. Maximal degree in co-relation 6874. Up to 430 conditions per place. [2021-03-25 12:13:12,991 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 120 selfloop transitions, 162 changer transitions 8/298 dead transitions. [2021-03-25 12:13:12,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 298 transitions, 6878 flow [2021-03-25 12:13:12,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:12,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 299 transitions. [2021-03-25 12:13:12,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4101508916323731 [2021-03-25 12:13:12,992 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 299 transitions. [2021-03-25 12:13:12,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 299 transitions. [2021-03-25 12:13:12,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:12,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 299 transitions. [2021-03-25 12:13:12,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.22222222222222) internal successors, (299), 9 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,994 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:12,994 INFO L185 Difference]: Start difference. First operand has 166 places, 284 transitions, 5962 flow. Second operand 9 states and 299 transitions. [2021-03-25 12:13:12,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 298 transitions, 6878 flow [2021-03-25 12:13:13,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 298 transitions, 6649 flow, removed 19 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:13,040 INFO L241 Difference]: Finished difference. Result has 173 places, 286 transitions, 6333 flow [2021-03-25 12:13:13,040 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=5747, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6333, PETRI_PLACES=173, PETRI_TRANSITIONS=286} [2021-03-25 12:13:13,040 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 126 predicate places. [2021-03-25 12:13:13,040 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:13,041 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 286 transitions, 6333 flow [2021-03-25 12:13:13,041 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 286 transitions, 6333 flow [2021-03-25 12:13:13,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 286 transitions, 6333 flow [2021-03-25 12:13:13,089 INFO L129 PetriNetUnfolder]: 295/581 cut-off events. [2021-03-25 12:13:13,089 INFO L130 PetriNetUnfolder]: For 15205/15253 co-relation queries the response was YES. [2021-03-25 12:13:13,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6503 conditions, 581 events. 295/581 cut-off events. For 15205/15253 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3052 event pairs, 12 based on Foata normal form. 8/585 useless extension candidates. Maximal degree in co-relation 6360. Up to 281 conditions per place. [2021-03-25 12:13:13,095 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 12:13:13,105 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:13,105 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:13,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 12:13:13,105 INFO L480 AbstractCegarLoop]: Abstraction has has 173 places, 286 transitions, 6333 flow [2021-03-25 12:13:13,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:13,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:13,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-25 12:13:13,106 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:13,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:13,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1756321645, now seen corresponding path program 7 times [2021-03-25 12:13:13,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:13,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027629633] [2021-03-25 12:13:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:13,118 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:13,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:13,123 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:13,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:13,130 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:13,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:13,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:13,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:13,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:13,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:13,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:13,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:13,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:13,185 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:13,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:13,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:13,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027629633] [2021-03-25 12:13:13,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:13,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:13,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747448756] [2021-03-25 12:13:13,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:13,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:13,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:13,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:13,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:13,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 286 transitions, 6333 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:13,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:13,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:13,495 INFO L129 PetriNetUnfolder]: 316/605 cut-off events. [2021-03-25 12:13:13,495 INFO L130 PetriNetUnfolder]: For 17087/17117 co-relation queries the response was YES. [2021-03-25 12:13:13,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 605 events. 316/605 cut-off events. For 17087/17117 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3035 event pairs, 25 based on Foata normal form. 16/620 useless extension candidates. Maximal degree in co-relation 7162. Up to 471 conditions per place. [2021-03-25 12:13:13,502 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 185 selfloop transitions, 107 changer transitions 7/307 dead transitions. [2021-03-25 12:13:13,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 307 transitions, 7397 flow [2021-03-25 12:13:13,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:13,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 12:13:13,503 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40054869684499317 [2021-03-25 12:13:13,504 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 12:13:13,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 12:13:13,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:13,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 12:13:13,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,505 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,505 INFO L185 Difference]: Start difference. First operand has 173 places, 286 transitions, 6333 flow. Second operand 9 states and 292 transitions. [2021-03-25 12:13:13,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 307 transitions, 7397 flow [2021-03-25 12:13:13,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 307 transitions, 6929 flow, removed 28 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:13,578 INFO L241 Difference]: Finished difference. Result has 175 places, 293 transitions, 6368 flow [2021-03-25 12:13:13,578 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=5889, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6368, PETRI_PLACES=175, PETRI_TRANSITIONS=293} [2021-03-25 12:13:13,579 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 128 predicate places. [2021-03-25 12:13:13,579 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:13,579 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 293 transitions, 6368 flow [2021-03-25 12:13:13,579 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 293 transitions, 6368 flow [2021-03-25 12:13:13,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 293 transitions, 6368 flow [2021-03-25 12:13:13,643 INFO L129 PetriNetUnfolder]: 285/565 cut-off events. [2021-03-25 12:13:13,643 INFO L130 PetriNetUnfolder]: For 15120/15197 co-relation queries the response was YES. [2021-03-25 12:13:13,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6386 conditions, 565 events. 285/565 cut-off events. For 15120/15197 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2937 event pairs, 8 based on Foata normal form. 8/567 useless extension candidates. Maximal degree in co-relation 6243. Up to 273 conditions per place. [2021-03-25 12:13:13,652 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 12:13:13,666 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:13,666 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:13,666 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-03-25 12:13:13,667 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 293 transitions, 6368 flow [2021-03-25 12:13:13,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:13,667 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:13,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-25 12:13:13,667 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:13,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:13,668 INFO L82 PathProgramCache]: Analyzing trace with hash -658902277, now seen corresponding path program 8 times [2021-03-25 12:13:13,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:13,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185880704] [2021-03-25 12:13:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:13,687 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:13,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:13,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:13,700 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:13,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:13,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:13,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:13,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:13,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:13,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:13,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:13,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:13,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:13,764 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:13,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:13,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185880704] [2021-03-25 12:13:13,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:13,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:13,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567137594] [2021-03-25 12:13:13,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:13,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:13,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:13,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:13,769 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:13,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 293 transitions, 6368 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:13,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:13,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:13,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:14,119 INFO L129 PetriNetUnfolder]: 314/606 cut-off events. [2021-03-25 12:13:14,119 INFO L130 PetriNetUnfolder]: For 16296/16326 co-relation queries the response was YES. [2021-03-25 12:13:14,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7282 conditions, 606 events. 314/606 cut-off events. For 16296/16326 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3066 event pairs, 30 based on Foata normal form. 16/621 useless extension candidates. Maximal degree in co-relation 7140. Up to 425 conditions per place. [2021-03-25 12:13:14,125 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 116 selfloop transitions, 174 changer transitions 9/307 dead transitions. [2021-03-25 12:13:14,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 307 transitions, 7309 flow [2021-03-25 12:13:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 356 transitions. [2021-03-25 12:13:14,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3995510662177329 [2021-03-25 12:13:14,126 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 356 transitions. [2021-03-25 12:13:14,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 356 transitions. [2021-03-25 12:13:14,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:14,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 356 transitions. [2021-03-25 12:13:14,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.36363636363637) internal successors, (356), 11 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,127 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,127 INFO L185 Difference]: Start difference. First operand has 174 places, 293 transitions, 6368 flow. Second operand 11 states and 356 transitions. [2021-03-25 12:13:14,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 307 transitions, 7309 flow [2021-03-25 12:13:14,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 307 transitions, 6918 flow, removed 42 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:14,192 INFO L241 Difference]: Finished difference. Result has 180 places, 293 transitions, 6552 flow [2021-03-25 12:13:14,192 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=6018, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6552, PETRI_PLACES=180, PETRI_TRANSITIONS=293} [2021-03-25 12:13:14,192 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 133 predicate places. [2021-03-25 12:13:14,192 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:14,193 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 293 transitions, 6552 flow [2021-03-25 12:13:14,193 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 293 transitions, 6552 flow [2021-03-25 12:13:14,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 180 places, 293 transitions, 6552 flow [2021-03-25 12:13:14,241 INFO L129 PetriNetUnfolder]: 281/553 cut-off events. [2021-03-25 12:13:14,241 INFO L130 PetriNetUnfolder]: For 16028/16124 co-relation queries the response was YES. [2021-03-25 12:13:14,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6438 conditions, 553 events. 281/553 cut-off events. For 16028/16124 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2869 event pairs, 10 based on Foata normal form. 12/560 useless extension candidates. Maximal degree in co-relation 6297. Up to 271 conditions per place. [2021-03-25 12:13:14,246 INFO L142 LiptonReduction]: Number of co-enabled transitions 232 [2021-03-25 12:13:14,257 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:14,257 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:14,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-25 12:13:14,257 INFO L480 AbstractCegarLoop]: Abstraction has has 180 places, 293 transitions, 6552 flow [2021-03-25 12:13:14,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:14,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:14,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-25 12:13:14,258 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:14,258 INFO L82 PathProgramCache]: Analyzing trace with hash -977895205, now seen corresponding path program 9 times [2021-03-25 12:13:14,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:14,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272697325] [2021-03-25 12:13:14,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:14,274 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:14,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:14,278 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:14,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:14,286 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:14,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:14,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:14,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:14,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:14,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:14,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:14,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:14,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:14,352 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:14,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:14,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272697325] [2021-03-25 12:13:14,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:14,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:14,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436917249] [2021-03-25 12:13:14,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:14,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:14,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:14,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:14,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:14,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 293 transitions, 6552 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:14,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:14,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:14,675 INFO L129 PetriNetUnfolder]: 324/623 cut-off events. [2021-03-25 12:13:14,675 INFO L130 PetriNetUnfolder]: For 18115/18162 co-relation queries the response was YES. [2021-03-25 12:13:14,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7670 conditions, 623 events. 324/623 cut-off events. For 18115/18162 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3172 event pairs, 13 based on Foata normal form. 21/643 useless extension candidates. Maximal degree in co-relation 7526. Up to 471 conditions per place. [2021-03-25 12:13:14,681 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 179 selfloop transitions, 123 changer transitions 16/326 dead transitions. [2021-03-25 12:13:14,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 326 transitions, 8032 flow [2021-03-25 12:13:14,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 350 transitions. [2021-03-25 12:13:14,681 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39281705948372614 [2021-03-25 12:13:14,682 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 350 transitions. [2021-03-25 12:13:14,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 350 transitions. [2021-03-25 12:13:14,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:14,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 350 transitions. [2021-03-25 12:13:14,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,683 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,683 INFO L185 Difference]: Start difference. First operand has 180 places, 293 transitions, 6552 flow. Second operand 11 states and 350 transitions. [2021-03-25 12:13:14,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 326 transitions, 8032 flow [2021-03-25 12:13:14,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 326 transitions, 7471 flow, removed 27 selfloop flow, removed 12 redundant places. [2021-03-25 12:13:14,738 INFO L241 Difference]: Finished difference. Result has 183 places, 304 transitions, 6706 flow [2021-03-25 12:13:14,738 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=6052, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6706, PETRI_PLACES=183, PETRI_TRANSITIONS=304} [2021-03-25 12:13:14,739 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 136 predicate places. [2021-03-25 12:13:14,739 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:14,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 304 transitions, 6706 flow [2021-03-25 12:13:14,739 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 304 transitions, 6706 flow [2021-03-25 12:13:14,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 181 places, 304 transitions, 6706 flow [2021-03-25 12:13:14,790 INFO L129 PetriNetUnfolder]: 297/588 cut-off events. [2021-03-25 12:13:14,791 INFO L130 PetriNetUnfolder]: For 16888/16954 co-relation queries the response was YES. [2021-03-25 12:13:14,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6693 conditions, 588 events. 297/588 cut-off events. For 16888/16954 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3145 event pairs, 7 based on Foata normal form. 12/596 useless extension candidates. Maximal degree in co-relation 6549. Up to 285 conditions per place. [2021-03-25 12:13:14,797 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 12:13:14,808 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:14,808 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:14,808 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-25 12:13:14,808 INFO L480 AbstractCegarLoop]: Abstraction has has 181 places, 304 transitions, 6706 flow [2021-03-25 12:13:14,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:14,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:14,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-25 12:13:14,808 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:14,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:14,809 INFO L82 PathProgramCache]: Analyzing trace with hash -851197655, now seen corresponding path program 10 times [2021-03-25 12:13:14,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:14,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941260689] [2021-03-25 12:13:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:14,830 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:14,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:14,835 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:14,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:14,842 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:14,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:14,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:14,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:14,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:14,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:14,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:14,880 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:14,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:14,887 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:14,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:14,900 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:14,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:14,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941260689] [2021-03-25 12:13:14,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:14,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:14,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052275505] [2021-03-25 12:13:14,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:14,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:14,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:14,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:14,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:14,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 304 transitions, 6706 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:14,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:14,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:14,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:15,160 INFO L129 PetriNetUnfolder]: 318/616 cut-off events. [2021-03-25 12:13:15,160 INFO L130 PetriNetUnfolder]: For 18915/18951 co-relation queries the response was YES. [2021-03-25 12:13:15,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7491 conditions, 616 events. 318/616 cut-off events. For 18915/18951 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3190 event pairs, 24 based on Foata normal form. 22/637 useless extension candidates. Maximal degree in co-relation 7349. Up to 524 conditions per place. [2021-03-25 12:13:15,166 INFO L132 encePairwiseOnDemand]: 69/81 looper letters, 260 selfloop transitions, 51 changer transitions 2/321 dead transitions. [2021-03-25 12:13:15,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 321 transitions, 7564 flow [2021-03-25 12:13:15,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 290 transitions. [2021-03-25 12:13:15,172 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39780521262002744 [2021-03-25 12:13:15,172 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 290 transitions. [2021-03-25 12:13:15,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 290 transitions. [2021-03-25 12:13:15,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:15,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 290 transitions. [2021-03-25 12:13:15,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.22222222222222) internal successors, (290), 9 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,173 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,173 INFO L185 Difference]: Start difference. First operand has 181 places, 304 transitions, 6706 flow. Second operand 9 states and 290 transitions. [2021-03-25 12:13:15,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 321 transitions, 7564 flow [2021-03-25 12:13:15,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 321 transitions, 7190 flow, removed 55 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:15,237 INFO L241 Difference]: Finished difference. Result has 183 places, 311 transitions, 6590 flow [2021-03-25 12:13:15,237 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=6335, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6590, PETRI_PLACES=183, PETRI_TRANSITIONS=311} [2021-03-25 12:13:15,237 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 136 predicate places. [2021-03-25 12:13:15,237 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:15,237 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 311 transitions, 6590 flow [2021-03-25 12:13:15,238 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 311 transitions, 6590 flow [2021-03-25 12:13:15,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 182 places, 311 transitions, 6590 flow [2021-03-25 12:13:15,288 INFO L129 PetriNetUnfolder]: 279/552 cut-off events. [2021-03-25 12:13:15,289 INFO L130 PetriNetUnfolder]: For 14902/14966 co-relation queries the response was YES. [2021-03-25 12:13:15,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6285 conditions, 552 events. 279/552 cut-off events. For 14902/14966 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 2905 event pairs, 11 based on Foata normal form. 11/559 useless extension candidates. Maximal degree in co-relation 6214. Up to 273 conditions per place. [2021-03-25 12:13:15,295 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-25 12:13:15,309 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:15,309 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:15,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 12:13:15,310 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 311 transitions, 6590 flow [2021-03-25 12:13:15,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,310 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:15,310 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:15,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-25 12:13:15,310 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:15,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:15,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2108854931, now seen corresponding path program 11 times [2021-03-25 12:13:15,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:15,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341509933] [2021-03-25 12:13:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:15,322 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:15,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:15,327 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:15,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:15,334 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:15,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:15,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:15,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:15,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:15,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:15,370 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:13:15,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:15,373 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:15,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:15,378 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:15,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:15,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341509933] [2021-03-25 12:13:15,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:15,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:15,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151248926] [2021-03-25 12:13:15,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:15,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:15,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:15,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:15,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:15,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 311 transitions, 6590 flow. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:15,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:15,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:15,601 INFO L129 PetriNetUnfolder]: 317/620 cut-off events. [2021-03-25 12:13:15,601 INFO L130 PetriNetUnfolder]: For 17519/17539 co-relation queries the response was YES. [2021-03-25 12:13:15,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7353 conditions, 620 events. 317/620 cut-off events. For 17519/17539 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3234 event pairs, 27 based on Foata normal form. 14/633 useless extension candidates. Maximal degree in co-relation 7280. Up to 547 conditions per place. [2021-03-25 12:13:15,607 INFO L132 encePairwiseOnDemand]: 69/81 looper letters, 275 selfloop transitions, 36 changer transitions 3/322 dead transitions. [2021-03-25 12:13:15,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 322 transitions, 7431 flow [2021-03-25 12:13:15,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:15,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2021-03-25 12:13:15,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39351851851851855 [2021-03-25 12:13:15,608 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 255 transitions. [2021-03-25 12:13:15,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 255 transitions. [2021-03-25 12:13:15,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:15,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 255 transitions. [2021-03-25 12:13:15,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.875) internal successors, (255), 8 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,609 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 81.0) internal successors, (729), 9 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,609 INFO L185 Difference]: Start difference. First operand has 182 places, 311 transitions, 6590 flow. Second operand 8 states and 255 transitions. [2021-03-25 12:13:15,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 322 transitions, 7431 flow [2021-03-25 12:13:15,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 322 transitions, 7335 flow, removed 25 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:15,672 INFO L241 Difference]: Finished difference. Result has 188 places, 315 transitions, 6701 flow [2021-03-25 12:13:15,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=6494, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6701, PETRI_PLACES=188, PETRI_TRANSITIONS=315} [2021-03-25 12:13:15,672 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 141 predicate places. [2021-03-25 12:13:15,672 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:15,673 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 315 transitions, 6701 flow [2021-03-25 12:13:15,673 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 315 transitions, 6701 flow [2021-03-25 12:13:15,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 188 places, 315 transitions, 6701 flow [2021-03-25 12:13:15,733 INFO L129 PetriNetUnfolder]: 290/578 cut-off events. [2021-03-25 12:13:15,733 INFO L130 PetriNetUnfolder]: For 16717/16753 co-relation queries the response was YES. [2021-03-25 12:13:15,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6600 conditions, 578 events. 290/578 cut-off events. For 16717/16753 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3078 event pairs, 10 based on Foata normal form. 13/587 useless extension candidates. Maximal degree in co-relation 6455. Up to 282 conditions per place. [2021-03-25 12:13:15,739 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-25 12:13:15,751 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:15,751 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:15,751 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 12:13:15,751 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 315 transitions, 6701 flow [2021-03-25 12:13:15,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:15,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:15,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-25 12:13:15,752 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:15,752 INFO L82 PathProgramCache]: Analyzing trace with hash -315967853, now seen corresponding path program 12 times [2021-03-25 12:13:15,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:15,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141188150] [2021-03-25 12:13:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:15,763 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:15,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:15,768 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:15,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:15,775 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:15,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:15,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:15,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:15,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:15,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:15,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:15,812 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:15,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:15,825 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:15,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:15,840 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:15,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:15,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141188150] [2021-03-25 12:13:15,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:15,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:15,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443451423] [2021-03-25 12:13:15,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:15,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:15,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:15,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:15,844 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:15,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 315 transitions, 6701 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:15,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:15,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:15,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:16,152 INFO L129 PetriNetUnfolder]: 320/628 cut-off events. [2021-03-25 12:13:16,153 INFO L130 PetriNetUnfolder]: For 19037/19067 co-relation queries the response was YES. [2021-03-25 12:13:16,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7551 conditions, 628 events. 320/628 cut-off events. For 19037/19067 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3287 event pairs, 21 based on Foata normal form. 20/648 useless extension candidates. Maximal degree in co-relation 7403. Up to 453 conditions per place. [2021-03-25 12:13:16,159 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 193 selfloop transitions, 127 changer transitions 7/335 dead transitions. [2021-03-25 12:13:16,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 335 transitions, 7777 flow [2021-03-25 12:13:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:16,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2021-03-25 12:13:16,160 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40617283950617283 [2021-03-25 12:13:16,160 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 329 transitions. [2021-03-25 12:13:16,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 329 transitions. [2021-03-25 12:13:16,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:16,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 329 transitions. [2021-03-25 12:13:16,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,162 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,162 INFO L185 Difference]: Start difference. First operand has 188 places, 315 transitions, 6701 flow. Second operand 10 states and 329 transitions. [2021-03-25 12:13:16,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 335 transitions, 7777 flow [2021-03-25 12:13:16,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 335 transitions, 7635 flow, removed 32 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:16,228 INFO L241 Difference]: Finished difference. Result has 198 places, 320 transitions, 7130 flow [2021-03-25 12:13:16,228 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=6563, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7130, PETRI_PLACES=198, PETRI_TRANSITIONS=320} [2021-03-25 12:13:16,229 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 151 predicate places. [2021-03-25 12:13:16,229 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:16,229 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 320 transitions, 7130 flow [2021-03-25 12:13:16,229 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 320 transitions, 7130 flow [2021-03-25 12:13:16,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 320 transitions, 7130 flow [2021-03-25 12:13:16,284 INFO L129 PetriNetUnfolder]: 281/571 cut-off events. [2021-03-25 12:13:16,285 INFO L130 PetriNetUnfolder]: For 19405/19489 co-relation queries the response was YES. [2021-03-25 12:13:16,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6786 conditions, 571 events. 281/571 cut-off events. For 19405/19489 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3129 event pairs, 8 based on Foata normal form. 9/576 useless extension candidates. Maximal degree in co-relation 6635. Up to 269 conditions per place. [2021-03-25 12:13:16,292 INFO L142 LiptonReduction]: Number of co-enabled transitions 270 [2021-03-25 12:13:16,304 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:16,304 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:16,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 12:13:16,304 INFO L480 AbstractCegarLoop]: Abstraction has has 197 places, 320 transitions, 7130 flow [2021-03-25 12:13:16,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,304 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:16,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:16,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-25 12:13:16,305 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:16,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1451025711, now seen corresponding path program 13 times [2021-03-25 12:13:16,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:16,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788349692] [2021-03-25 12:13:16,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:16,318 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:16,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:16,323 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:16,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:16,330 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:16,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:16,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:16,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:16,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:16,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:16,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:16,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:16,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:16,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:16,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:16,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:16,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:16,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:16,404 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:16,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:16,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788349692] [2021-03-25 12:13:16,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:16,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:16,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553552666] [2021-03-25 12:13:16,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:16,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:16,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:16,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:16,409 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:16,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 320 transitions, 7130 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:16,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:16,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:16,790 INFO L129 PetriNetUnfolder]: 327/646 cut-off events. [2021-03-25 12:13:16,790 INFO L130 PetriNetUnfolder]: For 23197/23247 co-relation queries the response was YES. [2021-03-25 12:13:16,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8248 conditions, 646 events. 327/646 cut-off events. For 23197/23247 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3382 event pairs, 24 based on Foata normal form. 21/666 useless extension candidates. Maximal degree in co-relation 8092. Up to 489 conditions per place. [2021-03-25 12:13:16,796 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 193 selfloop transitions, 140 changer transitions 13/354 dead transitions. [2021-03-25 12:13:16,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 354 transitions, 8877 flow [2021-03-25 12:13:16,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:13:16,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:13:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 463 transitions. [2021-03-25 12:13:16,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38106995884773665 [2021-03-25 12:13:16,809 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 463 transitions. [2021-03-25 12:13:16,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 463 transitions. [2021-03-25 12:13:16,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:16,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 463 transitions. [2021-03-25 12:13:16,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.866666666666667) internal successors, (463), 15 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,813 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 81.0) internal successors, (1296), 16 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:16,813 INFO L185 Difference]: Start difference. First operand has 197 places, 320 transitions, 7130 flow. Second operand 15 states and 463 transitions. [2021-03-25 12:13:16,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 354 transitions, 8877 flow [2021-03-25 12:13:16,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 354 transitions, 8563 flow, removed 57 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:16,899 INFO L241 Difference]: Finished difference. Result has 212 places, 336 transitions, 7779 flow [2021-03-25 12:13:16,899 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=6855, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7779, PETRI_PLACES=212, PETRI_TRANSITIONS=336} [2021-03-25 12:13:16,899 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 165 predicate places. [2021-03-25 12:13:16,899 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:16,900 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 336 transitions, 7779 flow [2021-03-25 12:13:16,900 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 336 transitions, 7779 flow [2021-03-25 12:13:16,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 336 transitions, 7779 flow [2021-03-25 12:13:16,988 INFO L129 PetriNetUnfolder]: 300/610 cut-off events. [2021-03-25 12:13:16,988 INFO L130 PetriNetUnfolder]: For 21305/21395 co-relation queries the response was YES. [2021-03-25 12:13:16,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7376 conditions, 610 events. 300/610 cut-off events. For 21305/21395 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3355 event pairs, 11 based on Foata normal form. 8/611 useless extension candidates. Maximal degree in co-relation 7220. Up to 287 conditions per place. [2021-03-25 12:13:17,001 INFO L142 LiptonReduction]: Number of co-enabled transitions 270 [2021-03-25 12:13:17,019 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:17,019 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:17,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-03-25 12:13:17,020 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 336 transitions, 7779 flow [2021-03-25 12:13:17,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:17,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:17,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-25 12:13:17,020 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:17,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:17,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2075392439, now seen corresponding path program 14 times [2021-03-25 12:13:17,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:17,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758726612] [2021-03-25 12:13:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:17,040 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:17,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:17,045 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:17,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:17,052 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:17,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:17,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:17,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:17,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,106 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:17,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:17,111 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:17,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:17,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758726612] [2021-03-25 12:13:17,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:17,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:17,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548409705] [2021-03-25 12:13:17,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:17,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:17,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:17,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:17,115 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:17,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 336 transitions, 7779 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:17,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:17,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:17,443 INFO L129 PetriNetUnfolder]: 320/642 cut-off events. [2021-03-25 12:13:17,443 INFO L130 PetriNetUnfolder]: For 23548/23578 co-relation queries the response was YES. [2021-03-25 12:13:17,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8232 conditions, 642 events. 320/642 cut-off events. For 23548/23578 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3459 event pairs, 23 based on Foata normal form. 16/657 useless extension candidates. Maximal degree in co-relation 8073. Up to 521 conditions per place. [2021-03-25 12:13:17,449 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 261 selfloop transitions, 77 changer transitions 3/349 dead transitions. [2021-03-25 12:13:17,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 349 transitions, 8674 flow [2021-03-25 12:13:17,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 290 transitions. [2021-03-25 12:13:17,450 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39780521262002744 [2021-03-25 12:13:17,450 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 290 transitions. [2021-03-25 12:13:17,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 290 transitions. [2021-03-25 12:13:17,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:17,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 290 transitions. [2021-03-25 12:13:17,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.22222222222222) internal successors, (290), 9 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,452 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,452 INFO L185 Difference]: Start difference. First operand has 210 places, 336 transitions, 7779 flow. Second operand 9 states and 290 transitions. [2021-03-25 12:13:17,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 349 transitions, 8674 flow [2021-03-25 12:13:17,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 349 transitions, 8200 flow, removed 192 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:17,561 INFO L241 Difference]: Finished difference. Result has 218 places, 342 transitions, 7679 flow [2021-03-25 12:13:17,561 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=7309, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7679, PETRI_PLACES=218, PETRI_TRANSITIONS=342} [2021-03-25 12:13:17,562 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2021-03-25 12:13:17,562 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:17,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 342 transitions, 7679 flow [2021-03-25 12:13:17,562 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 342 transitions, 7679 flow [2021-03-25 12:13:17,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 342 transitions, 7679 flow [2021-03-25 12:13:17,645 INFO L129 PetriNetUnfolder]: 283/583 cut-off events. [2021-03-25 12:13:17,645 INFO L130 PetriNetUnfolder]: For 20360/20407 co-relation queries the response was YES. [2021-03-25 12:13:17,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7050 conditions, 583 events. 283/583 cut-off events. For 20360/20407 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3182 event pairs, 7 based on Foata normal form. 15/593 useless extension candidates. Maximal degree in co-relation 6898. Up to 264 conditions per place. [2021-03-25 12:13:17,684 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 12:13:17,704 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:17,705 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:17,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-25 12:13:17,705 INFO L480 AbstractCegarLoop]: Abstraction has has 217 places, 342 transitions, 7679 flow [2021-03-25 12:13:17,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:17,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:17,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-25 12:13:17,705 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:17,706 INFO L82 PathProgramCache]: Analyzing trace with hash 738872273, now seen corresponding path program 15 times [2021-03-25 12:13:17,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:17,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52544714] [2021-03-25 12:13:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:17,725 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:17,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:17,730 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:17,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:17,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:17,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:17,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:17,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:17,783 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:13:17,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:17,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:17,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:17,800 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:17,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:17,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52544714] [2021-03-25 12:13:17,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:17,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:17,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236678608] [2021-03-25 12:13:17,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:17,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:17,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:17,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:17,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:17,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 342 transitions, 7679 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:17,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:17,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:17,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:18,154 INFO L129 PetriNetUnfolder]: 321/660 cut-off events. [2021-03-25 12:13:18,155 INFO L130 PetriNetUnfolder]: For 23024/23060 co-relation queries the response was YES. [2021-03-25 12:13:18,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8278 conditions, 660 events. 321/660 cut-off events. For 23024/23060 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3623 event pairs, 23 based on Foata normal form. 23/682 useless extension candidates. Maximal degree in co-relation 8151. Up to 524 conditions per place. [2021-03-25 12:13:18,161 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 241 selfloop transitions, 93 changer transitions 13/355 dead transitions. [2021-03-25 12:13:18,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 355 transitions, 8679 flow [2021-03-25 12:13:18,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 318 transitions. [2021-03-25 12:13:18,162 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3925925925925926 [2021-03-25 12:13:18,162 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 318 transitions. [2021-03-25 12:13:18,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 318 transitions. [2021-03-25 12:13:18,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:18,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 318 transitions. [2021-03-25 12:13:18,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.8) internal successors, (318), 10 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,164 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,164 INFO L185 Difference]: Start difference. First operand has 217 places, 342 transitions, 7679 flow. Second operand 10 states and 318 transitions. [2021-03-25 12:13:18,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 355 transitions, 8679 flow [2021-03-25 12:13:18,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 355 transitions, 8494 flow, removed 40 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:18,249 INFO L241 Difference]: Finished difference. Result has 226 places, 337 transitions, 7704 flow [2021-03-25 12:13:18,249 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=7510, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7704, PETRI_PLACES=226, PETRI_TRANSITIONS=337} [2021-03-25 12:13:18,249 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 179 predicate places. [2021-03-25 12:13:18,249 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:18,250 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 337 transitions, 7704 flow [2021-03-25 12:13:18,250 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 337 transitions, 7704 flow [2021-03-25 12:13:18,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 337 transitions, 7704 flow [2021-03-25 12:13:18,310 INFO L129 PetriNetUnfolder]: 295/621 cut-off events. [2021-03-25 12:13:18,310 INFO L130 PetriNetUnfolder]: For 21239/21271 co-relation queries the response was YES. [2021-03-25 12:13:18,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7380 conditions, 621 events. 295/621 cut-off events. For 21239/21271 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3516 event pairs, 7 based on Foata normal form. 7/625 useless extension candidates. Maximal degree in co-relation 7277. Up to 272 conditions per place. [2021-03-25 12:13:18,318 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 12:13:18,331 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:18,331 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:18,331 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 12:13:18,332 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 337 transitions, 7704 flow [2021-03-25 12:13:18,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:18,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:18,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-25 12:13:18,332 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:18,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:18,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1039154115, now seen corresponding path program 16 times [2021-03-25 12:13:18,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:18,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257817975] [2021-03-25 12:13:18,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:18,344 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:18,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:18,348 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:18,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:18,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:18,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:18,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:18,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:18,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:18,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:18,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:18,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:18,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:18,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:18,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:18,415 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:18,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:18,420 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:18,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:18,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257817975] [2021-03-25 12:13:18,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:18,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:18,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951971317] [2021-03-25 12:13:18,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:18,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:18,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:18,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:18,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:18,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 337 transitions, 7704 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:18,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:18,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:18,753 INFO L129 PetriNetUnfolder]: 317/642 cut-off events. [2021-03-25 12:13:18,754 INFO L130 PetriNetUnfolder]: For 22797/22817 co-relation queries the response was YES. [2021-03-25 12:13:18,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8163 conditions, 642 events. 317/642 cut-off events. For 22797/22817 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3511 event pairs, 25 based on Foata normal form. 10/650 useless extension candidates. Maximal degree in co-relation 8056. Up to 553 conditions per place. [2021-03-25 12:13:18,760 INFO L132 encePairwiseOnDemand]: 68/81 looper letters, 278 selfloop transitions, 52 changer transitions 5/343 dead transitions. [2021-03-25 12:13:18,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 343 transitions, 8489 flow [2021-03-25 12:13:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:18,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 334 transitions. [2021-03-25 12:13:18,761 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37485970819304154 [2021-03-25 12:13:18,761 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 334 transitions. [2021-03-25 12:13:18,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 334 transitions. [2021-03-25 12:13:18,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:18,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 334 transitions. [2021-03-25 12:13:18,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.363636363636363) internal successors, (334), 11 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,765 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 81.0) internal successors, (972), 12 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:18,765 INFO L185 Difference]: Start difference. First operand has 224 places, 337 transitions, 7704 flow. Second operand 11 states and 334 transitions. [2021-03-25 12:13:18,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 343 transitions, 8489 flow [2021-03-25 12:13:18,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 343 transitions, 8218 flow, removed 11 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:18,897 INFO L241 Difference]: Finished difference. Result has 228 places, 336 transitions, 7535 flow [2021-03-25 12:13:18,898 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=7437, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7535, PETRI_PLACES=228, PETRI_TRANSITIONS=336} [2021-03-25 12:13:18,898 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 181 predicate places. [2021-03-25 12:13:18,898 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:18,898 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 336 transitions, 7535 flow [2021-03-25 12:13:18,898 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 336 transitions, 7535 flow [2021-03-25 12:13:18,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 336 transitions, 7535 flow [2021-03-25 12:13:18,990 INFO L129 PetriNetUnfolder]: 291/611 cut-off events. [2021-03-25 12:13:18,990 INFO L130 PetriNetUnfolder]: For 19709/19739 co-relation queries the response was YES. [2021-03-25 12:13:18,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7108 conditions, 611 events. 291/611 cut-off events. For 19709/19739 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3450 event pairs, 7 based on Foata normal form. 7/615 useless extension candidates. Maximal degree in co-relation 7020. Up to 271 conditions per place. [2021-03-25 12:13:19,004 INFO L142 LiptonReduction]: Number of co-enabled transitions 284 [2021-03-25 12:13:19,023 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:19,023 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:19,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 12:13:19,023 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 336 transitions, 7535 flow [2021-03-25 12:13:19,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:19,024 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:19,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-25 12:13:19,024 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:19,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:19,024 INFO L82 PathProgramCache]: Analyzing trace with hash -860711991, now seen corresponding path program 17 times [2021-03-25 12:13:19,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:19,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479939236] [2021-03-25 12:13:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:19,061 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:19,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:19,066 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:19,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:19,073 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:19,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:19,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:19,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:19,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,126 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:19,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:19,141 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:19,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:19,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479939236] [2021-03-25 12:13:19,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:19,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:19,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400609156] [2021-03-25 12:13:19,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:19,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:19,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:19,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:19,145 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:19,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 336 transitions, 7535 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:19,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:19,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:19,469 INFO L129 PetriNetUnfolder]: 317/640 cut-off events. [2021-03-25 12:13:19,469 INFO L130 PetriNetUnfolder]: For 21155/21185 co-relation queries the response was YES. [2021-03-25 12:13:19,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 640 events. 317/640 cut-off events. For 21155/21185 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3480 event pairs, 12 based on Foata normal form. 19/659 useless extension candidates. Maximal degree in co-relation 7886. Up to 462 conditions per place. [2021-03-25 12:13:19,476 INFO L132 encePairwiseOnDemand]: 67/81 looper letters, 206 selfloop transitions, 132 changer transitions 3/349 dead transitions. [2021-03-25 12:13:19,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 349 transitions, 8414 flow [2021-03-25 12:13:19,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:19,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:19,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2021-03-25 12:13:19,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4024691358024691 [2021-03-25 12:13:19,477 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 326 transitions. [2021-03-25 12:13:19,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 326 transitions. [2021-03-25 12:13:19,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:19,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 326 transitions. [2021-03-25 12:13:19,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.6) internal successors, (326), 10 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,478 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,478 INFO L185 Difference]: Start difference. First operand has 225 places, 336 transitions, 7535 flow. Second operand 10 states and 326 transitions. [2021-03-25 12:13:19,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 349 transitions, 8414 flow [2021-03-25 12:13:19,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 349 transitions, 8221 flow, removed 10 selfloop flow, removed 13 redundant places. [2021-03-25 12:13:19,556 INFO L241 Difference]: Finished difference. Result has 224 places, 339 transitions, 7783 flow [2021-03-25 12:13:19,556 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=7346, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7783, PETRI_PLACES=224, PETRI_TRANSITIONS=339} [2021-03-25 12:13:19,557 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 177 predicate places. [2021-03-25 12:13:19,557 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:19,557 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 339 transitions, 7783 flow [2021-03-25 12:13:19,557 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 339 transitions, 7783 flow [2021-03-25 12:13:19,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 339 transitions, 7783 flow [2021-03-25 12:13:19,619 INFO L129 PetriNetUnfolder]: 282/588 cut-off events. [2021-03-25 12:13:19,619 INFO L130 PetriNetUnfolder]: For 19197/19264 co-relation queries the response was YES. [2021-03-25 12:13:19,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7055 conditions, 588 events. 282/588 cut-off events. For 19197/19264 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3320 event pairs, 5 based on Foata normal form. 12/595 useless extension candidates. Maximal degree in co-relation 6950. Up to 264 conditions per place. [2021-03-25 12:13:19,626 INFO L142 LiptonReduction]: Number of co-enabled transitions 290 [2021-03-25 12:13:19,639 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:19,639 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:19,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 12:13:19,639 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 339 transitions, 7783 flow [2021-03-25 12:13:19,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:19,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:19,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-25 12:13:19,640 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:19,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:19,640 INFO L82 PathProgramCache]: Analyzing trace with hash -622212447, now seen corresponding path program 18 times [2021-03-25 12:13:19,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:19,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277835248] [2021-03-25 12:13:19,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:19,651 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:19,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:19,655 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:19,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:19,662 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:19,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:19,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:19,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:19,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:19,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,701 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:19,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:19,705 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:19,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:19,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:19,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277835248] [2021-03-25 12:13:19,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:19,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:19,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484525518] [2021-03-25 12:13:19,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:19,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:19,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:19,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:19,709 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2021-03-25 12:13:19,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 339 transitions, 7783 flow. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:19,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2021-03-25 12:13:19,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:19,942 INFO L129 PetriNetUnfolder]: 316/642 cut-off events. [2021-03-25 12:13:19,943 INFO L130 PetriNetUnfolder]: For 20988/21008 co-relation queries the response was YES. [2021-03-25 12:13:19,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8126 conditions, 642 events. 316/642 cut-off events. For 20988/21008 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3534 event pairs, 26 based on Foata normal form. 10/650 useless extension candidates. Maximal degree in co-relation 7989. Up to 557 conditions per place. [2021-03-25 12:13:19,949 INFO L132 encePairwiseOnDemand]: 68/81 looper letters, 283 selfloop transitions, 53 changer transitions 2/346 dead transitions. [2021-03-25 12:13:19,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 346 transitions, 8586 flow [2021-03-25 12:13:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 281 transitions. [2021-03-25 12:13:19,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38545953360768176 [2021-03-25 12:13:19,950 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 281 transitions. [2021-03-25 12:13:19,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 281 transitions. [2021-03-25 12:13:19,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:19,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 281 transitions. [2021-03-25 12:13:19,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,952 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:19,952 INFO L185 Difference]: Start difference. First operand has 223 places, 339 transitions, 7783 flow. Second operand 9 states and 281 transitions. [2021-03-25 12:13:19,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 346 transitions, 8586 flow [2021-03-25 12:13:20,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 346 transitions, 8179 flow, removed 40 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:20,034 INFO L241 Difference]: Finished difference. Result has 226 places, 343 transitions, 7627 flow [2021-03-25 12:13:20,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=7382, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7627, PETRI_PLACES=226, PETRI_TRANSITIONS=343} [2021-03-25 12:13:20,035 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 179 predicate places. [2021-03-25 12:13:20,035 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:20,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 343 transitions, 7627 flow [2021-03-25 12:13:20,035 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 343 transitions, 7627 flow [2021-03-25 12:13:20,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 343 transitions, 7627 flow [2021-03-25 12:13:20,105 INFO L129 PetriNetUnfolder]: 279/600 cut-off events. [2021-03-25 12:13:20,105 INFO L130 PetriNetUnfolder]: For 18156/18246 co-relation queries the response was YES. [2021-03-25 12:13:20,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6891 conditions, 600 events. 279/600 cut-off events. For 18156/18246 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3490 event pairs, 6 based on Foata normal form. 11/608 useless extension candidates. Maximal degree in co-relation 6739. Up to 261 conditions per place. [2021-03-25 12:13:20,112 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 12:13:20,159 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:20,160 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:20,160 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 12:13:20,160 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 343 transitions, 7633 flow [2021-03-25 12:13:20,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,160 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:20,160 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:20,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-25 12:13:20,160 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:20,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1551076983, now seen corresponding path program 19 times [2021-03-25 12:13:20,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:20,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004480473] [2021-03-25 12:13:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:20,173 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:20,178 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:20,185 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:20,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:20,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:20,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:20,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:20,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:20,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:20,235 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:20,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:20,249 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:20,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:20,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004480473] [2021-03-25 12:13:20,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:20,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:20,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961293681] [2021-03-25 12:13:20,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:20,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:20,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:20,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:20,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 343 transitions, 7633 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:20,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:20,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:20,591 INFO L129 PetriNetUnfolder]: 316/650 cut-off events. [2021-03-25 12:13:20,591 INFO L130 PetriNetUnfolder]: For 19823/19853 co-relation queries the response was YES. [2021-03-25 12:13:20,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7991 conditions, 650 events. 316/650 cut-off events. For 19823/19853 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3609 event pairs, 13 based on Foata normal form. 16/665 useless extension candidates. Maximal degree in co-relation 7818. Up to 525 conditions per place. [2021-03-25 12:13:20,597 INFO L132 encePairwiseOnDemand]: 67/82 looper letters, 244 selfloop transitions, 97 changer transitions 4/353 dead transitions. [2021-03-25 12:13:20,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 353 transitions, 8465 flow [2021-03-25 12:13:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:13:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:13:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 401 transitions. [2021-03-25 12:13:20,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37617260787992496 [2021-03-25 12:13:20,598 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 401 transitions. [2021-03-25 12:13:20,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 401 transitions. [2021-03-25 12:13:20,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:20,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 401 transitions. [2021-03-25 12:13:20,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.846153846153847) internal successors, (401), 13 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,600 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 82.0) internal successors, (1148), 14 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,600 INFO L185 Difference]: Start difference. First operand has 225 places, 343 transitions, 7633 flow. Second operand 13 states and 401 transitions. [2021-03-25 12:13:20,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 353 transitions, 8465 flow [2021-03-25 12:13:20,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 353 transitions, 8316 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:20,690 INFO L241 Difference]: Finished difference. Result has 236 places, 345 transitions, 7784 flow [2021-03-25 12:13:20,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7486, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7784, PETRI_PLACES=236, PETRI_TRANSITIONS=345} [2021-03-25 12:13:20,690 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 189 predicate places. [2021-03-25 12:13:20,690 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:20,690 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 345 transitions, 7784 flow [2021-03-25 12:13:20,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 345 transitions, 7784 flow [2021-03-25 12:13:20,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 345 transitions, 7784 flow [2021-03-25 12:13:20,750 INFO L129 PetriNetUnfolder]: 281/604 cut-off events. [2021-03-25 12:13:20,750 INFO L130 PetriNetUnfolder]: For 17942/18000 co-relation queries the response was YES. [2021-03-25 12:13:20,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7050 conditions, 604 events. 281/604 cut-off events. For 17942/18000 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3526 event pairs, 7 based on Foata normal form. 9/609 useless extension candidates. Maximal degree in co-relation 6919. Up to 264 conditions per place. [2021-03-25 12:13:20,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 12:13:20,771 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:20,771 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:20,771 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-03-25 12:13:20,772 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 345 transitions, 7784 flow [2021-03-25 12:13:20,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,772 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:20,772 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:20,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-25 12:13:20,772 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:20,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1600318751, now seen corresponding path program 1 times [2021-03-25 12:13:20,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:20,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306976130] [2021-03-25 12:13:20,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:20,784 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:20,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:20,788 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:20,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:20,795 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:20,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:20,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:20,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:20,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:20,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:20,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:20,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:20,832 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:20,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:20,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306976130] [2021-03-25 12:13:20,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:20,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:20,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054278435] [2021-03-25 12:13:20,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:20,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:20,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:20,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:20,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 345 transitions, 7784 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:20,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:20,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:20,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:21,049 INFO L129 PetriNetUnfolder]: 315/651 cut-off events. [2021-03-25 12:13:21,049 INFO L130 PetriNetUnfolder]: For 20245/20275 co-relation queries the response was YES. [2021-03-25 12:13:21,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8099 conditions, 651 events. 315/651 cut-off events. For 20245/20275 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3646 event pairs, 23 based on Foata normal form. 13/662 useless extension candidates. Maximal degree in co-relation 7964. Up to 503 conditions per place. [2021-03-25 12:13:21,056 INFO L132 encePairwiseOnDemand]: 69/82 looper letters, 213 selfloop transitions, 127 changer transitions 6/354 dead transitions. [2021-03-25 12:13:21,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 354 transitions, 8759 flow [2021-03-25 12:13:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:21,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2021-03-25 12:13:21,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4094076655052265 [2021-03-25 12:13:21,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 235 transitions. [2021-03-25 12:13:21,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 235 transitions. [2021-03-25 12:13:21,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:21,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 235 transitions. [2021-03-25 12:13:21,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.57142857142857) internal successors, (235), 7 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,058 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 82.0) internal successors, (656), 8 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,058 INFO L185 Difference]: Start difference. First operand has 235 places, 345 transitions, 7784 flow. Second operand 7 states and 235 transitions. [2021-03-25 12:13:21,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 354 transitions, 8759 flow [2021-03-25 12:13:21,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 354 transitions, 8441 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:21,174 INFO L241 Difference]: Finished difference. Result has 235 places, 344 transitions, 7901 flow [2021-03-25 12:13:21,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7470, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7901, PETRI_PLACES=235, PETRI_TRANSITIONS=344} [2021-03-25 12:13:21,174 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 188 predicate places. [2021-03-25 12:13:21,174 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:21,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 344 transitions, 7901 flow [2021-03-25 12:13:21,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 344 transitions, 7901 flow [2021-03-25 12:13:21,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 344 transitions, 7901 flow [2021-03-25 12:13:21,254 INFO L129 PetriNetUnfolder]: 278/600 cut-off events. [2021-03-25 12:13:21,255 INFO L130 PetriNetUnfolder]: For 19231/19309 co-relation queries the response was YES. [2021-03-25 12:13:21,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7178 conditions, 600 events. 278/600 cut-off events. For 19231/19309 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3473 event pairs, 8 based on Foata normal form. 10/607 useless extension candidates. Maximal degree in co-relation 7044. Up to 261 conditions per place. [2021-03-25 12:13:21,265 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 12:13:21,284 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:21,284 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:21,284 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-03-25 12:13:21,292 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 344 transitions, 7901 flow [2021-03-25 12:13:21,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:21,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:21,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-25 12:13:21,292 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:21,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:21,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1689904591, now seen corresponding path program 2 times [2021-03-25 12:13:21,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:21,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369484061] [2021-03-25 12:13:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:21,307 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:21,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:21,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:21,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:21,318 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:21,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:21,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:21,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:21,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:21,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:21,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:21,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:21,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:21,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:21,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369484061] [2021-03-25 12:13:21,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:21,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:21,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548713101] [2021-03-25 12:13:21,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:21,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:21,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:21,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:21,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:21,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 344 transitions, 7901 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:21,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:21,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:21,662 INFO L129 PetriNetUnfolder]: 314/649 cut-off events. [2021-03-25 12:13:21,662 INFO L130 PetriNetUnfolder]: For 21814/21850 co-relation queries the response was YES. [2021-03-25 12:13:21,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8287 conditions, 649 events. 314/649 cut-off events. For 21814/21850 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3616 event pairs, 20 based on Foata normal form. 22/670 useless extension candidates. Maximal degree in co-relation 8154. Up to 437 conditions per place. [2021-03-25 12:13:21,671 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 138 selfloop transitions, 202 changer transitions 7/355 dead transitions. [2021-03-25 12:13:21,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 355 transitions, 8927 flow [2021-03-25 12:13:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:21,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 270 transitions. [2021-03-25 12:13:21,674 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4115853658536585 [2021-03-25 12:13:21,674 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 270 transitions. [2021-03-25 12:13:21,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 270 transitions. [2021-03-25 12:13:21,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:21,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 270 transitions. [2021-03-25 12:13:21,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.75) internal successors, (270), 8 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,676 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,676 INFO L185 Difference]: Start difference. First operand has 235 places, 344 transitions, 7901 flow. Second operand 8 states and 270 transitions. [2021-03-25 12:13:21,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 355 transitions, 8927 flow [2021-03-25 12:13:21,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 355 transitions, 8499 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:21,807 INFO L241 Difference]: Finished difference. Result has 236 places, 341 transitions, 8028 flow [2021-03-25 12:13:21,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7477, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8028, PETRI_PLACES=236, PETRI_TRANSITIONS=341} [2021-03-25 12:13:21,808 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 189 predicate places. [2021-03-25 12:13:21,808 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:21,808 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 341 transitions, 8028 flow [2021-03-25 12:13:21,808 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 341 transitions, 8028 flow [2021-03-25 12:13:21,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 341 transitions, 8028 flow [2021-03-25 12:13:21,892 INFO L129 PetriNetUnfolder]: 284/608 cut-off events. [2021-03-25 12:13:21,892 INFO L130 PetriNetUnfolder]: For 20537/20560 co-relation queries the response was YES. [2021-03-25 12:13:21,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7433 conditions, 608 events. 284/608 cut-off events. For 20537/20560 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3499 event pairs, 11 based on Foata normal form. 5/611 useless extension candidates. Maximal degree in co-relation 7331. Up to 264 conditions per place. [2021-03-25 12:13:21,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 12:13:21,922 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:21,922 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:21,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 12:13:21,923 INFO L480 AbstractCegarLoop]: Abstraction has has 234 places, 341 transitions, 8028 flow [2021-03-25 12:13:21,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:21,923 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:21,923 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:21,923 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-25 12:13:21,923 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:21,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1610608921, now seen corresponding path program 20 times [2021-03-25 12:13:21,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:21,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299888740] [2021-03-25 12:13:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:21,934 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:21,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:21,938 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:21,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:21,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:21,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:21,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:21,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:21,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:21,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:21,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:21,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:22,003 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:22,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:22,009 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:22,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:22,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:22,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299888740] [2021-03-25 12:13:22,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:22,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:22,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718855632] [2021-03-25 12:13:22,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:22,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:22,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:22,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:22,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:22,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 341 transitions, 8028 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:22,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:22,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:22,313 INFO L129 PetriNetUnfolder]: 313/640 cut-off events. [2021-03-25 12:13:22,313 INFO L130 PetriNetUnfolder]: For 22541/22561 co-relation queries the response was YES. [2021-03-25 12:13:22,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8331 conditions, 640 events. 313/640 cut-off events. For 22541/22561 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3514 event pairs, 26 based on Foata normal form. 10/648 useless extension candidates. Maximal degree in co-relation 8227. Up to 552 conditions per place. [2021-03-25 12:13:22,320 INFO L132 encePairwiseOnDemand]: 69/82 looper letters, 280 selfloop transitions, 55 changer transitions 2/345 dead transitions. [2021-03-25 12:13:22,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 345 transitions, 8782 flow [2021-03-25 12:13:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:22,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 334 transitions. [2021-03-25 12:13:22,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37028824833702884 [2021-03-25 12:13:22,321 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 334 transitions. [2021-03-25 12:13:22,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 334 transitions. [2021-03-25 12:13:22,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:22,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 334 transitions. [2021-03-25 12:13:22,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.363636363636363) internal successors, (334), 11 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,322 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,322 INFO L185 Difference]: Start difference. First operand has 234 places, 341 transitions, 8028 flow. Second operand 11 states and 334 transitions. [2021-03-25 12:13:22,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 345 transitions, 8782 flow [2021-03-25 12:13:22,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 345 transitions, 8129 flow, removed 11 selfloop flow, removed 14 redundant places. [2021-03-25 12:13:22,406 INFO L241 Difference]: Finished difference. Result has 233 places, 342 transitions, 7542 flow [2021-03-25 12:13:22,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7377, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7542, PETRI_PLACES=233, PETRI_TRANSITIONS=342} [2021-03-25 12:13:22,407 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 186 predicate places. [2021-03-25 12:13:22,407 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:22,407 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 342 transitions, 7542 flow [2021-03-25 12:13:22,407 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 342 transitions, 7542 flow [2021-03-25 12:13:22,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 342 transitions, 7542 flow [2021-03-25 12:13:22,465 INFO L129 PetriNetUnfolder]: 285/609 cut-off events. [2021-03-25 12:13:22,466 INFO L130 PetriNetUnfolder]: For 18283/18323 co-relation queries the response was YES. [2021-03-25 12:13:22,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7013 conditions, 609 events. 285/609 cut-off events. For 18283/18323 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3473 event pairs, 5 based on Foata normal form. 11/619 useless extension candidates. Maximal degree in co-relation 6885. Up to 266 conditions per place. [2021-03-25 12:13:22,477 INFO L142 LiptonReduction]: Number of co-enabled transitions 294 [2021-03-25 12:13:22,496 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:22,496 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:22,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 12:13:22,497 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 342 transitions, 7542 flow [2021-03-25 12:13:22,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,497 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:22,497 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:22,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-25 12:13:22,497 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:22,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:22,498 INFO L82 PathProgramCache]: Analyzing trace with hash -514216607, now seen corresponding path program 21 times [2021-03-25 12:13:22,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:22,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272025272] [2021-03-25 12:13:22,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:22,508 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:22,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:22,512 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:22,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:22,519 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:22,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:22,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:22,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:22,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:22,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:22,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:22,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:22,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:22,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:22,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:22,567 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:22,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:22,581 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:22,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:22,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272025272] [2021-03-25 12:13:22,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:22,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:22,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999943569] [2021-03-25 12:13:22,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:22,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:22,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:22,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:22,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:22,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 342 transitions, 7542 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:22,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:22,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:22,915 INFO L129 PetriNetUnfolder]: 314/648 cut-off events. [2021-03-25 12:13:22,915 INFO L130 PetriNetUnfolder]: For 20052/20089 co-relation queries the response was YES. [2021-03-25 12:13:22,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7932 conditions, 648 events. 314/648 cut-off events. For 20052/20089 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3605 event pairs, 20 based on Foata normal form. 21/669 useless extension candidates. Maximal degree in co-relation 7800. Up to 498 conditions per place. [2021-03-25 12:13:22,921 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 230 selfloop transitions, 107 changer transitions 10/355 dead transitions. [2021-03-25 12:13:22,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 355 transitions, 8416 flow [2021-03-25 12:13:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:13:22,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:13:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 374 transitions. [2021-03-25 12:13:22,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3800813008130081 [2021-03-25 12:13:22,922 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 374 transitions. [2021-03-25 12:13:22,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 374 transitions. [2021-03-25 12:13:22,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:22,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 374 transitions. [2021-03-25 12:13:22,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.166666666666668) internal successors, (374), 12 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,925 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:22,925 INFO L185 Difference]: Start difference. First operand has 232 places, 342 transitions, 7542 flow. Second operand 12 states and 374 transitions. [2021-03-25 12:13:22,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 355 transitions, 8416 flow [2021-03-25 12:13:23,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 355 transitions, 8341 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:23,007 INFO L241 Difference]: Finished difference. Result has 241 places, 340 transitions, 7666 flow [2021-03-25 12:13:23,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7469, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7666, PETRI_PLACES=241, PETRI_TRANSITIONS=340} [2021-03-25 12:13:23,007 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 194 predicate places. [2021-03-25 12:13:23,007 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:23,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 340 transitions, 7666 flow [2021-03-25 12:13:23,008 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 340 transitions, 7666 flow [2021-03-25 12:13:23,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 340 transitions, 7666 flow [2021-03-25 12:13:23,063 INFO L129 PetriNetUnfolder]: 276/579 cut-off events. [2021-03-25 12:13:23,063 INFO L130 PetriNetUnfolder]: For 18548/18644 co-relation queries the response was YES. [2021-03-25 12:13:23,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6876 conditions, 579 events. 276/579 cut-off events. For 18548/18644 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3214 event pairs, 6 based on Foata normal form. 12/585 useless extension candidates. Maximal degree in co-relation 6784. Up to 261 conditions per place. [2021-03-25 12:13:23,070 INFO L142 LiptonReduction]: Number of co-enabled transitions 290 [2021-03-25 12:13:23,083 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:23,083 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:23,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 12:13:23,083 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 340 transitions, 7666 flow [2021-03-25 12:13:23,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:23,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:23,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-25 12:13:23,084 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:23,084 INFO L82 PathProgramCache]: Analyzing trace with hash -2122531789, now seen corresponding path program 22 times [2021-03-25 12:13:23,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:23,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999964774] [2021-03-25 12:13:23,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:23,094 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:23,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:23,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:23,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:23,105 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:23,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:23,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:23,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:23,160 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:23,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:23,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999964774] [2021-03-25 12:13:23,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:23,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:23,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160302157] [2021-03-25 12:13:23,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:23,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:23,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:23,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:23,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:23,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 340 transitions, 7666 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:23,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:23,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:23,498 INFO L129 PetriNetUnfolder]: 310/639 cut-off events. [2021-03-25 12:13:23,498 INFO L130 PetriNetUnfolder]: For 20343/20373 co-relation queries the response was YES. [2021-03-25 12:13:23,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7949 conditions, 639 events. 310/639 cut-off events. For 20343/20373 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3581 event pairs, 21 based on Foata normal form. 16/654 useless extension candidates. Maximal degree in co-relation 7855. Up to 520 conditions per place. [2021-03-25 12:13:23,505 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 245 selfloop transitions, 89 changer transitions 6/348 dead transitions. [2021-03-25 12:13:23,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 348 transitions, 8464 flow [2021-03-25 12:13:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:23,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:13:23,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37915742793791574 [2021-03-25 12:13:23,506 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:13:23,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:13:23,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:23,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:13:23,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,507 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,508 INFO L185 Difference]: Start difference. First operand has 237 places, 340 transitions, 7666 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:13:23,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 348 transitions, 8464 flow [2021-03-25 12:13:23,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 348 transitions, 8226 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:23,589 INFO L241 Difference]: Finished difference. Result has 239 places, 338 transitions, 7594 flow [2021-03-25 12:13:23,589 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7436, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7594, PETRI_PLACES=239, PETRI_TRANSITIONS=338} [2021-03-25 12:13:23,589 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 192 predicate places. [2021-03-25 12:13:23,589 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:23,589 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 338 transitions, 7594 flow [2021-03-25 12:13:23,589 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 338 transitions, 7594 flow [2021-03-25 12:13:23,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 338 transitions, 7594 flow [2021-03-25 12:13:23,649 INFO L129 PetriNetUnfolder]: 289/609 cut-off events. [2021-03-25 12:13:23,649 INFO L130 PetriNetUnfolder]: For 18804/18847 co-relation queries the response was YES. [2021-03-25 12:13:23,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7050 conditions, 609 events. 289/609 cut-off events. For 18804/18847 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3469 event pairs, 7 based on Foata normal form. 8/613 useless extension candidates. Maximal degree in co-relation 6959. Up to 270 conditions per place. [2021-03-25 12:13:23,657 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 12:13:23,671 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:23,671 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:23,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 12:13:23,671 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 338 transitions, 7594 flow [2021-03-25 12:13:23,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,672 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:23,672 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:23,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-25 12:13:23,672 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:23,672 INFO L82 PathProgramCache]: Analyzing trace with hash -205595333, now seen corresponding path program 23 times [2021-03-25 12:13:23,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:23,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383785191] [2021-03-25 12:13:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:23,683 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:23,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:23,688 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:23,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:23,694 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:23,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:23,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:23,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:23,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:23,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,742 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:23,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:23,748 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:23,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:23,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383785191] [2021-03-25 12:13:23,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:23,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:23,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183934654] [2021-03-25 12:13:23,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:23,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:23,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:23,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:23,752 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:23,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 338 transitions, 7594 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:23,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:23,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:23,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:24,020 INFO L129 PetriNetUnfolder]: 309/635 cut-off events. [2021-03-25 12:13:24,020 INFO L130 PetriNetUnfolder]: For 20198/20228 co-relation queries the response was YES. [2021-03-25 12:13:24,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7876 conditions, 635 events. 309/635 cut-off events. For 20198/20228 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3522 event pairs, 16 based on Foata normal form. 19/654 useless extension candidates. Maximal degree in co-relation 7783. Up to 521 conditions per place. [2021-03-25 12:13:24,026 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 282 selfloop transitions, 56 changer transitions 2/348 dead transitions. [2021-03-25 12:13:24,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 348 transitions, 8405 flow [2021-03-25 12:13:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:24,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 12:13:24,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3956639566395664 [2021-03-25 12:13:24,027 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 12:13:24,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 12:13:24,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:24,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 12:13:24,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,029 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,029 INFO L185 Difference]: Start difference. First operand has 236 places, 338 transitions, 7594 flow. Second operand 9 states and 292 transitions. [2021-03-25 12:13:24,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 348 transitions, 8405 flow [2021-03-25 12:13:24,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 348 transitions, 8233 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:24,148 INFO L241 Difference]: Finished difference. Result has 240 places, 340 transitions, 7626 flow [2021-03-25 12:13:24,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7422, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7626, PETRI_PLACES=240, PETRI_TRANSITIONS=340} [2021-03-25 12:13:24,149 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 193 predicate places. [2021-03-25 12:13:24,149 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:24,149 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 340 transitions, 7626 flow [2021-03-25 12:13:24,149 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 340 transitions, 7626 flow [2021-03-25 12:13:24,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 340 transitions, 7626 flow [2021-03-25 12:13:24,231 INFO L129 PetriNetUnfolder]: 275/581 cut-off events. [2021-03-25 12:13:24,231 INFO L130 PetriNetUnfolder]: For 18721/18778 co-relation queries the response was YES. [2021-03-25 12:13:24,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6879 conditions, 581 events. 275/581 cut-off events. For 18721/18778 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3263 event pairs, 9 based on Foata normal form. 10/587 useless extension candidates. Maximal degree in co-relation 6740. Up to 261 conditions per place. [2021-03-25 12:13:24,243 INFO L142 LiptonReduction]: Number of co-enabled transitions 294 [2021-03-25 12:13:24,261 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:24,262 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:24,262 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 12:13:24,262 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 340 transitions, 7626 flow [2021-03-25 12:13:24,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:24,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:24,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-25 12:13:24,262 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:24,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:24,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1065064509, now seen corresponding path program 24 times [2021-03-25 12:13:24,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:24,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681215777] [2021-03-25 12:13:24,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:24,277 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:24,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:24,281 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:24,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:24,288 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:24,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:24,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:24,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:24,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,336 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:24,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:24,351 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:24,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:24,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681215777] [2021-03-25 12:13:24,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:24,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:24,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664639027] [2021-03-25 12:13:24,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:24,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:24,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:24,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:24,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:24,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 340 transitions, 7626 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:24,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:24,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:24,688 INFO L129 PetriNetUnfolder]: 309/635 cut-off events. [2021-03-25 12:13:24,689 INFO L130 PetriNetUnfolder]: For 20629/20665 co-relation queries the response was YES. [2021-03-25 12:13:24,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7937 conditions, 635 events. 309/635 cut-off events. For 20629/20665 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3508 event pairs, 18 based on Foata normal form. 21/656 useless extension candidates. Maximal degree in co-relation 7803. Up to 521 conditions per place. [2021-03-25 12:13:24,695 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 280 selfloop transitions, 53 changer transitions 9/350 dead transitions. [2021-03-25 12:13:24,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 350 transitions, 8424 flow [2021-03-25 12:13:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:13:24,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38470066518847007 [2021-03-25 12:13:24,696 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:13:24,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:13:24,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:24,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:13:24,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,698 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,698 INFO L185 Difference]: Start difference. First operand has 239 places, 340 transitions, 7626 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:13:24,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 350 transitions, 8424 flow [2021-03-25 12:13:24,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 350 transitions, 8245 flow, removed 20 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:24,786 INFO L241 Difference]: Finished difference. Result has 243 places, 335 transitions, 7512 flow [2021-03-25 12:13:24,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7455, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7512, PETRI_PLACES=243, PETRI_TRANSITIONS=335} [2021-03-25 12:13:24,787 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 196 predicate places. [2021-03-25 12:13:24,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:24,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 335 transitions, 7512 flow [2021-03-25 12:13:24,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 335 transitions, 7512 flow [2021-03-25 12:13:24,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 238 places, 335 transitions, 7512 flow [2021-03-25 12:13:24,846 INFO L129 PetriNetUnfolder]: 274/577 cut-off events. [2021-03-25 12:13:24,846 INFO L130 PetriNetUnfolder]: For 18751/18819 co-relation queries the response was YES. [2021-03-25 12:13:24,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6861 conditions, 577 events. 274/577 cut-off events. For 18751/18819 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3216 event pairs, 7 based on Foata normal form. 13/584 useless extension candidates. Maximal degree in co-relation 6769. Up to 264 conditions per place. [2021-03-25 12:13:24,853 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-25 12:13:24,866 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:24,866 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:24,866 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 12:13:24,866 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 335 transitions, 7512 flow [2021-03-25 12:13:24,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,866 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:24,866 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:24,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-25 12:13:24,866 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:24,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:24,867 INFO L82 PathProgramCache]: Analyzing trace with hash -895960325, now seen corresponding path program 25 times [2021-03-25 12:13:24,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:24,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754968367] [2021-03-25 12:13:24,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:24,886 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:24,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:24,891 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:24,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:24,898 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:24,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:24,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:24,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:24,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:24,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:24,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:24,953 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:24,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:24,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:24,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754968367] [2021-03-25 12:13:24,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:24,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:24,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817636815] [2021-03-25 12:13:24,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:24,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:24,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:24,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:24,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:24,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 335 transitions, 7512 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:24,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:24,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:24,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:25,226 INFO L129 PetriNetUnfolder]: 306/628 cut-off events. [2021-03-25 12:13:25,227 INFO L130 PetriNetUnfolder]: For 20544/20579 co-relation queries the response was YES. [2021-03-25 12:13:25,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7860 conditions, 628 events. 306/628 cut-off events. For 20544/20579 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3469 event pairs, 27 based on Foata normal form. 18/645 useless extension candidates. Maximal degree in co-relation 7766. Up to 554 conditions per place. [2021-03-25 12:13:25,233 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 298 selfloop transitions, 34 changer transitions 2/342 dead transitions. [2021-03-25 12:13:25,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 342 transitions, 8275 flow [2021-03-25 12:13:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 279 transitions. [2021-03-25 12:13:25,234 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3780487804878049 [2021-03-25 12:13:25,234 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 279 transitions. [2021-03-25 12:13:25,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 279 transitions. [2021-03-25 12:13:25,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:25,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 279 transitions. [2021-03-25 12:13:25,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.0) internal successors, (279), 9 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,235 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,235 INFO L185 Difference]: Start difference. First operand has 238 places, 335 transitions, 7512 flow. Second operand 9 states and 279 transitions. [2021-03-25 12:13:25,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 342 transitions, 8275 flow [2021-03-25 12:13:25,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 342 transitions, 8155 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:25,314 INFO L241 Difference]: Finished difference. Result has 241 places, 337 transitions, 7529 flow [2021-03-25 12:13:25,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7398, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7529, PETRI_PLACES=241, PETRI_TRANSITIONS=337} [2021-03-25 12:13:25,314 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 194 predicate places. [2021-03-25 12:13:25,314 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:25,315 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 337 transitions, 7529 flow [2021-03-25 12:13:25,315 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 337 transitions, 7529 flow [2021-03-25 12:13:25,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 337 transitions, 7529 flow [2021-03-25 12:13:25,374 INFO L129 PetriNetUnfolder]: 286/604 cut-off events. [2021-03-25 12:13:25,374 INFO L130 PetriNetUnfolder]: For 19222/19273 co-relation queries the response was YES. [2021-03-25 12:13:25,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7035 conditions, 604 events. 286/604 cut-off events. For 19222/19273 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3416 event pairs, 10 based on Foata normal form. 6/606 useless extension candidates. Maximal degree in co-relation 6894. Up to 270 conditions per place. [2021-03-25 12:13:25,382 INFO L142 LiptonReduction]: Number of co-enabled transitions 284 [2021-03-25 12:13:25,395 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:25,395 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:25,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-03-25 12:13:25,395 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 337 transitions, 7529 flow [2021-03-25 12:13:25,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:25,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:25,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-25 12:13:25,396 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:25,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:25,396 INFO L82 PathProgramCache]: Analyzing trace with hash 420196979, now seen corresponding path program 26 times [2021-03-25 12:13:25,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:25,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887808700] [2021-03-25 12:13:25,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:25,409 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:25,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:25,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:25,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:25,421 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:25,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:25,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:25,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:25,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:25,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:25,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:25,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:25,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:25,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:25,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:25,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:25,471 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:25,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:25,476 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:25,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:25,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887808700] [2021-03-25 12:13:25,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:25,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:25,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239036203] [2021-03-25 12:13:25,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:25,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:25,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:25,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:25,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:25,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 337 transitions, 7529 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:25,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:25,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:25,791 INFO L129 PetriNetUnfolder]: 305/632 cut-off events. [2021-03-25 12:13:25,791 INFO L130 PetriNetUnfolder]: For 20871/20901 co-relation queries the response was YES. [2021-03-25 12:13:25,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7857 conditions, 632 events. 305/632 cut-off events. For 20871/20901 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3523 event pairs, 25 based on Foata normal form. 13/643 useless extension candidates. Maximal degree in co-relation 7721. Up to 552 conditions per place. [2021-03-25 12:13:25,798 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 297 selfloop transitions, 31 changer transitions 7/343 dead transitions. [2021-03-25 12:13:25,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 343 transitions, 8282 flow [2021-03-25 12:13:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 12:13:25,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37317073170731707 [2021-03-25 12:13:25,799 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 12:13:25,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 12:13:25,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:25,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 12:13:25,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,800 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,800 INFO L185 Difference]: Start difference. First operand has 240 places, 337 transitions, 7529 flow. Second operand 10 states and 306 transitions. [2021-03-25 12:13:25,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 343 transitions, 8282 flow [2021-03-25 12:13:25,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 343 transitions, 8216 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:25,885 INFO L241 Difference]: Finished difference. Result has 247 places, 333 transitions, 7449 flow [2021-03-25 12:13:25,885 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7465, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7449, PETRI_PLACES=247, PETRI_TRANSITIONS=333} [2021-03-25 12:13:25,885 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 200 predicate places. [2021-03-25 12:13:25,885 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:25,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 333 transitions, 7449 flow [2021-03-25 12:13:25,885 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 333 transitions, 7449 flow [2021-03-25 12:13:25,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 333 transitions, 7449 flow [2021-03-25 12:13:25,942 INFO L129 PetriNetUnfolder]: 270/567 cut-off events. [2021-03-25 12:13:25,942 INFO L130 PetriNetUnfolder]: For 18489/18542 co-relation queries the response was YES. [2021-03-25 12:13:25,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6737 conditions, 567 events. 270/567 cut-off events. For 18489/18542 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3145 event pairs, 11 based on Foata normal form. 10/572 useless extension candidates. Maximal degree in co-relation 6642. Up to 260 conditions per place. [2021-03-25 12:13:25,949 INFO L142 LiptonReduction]: Number of co-enabled transitions 272 [2021-03-25 12:13:25,961 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:25,962 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:25,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 12:13:25,962 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 333 transitions, 7449 flow [2021-03-25 12:13:25,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:25,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:25,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:25,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-25 12:13:25,962 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:25,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1515420517, now seen corresponding path program 27 times [2021-03-25 12:13:25,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:25,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156101496] [2021-03-25 12:13:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:25,976 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:25,980 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:25,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:25,987 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:25,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:25,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:25,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:25,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:26,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:26,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,037 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:26,051 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:26,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:26,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156101496] [2021-03-25 12:13:26,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:26,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:26,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677777078] [2021-03-25 12:13:26,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:26,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:26,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:26,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:26,055 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:26,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 333 transitions, 7449 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:26,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:26,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:26,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:26,416 INFO L129 PetriNetUnfolder]: 303/622 cut-off events. [2021-03-25 12:13:26,416 INFO L130 PetriNetUnfolder]: For 20656/20686 co-relation queries the response was YES. [2021-03-25 12:13:26,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7753 conditions, 622 events. 303/622 cut-off events. For 20656/20686 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3410 event pairs, 24 based on Foata normal form. 16/637 useless extension candidates. Maximal degree in co-relation 7656. Up to 532 conditions per place. [2021-03-25 12:13:26,425 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 285 selfloop transitions, 41 changer transitions 5/339 dead transitions. [2021-03-25 12:13:26,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 339 transitions, 8141 flow [2021-03-25 12:13:26,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:26,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:13:26,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3804878048780488 [2021-03-25 12:13:26,426 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:13:26,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:13:26,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:26,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:13:26,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:26,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:26,428 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:26,428 INFO L185 Difference]: Start difference. First operand has 242 places, 333 transitions, 7449 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:13:26,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 339 transitions, 8141 flow [2021-03-25 12:13:26,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 339 transitions, 8066 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:26,567 INFO L241 Difference]: Finished difference. Result has 244 places, 329 transitions, 7376 flow [2021-03-25 12:13:26,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7374, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7376, PETRI_PLACES=244, PETRI_TRANSITIONS=329} [2021-03-25 12:13:26,568 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 197 predicate places. [2021-03-25 12:13:26,568 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:26,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 329 transitions, 7376 flow [2021-03-25 12:13:26,568 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 329 transitions, 7376 flow [2021-03-25 12:13:26,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 329 transitions, 7376 flow [2021-03-25 12:13:26,639 INFO L129 PetriNetUnfolder]: 265/561 cut-off events. [2021-03-25 12:13:26,639 INFO L130 PetriNetUnfolder]: For 18225/18304 co-relation queries the response was YES. [2021-03-25 12:13:26,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6654 conditions, 561 events. 265/561 cut-off events. For 18225/18304 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3112 event pairs, 7 based on Foata normal form. 12/570 useless extension candidates. Maximal degree in co-relation 6562. Up to 256 conditions per place. [2021-03-25 12:13:26,646 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 12:13:26,663 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:26,664 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:26,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-25 12:13:26,664 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 329 transitions, 7376 flow [2021-03-25 12:13:26,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:26,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:26,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:26,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-25 12:13:26,664 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:26,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:26,665 INFO L82 PathProgramCache]: Analyzing trace with hash 825055525, now seen corresponding path program 28 times [2021-03-25 12:13:26,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:26,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118799669] [2021-03-25 12:13:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:26,676 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:26,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:26,681 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:26,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:26,688 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:26,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:26,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:26,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,732 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:26,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:26,745 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:26,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:26,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118799669] [2021-03-25 12:13:26,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:26,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:26,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401678568] [2021-03-25 12:13:26,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:26,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:26,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:26,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:26,748 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:26,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 329 transitions, 7376 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:26,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:26,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:26,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:26,995 INFO L129 PetriNetUnfolder]: 301/623 cut-off events. [2021-03-25 12:13:26,996 INFO L130 PetriNetUnfolder]: For 20048/20068 co-relation queries the response was YES. [2021-03-25 12:13:27,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7718 conditions, 623 events. 301/623 cut-off events. For 20048/20068 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3438 event pairs, 25 based on Foata normal form. 13/635 useless extension candidates. Maximal degree in co-relation 7624. Up to 541 conditions per place. [2021-03-25 12:13:27,003 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 292 selfloop transitions, 29 changer transitions 7/336 dead transitions. [2021-03-25 12:13:27,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 336 transitions, 8111 flow [2021-03-25 12:13:27,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 331 transitions. [2021-03-25 12:13:27,004 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3669623059866962 [2021-03-25 12:13:27,004 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 331 transitions. [2021-03-25 12:13:27,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 331 transitions. [2021-03-25 12:13:27,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:27,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 331 transitions. [2021-03-25 12:13:27,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.09090909090909) internal successors, (331), 11 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,005 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,005 INFO L185 Difference]: Start difference. First operand has 241 places, 329 transitions, 7376 flow. Second operand 11 states and 331 transitions. [2021-03-25 12:13:27,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 336 transitions, 8111 flow [2021-03-25 12:13:27,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 336 transitions, 8014 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:27,088 INFO L241 Difference]: Finished difference. Result has 246 places, 326 transitions, 7273 flow [2021-03-25 12:13:27,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7279, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7273, PETRI_PLACES=246, PETRI_TRANSITIONS=326} [2021-03-25 12:13:27,089 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 199 predicate places. [2021-03-25 12:13:27,089 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:27,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 326 transitions, 7273 flow [2021-03-25 12:13:27,089 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 326 transitions, 7273 flow [2021-03-25 12:13:27,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 326 transitions, 7273 flow [2021-03-25 12:13:27,148 INFO L129 PetriNetUnfolder]: 273/583 cut-off events. [2021-03-25 12:13:27,148 INFO L130 PetriNetUnfolder]: For 18580/18604 co-relation queries the response was YES. [2021-03-25 12:13:27,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6848 conditions, 583 events. 273/583 cut-off events. For 18580/18604 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3285 event pairs, 6 based on Foata normal form. 7/588 useless extension candidates. Maximal degree in co-relation 6754. Up to 260 conditions per place. [2021-03-25 12:13:27,155 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 12:13:27,168 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:27,168 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:27,168 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-25 12:13:27,168 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 326 transitions, 7273 flow [2021-03-25 12:13:27,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:27,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:27,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-25 12:13:27,168 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:27,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1127064997, now seen corresponding path program 29 times [2021-03-25 12:13:27,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:27,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913538840] [2021-03-25 12:13:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:27,180 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:27,185 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:27,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:27,191 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:27,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:27,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:27,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:27,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,237 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:27,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:27,253 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:27,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:27,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913538840] [2021-03-25 12:13:27,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:27,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:27,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601760429] [2021-03-25 12:13:27,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:27,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:27,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:27,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:27,256 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:27,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 326 transitions, 7273 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:27,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:27,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:27,525 INFO L129 PetriNetUnfolder]: 299/615 cut-off events. [2021-03-25 12:13:27,525 INFO L130 PetriNetUnfolder]: For 19959/19989 co-relation queries the response was YES. [2021-03-25 12:13:27,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7633 conditions, 615 events. 299/615 cut-off events. For 19959/19989 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3374 event pairs, 21 based on Foata normal form. 16/630 useless extension candidates. Maximal degree in co-relation 7537. Up to 501 conditions per place. [2021-03-25 12:13:27,532 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 238 selfloop transitions, 80 changer transitions 6/332 dead transitions. [2021-03-25 12:13:27,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 332 transitions, 7983 flow [2021-03-25 12:13:27,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:27,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:13:27,533 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38170731707317074 [2021-03-25 12:13:27,533 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:13:27,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:13:27,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:27,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:13:27,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,534 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,534 INFO L185 Difference]: Start difference. First operand has 241 places, 326 transitions, 7273 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:13:27,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 332 transitions, 7983 flow [2021-03-25 12:13:27,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 332 transitions, 7865 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:27,617 INFO L241 Difference]: Finished difference. Result has 242 places, 322 transitions, 7238 flow [2021-03-25 12:13:27,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7157, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7238, PETRI_PLACES=242, PETRI_TRANSITIONS=322} [2021-03-25 12:13:27,617 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 195 predicate places. [2021-03-25 12:13:27,618 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:27,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 322 transitions, 7238 flow [2021-03-25 12:13:27,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 322 transitions, 7238 flow [2021-03-25 12:13:27,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 238 places, 322 transitions, 7238 flow [2021-03-25 12:13:27,692 INFO L129 PetriNetUnfolder]: 262/551 cut-off events. [2021-03-25 12:13:27,692 INFO L130 PetriNetUnfolder]: For 18071/18144 co-relation queries the response was YES. [2021-03-25 12:13:27,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6604 conditions, 551 events. 262/551 cut-off events. For 18071/18144 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3041 event pairs, 9 based on Foata normal form. 10/552 useless extension candidates. Maximal degree in co-relation 6513. Up to 254 conditions per place. [2021-03-25 12:13:27,700 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-25 12:13:27,711 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:27,711 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:27,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 12:13:27,712 INFO L480 AbstractCegarLoop]: Abstraction has has 238 places, 322 transitions, 7238 flow [2021-03-25 12:13:27,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,712 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:27,712 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:27,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-25 12:13:27,712 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:27,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:27,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1420275781, now seen corresponding path program 30 times [2021-03-25 12:13:27,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:27,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606846438] [2021-03-25 12:13:27,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:27,723 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:27,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:27,727 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:27,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:27,734 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:27,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:27,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:27,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:27,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:27,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,783 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:27,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:27,797 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:27,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:27,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606846438] [2021-03-25 12:13:27,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:27,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:27,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726939941] [2021-03-25 12:13:27,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:27,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:27,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:27,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:27,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:27,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 322 transitions, 7238 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:27,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:27,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:27,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:28,105 INFO L129 PetriNetUnfolder]: 298/609 cut-off events. [2021-03-25 12:13:28,105 INFO L130 PetriNetUnfolder]: For 20204/20234 co-relation queries the response was YES. [2021-03-25 12:13:28,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7622 conditions, 609 events. 298/609 cut-off events. For 20204/20234 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3306 event pairs, 10 based on Foata normal form. 19/628 useless extension candidates. Maximal degree in co-relation 7529. Up to 439 conditions per place. [2021-03-25 12:13:28,114 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 210 selfloop transitions, 113 changer transitions 2/333 dead transitions. [2021-03-25 12:13:28,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 333 transitions, 8059 flow [2021-03-25 12:13:28,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2021-03-25 12:13:28,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39878048780487807 [2021-03-25 12:13:28,132 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 327 transitions. [2021-03-25 12:13:28,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 327 transitions. [2021-03-25 12:13:28,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:28,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 327 transitions. [2021-03-25 12:13:28,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,134 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,134 INFO L185 Difference]: Start difference. First operand has 238 places, 322 transitions, 7238 flow. Second operand 10 states and 327 transitions. [2021-03-25 12:13:28,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 333 transitions, 8059 flow [2021-03-25 12:13:28,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 333 transitions, 7893 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:28,223 INFO L241 Difference]: Finished difference. Result has 242 places, 324 transitions, 7434 flow [2021-03-25 12:13:28,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7072, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7434, PETRI_PLACES=242, PETRI_TRANSITIONS=324} [2021-03-25 12:13:28,224 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 195 predicate places. [2021-03-25 12:13:28,224 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:28,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 324 transitions, 7434 flow [2021-03-25 12:13:28,224 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 324 transitions, 7434 flow [2021-03-25 12:13:28,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 324 transitions, 7434 flow [2021-03-25 12:13:28,280 INFO L129 PetriNetUnfolder]: 264/559 cut-off events. [2021-03-25 12:13:28,280 INFO L130 PetriNetUnfolder]: For 19401/19447 co-relation queries the response was YES. [2021-03-25 12:13:28,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6764 conditions, 559 events. 264/559 cut-off events. For 19401/19447 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3114 event pairs, 10 based on Foata normal form. 10/566 useless extension candidates. Maximal degree in co-relation 6636. Up to 254 conditions per place. [2021-03-25 12:13:28,288 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 12:13:28,300 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:28,301 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:28,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 12:13:28,301 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 324 transitions, 7434 flow [2021-03-25 12:13:28,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,301 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:28,301 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:28,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-25 12:13:28,301 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:28,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:28,302 INFO L82 PathProgramCache]: Analyzing trace with hash 813831713, now seen corresponding path program 31 times [2021-03-25 12:13:28,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:28,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634910744] [2021-03-25 12:13:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:28,313 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:28,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:28,318 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:28,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:28,325 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:28,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:28,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:28,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:28,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:28,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:28,389 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:28,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:28,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634910744] [2021-03-25 12:13:28,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:28,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:28,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777955128] [2021-03-25 12:13:28,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:28,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:28,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:28,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:28,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:28,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 324 transitions, 7434 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:28,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:28,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:28,705 INFO L129 PetriNetUnfolder]: 298/612 cut-off events. [2021-03-25 12:13:28,706 INFO L130 PetriNetUnfolder]: For 21525/21555 co-relation queries the response was YES. [2021-03-25 12:13:28,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7798 conditions, 612 events. 298/612 cut-off events. For 21525/21555 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3343 event pairs, 12 based on Foata normal form. 19/631 useless extension candidates. Maximal degree in co-relation 7666. Up to 477 conditions per place. [2021-03-25 12:13:28,712 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 225 selfloop transitions, 94 changer transitions 6/333 dead transitions. [2021-03-25 12:13:28,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 333 transitions, 8193 flow [2021-03-25 12:13:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:13:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:13:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 373 transitions. [2021-03-25 12:13:28,713 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3790650406504065 [2021-03-25 12:13:28,713 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 373 transitions. [2021-03-25 12:13:28,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 373 transitions. [2021-03-25 12:13:28,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:28,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 373 transitions. [2021-03-25 12:13:28,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,715 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,715 INFO L185 Difference]: Start difference. First operand has 241 places, 324 transitions, 7434 flow. Second operand 12 states and 373 transitions. [2021-03-25 12:13:28,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 333 transitions, 8193 flow [2021-03-25 12:13:28,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 333 transitions, 7860 flow, removed 23 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:28,800 INFO L241 Difference]: Finished difference. Result has 247 places, 322 transitions, 7280 flow [2021-03-25 12:13:28,800 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7109, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7280, PETRI_PLACES=247, PETRI_TRANSITIONS=322} [2021-03-25 12:13:28,800 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 200 predicate places. [2021-03-25 12:13:28,801 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:28,801 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 322 transitions, 7280 flow [2021-03-25 12:13:28,801 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 322 transitions, 7280 flow [2021-03-25 12:13:28,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 241 places, 322 transitions, 7280 flow [2021-03-25 12:13:28,858 INFO L129 PetriNetUnfolder]: 274/577 cut-off events. [2021-03-25 12:13:28,858 INFO L130 PetriNetUnfolder]: For 18205/18227 co-relation queries the response was YES. [2021-03-25 12:13:28,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6937 conditions, 577 events. 274/577 cut-off events. For 18205/18227 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3181 event pairs, 8 based on Foata normal form. 5/580 useless extension candidates. Maximal degree in co-relation 6844. Up to 260 conditions per place. [2021-03-25 12:13:28,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-25 12:13:28,878 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:28,878 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:28,878 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-25 12:13:28,878 INFO L480 AbstractCegarLoop]: Abstraction has has 241 places, 322 transitions, 7280 flow [2021-03-25 12:13:28,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:28,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:28,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-25 12:13:28,878 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:28,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1303136933, now seen corresponding path program 32 times [2021-03-25 12:13:28,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:28,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657638857] [2021-03-25 12:13:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:28,895 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:28,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:28,900 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:28,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:28,907 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:28,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:28,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:28,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:28,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:28,980 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:28,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:28,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657638857] [2021-03-25 12:13:28,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:28,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:28,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9972399] [2021-03-25 12:13:28,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:28,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:28,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:28,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:28,984 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:28,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 322 transitions, 7280 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:28,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:28,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:28,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:29,289 INFO L129 PetriNetUnfolder]: 297/611 cut-off events. [2021-03-25 12:13:29,290 INFO L130 PetriNetUnfolder]: For 20661/20691 co-relation queries the response was YES. [2021-03-25 12:13:29,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7665 conditions, 611 events. 297/611 cut-off events. For 20661/20691 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3340 event pairs, 22 based on Foata normal form. 16/626 useless extension candidates. Maximal degree in co-relation 7570. Up to 497 conditions per place. [2021-03-25 12:13:29,297 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 237 selfloop transitions, 79 changer transitions 6/330 dead transitions. [2021-03-25 12:13:29,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 330 transitions, 8029 flow [2021-03-25 12:13:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:29,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 341 transitions. [2021-03-25 12:13:29,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3780487804878049 [2021-03-25 12:13:29,298 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 341 transitions. [2021-03-25 12:13:29,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 341 transitions. [2021-03-25 12:13:29,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:29,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 341 transitions. [2021-03-25 12:13:29,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.0) internal successors, (341), 11 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,299 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,299 INFO L185 Difference]: Start difference. First operand has 241 places, 322 transitions, 7280 flow. Second operand 11 states and 341 transitions. [2021-03-25 12:13:29,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 330 transitions, 8029 flow [2021-03-25 12:13:29,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 330 transitions, 7823 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:29,385 INFO L241 Difference]: Finished difference. Result has 245 places, 320 transitions, 7191 flow [2021-03-25 12:13:29,386 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7082, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7191, PETRI_PLACES=245, PETRI_TRANSITIONS=320} [2021-03-25 12:13:29,386 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 198 predicate places. [2021-03-25 12:13:29,386 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:29,386 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 320 transitions, 7191 flow [2021-03-25 12:13:29,386 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 320 transitions, 7191 flow [2021-03-25 12:13:29,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 320 transitions, 7191 flow [2021-03-25 12:13:29,441 INFO L129 PetriNetUnfolder]: 258/546 cut-off events. [2021-03-25 12:13:29,441 INFO L130 PetriNetUnfolder]: For 18328/18382 co-relation queries the response was YES. [2021-03-25 12:13:29,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6544 conditions, 546 events. 258/546 cut-off events. For 18328/18382 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3018 event pairs, 13 based on Foata normal form. 12/552 useless extension candidates. Maximal degree in co-relation 6451. Up to 249 conditions per place. [2021-03-25 12:13:29,448 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-25 12:13:29,460 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:29,460 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:29,461 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 12:13:29,461 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 320 transitions, 7191 flow [2021-03-25 12:13:29,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:29,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:29,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-25 12:13:29,461 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:29,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:29,462 INFO L82 PathProgramCache]: Analyzing trace with hash 341477083, now seen corresponding path program 33 times [2021-03-25 12:13:29,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:29,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832803034] [2021-03-25 12:13:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:29,472 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:29,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:29,476 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:29,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:29,483 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:29,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:29,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:29,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:29,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:29,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:29,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:29,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:29,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:29,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:29,521 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:29,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:29,527 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:29,540 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:29,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:29,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:29,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832803034] [2021-03-25 12:13:29,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:29,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:29,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858134975] [2021-03-25 12:13:29,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:29,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:29,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:29,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:29,544 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:29,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 320 transitions, 7191 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:29,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:29,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:29,855 INFO L129 PetriNetUnfolder]: 309/632 cut-off events. [2021-03-25 12:13:29,855 INFO L130 PetriNetUnfolder]: For 20546/20576 co-relation queries the response was YES. [2021-03-25 12:13:29,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7745 conditions, 632 events. 309/632 cut-off events. For 20546/20576 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3460 event pairs, 24 based on Foata normal form. 16/647 useless extension candidates. Maximal degree in co-relation 7650. Up to 517 conditions per place. [2021-03-25 12:13:29,861 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 258 selfloop transitions, 69 changer transitions 2/337 dead transitions. [2021-03-25 12:13:29,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 337 transitions, 8027 flow [2021-03-25 12:13:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:29,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 289 transitions. [2021-03-25 12:13:29,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3915989159891599 [2021-03-25 12:13:29,862 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 289 transitions. [2021-03-25 12:13:29,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 289 transitions. [2021-03-25 12:13:29,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:29,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 289 transitions. [2021-03-25 12:13:29,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.111111111111114) internal successors, (289), 9 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,863 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:29,863 INFO L185 Difference]: Start difference. First operand has 240 places, 320 transitions, 7191 flow. Second operand 9 states and 289 transitions. [2021-03-25 12:13:29,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 337 transitions, 8027 flow [2021-03-25 12:13:29,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 337 transitions, 7849 flow, removed 10 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:29,943 INFO L241 Difference]: Finished difference. Result has 241 places, 331 transitions, 7330 flow [2021-03-25 12:13:29,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7021, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7330, PETRI_PLACES=241, PETRI_TRANSITIONS=331} [2021-03-25 12:13:29,944 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 194 predicate places. [2021-03-25 12:13:29,944 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:29,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 331 transitions, 7330 flow [2021-03-25 12:13:29,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 331 transitions, 7330 flow [2021-03-25 12:13:29,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 331 transitions, 7330 flow [2021-03-25 12:13:29,999 INFO L129 PetriNetUnfolder]: 269/570 cut-off events. [2021-03-25 12:13:29,999 INFO L130 PetriNetUnfolder]: For 18322/18412 co-relation queries the response was YES. [2021-03-25 12:13:30,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6716 conditions, 570 events. 269/570 cut-off events. For 18322/18412 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3180 event pairs, 7 based on Foata normal form. 12/579 useless extension candidates. Maximal degree in co-relation 6624. Up to 253 conditions per place. [2021-03-25 12:13:30,007 INFO L142 LiptonReduction]: Number of co-enabled transitions 296 [2021-03-25 12:13:30,020 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:30,020 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:30,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 12:13:30,020 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 331 transitions, 7330 flow [2021-03-25 12:13:30,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:30,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:30,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-25 12:13:30,020 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:30,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:30,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1936297265, now seen corresponding path program 34 times [2021-03-25 12:13:30,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:30,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332995786] [2021-03-25 12:13:30,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:30,052 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:30,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:30,056 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:30,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:30,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:30,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:30,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:30,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:30,100 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:30,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:30,106 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:30,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:30,117 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:30,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:30,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332995786] [2021-03-25 12:13:30,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:30,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:30,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200078253] [2021-03-25 12:13:30,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:30,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:30,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:30,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:30,120 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:30,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 331 transitions, 7330 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:30,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:30,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:30,347 INFO L129 PetriNetUnfolder]: 308/630 cut-off events. [2021-03-25 12:13:30,347 INFO L130 PetriNetUnfolder]: For 20411/20437 co-relation queries the response was YES. [2021-03-25 12:13:30,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7775 conditions, 630 events. 308/630 cut-off events. For 20411/20437 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3466 event pairs, 27 based on Foata normal form. 19/648 useless extension candidates. Maximal degree in co-relation 7681. Up to 555 conditions per place. [2021-03-25 12:13:30,354 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 295 selfloop transitions, 27 changer transitions 4/334 dead transitions. [2021-03-25 12:13:30,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 334 transitions, 7995 flow [2021-03-25 12:13:30,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:30,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 275 transitions. [2021-03-25 12:13:30,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37262872628726285 [2021-03-25 12:13:30,355 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 275 transitions. [2021-03-25 12:13:30,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 275 transitions. [2021-03-25 12:13:30,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:30,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 275 transitions. [2021-03-25 12:13:30,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.555555555555557) internal successors, (275), 9 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,356 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,356 INFO L185 Difference]: Start difference. First operand has 239 places, 331 transitions, 7330 flow. Second operand 9 states and 275 transitions. [2021-03-25 12:13:30,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 334 transitions, 7995 flow [2021-03-25 12:13:30,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 334 transitions, 7893 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:30,436 INFO L241 Difference]: Finished difference. Result has 242 places, 327 transitions, 7168 flow [2021-03-25 12:13:30,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7228, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7168, PETRI_PLACES=242, PETRI_TRANSITIONS=327} [2021-03-25 12:13:30,437 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 195 predicate places. [2021-03-25 12:13:30,437 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:30,437 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 327 transitions, 7168 flow [2021-03-25 12:13:30,437 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 327 transitions, 7168 flow [2021-03-25 12:13:30,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 327 transitions, 7168 flow [2021-03-25 12:13:30,500 INFO L129 PetriNetUnfolder]: 267/556 cut-off events. [2021-03-25 12:13:30,501 INFO L130 PetriNetUnfolder]: For 18348/18474 co-relation queries the response was YES. [2021-03-25 12:13:30,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6586 conditions, 556 events. 267/556 cut-off events. For 18348/18474 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3055 event pairs, 8 based on Foata normal form. 17/564 useless extension candidates. Maximal degree in co-relation 6495. Up to 254 conditions per place. [2021-03-25 12:13:30,509 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 12:13:30,521 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:30,521 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:30,521 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 12:13:30,521 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 327 transitions, 7168 flow [2021-03-25 12:13:30,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:30,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:30,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-25 12:13:30,521 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:30,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1755429501, now seen corresponding path program 35 times [2021-03-25 12:13:30,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:30,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887390908] [2021-03-25 12:13:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:30,551 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:30,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:30,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:30,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:30,563 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:30,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:30,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:30,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:30,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:30,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,613 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:30,627 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:30,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:30,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887390908] [2021-03-25 12:13:30,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:30,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:30,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138653937] [2021-03-25 12:13:30,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:30,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:30,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:30,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:30,630 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:30,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 327 transitions, 7168 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:30,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:30,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:30,875 INFO L129 PetriNetUnfolder]: 306/624 cut-off events. [2021-03-25 12:13:30,875 INFO L130 PetriNetUnfolder]: For 20405/20441 co-relation queries the response was YES. [2021-03-25 12:13:30,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7676 conditions, 624 events. 306/624 cut-off events. For 20405/20441 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3398 event pairs, 27 based on Foata normal form. 19/641 useless extension candidates. Maximal degree in co-relation 7583. Up to 551 conditions per place. [2021-03-25 12:13:30,881 INFO L132 encePairwiseOnDemand]: 70/82 looper letters, 293 selfloop transitions, 21 changer transitions 8/330 dead transitions. [2021-03-25 12:13:30,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 330 transitions, 7825 flow [2021-03-25 12:13:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:30,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 300 transitions. [2021-03-25 12:13:30,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36585365853658536 [2021-03-25 12:13:30,882 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 300 transitions. [2021-03-25 12:13:30,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 300 transitions. [2021-03-25 12:13:30,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:30,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 300 transitions. [2021-03-25 12:13:30,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.0) internal successors, (300), 10 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,883 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:30,883 INFO L185 Difference]: Start difference. First operand has 240 places, 327 transitions, 7168 flow. Second operand 10 states and 300 transitions. [2021-03-25 12:13:30,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 330 transitions, 7825 flow [2021-03-25 12:13:30,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 330 transitions, 7780 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:30,965 INFO L241 Difference]: Finished difference. Result has 243 places, 319 transitions, 6985 flow [2021-03-25 12:13:30,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=7123, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6985, PETRI_PLACES=243, PETRI_TRANSITIONS=319} [2021-03-25 12:13:30,965 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 196 predicate places. [2021-03-25 12:13:30,965 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:30,965 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 319 transitions, 6985 flow [2021-03-25 12:13:30,965 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 319 transitions, 6985 flow [2021-03-25 12:13:30,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 319 transitions, 6985 flow [2021-03-25 12:13:31,019 INFO L129 PetriNetUnfolder]: 272/566 cut-off events. [2021-03-25 12:13:31,019 INFO L130 PetriNetUnfolder]: For 18595/18685 co-relation queries the response was YES. [2021-03-25 12:13:31,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6673 conditions, 566 events. 272/566 cut-off events. For 18595/18685 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3114 event pairs, 8 based on Foata normal form. 17/577 useless extension candidates. Maximal degree in co-relation 6582. Up to 262 conditions per place. [2021-03-25 12:13:31,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 284 [2021-03-25 12:13:31,038 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:31,038 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:31,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 12:13:31,038 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 319 transitions, 6985 flow [2021-03-25 12:13:31,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,038 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:31,038 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:31,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-25 12:13:31,038 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:31,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:31,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1804693677, now seen corresponding path program 36 times [2021-03-25 12:13:31,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:31,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962062871] [2021-03-25 12:13:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:31,059 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:31,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:31,066 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:31,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:31,074 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:31,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:31,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:31,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:31,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:31,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:31,110 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:31,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:31,122 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:31,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:31,144 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:31,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:31,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962062871] [2021-03-25 12:13:31,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:31,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:31,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771615999] [2021-03-25 12:13:31,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:31,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:31,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:31,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:31,148 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:31,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 319 transitions, 6985 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:31,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:31,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:31,459 INFO L129 PetriNetUnfolder]: 303/613 cut-off events. [2021-03-25 12:13:31,459 INFO L130 PetriNetUnfolder]: For 19784/19814 co-relation queries the response was YES. [2021-03-25 12:13:31,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7529 conditions, 613 events. 303/613 cut-off events. For 19784/19814 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3316 event pairs, 11 based on Foata normal form. 19/632 useless extension candidates. Maximal degree in co-relation 7436. Up to 450 conditions per place. [2021-03-25 12:13:31,465 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 206 selfloop transitions, 111 changer transitions 2/327 dead transitions. [2021-03-25 12:13:31,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 327 transitions, 7704 flow [2021-03-25 12:13:31,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:31,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2021-03-25 12:13:31,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3975609756097561 [2021-03-25 12:13:31,466 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 326 transitions. [2021-03-25 12:13:31,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 326 transitions. [2021-03-25 12:13:31,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:31,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 326 transitions. [2021-03-25 12:13:31,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.6) internal successors, (326), 10 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,468 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,468 INFO L185 Difference]: Start difference. First operand has 235 places, 319 transitions, 6985 flow. Second operand 10 states and 326 transitions. [2021-03-25 12:13:31,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 327 transitions, 7704 flow [2021-03-25 12:13:31,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 327 transitions, 7554 flow, removed 32 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:31,549 INFO L241 Difference]: Finished difference. Result has 238 places, 319 transitions, 7107 flow [2021-03-25 12:13:31,550 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6837, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7107, PETRI_PLACES=238, PETRI_TRANSITIONS=319} [2021-03-25 12:13:31,550 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 191 predicate places. [2021-03-25 12:13:31,550 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:31,550 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 319 transitions, 7107 flow [2021-03-25 12:13:31,550 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 319 transitions, 7107 flow [2021-03-25 12:13:31,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 319 transitions, 7107 flow [2021-03-25 12:13:31,602 INFO L129 PetriNetUnfolder]: 261/543 cut-off events. [2021-03-25 12:13:31,603 INFO L130 PetriNetUnfolder]: For 18194/18284 co-relation queries the response was YES. [2021-03-25 12:13:31,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6539 conditions, 543 events. 261/543 cut-off events. For 18194/18284 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2975 event pairs, 10 based on Foata normal form. 12/552 useless extension candidates. Maximal degree in co-relation 6449. Up to 250 conditions per place. [2021-03-25 12:13:31,609 INFO L142 LiptonReduction]: Number of co-enabled transitions 284 [2021-03-25 12:13:31,621 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:31,621 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:31,621 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 12:13:31,621 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 319 transitions, 7107 flow [2021-03-25 12:13:31,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,621 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:31,621 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:31,621 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-25 12:13:31,622 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2000805677, now seen corresponding path program 37 times [2021-03-25 12:13:31,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:31,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048766846] [2021-03-25 12:13:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:31,642 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:31,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:31,648 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:31,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:31,654 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:31,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:31,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:31,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:31,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:31,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:31,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:31,689 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:31,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:31,700 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:31,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:31,712 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:31,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:31,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048766846] [2021-03-25 12:13:31,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:31,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:31,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557988216] [2021-03-25 12:13:31,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:31,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:31,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:31,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:31,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:31,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 319 transitions, 7107 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:31,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:31,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:31,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:32,047 INFO L129 PetriNetUnfolder]: 302/623 cut-off events. [2021-03-25 12:13:32,047 INFO L130 PetriNetUnfolder]: For 20766/20786 co-relation queries the response was YES. [2021-03-25 12:13:32,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7737 conditions, 623 events. 302/623 cut-off events. For 20766/20786 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3406 event pairs, 25 based on Foata normal form. 14/636 useless extension candidates. Maximal degree in co-relation 7645. Up to 508 conditions per place. [2021-03-25 12:13:32,053 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 241 selfloop transitions, 70 changer transitions 12/331 dead transitions. [2021-03-25 12:13:32,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 331 transitions, 8044 flow [2021-03-25 12:13:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 348 transitions. [2021-03-25 12:13:32,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3858093126385809 [2021-03-25 12:13:32,053 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 348 transitions. [2021-03-25 12:13:32,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 348 transitions. [2021-03-25 12:13:32,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:32,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 348 transitions. [2021-03-25 12:13:32,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.636363636363637) internal successors, (348), 11 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,055 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,055 INFO L185 Difference]: Start difference. First operand has 237 places, 319 transitions, 7107 flow. Second operand 11 states and 348 transitions. [2021-03-25 12:13:32,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 331 transitions, 8044 flow [2021-03-25 12:13:32,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 331 transitions, 7810 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:32,134 INFO L241 Difference]: Finished difference. Result has 243 places, 315 transitions, 6993 flow [2021-03-25 12:13:32,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6881, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6993, PETRI_PLACES=243, PETRI_TRANSITIONS=315} [2021-03-25 12:13:32,134 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 196 predicate places. [2021-03-25 12:13:32,134 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:32,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 315 transitions, 6993 flow [2021-03-25 12:13:32,134 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 315 transitions, 6993 flow [2021-03-25 12:13:32,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 315 transitions, 6993 flow [2021-03-25 12:13:32,188 INFO L129 PetriNetUnfolder]: 260/542 cut-off events. [2021-03-25 12:13:32,188 INFO L130 PetriNetUnfolder]: For 18429/18496 co-relation queries the response was YES. [2021-03-25 12:13:32,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6569 conditions, 542 events. 260/542 cut-off events. For 18429/18496 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3043 event pairs, 9 based on Foata normal form. 11/546 useless extension candidates. Maximal degree in co-relation 6435. Up to 250 conditions per place. [2021-03-25 12:13:32,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 288 [2021-03-25 12:13:32,206 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:32,207 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:32,207 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 12:13:32,207 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 315 transitions, 6993 flow [2021-03-25 12:13:32,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,207 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:32,207 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:32,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-25 12:13:32,207 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:32,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:32,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2050650319, now seen corresponding path program 38 times [2021-03-25 12:13:32,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:32,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972659314] [2021-03-25 12:13:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:32,217 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:32,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:32,221 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:32,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:32,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:32,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:32,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:32,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:32,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,276 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:32,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:32,291 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:32,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:32,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972659314] [2021-03-25 12:13:32,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:32,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:32,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614721328] [2021-03-25 12:13:32,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:32,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:32,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:32,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:32,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:32,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 315 transitions, 6993 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:32,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:32,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:32,601 INFO L129 PetriNetUnfolder]: 299/608 cut-off events. [2021-03-25 12:13:32,601 INFO L130 PetriNetUnfolder]: For 21226/21256 co-relation queries the response was YES. [2021-03-25 12:13:32,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7595 conditions, 608 events. 299/608 cut-off events. For 21226/21256 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3325 event pairs, 15 based on Foata normal form. 16/623 useless extension candidates. Maximal degree in co-relation 7457. Up to 501 conditions per place. [2021-03-25 12:13:32,608 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 240 selfloop transitions, 65 changer transitions 11/324 dead transitions. [2021-03-25 12:13:32,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 324 transitions, 7704 flow [2021-03-25 12:13:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 314 transitions. [2021-03-25 12:13:32,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3829268292682927 [2021-03-25 12:13:32,608 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 314 transitions. [2021-03-25 12:13:32,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 314 transitions. [2021-03-25 12:13:32,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:32,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 314 transitions. [2021-03-25 12:13:32,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,609 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,610 INFO L185 Difference]: Start difference. First operand has 242 places, 315 transitions, 6993 flow. Second operand 10 states and 314 transitions. [2021-03-25 12:13:32,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 324 transitions, 7704 flow [2021-03-25 12:13:32,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 324 transitions, 7426 flow, removed 12 selfloop flow, removed 13 redundant places. [2021-03-25 12:13:32,692 INFO L241 Difference]: Finished difference. Result has 242 places, 308 transitions, 6699 flow [2021-03-25 12:13:32,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6715, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6699, PETRI_PLACES=242, PETRI_TRANSITIONS=308} [2021-03-25 12:13:32,692 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 195 predicate places. [2021-03-25 12:13:32,692 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:32,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 308 transitions, 6699 flow [2021-03-25 12:13:32,693 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 308 transitions, 6699 flow [2021-03-25 12:13:32,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 308 transitions, 6699 flow [2021-03-25 12:13:32,745 INFO L129 PetriNetUnfolder]: 266/544 cut-off events. [2021-03-25 12:13:32,745 INFO L130 PetriNetUnfolder]: For 18298/18350 co-relation queries the response was YES. [2021-03-25 12:13:32,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6469 conditions, 544 events. 266/544 cut-off events. For 18298/18350 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2920 event pairs, 15 based on Foata normal form. 15/554 useless extension candidates. Maximal degree in co-relation 6375. Up to 254 conditions per place. [2021-03-25 12:13:32,753 INFO L142 LiptonReduction]: Number of co-enabled transitions 280 [2021-03-25 12:13:32,764 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:32,764 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:32,765 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 12:13:32,765 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 308 transitions, 6699 flow [2021-03-25 12:13:32,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,765 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:32,765 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:32,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-25 12:13:32,765 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:32,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:32,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1027043113, now seen corresponding path program 39 times [2021-03-25 12:13:32,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:32,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963051268] [2021-03-25 12:13:32,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:32,777 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:32,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:32,782 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:32,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:32,789 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:32,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:32,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:32,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:32,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:32,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:32,868 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:32,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:32,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963051268] [2021-03-25 12:13:32,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:32,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:32,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746826932] [2021-03-25 12:13:32,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:32,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:32,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:32,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:32,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:32,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 308 transitions, 6699 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:32,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:32,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:32,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:33,191 INFO L129 PetriNetUnfolder]: 297/597 cut-off events. [2021-03-25 12:13:33,191 INFO L130 PetriNetUnfolder]: For 20391/20411 co-relation queries the response was YES. [2021-03-25 12:13:33,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7364 conditions, 597 events. 297/597 cut-off events. For 20391/20411 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3201 event pairs, 17 based on Foata normal form. 13/609 useless extension candidates. Maximal degree in co-relation 7268. Up to 503 conditions per place. [2021-03-25 12:13:33,197 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 240 selfloop transitions, 62 changer transitions 6/316 dead transitions. [2021-03-25 12:13:33,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 316 transitions, 7422 flow [2021-03-25 12:13:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:13:33,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:13:33,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 368 transitions. [2021-03-25 12:13:33,198 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37398373983739835 [2021-03-25 12:13:33,198 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 368 transitions. [2021-03-25 12:13:33,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 368 transitions. [2021-03-25 12:13:33,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:33,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 368 transitions. [2021-03-25 12:13:33,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.666666666666668) internal successors, (368), 12 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,200 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,200 INFO L185 Difference]: Start difference. First operand has 239 places, 308 transitions, 6699 flow. Second operand 12 states and 368 transitions. [2021-03-25 12:13:33,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 316 transitions, 7422 flow [2021-03-25 12:13:33,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 316 transitions, 7173 flow, removed 6 selfloop flow, removed 15 redundant places. [2021-03-25 12:13:33,278 INFO L241 Difference]: Finished difference. Result has 239 places, 306 transitions, 6523 flow [2021-03-25 12:13:33,278 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6452, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6523, PETRI_PLACES=239, PETRI_TRANSITIONS=306} [2021-03-25 12:13:33,278 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 192 predicate places. [2021-03-25 12:13:33,278 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:33,278 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 306 transitions, 6523 flow [2021-03-25 12:13:33,278 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 306 transitions, 6523 flow [2021-03-25 12:13:33,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 306 transitions, 6523 flow [2021-03-25 12:13:33,328 INFO L129 PetriNetUnfolder]: 256/525 cut-off events. [2021-03-25 12:13:33,329 INFO L130 PetriNetUnfolder]: For 18176/18267 co-relation queries the response was YES. [2021-03-25 12:13:33,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6142 conditions, 525 events. 256/525 cut-off events. For 18176/18267 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2815 event pairs, 16 based on Foata normal form. 14/533 useless extension candidates. Maximal degree in co-relation 6050. Up to 245 conditions per place. [2021-03-25 12:13:33,335 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 12:13:33,346 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:33,346 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:33,346 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 12:13:33,346 INFO L480 AbstractCegarLoop]: Abstraction has has 234 places, 306 transitions, 6523 flow [2021-03-25 12:13:33,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:33,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:33,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-25 12:13:33,346 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:33,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:33,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1646470945, now seen corresponding path program 40 times [2021-03-25 12:13:33,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:33,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238405879] [2021-03-25 12:13:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:33,359 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:33,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:33,364 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:33,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:33,371 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:33,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:33,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:33,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:33,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,419 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:33,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:33,425 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:33,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:33,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238405879] [2021-03-25 12:13:33,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:33,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:33,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575884046] [2021-03-25 12:13:33,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:33,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:33,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:33,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:33,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:33,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 306 transitions, 6523 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:33,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:33,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:33,701 INFO L129 PetriNetUnfolder]: 296/594 cut-off events. [2021-03-25 12:13:33,701 INFO L130 PetriNetUnfolder]: For 19981/20001 co-relation queries the response was YES. [2021-03-25 12:13:33,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7213 conditions, 594 events. 296/594 cut-off events. For 19981/20001 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3171 event pairs, 25 based on Foata normal form. 13/606 useless extension candidates. Maximal degree in co-relation 7119. Up to 503 conditions per place. [2021-03-25 12:13:33,707 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 241 selfloop transitions, 62 changer transitions 2/313 dead transitions. [2021-03-25 12:13:33,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 313 transitions, 7227 flow [2021-03-25 12:13:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 286 transitions. [2021-03-25 12:13:33,708 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3875338753387534 [2021-03-25 12:13:33,708 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 286 transitions. [2021-03-25 12:13:33,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 286 transitions. [2021-03-25 12:13:33,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:33,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 286 transitions. [2021-03-25 12:13:33,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.77777777777778) internal successors, (286), 9 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,709 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,709 INFO L185 Difference]: Start difference. First operand has 234 places, 306 transitions, 6523 flow. Second operand 9 states and 286 transitions. [2021-03-25 12:13:33,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 313 transitions, 7227 flow [2021-03-25 12:13:33,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 313 transitions, 7124 flow, removed 9 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:33,783 INFO L241 Difference]: Finished difference. Result has 235 places, 308 transitions, 6645 flow [2021-03-25 12:13:33,784 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6422, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6645, PETRI_PLACES=235, PETRI_TRANSITIONS=308} [2021-03-25 12:13:33,784 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 188 predicate places. [2021-03-25 12:13:33,784 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:33,784 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 235 places, 308 transitions, 6645 flow [2021-03-25 12:13:33,784 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 235 places, 308 transitions, 6645 flow [2021-03-25 12:13:33,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 234 places, 308 transitions, 6645 flow [2021-03-25 12:13:33,835 INFO L129 PetriNetUnfolder]: 262/545 cut-off events. [2021-03-25 12:13:33,836 INFO L130 PetriNetUnfolder]: For 18518/18543 co-relation queries the response was YES. [2021-03-25 12:13:33,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6394 conditions, 545 events. 262/545 cut-off events. For 18518/18543 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2976 event pairs, 10 based on Foata normal form. 7/550 useless extension candidates. Maximal degree in co-relation 6270. Up to 249 conditions per place. [2021-03-25 12:13:33,842 INFO L142 LiptonReduction]: Number of co-enabled transitions 282 [2021-03-25 12:13:33,853 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:33,853 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:33,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 12:13:33,854 INFO L480 AbstractCegarLoop]: Abstraction has has 234 places, 308 transitions, 6645 flow [2021-03-25 12:13:33,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:33,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:33,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-25 12:13:33,854 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:33,854 INFO L82 PathProgramCache]: Analyzing trace with hash -2110640773, now seen corresponding path program 41 times [2021-03-25 12:13:33,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:33,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900743104] [2021-03-25 12:13:33,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:33,870 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:33,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:33,875 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:33,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:33,882 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:33,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:33,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:33,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:33,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:33,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:33,944 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:33,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:33,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900743104] [2021-03-25 12:13:33,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:33,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:33,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246454139] [2021-03-25 12:13:33,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:33,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:33,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:33,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:33,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:33,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 308 transitions, 6645 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:33,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:33,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:33,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:34,225 INFO L129 PetriNetUnfolder]: 296/598 cut-off events. [2021-03-25 12:13:34,225 INFO L130 PetriNetUnfolder]: For 20364/20394 co-relation queries the response was YES. [2021-03-25 12:13:34,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7290 conditions, 598 events. 296/598 cut-off events. For 20364/20394 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3204 event pairs, 25 based on Foata normal form. 16/613 useless extension candidates. Maximal degree in co-relation 7156. Up to 503 conditions per place. [2021-03-25 12:13:34,231 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 240 selfloop transitions, 64 changer transitions 2/314 dead transitions. [2021-03-25 12:13:34,231 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 314 transitions, 7344 flow [2021-03-25 12:13:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:34,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:13:34,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38414634146341464 [2021-03-25 12:13:34,236 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:13:34,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:13:34,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:34,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:13:34,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,238 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 82.0) internal successors, (902), 11 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,238 INFO L185 Difference]: Start difference. First operand has 234 places, 308 transitions, 6645 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:13:34,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 314 transitions, 7344 flow [2021-03-25 12:13:34,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 314 transitions, 7148 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:34,322 INFO L241 Difference]: Finished difference. Result has 238 places, 309 transitions, 6645 flow [2021-03-25 12:13:34,323 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6451, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6645, PETRI_PLACES=238, PETRI_TRANSITIONS=309} [2021-03-25 12:13:34,323 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 191 predicate places. [2021-03-25 12:13:34,323 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:34,323 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 309 transitions, 6645 flow [2021-03-25 12:13:34,323 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 309 transitions, 6645 flow [2021-03-25 12:13:34,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 309 transitions, 6645 flow [2021-03-25 12:13:34,391 INFO L129 PetriNetUnfolder]: 265/552 cut-off events. [2021-03-25 12:13:34,391 INFO L130 PetriNetUnfolder]: For 18568/18606 co-relation queries the response was YES. [2021-03-25 12:13:34,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6424 conditions, 552 events. 265/552 cut-off events. For 18568/18606 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3017 event pairs, 12 based on Foata normal form. 5/553 useless extension candidates. Maximal degree in co-relation 6293. Up to 252 conditions per place. [2021-03-25 12:13:34,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 12:13:34,412 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:34,412 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:34,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 12:13:34,412 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 309 transitions, 6645 flow [2021-03-25 12:13:34,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:34,412 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:34,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-25 12:13:34,412 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:34,413 INFO L82 PathProgramCache]: Analyzing trace with hash 50247729, now seen corresponding path program 42 times [2021-03-25 12:13:34,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:34,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293418059] [2021-03-25 12:13:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:34,422 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:34,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:34,427 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:34,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:34,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:34,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:34,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:34,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:34,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:34,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:34,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:34,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:34,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:34,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:34,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:34,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:34,482 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:34,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:34,495 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:34,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:34,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293418059] [2021-03-25 12:13:34,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:34,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:34,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399478352] [2021-03-25 12:13:34,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:34,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:34,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:34,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:34,499 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:34,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 309 transitions, 6645 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:34,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:34,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:34,856 INFO L129 PetriNetUnfolder]: 295/598 cut-off events. [2021-03-25 12:13:34,856 INFO L130 PetriNetUnfolder]: For 20155/20185 co-relation queries the response was YES. [2021-03-25 12:13:34,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7285 conditions, 598 events. 295/598 cut-off events. For 20155/20185 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3207 event pairs, 28 based on Foata normal form. 13/609 useless extension candidates. Maximal degree in co-relation 7150. Up to 516 conditions per place. [2021-03-25 12:13:34,865 INFO L132 encePairwiseOnDemand]: 69/82 looper letters, 254 selfloop transitions, 41 changer transitions 10/313 dead transitions. [2021-03-25 12:13:34,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 313 transitions, 7329 flow [2021-03-25 12:13:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:13:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:13:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2021-03-25 12:13:34,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3678861788617886 [2021-03-25 12:13:34,866 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 362 transitions. [2021-03-25 12:13:34,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 362 transitions. [2021-03-25 12:13:34,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:34,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 362 transitions. [2021-03-25 12:13:34,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,867 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 82.0) internal successors, (1066), 13 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:34,867 INFO L185 Difference]: Start difference. First operand has 237 places, 309 transitions, 6645 flow. Second operand 12 states and 362 transitions. [2021-03-25 12:13:34,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 313 transitions, 7329 flow [2021-03-25 12:13:34,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 313 transitions, 7220 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:34,983 INFO L241 Difference]: Finished difference. Result has 246 places, 302 transitions, 6456 flow [2021-03-25 12:13:34,984 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6536, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6456, PETRI_PLACES=246, PETRI_TRANSITIONS=302} [2021-03-25 12:13:34,984 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 199 predicate places. [2021-03-25 12:13:34,984 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:34,984 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 302 transitions, 6456 flow [2021-03-25 12:13:34,984 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 302 transitions, 6456 flow [2021-03-25 12:13:34,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 302 transitions, 6456 flow [2021-03-25 12:13:35,068 INFO L129 PetriNetUnfolder]: 267/546 cut-off events. [2021-03-25 12:13:35,068 INFO L130 PetriNetUnfolder]: For 18777/18888 co-relation queries the response was YES. [2021-03-25 12:13:35,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6412 conditions, 546 events. 267/546 cut-off events. For 18777/18888 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2900 event pairs, 13 based on Foata normal form. 12/552 useless extension candidates. Maximal degree in co-relation 6319. Up to 258 conditions per place. [2021-03-25 12:13:35,077 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 12:13:35,092 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:35,093 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:35,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-03-25 12:13:35,093 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 302 transitions, 6456 flow [2021-03-25 12:13:35,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:35,093 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:35,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-25 12:13:35,093 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:35,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:35,094 INFO L82 PathProgramCache]: Analyzing trace with hash -2029241717, now seen corresponding path program 43 times [2021-03-25 12:13:35,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:35,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251703027] [2021-03-25 12:13:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:35,105 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:35,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:35,110 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:35,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:35,117 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:35,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:35,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:35,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,171 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:35,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:35,198 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:35,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:35,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251703027] [2021-03-25 12:13:35,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:35,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:35,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146893164] [2021-03-25 12:13:35,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:35,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:35,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:35,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:35,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:35,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 302 transitions, 6456 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:35,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:35,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:35,504 INFO L129 PetriNetUnfolder]: 292/591 cut-off events. [2021-03-25 12:13:35,505 INFO L130 PetriNetUnfolder]: For 20002/20032 co-relation queries the response was YES. [2021-03-25 12:13:35,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7155 conditions, 591 events. 292/591 cut-off events. For 20002/20032 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3145 event pairs, 25 based on Foata normal form. 16/606 useless extension candidates. Maximal degree in co-relation 7060. Up to 497 conditions per place. [2021-03-25 12:13:35,510 INFO L132 encePairwiseOnDemand]: 68/82 looper letters, 235 selfloop transitions, 63 changer transitions 2/308 dead transitions. [2021-03-25 12:13:35,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 308 transitions, 7141 flow [2021-03-25 12:13:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 341 transitions. [2021-03-25 12:13:35,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3780487804878049 [2021-03-25 12:13:35,511 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 341 transitions. [2021-03-25 12:13:35,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 341 transitions. [2021-03-25 12:13:35,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:35,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 341 transitions. [2021-03-25 12:13:35,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.0) internal successors, (341), 11 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,512 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,512 INFO L185 Difference]: Start difference. First operand has 242 places, 302 transitions, 6456 flow. Second operand 11 states and 341 transitions. [2021-03-25 12:13:35,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 308 transitions, 7141 flow [2021-03-25 12:13:35,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 308 transitions, 7058 flow, removed 4 selfloop flow, removed 14 redundant places. [2021-03-25 12:13:35,587 INFO L241 Difference]: Finished difference. Result has 241 places, 303 transitions, 6561 flow [2021-03-25 12:13:35,587 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6373, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6561, PETRI_PLACES=241, PETRI_TRANSITIONS=303} [2021-03-25 12:13:35,587 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 194 predicate places. [2021-03-25 12:13:35,587 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:35,587 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 303 transitions, 6561 flow [2021-03-25 12:13:35,588 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 303 transitions, 6561 flow [2021-03-25 12:13:35,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 303 transitions, 6561 flow [2021-03-25 12:13:35,640 INFO L129 PetriNetUnfolder]: 260/544 cut-off events. [2021-03-25 12:13:35,640 INFO L130 PetriNetUnfolder]: For 19326/19377 co-relation queries the response was YES. [2021-03-25 12:13:35,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6333 conditions, 544 events. 260/544 cut-off events. For 19326/19377 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2931 event pairs, 13 based on Foata normal form. 7/545 useless extension candidates. Maximal degree in co-relation 6215. Up to 250 conditions per place. [2021-03-25 12:13:35,647 INFO L142 LiptonReduction]: Number of co-enabled transitions 282 [2021-03-25 12:13:35,659 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:35,659 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:35,659 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 12:13:35,660 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 303 transitions, 6561 flow [2021-03-25 12:13:35,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:35,660 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:35,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-25 12:13:35,660 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:35,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:35,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1324857347, now seen corresponding path program 44 times [2021-03-25 12:13:35,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:35,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253667451] [2021-03-25 12:13:35,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:35,669 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:35,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:35,673 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:35,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:35,681 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:35,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:35,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:35,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:35,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:35,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,731 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:35,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:35,745 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:35,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:35,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253667451] [2021-03-25 12:13:35,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:35,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:35,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464542439] [2021-03-25 12:13:35,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:35,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:35,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:35,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:35,749 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2021-03-25 12:13:35,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 303 transitions, 6561 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:35,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:35,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2021-03-25 12:13:35,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:35,993 INFO L129 PetriNetUnfolder]: 291/594 cut-off events. [2021-03-25 12:13:35,993 INFO L130 PetriNetUnfolder]: For 20395/20425 co-relation queries the response was YES. [2021-03-25 12:13:35,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7217 conditions, 594 events. 291/594 cut-off events. For 20395/20425 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3179 event pairs, 29 based on Foata normal form. 13/605 useless extension candidates. Maximal degree in co-relation 7083. Up to 514 conditions per place. [2021-03-25 12:13:35,999 INFO L132 encePairwiseOnDemand]: 69/82 looper letters, 255 selfloop transitions, 36 changer transitions 8/307 dead transitions. [2021-03-25 12:13:35,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 307 transitions, 7214 flow [2021-03-25 12:13:35,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 329 transitions. [2021-03-25 12:13:36,000 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3647450110864745 [2021-03-25 12:13:36,000 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 329 transitions. [2021-03-25 12:13:36,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 329 transitions. [2021-03-25 12:13:36,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:36,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 329 transitions. [2021-03-25 12:13:36,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.90909090909091) internal successors, (329), 11 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,001 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 82.0) internal successors, (984), 12 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,001 INFO L185 Difference]: Start difference. First operand has 240 places, 303 transitions, 6561 flow. Second operand 11 states and 329 transitions. [2021-03-25 12:13:36,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 307 transitions, 7214 flow [2021-03-25 12:13:36,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 307 transitions, 7073 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:36,081 INFO L241 Difference]: Finished difference. Result has 246 places, 298 transitions, 6366 flow [2021-03-25 12:13:36,081 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=6422, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6366, PETRI_PLACES=246, PETRI_TRANSITIONS=298} [2021-03-25 12:13:36,081 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 199 predicate places. [2021-03-25 12:13:36,082 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:36,082 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 298 transitions, 6366 flow [2021-03-25 12:13:36,082 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 298 transitions, 6366 flow [2021-03-25 12:13:36,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 298 transitions, 6366 flow [2021-03-25 12:13:36,131 INFO L129 PetriNetUnfolder]: 257/536 cut-off events. [2021-03-25 12:13:36,131 INFO L130 PetriNetUnfolder]: For 18831/18877 co-relation queries the response was YES. [2021-03-25 12:13:36,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6221 conditions, 536 events. 257/536 cut-off events. For 18831/18877 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2864 event pairs, 11 based on Foata normal form. 15/550 useless extension candidates. Maximal degree in co-relation 6129. Up to 249 conditions per place. [2021-03-25 12:13:36,137 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 12:13:36,247 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:36,247 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:13:36,247 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 165 [2021-03-25 12:13:36,248 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 298 transitions, 6374 flow [2021-03-25 12:13:36,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:36,248 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:36,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-25 12:13:36,248 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:36,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:36,248 INFO L82 PathProgramCache]: Analyzing trace with hash 606134005, now seen corresponding path program 45 times [2021-03-25 12:13:36,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:36,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502419718] [2021-03-25 12:13:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:36,274 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:36,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:36,280 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:36,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:36,287 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:36,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:36,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:36,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:36,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:36,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:36,325 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:36,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:36,338 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:36,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:36,354 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:36,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:36,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502419718] [2021-03-25 12:13:36,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:36,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:36,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76378792] [2021-03-25 12:13:36,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:36,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:36,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:36,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:36,358 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:36,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 298 transitions, 6374 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:36,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:36,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:36,653 INFO L129 PetriNetUnfolder]: 289/585 cut-off events. [2021-03-25 12:13:36,653 INFO L130 PetriNetUnfolder]: For 20138/20168 co-relation queries the response was YES. [2021-03-25 12:13:36,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7056 conditions, 585 events. 289/585 cut-off events. For 20138/20168 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3120 event pairs, 25 based on Foata normal form. 16/600 useless extension candidates. Maximal degree in co-relation 6962. Up to 497 conditions per place. [2021-03-25 12:13:36,658 INFO L132 encePairwiseOnDemand]: 68/84 looper letters, 238 selfloop transitions, 53 changer transitions 3/302 dead transitions. [2021-03-25 12:13:36,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 302 transitions, 6990 flow [2021-03-25 12:13:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:13:36,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37142857142857144 [2021-03-25 12:13:36,659 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:13:36,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:13:36,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:36,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:13:36,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,661 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,661 INFO L185 Difference]: Start difference. First operand has 239 places, 298 transitions, 6374 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:13:36,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 302 transitions, 6990 flow [2021-03-25 12:13:36,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 302 transitions, 6810 flow, removed 42 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:36,739 INFO L241 Difference]: Finished difference. Result has 239 places, 296 transitions, 6263 flow [2021-03-25 12:13:36,739 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=6196, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6263, PETRI_PLACES=239, PETRI_TRANSITIONS=296} [2021-03-25 12:13:36,739 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 192 predicate places. [2021-03-25 12:13:36,739 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:36,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 296 transitions, 6263 flow [2021-03-25 12:13:36,740 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 296 transitions, 6263 flow [2021-03-25 12:13:36,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 296 transitions, 6263 flow [2021-03-25 12:13:36,788 INFO L129 PetriNetUnfolder]: 259/536 cut-off events. [2021-03-25 12:13:36,789 INFO L130 PetriNetUnfolder]: For 18796/18886 co-relation queries the response was YES. [2021-03-25 12:13:36,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6199 conditions, 536 events. 259/536 cut-off events. For 18796/18886 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2895 event pairs, 11 based on Foata normal form. 14/546 useless extension candidates. Maximal degree in co-relation 6109. Up to 244 conditions per place. [2021-03-25 12:13:36,795 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 12:13:36,805 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:36,805 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:36,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 12:13:36,805 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 296 transitions, 6263 flow [2021-03-25 12:13:36,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,805 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:36,806 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:36,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-25 12:13:36,806 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:36,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1239680945, now seen corresponding path program 1 times [2021-03-25 12:13:36,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:36,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878962091] [2021-03-25 12:13:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:36,815 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:36,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:36,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:36,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:36,827 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:36,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:36,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:36,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:36,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:36,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:36,856 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:36,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:36,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:36,884 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:36,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:36,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878962091] [2021-03-25 12:13:36,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:36,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:36,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936692965] [2021-03-25 12:13:36,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:36,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:36,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:36,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:36,888 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:36,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 296 transitions, 6263 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:36,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:36,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:36,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:37,148 INFO L129 PetriNetUnfolder]: 288/583 cut-off events. [2021-03-25 12:13:37,148 INFO L130 PetriNetUnfolder]: For 19673/19703 co-relation queries the response was YES. [2021-03-25 12:13:37,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7006 conditions, 583 events. 288/583 cut-off events. For 19673/19703 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3100 event pairs, 28 based on Foata normal form. 13/594 useless extension candidates. Maximal degree in co-relation 6914. Up to 509 conditions per place. [2021-03-25 12:13:37,154 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 249 selfloop transitions, 38 changer transitions 3/298 dead transitions. [2021-03-25 12:13:37,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 298 transitions, 6863 flow [2021-03-25 12:13:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 329 transitions. [2021-03-25 12:13:37,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3560606060606061 [2021-03-25 12:13:37,155 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 329 transitions. [2021-03-25 12:13:37,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 329 transitions. [2021-03-25 12:13:37,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:37,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 329 transitions. [2021-03-25 12:13:37,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.90909090909091) internal successors, (329), 11 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,156 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,156 INFO L185 Difference]: Start difference. First operand has 235 places, 296 transitions, 6263 flow. Second operand 11 states and 329 transitions. [2021-03-25 12:13:37,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 298 transitions, 6863 flow [2021-03-25 12:13:37,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 298 transitions, 6704 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:37,229 INFO L241 Difference]: Finished difference. Result has 238 places, 294 transitions, 6139 flow [2021-03-25 12:13:37,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=6106, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6139, PETRI_PLACES=238, PETRI_TRANSITIONS=294} [2021-03-25 12:13:37,230 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 191 predicate places. [2021-03-25 12:13:37,230 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:37,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 294 transitions, 6139 flow [2021-03-25 12:13:37,230 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 294 transitions, 6139 flow [2021-03-25 12:13:37,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 235 places, 294 transitions, 6139 flow [2021-03-25 12:13:37,278 INFO L129 PetriNetUnfolder]: 248/512 cut-off events. [2021-03-25 12:13:37,278 INFO L130 PetriNetUnfolder]: For 17756/17831 co-relation queries the response was YES. [2021-03-25 12:13:37,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5905 conditions, 512 events. 248/512 cut-off events. For 17756/17831 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2739 event pairs, 13 based on Foata normal form. 13/518 useless extension candidates. Maximal degree in co-relation 5815. Up to 234 conditions per place. [2021-03-25 12:13:37,284 INFO L142 LiptonReduction]: Number of co-enabled transitions 278 [2021-03-25 12:13:37,296 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:37,296 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:37,297 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 12:13:37,297 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 294 transitions, 6139 flow [2021-03-25 12:13:37,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,297 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:37,297 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:37,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-25 12:13:37,297 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:37,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:37,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1258114971, now seen corresponding path program 2 times [2021-03-25 12:13:37,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:37,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89037557] [2021-03-25 12:13:37,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:37,307 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:37,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:37,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:37,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:37,319 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:37,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:37,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:37,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,367 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:37,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:37,382 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:37,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:37,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89037557] [2021-03-25 12:13:37,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:37,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:37,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009292986] [2021-03-25 12:13:37,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:37,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:37,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:37,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:37,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 294 transitions, 6139 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:37,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:37,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:37,667 INFO L129 PetriNetUnfolder]: 287/578 cut-off events. [2021-03-25 12:13:37,668 INFO L130 PetriNetUnfolder]: For 19198/19228 co-relation queries the response was YES. [2021-03-25 12:13:37,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6928 conditions, 578 events. 287/578 cut-off events. For 19198/19228 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3062 event pairs, 28 based on Foata normal form. 13/589 useless extension candidates. Maximal degree in co-relation 6836. Up to 507 conditions per place. [2021-03-25 12:13:37,676 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 248 selfloop transitions, 36 changer transitions 4/296 dead transitions. [2021-03-25 12:13:37,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 296 transitions, 6730 flow [2021-03-25 12:13:37,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2021-03-25 12:13:37,677 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3595238095238095 [2021-03-25 12:13:37,677 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 302 transitions. [2021-03-25 12:13:37,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 302 transitions. [2021-03-25 12:13:37,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:37,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 302 transitions. [2021-03-25 12:13:37,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.2) internal successors, (302), 10 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,678 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,678 INFO L185 Difference]: Start difference. First operand has 235 places, 294 transitions, 6139 flow. Second operand 10 states and 302 transitions. [2021-03-25 12:13:37,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 296 transitions, 6730 flow [2021-03-25 12:13:37,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 296 transitions, 6623 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:13:37,778 INFO L241 Difference]: Finished difference. Result has 234 places, 291 transitions, 6055 flow [2021-03-25 12:13:37,778 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=6032, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6055, PETRI_PLACES=234, PETRI_TRANSITIONS=291} [2021-03-25 12:13:37,779 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 187 predicate places. [2021-03-25 12:13:37,779 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:37,779 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 291 transitions, 6055 flow [2021-03-25 12:13:37,779 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 291 transitions, 6055 flow [2021-03-25 12:13:37,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 229 places, 291 transitions, 6055 flow [2021-03-25 12:13:37,843 INFO L129 PetriNetUnfolder]: 245/506 cut-off events. [2021-03-25 12:13:37,843 INFO L130 PetriNetUnfolder]: For 17853/17942 co-relation queries the response was YES. [2021-03-25 12:13:37,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 506 events. 245/506 cut-off events. For 17853/17942 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2699 event pairs, 9 based on Foata normal form. 14/517 useless extension candidates. Maximal degree in co-relation 5774. Up to 231 conditions per place. [2021-03-25 12:13:37,854 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-25 12:13:37,869 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:37,869 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:37,869 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 12:13:37,869 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 291 transitions, 6055 flow [2021-03-25 12:13:37,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:37,869 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:37,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-25 12:13:37,870 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:37,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:37,870 INFO L82 PathProgramCache]: Analyzing trace with hash -663520528, now seen corresponding path program 1 times [2021-03-25 12:13:37,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:37,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20672525] [2021-03-25 12:13:37,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:37,880 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:37,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:37,884 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:37,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:37,891 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:37,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:37,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:37,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:37,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:37,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:37,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:37,951 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:37,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:37,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:37,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20672525] [2021-03-25 12:13:37,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:37,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:37,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138303822] [2021-03-25 12:13:37,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:37,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:37,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:37,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:37,954 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:37,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 291 transitions, 6055 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:37,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:37,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:37,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:38,314 INFO L129 PetriNetUnfolder]: 286/575 cut-off events. [2021-03-25 12:13:38,314 INFO L130 PetriNetUnfolder]: For 19212/19242 co-relation queries the response was YES. [2021-03-25 12:13:38,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6906 conditions, 575 events. 286/575 cut-off events. For 19212/19242 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3034 event pairs, 15 based on Foata normal form. 16/590 useless extension candidates. Maximal degree in co-relation 6814. Up to 490 conditions per place. [2021-03-25 12:13:38,322 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 234 selfloop transitions, 48 changer transitions 7/297 dead transitions. [2021-03-25 12:13:38,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 297 transitions, 6717 flow [2021-03-25 12:13:38,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 340 transitions. [2021-03-25 12:13:38,323 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36796536796536794 [2021-03-25 12:13:38,323 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 340 transitions. [2021-03-25 12:13:38,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 340 transitions. [2021-03-25 12:13:38,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:38,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 340 transitions. [2021-03-25 12:13:38,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,325 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,325 INFO L185 Difference]: Start difference. First operand has 229 places, 291 transitions, 6055 flow. Second operand 11 states and 340 transitions. [2021-03-25 12:13:38,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 297 transitions, 6717 flow [2021-03-25 12:13:38,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 297 transitions, 6637 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:38,424 INFO L241 Difference]: Finished difference. Result has 233 places, 287 transitions, 5997 flow [2021-03-25 12:13:38,424 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=5975, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5997, PETRI_PLACES=233, PETRI_TRANSITIONS=287} [2021-03-25 12:13:38,424 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 186 predicate places. [2021-03-25 12:13:38,424 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:38,425 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 287 transitions, 5997 flow [2021-03-25 12:13:38,425 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 287 transitions, 5997 flow [2021-03-25 12:13:38,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 287 transitions, 5997 flow [2021-03-25 12:13:38,491 INFO L129 PetriNetUnfolder]: 253/520 cut-off events. [2021-03-25 12:13:38,491 INFO L130 PetriNetUnfolder]: For 18305/18352 co-relation queries the response was YES. [2021-03-25 12:13:38,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6059 conditions, 520 events. 253/520 cut-off events. For 18305/18352 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2736 event pairs, 10 based on Foata normal form. 15/533 useless extension candidates. Maximal degree in co-relation 5969. Up to 239 conditions per place. [2021-03-25 12:13:38,500 INFO L142 LiptonReduction]: Number of co-enabled transitions 264 [2021-03-25 12:13:38,514 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:38,514 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:38,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 12:13:38,515 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 287 transitions, 5997 flow [2021-03-25 12:13:38,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:38,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:38,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-25 12:13:38,515 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:38,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:38,515 INFO L82 PathProgramCache]: Analyzing trace with hash 787001769, now seen corresponding path program 46 times [2021-03-25 12:13:38,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:38,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874928776] [2021-03-25 12:13:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:38,524 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:38,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:38,529 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:38,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:38,536 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:38,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:38,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:38,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:38,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:38,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:38,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:38,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:38,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:38,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:38,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:38,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:38,584 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:38,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:38,598 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:38,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:38,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874928776] [2021-03-25 12:13:38,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:38,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:38,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486551368] [2021-03-25 12:13:38,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:38,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:38,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:38,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:38,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:38,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 287 transitions, 5997 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:38,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:38,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:38,902 INFO L129 PetriNetUnfolder]: 284/567 cut-off events. [2021-03-25 12:13:38,902 INFO L130 PetriNetUnfolder]: For 19378/19408 co-relation queries the response was YES. [2021-03-25 12:13:38,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6862 conditions, 567 events. 284/567 cut-off events. For 19378/19408 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2949 event pairs, 15 based on Foata normal form. 16/582 useless extension candidates. Maximal degree in co-relation 6770. Up to 487 conditions per place. [2021-03-25 12:13:38,910 INFO L132 encePairwiseOnDemand]: 70/84 looper letters, 233 selfloop transitions, 46 changer transitions 4/291 dead transitions. [2021-03-25 12:13:38,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 291 transitions, 6586 flow [2021-03-25 12:13:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:13:38,911 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3678571428571429 [2021-03-25 12:13:38,912 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:13:38,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:13:38,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:38,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:13:38,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,913 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:38,913 INFO L185 Difference]: Start difference. First operand has 228 places, 287 transitions, 5997 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:13:38,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 291 transitions, 6586 flow [2021-03-25 12:13:39,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 291 transitions, 6478 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 12:13:39,017 INFO L241 Difference]: Finished difference. Result has 229 places, 284 transitions, 5944 flow [2021-03-25 12:13:39,017 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=5889, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5944, PETRI_PLACES=229, PETRI_TRANSITIONS=284} [2021-03-25 12:13:39,017 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 182 predicate places. [2021-03-25 12:13:39,017 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:39,017 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 284 transitions, 5944 flow [2021-03-25 12:13:39,018 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 284 transitions, 5944 flow [2021-03-25 12:13:39,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 284 transitions, 5944 flow [2021-03-25 12:13:39,081 INFO L129 PetriNetUnfolder]: 247/502 cut-off events. [2021-03-25 12:13:39,081 INFO L130 PetriNetUnfolder]: For 17460/17522 co-relation queries the response was YES. [2021-03-25 12:13:39,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5867 conditions, 502 events. 247/502 cut-off events. For 17460/17522 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2611 event pairs, 13 based on Foata normal form. 13/508 useless extension candidates. Maximal degree in co-relation 5779. Up to 235 conditions per place. [2021-03-25 12:13:39,090 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-25 12:13:39,104 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:39,104 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:39,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-03-25 12:13:39,105 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 284 transitions, 5944 flow [2021-03-25 12:13:39,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:39,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:39,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-25 12:13:39,105 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:39,105 INFO L82 PathProgramCache]: Analyzing trace with hash 109622441, now seen corresponding path program 47 times [2021-03-25 12:13:39,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:39,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813715545] [2021-03-25 12:13:39,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:39,116 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:39,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:39,121 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:39,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:39,128 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:39,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:39,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:39,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:39,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,178 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:39,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:39,192 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:39,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:39,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813715545] [2021-03-25 12:13:39,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:39,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:39,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367516402] [2021-03-25 12:13:39,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:39,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:39,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:39,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:39,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:39,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 284 transitions, 5944 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:39,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:39,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:39,481 INFO L129 PetriNetUnfolder]: 283/560 cut-off events. [2021-03-25 12:13:39,481 INFO L130 PetriNetUnfolder]: For 18975/19005 co-relation queries the response was YES. [2021-03-25 12:13:39,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6806 conditions, 560 events. 283/560 cut-off events. For 18975/19005 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2890 event pairs, 15 based on Foata normal form. 19/579 useless extension candidates. Maximal degree in co-relation 6716. Up to 479 conditions per place. [2021-03-25 12:13:39,487 INFO L132 encePairwiseOnDemand]: 70/84 looper letters, 229 selfloop transitions, 51 changer transitions 4/292 dead transitions. [2021-03-25 12:13:39,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 292 transitions, 6573 flow [2021-03-25 12:13:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:13:39,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.375 [2021-03-25 12:13:39,488 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:13:39,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:13:39,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:39,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:13:39,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,489 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,489 INFO L185 Difference]: Start difference. First operand has 223 places, 284 transitions, 5944 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:13:39,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 292 transitions, 6573 flow [2021-03-25 12:13:39,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 292 transitions, 6472 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:39,560 INFO L241 Difference]: Finished difference. Result has 228 places, 284 transitions, 5936 flow [2021-03-25 12:13:39,560 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=5845, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5936, PETRI_PLACES=228, PETRI_TRANSITIONS=284} [2021-03-25 12:13:39,560 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 181 predicate places. [2021-03-25 12:13:39,560 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:39,560 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 284 transitions, 5936 flow [2021-03-25 12:13:39,560 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 284 transitions, 5936 flow [2021-03-25 12:13:39,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 284 transitions, 5936 flow [2021-03-25 12:13:39,604 INFO L129 PetriNetUnfolder]: 241/484 cut-off events. [2021-03-25 12:13:39,604 INFO L130 PetriNetUnfolder]: For 17703/17772 co-relation queries the response was YES. [2021-03-25 12:13:39,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5723 conditions, 484 events. 241/484 cut-off events. For 17703/17772 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2444 event pairs, 9 based on Foata normal form. 16/497 useless extension candidates. Maximal degree in co-relation 5635. Up to 228 conditions per place. [2021-03-25 12:13:39,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-25 12:13:39,619 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:39,619 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:39,619 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 12:13:39,620 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 284 transitions, 5936 flow [2021-03-25 12:13:39,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:39,620 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:39,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-25 12:13:39,620 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:39,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:39,620 INFO L82 PathProgramCache]: Analyzing trace with hash -742093895, now seen corresponding path program 48 times [2021-03-25 12:13:39,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:39,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474780741] [2021-03-25 12:13:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:39,632 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:39,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:39,637 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:39,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:39,644 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:39,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:39,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:39,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:39,696 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:39,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:39,703 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:39,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:39,721 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:39,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:39,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474780741] [2021-03-25 12:13:39,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:39,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:39,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358169896] [2021-03-25 12:13:39,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:39,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:39,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:39,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:39,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:39,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 284 transitions, 5936 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:39,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:39,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:39,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:40,044 INFO L129 PetriNetUnfolder]: 282/547 cut-off events. [2021-03-25 12:13:40,044 INFO L130 PetriNetUnfolder]: For 18953/18983 co-relation queries the response was YES. [2021-03-25 12:13:40,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6725 conditions, 547 events. 282/547 cut-off events. For 18953/18983 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2715 event pairs, 30 based on Foata normal form. 13/558 useless extension candidates. Maximal degree in co-relation 6635. Up to 489 conditions per place. [2021-03-25 12:13:40,049 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 240 selfloop transitions, 34 changer transitions 3/285 dead transitions. [2021-03-25 12:13:40,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 285 transitions, 6494 flow [2021-03-25 12:13:40,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 328 transitions. [2021-03-25 12:13:40,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.354978354978355 [2021-03-25 12:13:40,050 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 328 transitions. [2021-03-25 12:13:40,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 328 transitions. [2021-03-25 12:13:40,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:40,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 328 transitions. [2021-03-25 12:13:40,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.818181818181817) internal successors, (328), 11 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,051 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 84.0) internal successors, (1008), 12 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,051 INFO L185 Difference]: Start difference. First operand has 225 places, 284 transitions, 5936 flow. Second operand 11 states and 328 transitions. [2021-03-25 12:13:40,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 285 transitions, 6494 flow [2021-03-25 12:13:40,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 285 transitions, 6371 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-25 12:13:40,118 INFO L241 Difference]: Finished difference. Result has 228 places, 281 transitions, 5781 flow [2021-03-25 12:13:40,119 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=5813, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5781, PETRI_PLACES=228, PETRI_TRANSITIONS=281} [2021-03-25 12:13:40,119 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 181 predicate places. [2021-03-25 12:13:40,119 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:40,119 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 281 transitions, 5781 flow [2021-03-25 12:13:40,119 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 281 transitions, 5781 flow [2021-03-25 12:13:40,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 226 places, 281 transitions, 5781 flow [2021-03-25 12:13:40,163 INFO L129 PetriNetUnfolder]: 253/499 cut-off events. [2021-03-25 12:13:40,163 INFO L130 PetriNetUnfolder]: For 18309/18390 co-relation queries the response was YES. [2021-03-25 12:13:40,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5885 conditions, 499 events. 253/499 cut-off events. For 18309/18390 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2495 event pairs, 11 based on Foata normal form. 14/509 useless extension candidates. Maximal degree in co-relation 5799. Up to 240 conditions per place. [2021-03-25 12:13:40,169 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-25 12:13:40,179 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:40,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:40,179 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-25 12:13:40,180 INFO L480 AbstractCegarLoop]: Abstraction has has 226 places, 281 transitions, 5781 flow [2021-03-25 12:13:40,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:40,180 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:40,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-25 12:13:40,180 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:40,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:40,180 INFO L82 PathProgramCache]: Analyzing trace with hash -108924077, now seen corresponding path program 49 times [2021-03-25 12:13:40,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:40,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545851018] [2021-03-25 12:13:40,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:40,190 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:40,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:40,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:40,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:40,202 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:40,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:40,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:40,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,262 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:40,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:40,276 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:40,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:40,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545851018] [2021-03-25 12:13:40,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:40,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:40,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950118799] [2021-03-25 12:13:40,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:40,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:40,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:40,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:40,280 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 84 [2021-03-25 12:13:40,281 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 281 transitions, 5781 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:40,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 84 [2021-03-25 12:13:40,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:40,608 INFO L129 PetriNetUnfolder]: 281/544 cut-off events. [2021-03-25 12:13:40,608 INFO L130 PetriNetUnfolder]: For 18884/18936 co-relation queries the response was YES. [2021-03-25 12:13:40,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6627 conditions, 544 events. 281/544 cut-off events. For 18884/18936 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2696 event pairs, 30 based on Foata normal form. 14/555 useless extension candidates. Maximal degree in co-relation 6539. Up to 487 conditions per place. [2021-03-25 12:13:40,615 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 239 selfloop transitions, 30 changer transitions 6/283 dead transitions. [2021-03-25 12:13:40,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 283 transitions, 6349 flow [2021-03-25 12:13:40,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:13:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:13:40,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 353 transitions. [2021-03-25 12:13:40,616 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3501984126984127 [2021-03-25 12:13:40,616 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 353 transitions. [2021-03-25 12:13:40,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 353 transitions. [2021-03-25 12:13:40,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:40,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 353 transitions. [2021-03-25 12:13:40,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.416666666666668) internal successors, (353), 12 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,618 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,618 INFO L185 Difference]: Start difference. First operand has 226 places, 281 transitions, 5781 flow. Second operand 12 states and 353 transitions. [2021-03-25 12:13:40,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 283 transitions, 6349 flow [2021-03-25 12:13:40,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 283 transitions, 6221 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-03-25 12:13:40,699 INFO L241 Difference]: Finished difference. Result has 227 places, 276 transitions, 5600 flow [2021-03-25 12:13:40,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=5653, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5600, PETRI_PLACES=227, PETRI_TRANSITIONS=276} [2021-03-25 12:13:40,700 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 180 predicate places. [2021-03-25 12:13:40,700 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:40,700 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 276 transitions, 5600 flow [2021-03-25 12:13:40,700 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 276 transitions, 5600 flow [2021-03-25 12:13:40,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 276 transitions, 5600 flow [2021-03-25 12:13:40,755 INFO L129 PetriNetUnfolder]: 242/474 cut-off events. [2021-03-25 12:13:40,756 INFO L130 PetriNetUnfolder]: For 16959/17053 co-relation queries the response was YES. [2021-03-25 12:13:40,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5573 conditions, 474 events. 242/474 cut-off events. For 16959/17053 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2350 event pairs, 10 based on Foata normal form. 14/480 useless extension candidates. Maximal degree in co-relation 5486. Up to 230 conditions per place. [2021-03-25 12:13:40,764 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-25 12:13:40,811 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:40,811 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:40,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 12:13:40,812 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 276 transitions, 5603 flow [2021-03-25 12:13:40,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:40,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:40,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-25 12:13:40,812 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:40,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:40,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2015222339, now seen corresponding path program 50 times [2021-03-25 12:13:40,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:40,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333655472] [2021-03-25 12:13:40,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:40,822 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:40,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:40,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:40,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:40,832 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:40,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:40,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:40,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:40,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:40,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,882 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:40,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:40,894 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:40,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:40,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333655472] [2021-03-25 12:13:40,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:40,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:40,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704461067] [2021-03-25 12:13:40,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:40,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:40,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:40,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:40,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 85 [2021-03-25 12:13:40,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 276 transitions, 5603 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:40,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:40,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 85 [2021-03-25 12:13:40,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:41,158 INFO L129 PetriNetUnfolder]: 280/540 cut-off events. [2021-03-25 12:13:41,158 INFO L130 PetriNetUnfolder]: For 18232/18262 co-relation queries the response was YES. [2021-03-25 12:13:41,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6530 conditions, 540 events. 280/540 cut-off events. For 18232/18262 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2653 event pairs, 25 based on Foata normal form. 16/555 useless extension candidates. Maximal degree in co-relation 6441. Up to 464 conditions per place. [2021-03-25 12:13:41,163 INFO L132 encePairwiseOnDemand]: 71/85 looper letters, 223 selfloop transitions, 44 changer transitions 4/279 dead transitions. [2021-03-25 12:13:41,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 279 transitions, 6157 flow [2021-03-25 12:13:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:41,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 308 transitions. [2021-03-25 12:13:41,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3623529411764706 [2021-03-25 12:13:41,164 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 308 transitions. [2021-03-25 12:13:41,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 308 transitions. [2021-03-25 12:13:41,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:41,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 308 transitions. [2021-03-25 12:13:41,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.8) internal successors, (308), 10 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,165 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,165 INFO L185 Difference]: Start difference. First operand has 220 places, 276 transitions, 5603 flow. Second operand 10 states and 308 transitions. [2021-03-25 12:13:41,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 279 transitions, 6157 flow [2021-03-25 12:13:41,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 279 transitions, 6014 flow, removed 20 selfloop flow, removed 12 redundant places. [2021-03-25 12:13:41,227 INFO L241 Difference]: Finished difference. Result has 218 places, 272 transitions, 5494 flow [2021-03-25 12:13:41,228 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=5460, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5494, PETRI_PLACES=218, PETRI_TRANSITIONS=272} [2021-03-25 12:13:41,228 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2021-03-25 12:13:41,228 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:41,228 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 272 transitions, 5494 flow [2021-03-25 12:13:41,228 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 272 transitions, 5494 flow [2021-03-25 12:13:41,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 272 transitions, 5494 flow [2021-03-25 12:13:41,267 INFO L129 PetriNetUnfolder]: 235/457 cut-off events. [2021-03-25 12:13:41,268 INFO L130 PetriNetUnfolder]: For 16228/16305 co-relation queries the response was YES. [2021-03-25 12:13:41,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5395 conditions, 457 events. 235/457 cut-off events. For 16228/16305 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2187 event pairs, 10 based on Foata normal form. 16/467 useless extension candidates. Maximal degree in co-relation 5310. Up to 215 conditions per place. [2021-03-25 12:13:41,272 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-25 12:13:41,281 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:41,281 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:41,281 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 12:13:41,281 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 272 transitions, 5494 flow [2021-03-25 12:13:41,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:41,281 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:41,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-25 12:13:41,281 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:41,282 INFO L82 PathProgramCache]: Analyzing trace with hash -54835138, now seen corresponding path program 1 times [2021-03-25 12:13:41,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:41,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435405136] [2021-03-25 12:13:41,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:41,300 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:41,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:41,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:41,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:41,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:41,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:41,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:41,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:41,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:41,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:41,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:41,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:41,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:41,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435405136] [2021-03-25 12:13:41,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:41,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:41,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048796935] [2021-03-25 12:13:41,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:41,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:41,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:41,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:41,375 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 85 [2021-03-25 12:13:41,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 272 transitions, 5494 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:41,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 85 [2021-03-25 12:13:41,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:41,632 INFO L129 PetriNetUnfolder]: 293/561 cut-off events. [2021-03-25 12:13:41,632 INFO L130 PetriNetUnfolder]: For 19075/19105 co-relation queries the response was YES. [2021-03-25 12:13:41,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6802 conditions, 561 events. 293/561 cut-off events. For 19075/19105 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2759 event pairs, 26 based on Foata normal form. 13/572 useless extension candidates. Maximal degree in co-relation 6715. Up to 434 conditions per place. [2021-03-25 12:13:41,637 INFO L132 encePairwiseOnDemand]: 72/85 looper letters, 153 selfloop transitions, 128 changer transitions 10/299 dead transitions. [2021-03-25 12:13:41,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 299 transitions, 6711 flow [2021-03-25 12:13:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 291 transitions. [2021-03-25 12:13:41,639 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3803921568627451 [2021-03-25 12:13:41,639 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 291 transitions. [2021-03-25 12:13:41,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 291 transitions. [2021-03-25 12:13:41,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:41,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 291 transitions. [2021-03-25 12:13:41,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.333333333333336) internal successors, (291), 9 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,640 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 85.0) internal successors, (850), 10 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,640 INFO L185 Difference]: Start difference. First operand has 214 places, 272 transitions, 5494 flow. Second operand 9 states and 291 transitions. [2021-03-25 12:13:41,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 299 transitions, 6711 flow [2021-03-25 12:13:41,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 299 transitions, 6581 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:41,723 INFO L241 Difference]: Finished difference. Result has 218 places, 284 transitions, 6093 flow [2021-03-25 12:13:41,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=5364, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6093, PETRI_PLACES=218, PETRI_TRANSITIONS=284} [2021-03-25 12:13:41,723 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2021-03-25 12:13:41,723 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:41,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 284 transitions, 6093 flow [2021-03-25 12:13:41,724 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 284 transitions, 6093 flow [2021-03-25 12:13:41,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 284 transitions, 6093 flow [2021-03-25 12:13:41,769 INFO L129 PetriNetUnfolder]: 247/484 cut-off events. [2021-03-25 12:13:41,769 INFO L130 PetriNetUnfolder]: For 19234/19295 co-relation queries the response was YES. [2021-03-25 12:13:41,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6015 conditions, 484 events. 247/484 cut-off events. For 19234/19295 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2418 event pairs, 10 based on Foata normal form. 12/492 useless extension candidates. Maximal degree in co-relation 5888. Up to 230 conditions per place. [2021-03-25 12:13:41,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-25 12:13:41,836 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:41,836 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:41,836 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 113 [2021-03-25 12:13:41,836 INFO L480 AbstractCegarLoop]: Abstraction has has 217 places, 284 transitions, 6097 flow [2021-03-25 12:13:41,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:41,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:41,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-25 12:13:41,837 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:41,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1171736326, now seen corresponding path program 2 times [2021-03-25 12:13:41,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:41,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102718953] [2021-03-25 12:13:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:41,851 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:41,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:41,855 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:41,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:41,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:41,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:41,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:41,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:41,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:13:41,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:41,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:41,904 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:41,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:41,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102718953] [2021-03-25 12:13:41,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:41,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:41,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018277425] [2021-03-25 12:13:41,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:41,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:41,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:41,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:41,908 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:41,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 284 transitions, 6097 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:41,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:41,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:41,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:42,102 INFO L129 PetriNetUnfolder]: 288/545 cut-off events. [2021-03-25 12:13:42,102 INFO L130 PetriNetUnfolder]: For 21364/21394 co-relation queries the response was YES. [2021-03-25 12:13:42,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7032 conditions, 545 events. 288/545 cut-off events. For 21364/21394 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2640 event pairs, 20 based on Foata normal form. 13/555 useless extension candidates. Maximal degree in co-relation 6901. Up to 477 conditions per place. [2021-03-25 12:13:42,108 INFO L132 encePairwiseOnDemand]: 73/86 looper letters, 219 selfloop transitions, 55 changer transitions 7/289 dead transitions. [2021-03-25 12:13:42,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 289 transitions, 6735 flow [2021-03-25 12:13:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:42,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2021-03-25 12:13:42,108 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38205980066445183 [2021-03-25 12:13:42,109 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 230 transitions. [2021-03-25 12:13:42,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 230 transitions. [2021-03-25 12:13:42,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:42,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 230 transitions. [2021-03-25 12:13:42,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.857142857142854) internal successors, (230), 7 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,109 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 86.0) internal successors, (688), 8 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,109 INFO L185 Difference]: Start difference. First operand has 217 places, 284 transitions, 6097 flow. Second operand 7 states and 230 transitions. [2021-03-25 12:13:42,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 289 transitions, 6735 flow [2021-03-25 12:13:42,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 289 transitions, 6538 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:42,180 INFO L241 Difference]: Finished difference. Result has 218 places, 278 transitions, 6004 flow [2021-03-25 12:13:42,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5900, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6004, PETRI_PLACES=218, PETRI_TRANSITIONS=278} [2021-03-25 12:13:42,180 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2021-03-25 12:13:42,180 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:42,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 278 transitions, 6004 flow [2021-03-25 12:13:42,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 278 transitions, 6004 flow [2021-03-25 12:13:42,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 278 transitions, 6004 flow [2021-03-25 12:13:42,228 INFO L129 PetriNetUnfolder]: 263/519 cut-off events. [2021-03-25 12:13:42,228 INFO L130 PetriNetUnfolder]: For 19616/19717 co-relation queries the response was YES. [2021-03-25 12:13:42,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6244 conditions, 519 events. 263/519 cut-off events. For 19616/19717 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2675 event pairs, 4 based on Foata normal form. 12/524 useless extension candidates. Maximal degree in co-relation 6117. Up to 244 conditions per place. [2021-03-25 12:13:42,235 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-25 12:13:42,251 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:42,251 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:42,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-25 12:13:42,251 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 278 transitions, 6004 flow [2021-03-25 12:13:42,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:42,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:42,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-25 12:13:42,252 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:42,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:42,252 INFO L82 PathProgramCache]: Analyzing trace with hash 500041859, now seen corresponding path program 51 times [2021-03-25 12:13:42,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:42,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460246302] [2021-03-25 12:13:42,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:42,262 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:42,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:42,267 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:42,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:42,273 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:42,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:42,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:42,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:42,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:42,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:42,341 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:42,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:42,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460246302] [2021-03-25 12:13:42,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:42,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:42,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930187296] [2021-03-25 12:13:42,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:42,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:42,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:42,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:42,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:42,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 278 transitions, 6004 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:42,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:42,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:42,607 INFO L129 PetriNetUnfolder]: 286/537 cut-off events. [2021-03-25 12:13:42,608 INFO L130 PetriNetUnfolder]: For 21251/21287 co-relation queries the response was YES. [2021-03-25 12:13:42,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6933 conditions, 537 events. 286/537 cut-off events. For 21251/21287 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2562 event pairs, 27 based on Foata normal form. 22/558 useless extension candidates. Maximal degree in co-relation 6802. Up to 469 conditions per place. [2021-03-25 12:13:42,613 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 225 selfloop transitions, 40 changer transitions 8/281 dead transitions. [2021-03-25 12:13:42,613 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 281 transitions, 6562 flow [2021-03-25 12:13:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:42,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:42,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 12:13:42,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3546511627906977 [2021-03-25 12:13:42,614 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 12:13:42,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 12:13:42,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:42,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 12:13:42,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,615 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,615 INFO L185 Difference]: Start difference. First operand has 214 places, 278 transitions, 6004 flow. Second operand 10 states and 305 transitions. [2021-03-25 12:13:42,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 281 transitions, 6562 flow [2021-03-25 12:13:42,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 281 transitions, 6158 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 12:13:42,683 INFO L241 Difference]: Finished difference. Result has 212 places, 270 transitions, 5462 flow [2021-03-25 12:13:42,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5600, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5462, PETRI_PLACES=212, PETRI_TRANSITIONS=270} [2021-03-25 12:13:42,684 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 165 predicate places. [2021-03-25 12:13:42,684 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:42,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 270 transitions, 5462 flow [2021-03-25 12:13:42,684 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 270 transitions, 5462 flow [2021-03-25 12:13:42,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 270 transitions, 5462 flow [2021-03-25 12:13:42,724 INFO L129 PetriNetUnfolder]: 245/479 cut-off events. [2021-03-25 12:13:42,725 INFO L130 PetriNetUnfolder]: For 17156/17194 co-relation queries the response was YES. [2021-03-25 12:13:42,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5644 conditions, 479 events. 245/479 cut-off events. For 17156/17194 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2364 event pairs, 5 based on Foata normal form. 14/490 useless extension candidates. Maximal degree in co-relation 5559. Up to 230 conditions per place. [2021-03-25 12:13:42,730 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 12:13:42,738 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:42,738 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:42,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-25 12:13:42,739 INFO L480 AbstractCegarLoop]: Abstraction has has 208 places, 270 transitions, 5462 flow [2021-03-25 12:13:42,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:42,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:42,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-25 12:13:42,740 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:42,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:42,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1972349031, now seen corresponding path program 52 times [2021-03-25 12:13:42,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:42,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554232196] [2021-03-25 12:13:42,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:42,750 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:42,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:42,755 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:42,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:42,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:42,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:42,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:42,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:42,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:42,803 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:42,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:42,809 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:42,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:42,823 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:42,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:42,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554232196] [2021-03-25 12:13:42,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:42,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:42,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330122323] [2021-03-25 12:13:42,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:42,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:42,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:42,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:42,826 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:42,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 270 transitions, 5462 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:42,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:42,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:42,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:43,089 INFO L129 PetriNetUnfolder]: 288/539 cut-off events. [2021-03-25 12:13:43,090 INFO L130 PetriNetUnfolder]: For 19961/19984 co-relation queries the response was YES. [2021-03-25 12:13:43,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6756 conditions, 539 events. 288/539 cut-off events. For 19961/19984 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2558 event pairs, 23 based on Foata normal form. 14/553 useless extension candidates. Maximal degree in co-relation 6669. Up to 454 conditions per place. [2021-03-25 12:13:43,095 INFO L132 encePairwiseOnDemand]: 74/86 looper letters, 219 selfloop transitions, 55 changer transitions 2/284 dead transitions. [2021-03-25 12:13:43,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 284 transitions, 6270 flow [2021-03-25 12:13:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:43,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:13:43,096 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.363953488372093 [2021-03-25 12:13:43,096 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:13:43,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:13:43,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:43,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:13:43,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,097 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,097 INFO L185 Difference]: Start difference. First operand has 208 places, 270 transitions, 5462 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:13:43,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 284 transitions, 6270 flow [2021-03-25 12:13:43,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 284 transitions, 6083 flow, removed 8 selfloop flow, removed 19 redundant places. [2021-03-25 12:13:43,162 INFO L241 Difference]: Finished difference. Result has 202 places, 275 transitions, 5587 flow [2021-03-25 12:13:43,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5281, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5587, PETRI_PLACES=202, PETRI_TRANSITIONS=275} [2021-03-25 12:13:43,163 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 155 predicate places. [2021-03-25 12:13:43,163 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:43,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 275 transitions, 5587 flow [2021-03-25 12:13:43,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 275 transitions, 5587 flow [2021-03-25 12:13:43,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 275 transitions, 5587 flow [2021-03-25 12:13:43,206 INFO L129 PetriNetUnfolder]: 250/494 cut-off events. [2021-03-25 12:13:43,207 INFO L130 PetriNetUnfolder]: For 18255/18322 co-relation queries the response was YES. [2021-03-25 12:13:43,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5854 conditions, 494 events. 250/494 cut-off events. For 18255/18322 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2464 event pairs, 13 based on Foata normal form. 13/502 useless extension candidates. Maximal degree in co-relation 5771. Up to 239 conditions per place. [2021-03-25 12:13:43,212 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-25 12:13:43,221 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:43,221 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:43,221 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 12:13:43,222 INFO L480 AbstractCegarLoop]: Abstraction has has 201 places, 275 transitions, 5587 flow [2021-03-25 12:13:43,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:43,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:43,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-25 12:13:43,222 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:43,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1673966569, now seen corresponding path program 53 times [2021-03-25 12:13:43,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:43,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431074647] [2021-03-25 12:13:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:43,247 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:43,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:43,252 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:43,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:43,258 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:43,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:43,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:43,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:43,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,338 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:43,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:43,356 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:43,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:43,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431074647] [2021-03-25 12:13:43,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:43,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:43,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402834418] [2021-03-25 12:13:43,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:43,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:43,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:43,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:43,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:43,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 275 transitions, 5587 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:43,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:43,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:43,666 INFO L129 PetriNetUnfolder]: 288/547 cut-off events. [2021-03-25 12:13:43,666 INFO L130 PetriNetUnfolder]: For 20051/20096 co-relation queries the response was YES. [2021-03-25 12:13:43,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6867 conditions, 547 events. 288/547 cut-off events. For 20051/20096 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2646 event pairs, 16 based on Foata normal form. 19/565 useless extension candidates. Maximal degree in co-relation 6782. Up to 446 conditions per place. [2021-03-25 12:13:43,671 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 202 selfloop transitions, 68 changer transitions 6/284 dead transitions. [2021-03-25 12:13:43,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 284 transitions, 6291 flow [2021-03-25 12:13:43,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:13:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:13:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 400 transitions. [2021-03-25 12:13:43,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35778175313059035 [2021-03-25 12:13:43,672 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 400 transitions. [2021-03-25 12:13:43,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 400 transitions. [2021-03-25 12:13:43,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:43,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 400 transitions. [2021-03-25 12:13:43,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.76923076923077) internal successors, (400), 13 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 86.0) internal successors, (1204), 14 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,674 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 86.0) internal successors, (1204), 14 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,674 INFO L185 Difference]: Start difference. First operand has 201 places, 275 transitions, 5587 flow. Second operand 13 states and 400 transitions. [2021-03-25 12:13:43,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 284 transitions, 6291 flow [2021-03-25 12:13:43,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 284 transitions, 6111 flow, removed 69 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:43,747 INFO L241 Difference]: Finished difference. Result has 211 places, 273 transitions, 5583 flow [2021-03-25 12:13:43,747 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5455, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5583, PETRI_PLACES=211, PETRI_TRANSITIONS=273} [2021-03-25 12:13:43,747 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 164 predicate places. [2021-03-25 12:13:43,747 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:43,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 273 transitions, 5583 flow [2021-03-25 12:13:43,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 273 transitions, 5583 flow [2021-03-25 12:13:43,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 273 transitions, 5583 flow [2021-03-25 12:13:43,794 INFO L129 PetriNetUnfolder]: 259/522 cut-off events. [2021-03-25 12:13:43,794 INFO L130 PetriNetUnfolder]: For 18497/18533 co-relation queries the response was YES. [2021-03-25 12:13:43,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6142 conditions, 522 events. 259/522 cut-off events. For 18497/18533 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2669 event pairs, 4 based on Foata normal form. 6/526 useless extension candidates. Maximal degree in co-relation 6055. Up to 237 conditions per place. [2021-03-25 12:13:43,800 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 12:13:43,809 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:43,809 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:43,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-25 12:13:43,810 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 273 transitions, 5583 flow [2021-03-25 12:13:43,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:43,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:43,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-25 12:13:43,810 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:43,810 INFO L82 PathProgramCache]: Analyzing trace with hash 926442653, now seen corresponding path program 54 times [2021-03-25 12:13:43,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:43,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530754000] [2021-03-25 12:13:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:43,820 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:43,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:43,824 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:43,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:43,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:43,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:43,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:43,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:43,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:43,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:43,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,881 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:43,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:43,895 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:43,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:43,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530754000] [2021-03-25 12:13:43,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:43,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:43,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112413600] [2021-03-25 12:13:43,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:43,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:43,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:43,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:43,899 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:43,899 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 273 transitions, 5583 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:43,899 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:43,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:43,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:44,150 INFO L129 PetriNetUnfolder]: 294/558 cut-off events. [2021-03-25 12:13:44,151 INFO L130 PetriNetUnfolder]: For 20789/20834 co-relation queries the response was YES. [2021-03-25 12:13:44,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7069 conditions, 558 events. 294/558 cut-off events. For 20789/20834 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2766 event pairs, 26 based on Foata normal form. 17/573 useless extension candidates. Maximal degree in co-relation 6980. Up to 496 conditions per place. [2021-03-25 12:13:44,156 INFO L132 encePairwiseOnDemand]: 74/86 looper letters, 246 selfloop transitions, 30 changer transitions 5/289 dead transitions. [2021-03-25 12:13:44,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 289 transitions, 6515 flow [2021-03-25 12:13:44,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 332 transitions. [2021-03-25 12:13:44,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35095137420718814 [2021-03-25 12:13:44,157 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 332 transitions. [2021-03-25 12:13:44,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 332 transitions. [2021-03-25 12:13:44,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:44,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 332 transitions. [2021-03-25 12:13:44,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.181818181818183) internal successors, (332), 11 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,158 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,158 INFO L185 Difference]: Start difference. First operand has 205 places, 273 transitions, 5583 flow. Second operand 11 states and 332 transitions. [2021-03-25 12:13:44,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 289 transitions, 6515 flow [2021-03-25 12:13:44,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 289 transitions, 6369 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:44,232 INFO L241 Difference]: Finished difference. Result has 210 places, 279 transitions, 5702 flow [2021-03-25 12:13:44,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5437, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5702, PETRI_PLACES=210, PETRI_TRANSITIONS=279} [2021-03-25 12:13:44,233 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 163 predicate places. [2021-03-25 12:13:44,233 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:44,233 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 279 transitions, 5702 flow [2021-03-25 12:13:44,233 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 279 transitions, 5702 flow [2021-03-25 12:13:44,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 206 places, 279 transitions, 5702 flow [2021-03-25 12:13:44,278 INFO L129 PetriNetUnfolder]: 252/495 cut-off events. [2021-03-25 12:13:44,278 INFO L130 PetriNetUnfolder]: For 20382/20512 co-relation queries the response was YES. [2021-03-25 12:13:44,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6066 conditions, 495 events. 252/495 cut-off events. For 20382/20512 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2456 event pairs, 9 based on Foata normal form. 17/506 useless extension candidates. Maximal degree in co-relation 5977. Up to 240 conditions per place. [2021-03-25 12:13:44,284 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-25 12:13:44,293 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:44,293 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:44,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-25 12:13:44,293 INFO L480 AbstractCegarLoop]: Abstraction has has 206 places, 279 transitions, 5702 flow [2021-03-25 12:13:44,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:44,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:44,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-25 12:13:44,294 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:44,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:44,294 INFO L82 PathProgramCache]: Analyzing trace with hash -548000813, now seen corresponding path program 55 times [2021-03-25 12:13:44,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:44,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095889337] [2021-03-25 12:13:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:44,309 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:44,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:44,314 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:44,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:44,321 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:44,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:44,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:44,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:44,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:44,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:44,357 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:44,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:44,370 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:44,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:44,384 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:44,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:44,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095889337] [2021-03-25 12:13:44,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:44,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:44,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14788435] [2021-03-25 12:13:44,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:44,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:44,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:44,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:44,388 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:44,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 279 transitions, 5702 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:44,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:44,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:44,658 INFO L129 PetriNetUnfolder]: 294/559 cut-off events. [2021-03-25 12:13:44,658 INFO L130 PetriNetUnfolder]: For 22546/22561 co-relation queries the response was YES. [2021-03-25 12:13:44,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7164 conditions, 559 events. 294/559 cut-off events. For 22546/22561 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2776 event pairs, 24 based on Foata normal form. 12/571 useless extension candidates. Maximal degree in co-relation 7073. Up to 468 conditions per place. [2021-03-25 12:13:44,664 INFO L132 encePairwiseOnDemand]: 74/86 looper letters, 228 selfloop transitions, 53 changer transitions 3/292 dead transitions. [2021-03-25 12:13:44,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 292 transitions, 6494 flow [2021-03-25 12:13:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2021-03-25 12:13:44,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36046511627906974 [2021-03-25 12:13:44,665 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 310 transitions. [2021-03-25 12:13:44,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 310 transitions. [2021-03-25 12:13:44,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:44,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 310 transitions. [2021-03-25 12:13:44,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,666 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,666 INFO L185 Difference]: Start difference. First operand has 206 places, 279 transitions, 5702 flow. Second operand 10 states and 310 transitions. [2021-03-25 12:13:44,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 292 transitions, 6494 flow [2021-03-25 12:13:44,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 292 transitions, 6316 flow, removed 76 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:44,739 INFO L241 Difference]: Finished difference. Result has 212 places, 283 transitions, 5794 flow [2021-03-25 12:13:44,739 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5528, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5794, PETRI_PLACES=212, PETRI_TRANSITIONS=283} [2021-03-25 12:13:44,739 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 165 predicate places. [2021-03-25 12:13:44,739 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:44,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 283 transitions, 5794 flow [2021-03-25 12:13:44,739 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 283 transitions, 5794 flow [2021-03-25 12:13:44,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 283 transitions, 5794 flow [2021-03-25 12:13:44,786 INFO L129 PetriNetUnfolder]: 251/499 cut-off events. [2021-03-25 12:13:44,787 INFO L130 PetriNetUnfolder]: For 19678/19853 co-relation queries the response was YES. [2021-03-25 12:13:44,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6092 conditions, 499 events. 251/499 cut-off events. For 19678/19853 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2486 event pairs, 9 based on Foata normal form. 18/514 useless extension candidates. Maximal degree in co-relation 6002. Up to 233 conditions per place. [2021-03-25 12:13:44,797 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-25 12:13:44,810 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:44,811 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:44,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 12:13:44,811 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 283 transitions, 5794 flow [2021-03-25 12:13:44,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,811 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:44,811 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:44,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-25 12:13:44,811 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:44,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1327471185, now seen corresponding path program 56 times [2021-03-25 12:13:44,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:44,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647136516] [2021-03-25 12:13:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:44,821 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:44,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:44,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:44,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:44,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:44,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:44,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:44,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:44,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:44,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:44,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:44,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:44,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:44,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:44,912 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:44,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:44,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647136516] [2021-03-25 12:13:44,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:44,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:44,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42599115] [2021-03-25 12:13:44,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:44,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:44,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:44,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:44,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:44,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 283 transitions, 5794 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:44,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:44,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:44,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:45,299 INFO L129 PetriNetUnfolder]: 293/551 cut-off events. [2021-03-25 12:13:45,299 INFO L130 PetriNetUnfolder]: For 21691/21714 co-relation queries the response was YES. [2021-03-25 12:13:45,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7136 conditions, 551 events. 293/551 cut-off events. For 21691/21714 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2647 event pairs, 22 based on Foata normal form. 14/565 useless extension candidates. Maximal degree in co-relation 7044. Up to 438 conditions per place. [2021-03-25 12:13:45,305 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 198 selfloop transitions, 85 changer transitions 3/294 dead transitions. [2021-03-25 12:13:45,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 294 transitions, 6557 flow [2021-03-25 12:13:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:45,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 350 transitions. [2021-03-25 12:13:45,306 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3699788583509514 [2021-03-25 12:13:45,306 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 350 transitions. [2021-03-25 12:13:45,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 350 transitions. [2021-03-25 12:13:45,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:45,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 350 transitions. [2021-03-25 12:13:45,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,307 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,307 INFO L185 Difference]: Start difference. First operand has 210 places, 283 transitions, 5794 flow. Second operand 11 states and 350 transitions. [2021-03-25 12:13:45,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 294 transitions, 6557 flow [2021-03-25 12:13:45,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 294 transitions, 6379 flow, removed 58 selfloop flow, removed 7 redundant places. [2021-03-25 12:13:45,385 INFO L241 Difference]: Finished difference. Result has 217 places, 285 transitions, 5954 flow [2021-03-25 12:13:45,385 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5622, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5954, PETRI_PLACES=217, PETRI_TRANSITIONS=285} [2021-03-25 12:13:45,385 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 170 predicate places. [2021-03-25 12:13:45,385 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:45,385 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 285 transitions, 5954 flow [2021-03-25 12:13:45,385 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 285 transitions, 5954 flow [2021-03-25 12:13:45,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 285 transitions, 5954 flow [2021-03-25 12:13:45,436 INFO L129 PetriNetUnfolder]: 259/515 cut-off events. [2021-03-25 12:13:45,436 INFO L130 PetriNetUnfolder]: For 19520/19550 co-relation queries the response was YES. [2021-03-25 12:13:45,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6382 conditions, 515 events. 259/515 cut-off events. For 19520/19550 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2541 event pairs, 9 based on Foata normal form. 8/522 useless extension candidates. Maximal degree in co-relation 6250. Up to 228 conditions per place. [2021-03-25 12:13:45,442 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-25 12:13:45,452 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:45,452 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:45,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-25 12:13:45,453 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 285 transitions, 5954 flow [2021-03-25 12:13:45,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:45,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:45,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-25 12:13:45,453 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:45,453 INFO L82 PathProgramCache]: Analyzing trace with hash -539416779, now seen corresponding path program 57 times [2021-03-25 12:13:45,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:45,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198481160] [2021-03-25 12:13:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:45,462 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:45,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:45,467 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:45,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:45,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:45,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:45,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:45,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:45,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:45,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:45,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:45,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:45,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:45,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:45,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:45,533 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:45,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:45,546 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:45,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:45,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198481160] [2021-03-25 12:13:45,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:45,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:45,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968233653] [2021-03-25 12:13:45,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:45,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:45,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:45,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:45,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:45,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 285 transitions, 5954 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:45,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:45,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:45,832 INFO L129 PetriNetUnfolder]: 292/545 cut-off events. [2021-03-25 12:13:45,832 INFO L130 PetriNetUnfolder]: For 21335/21358 co-relation queries the response was YES. [2021-03-25 12:13:45,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7142 conditions, 545 events. 292/545 cut-off events. For 21335/21358 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2587 event pairs, 32 based on Foata normal form. 14/559 useless extension candidates. Maximal degree in co-relation 7006. Up to 467 conditions per place. [2021-03-25 12:13:45,838 INFO L132 encePairwiseOnDemand]: 74/86 looper letters, 230 selfloop transitions, 48 changer transitions 5/291 dead transitions. [2021-03-25 12:13:45,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 291 transitions, 6545 flow [2021-03-25 12:13:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:45,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:45,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 335 transitions. [2021-03-25 12:13:45,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35412262156448204 [2021-03-25 12:13:45,839 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 335 transitions. [2021-03-25 12:13:45,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 335 transitions. [2021-03-25 12:13:45,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:45,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 335 transitions. [2021-03-25 12:13:45,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.454545454545453) internal successors, (335), 11 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,841 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:45,841 INFO L185 Difference]: Start difference. First operand has 216 places, 285 transitions, 5954 flow. Second operand 11 states and 335 transitions. [2021-03-25 12:13:45,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 291 transitions, 6545 flow [2021-03-25 12:13:45,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 291 transitions, 6292 flow, removed 46 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:45,919 INFO L241 Difference]: Finished difference. Result has 218 places, 280 transitions, 5718 flow [2021-03-25 12:13:45,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5701, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5718, PETRI_PLACES=218, PETRI_TRANSITIONS=280} [2021-03-25 12:13:45,919 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 171 predicate places. [2021-03-25 12:13:45,919 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:45,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 280 transitions, 5718 flow [2021-03-25 12:13:45,919 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 280 transitions, 5718 flow [2021-03-25 12:13:45,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 280 transitions, 5718 flow [2021-03-25 12:13:45,983 INFO L129 PetriNetUnfolder]: 251/493 cut-off events. [2021-03-25 12:13:45,983 INFO L130 PetriNetUnfolder]: For 18805/18946 co-relation queries the response was YES. [2021-03-25 12:13:45,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5945 conditions, 493 events. 251/493 cut-off events. For 18805/18946 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2429 event pairs, 6 based on Foata normal form. 17/507 useless extension candidates. Maximal degree in co-relation 5854. Up to 227 conditions per place. [2021-03-25 12:13:45,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 12:13:46,005 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:46,005 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:46,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-03-25 12:13:46,006 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 280 transitions, 5718 flow [2021-03-25 12:13:46,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:46,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:46,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-25 12:13:46,006 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:46,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:46,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1326047077, now seen corresponding path program 58 times [2021-03-25 12:13:46,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:46,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024833733] [2021-03-25 12:13:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:46,015 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:46,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:46,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:46,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:46,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:46,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:46,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:46,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:46,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:46,071 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:46,085 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:46,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:46,098 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:46,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:46,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:46,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024833733] [2021-03-25 12:13:46,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:46,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:46,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448056049] [2021-03-25 12:13:46,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:46,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:46,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:46,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:46,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 86 [2021-03-25 12:13:46,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 280 transitions, 5718 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:46,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 86 [2021-03-25 12:13:46,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:46,463 INFO L129 PetriNetUnfolder]: 300/574 cut-off events. [2021-03-25 12:13:46,463 INFO L130 PetriNetUnfolder]: For 22565/22609 co-relation queries the response was YES. [2021-03-25 12:13:46,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7369 conditions, 574 events. 300/574 cut-off events. For 22565/22609 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2824 event pairs, 28 based on Foata normal form. 20/593 useless extension candidates. Maximal degree in co-relation 7276. Up to 436 conditions per place. [2021-03-25 12:13:46,469 INFO L132 encePairwiseOnDemand]: 74/86 looper letters, 194 selfloop transitions, 99 changer transitions 2/303 dead transitions. [2021-03-25 12:13:46,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 303 transitions, 6938 flow [2021-03-25 12:13:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 355 transitions. [2021-03-25 12:13:46,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3752642706131078 [2021-03-25 12:13:46,470 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 355 transitions. [2021-03-25 12:13:46,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 355 transitions. [2021-03-25 12:13:46,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:46,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 355 transitions. [2021-03-25 12:13:46,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.27272727272727) internal successors, (355), 11 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,471 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 86.0) internal successors, (1032), 12 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,472 INFO L185 Difference]: Start difference. First operand has 214 places, 280 transitions, 5718 flow. Second operand 11 states and 355 transitions. [2021-03-25 12:13:46,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 303 transitions, 6938 flow [2021-03-25 12:13:46,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 303 transitions, 6738 flow, removed 16 selfloop flow, removed 13 redundant places. [2021-03-25 12:13:46,557 INFO L241 Difference]: Finished difference. Result has 214 places, 293 transitions, 6263 flow [2021-03-25 12:13:46,557 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=5540, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6263, PETRI_PLACES=214, PETRI_TRANSITIONS=293} [2021-03-25 12:13:46,558 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 167 predicate places. [2021-03-25 12:13:46,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:46,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 214 places, 293 transitions, 6263 flow [2021-03-25 12:13:46,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 214 places, 293 transitions, 6263 flow [2021-03-25 12:13:46,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 214 places, 293 transitions, 6263 flow [2021-03-25 12:13:46,611 INFO L129 PetriNetUnfolder]: 264/526 cut-off events. [2021-03-25 12:13:46,612 INFO L130 PetriNetUnfolder]: For 21531/21562 co-relation queries the response was YES. [2021-03-25 12:13:46,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6497 conditions, 526 events. 264/526 cut-off events. For 21531/21562 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2704 event pairs, 8 based on Foata normal form. 10/535 useless extension candidates. Maximal degree in co-relation 6370. Up to 246 conditions per place. [2021-03-25 12:13:46,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 12:13:46,662 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:13:46,662 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:46,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-03-25 12:13:46,662 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 293 transitions, 6300 flow [2021-03-25 12:13:46,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:46,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:46,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-25 12:13:46,663 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:46,663 INFO L82 PathProgramCache]: Analyzing trace with hash -618681589, now seen corresponding path program 59 times [2021-03-25 12:13:46,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:46,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194556921] [2021-03-25 12:13:46,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:46,688 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:46,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:46,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:46,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:46,700 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:46,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:46,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:46,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:46,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:46,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:46,725 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:46,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:46,728 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:46,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:46,740 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:46,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:46,752 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:46,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:46,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:46,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194556921] [2021-03-25 12:13:46,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:46,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:46,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894240420] [2021-03-25 12:13:46,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:46,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:46,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:46,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:46,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 87 [2021-03-25 12:13:46,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 293 transitions, 6300 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:46,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:46,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 87 [2021-03-25 12:13:46,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:47,018 INFO L129 PetriNetUnfolder]: 308/596 cut-off events. [2021-03-25 12:13:47,018 INFO L130 PetriNetUnfolder]: For 24176/24221 co-relation queries the response was YES. [2021-03-25 12:13:47,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7724 conditions, 596 events. 308/596 cut-off events. For 24176/24221 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3020 event pairs, 36 based on Foata normal form. 11/604 useless extension candidates. Maximal degree in co-relation 7593. Up to 524 conditions per place. [2021-03-25 12:13:47,025 INFO L132 encePairwiseOnDemand]: 74/87 looper letters, 264 selfloop transitions, 31 changer transitions 5/308 dead transitions. [2021-03-25 12:13:47,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 308 transitions, 7371 flow [2021-03-25 12:13:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:47,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2021-03-25 12:13:47,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34942528735632183 [2021-03-25 12:13:47,026 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 304 transitions. [2021-03-25 12:13:47,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 304 transitions. [2021-03-25 12:13:47,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:47,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 304 transitions. [2021-03-25 12:13:47,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.4) internal successors, (304), 10 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,027 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 87.0) internal successors, (957), 11 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,027 INFO L185 Difference]: Start difference. First operand has 214 places, 293 transitions, 6300 flow. Second operand 10 states and 304 transitions. [2021-03-25 12:13:47,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 308 transitions, 7371 flow [2021-03-25 12:13:47,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 308 transitions, 6894 flow, removed 181 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:47,124 INFO L241 Difference]: Finished difference. Result has 222 places, 300 transitions, 6146 flow [2021-03-25 12:13:47,124 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=5823, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6146, PETRI_PLACES=222, PETRI_TRANSITIONS=300} [2021-03-25 12:13:47,125 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 175 predicate places. [2021-03-25 12:13:47,125 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:47,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 300 transitions, 6146 flow [2021-03-25 12:13:47,125 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 300 transitions, 6146 flow [2021-03-25 12:13:47,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 218 places, 300 transitions, 6146 flow [2021-03-25 12:13:47,181 INFO L129 PetriNetUnfolder]: 272/541 cut-off events. [2021-03-25 12:13:47,181 INFO L130 PetriNetUnfolder]: For 22357/22474 co-relation queries the response was YES. [2021-03-25 12:13:47,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6681 conditions, 541 events. 272/541 cut-off events. For 22357/22474 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2769 event pairs, 12 based on Foata normal form. 13/549 useless extension candidates. Maximal degree in co-relation 6587. Up to 241 conditions per place. [2021-03-25 12:13:47,189 INFO L142 LiptonReduction]: Number of co-enabled transitions 286 [2021-03-25 12:13:47,200 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:47,200 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:47,200 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 12:13:47,200 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 300 transitions, 6146 flow [2021-03-25 12:13:47,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:47,200 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:47,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-25 12:13:47,201 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:47,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:47,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1307389372, now seen corresponding path program 1 times [2021-03-25 12:13:47,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:47,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794296861] [2021-03-25 12:13:47,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:47,224 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:47,229 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:47,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:47,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:47,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:47,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:47,255 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:13:47,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:13:47,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:47,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:47,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:47,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:47,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:47,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794296861] [2021-03-25 12:13:47,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:47,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:47,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501908998] [2021-03-25 12:13:47,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:47,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:47,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:47,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:47,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 87 [2021-03-25 12:13:47,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 300 transitions, 6146 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:47,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 87 [2021-03-25 12:13:47,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:47,503 INFO L129 PetriNetUnfolder]: 312/602 cut-off events. [2021-03-25 12:13:47,503 INFO L130 PetriNetUnfolder]: For 23702/23725 co-relation queries the response was YES. [2021-03-25 12:13:47,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7589 conditions, 602 events. 312/602 cut-off events. For 23702/23725 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3031 event pairs, 34 based on Foata normal form. 12/613 useless extension candidates. Maximal degree in co-relation 7493. Up to 514 conditions per place. [2021-03-25 12:13:47,509 INFO L132 encePairwiseOnDemand]: 73/87 looper letters, 245 selfloop transitions, 59 changer transitions 3/315 dead transitions. [2021-03-25 12:13:47,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 315 transitions, 7028 flow [2021-03-25 12:13:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2021-03-25 12:13:47,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3842364532019704 [2021-03-25 12:13:47,510 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 234 transitions. [2021-03-25 12:13:47,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 234 transitions. [2021-03-25 12:13:47,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:47,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 234 transitions. [2021-03-25 12:13:47,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,511 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,511 INFO L185 Difference]: Start difference. First operand has 218 places, 300 transitions, 6146 flow. Second operand 7 states and 234 transitions. [2021-03-25 12:13:47,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 315 transitions, 7028 flow [2021-03-25 12:13:47,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 315 transitions, 6920 flow, removed 52 selfloop flow, removed 2 redundant places. [2021-03-25 12:13:47,592 INFO L241 Difference]: Finished difference. Result has 225 places, 306 transitions, 6318 flow [2021-03-25 12:13:47,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=6038, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6318, PETRI_PLACES=225, PETRI_TRANSITIONS=306} [2021-03-25 12:13:47,592 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 178 predicate places. [2021-03-25 12:13:47,592 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:47,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 306 transitions, 6318 flow [2021-03-25 12:13:47,592 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 306 transitions, 6318 flow [2021-03-25 12:13:47,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 306 transitions, 6318 flow [2021-03-25 12:13:47,646 INFO L129 PetriNetUnfolder]: 277/556 cut-off events. [2021-03-25 12:13:47,646 INFO L130 PetriNetUnfolder]: For 23322/23388 co-relation queries the response was YES. [2021-03-25 12:13:47,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6798 conditions, 556 events. 277/556 cut-off events. For 23322/23388 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2886 event pairs, 14 based on Foata normal form. 11/562 useless extension candidates. Maximal degree in co-relation 6660. Up to 239 conditions per place. [2021-03-25 12:13:47,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-25 12:13:47,664 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:47,664 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:47,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 12:13:47,665 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 306 transitions, 6318 flow [2021-03-25 12:13:47,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:47,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:47,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-25 12:13:47,665 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:47,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:47,665 INFO L82 PathProgramCache]: Analyzing trace with hash 801043106, now seen corresponding path program 2 times [2021-03-25 12:13:47,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:47,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700867978] [2021-03-25 12:13:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:47,677 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:47,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:47,682 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:47,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:47,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:47,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:47,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:47,714 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:13:47,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:13:47,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:47,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:47,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:47,755 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:47,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:47,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:47,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700867978] [2021-03-25 12:13:47,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:47,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:47,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133441869] [2021-03-25 12:13:47,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:47,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:47,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:47,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:47,758 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 87 [2021-03-25 12:13:47,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 306 transitions, 6318 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:47,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:47,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 87 [2021-03-25 12:13:47,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:48,000 INFO L129 PetriNetUnfolder]: 314/627 cut-off events. [2021-03-25 12:13:48,000 INFO L130 PetriNetUnfolder]: For 24281/24304 co-relation queries the response was YES. [2021-03-25 12:13:48,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7800 conditions, 627 events. 314/627 cut-off events. For 24281/24304 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3231 event pairs, 18 based on Foata normal form. 14/641 useless extension candidates. Maximal degree in co-relation 7658. Up to 478 conditions per place. [2021-03-25 12:13:48,007 INFO L132 encePairwiseOnDemand]: 73/87 looper letters, 207 selfloop transitions, 104 changer transitions 3/322 dead transitions. [2021-03-25 12:13:48,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 322 transitions, 7225 flow [2021-03-25 12:13:48,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:48,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 270 transitions. [2021-03-25 12:13:48,007 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3879310344827586 [2021-03-25 12:13:48,008 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 270 transitions. [2021-03-25 12:13:48,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 270 transitions. [2021-03-25 12:13:48,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:48,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 270 transitions. [2021-03-25 12:13:48,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.75) internal successors, (270), 8 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,008 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,008 INFO L185 Difference]: Start difference. First operand has 225 places, 306 transitions, 6318 flow. Second operand 8 states and 270 transitions. [2021-03-25 12:13:48,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 322 transitions, 7225 flow [2021-03-25 12:13:48,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 322 transitions, 7108 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:48,093 INFO L241 Difference]: Finished difference. Result has 230 places, 312 transitions, 6632 flow [2021-03-25 12:13:48,093 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=6205, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6632, PETRI_PLACES=230, PETRI_TRANSITIONS=312} [2021-03-25 12:13:48,093 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 183 predicate places. [2021-03-25 12:13:48,093 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:48,093 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 312 transitions, 6632 flow [2021-03-25 12:13:48,093 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 312 transitions, 6632 flow [2021-03-25 12:13:48,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 230 places, 312 transitions, 6632 flow [2021-03-25 12:13:48,148 INFO L129 PetriNetUnfolder]: 272/554 cut-off events. [2021-03-25 12:13:48,148 INFO L130 PetriNetUnfolder]: For 24526/24633 co-relation queries the response was YES. [2021-03-25 12:13:48,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6892 conditions, 554 events. 272/554 cut-off events. For 24526/24633 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2970 event pairs, 9 based on Foata normal form. 21/570 useless extension candidates. Maximal degree in co-relation 6753. Up to 236 conditions per place. [2021-03-25 12:13:48,155 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-25 12:13:48,166 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:48,166 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:48,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 12:13:48,166 INFO L480 AbstractCegarLoop]: Abstraction has has 230 places, 312 transitions, 6632 flow [2021-03-25 12:13:48,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:48,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:48,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-25 12:13:48,167 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:48,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1345127654, now seen corresponding path program 3 times [2021-03-25 12:13:48,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:48,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090166045] [2021-03-25 12:13:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:48,177 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:48,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:48,182 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:48,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:48,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:48,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:48,206 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:13:48,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:13:48,235 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:13:48,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:13:48,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:48,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:48,281 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:13:48,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:13:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:48,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090166045] [2021-03-25 12:13:48,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:48,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:48,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318705738] [2021-03-25 12:13:48,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:48,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:48,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:48,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:48,285 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 87 [2021-03-25 12:13:48,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 312 transitions, 6632 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:48,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 87 [2021-03-25 12:13:48,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:48,579 INFO L129 PetriNetUnfolder]: 314/634 cut-off events. [2021-03-25 12:13:48,579 INFO L130 PetriNetUnfolder]: For 25564/25587 co-relation queries the response was YES. [2021-03-25 12:13:48,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8017 conditions, 634 events. 314/634 cut-off events. For 25564/25587 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3371 event pairs, 22 based on Foata normal form. 14/648 useless extension candidates. Maximal degree in co-relation 7874. Up to 438 conditions per place. [2021-03-25 12:13:48,586 INFO L132 encePairwiseOnDemand]: 73/87 looper letters, 179 selfloop transitions, 134 changer transitions 5/326 dead transitions. [2021-03-25 12:13:48,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 326 transitions, 7555 flow [2021-03-25 12:13:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 304 transitions. [2021-03-25 12:13:48,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.388250319284802 [2021-03-25 12:13:48,587 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 304 transitions. [2021-03-25 12:13:48,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 304 transitions. [2021-03-25 12:13:48,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:48,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 304 transitions. [2021-03-25 12:13:48,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.77777777777778) internal successors, (304), 9 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,587 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,588 INFO L185 Difference]: Start difference. First operand has 230 places, 312 transitions, 6632 flow. Second operand 9 states and 304 transitions. [2021-03-25 12:13:48,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 326 transitions, 7555 flow [2021-03-25 12:13:48,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 326 transitions, 7256 flow, removed 18 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:48,684 INFO L241 Difference]: Finished difference. Result has 233 places, 313 transitions, 6800 flow [2021-03-25 12:13:48,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=6339, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6800, PETRI_PLACES=233, PETRI_TRANSITIONS=313} [2021-03-25 12:13:48,685 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 186 predicate places. [2021-03-25 12:13:48,685 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:48,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 313 transitions, 6800 flow [2021-03-25 12:13:48,685 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 313 transitions, 6800 flow [2021-03-25 12:13:48,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 313 transitions, 6800 flow [2021-03-25 12:13:48,742 INFO L129 PetriNetUnfolder]: 267/549 cut-off events. [2021-03-25 12:13:48,742 INFO L130 PetriNetUnfolder]: For 23899/24000 co-relation queries the response was YES. [2021-03-25 12:13:48,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6899 conditions, 549 events. 267/549 cut-off events. For 23899/24000 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2972 event pairs, 7 based on Foata normal form. 16/562 useless extension candidates. Maximal degree in co-relation 6799. Up to 230 conditions per place. [2021-03-25 12:13:48,752 INFO L142 LiptonReduction]: Number of co-enabled transitions 322 [2021-03-25 12:13:48,769 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:48,769 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:48,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 12:13:48,769 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 313 transitions, 6800 flow [2021-03-25 12:13:48,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,770 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:48,770 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:48,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-25 12:13:48,770 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash 65077011, now seen corresponding path program 60 times [2021-03-25 12:13:48,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:48,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683907170] [2021-03-25 12:13:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:48,780 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:48,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:48,785 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:48,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:48,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:48,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:48,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:48,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:48,823 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:48,826 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:48,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:48,838 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:48,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:48,852 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:48,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:48,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683907170] [2021-03-25 12:13:48,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:48,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:48,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374594928] [2021-03-25 12:13:48,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:48,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:48,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:48,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:48,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 87 [2021-03-25 12:13:48,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 313 transitions, 6800 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:48,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:48,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 87 [2021-03-25 12:13:48,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:49,249 INFO L129 PetriNetUnfolder]: 323/647 cut-off events. [2021-03-25 12:13:49,250 INFO L130 PetriNetUnfolder]: For 28380/28403 co-relation queries the response was YES. [2021-03-25 12:13:49,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8542 conditions, 647 events. 323/647 cut-off events. For 28380/28403 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3454 event pairs, 37 based on Foata normal form. 11/656 useless extension candidates. Maximal degree in co-relation 8440. Up to 538 conditions per place. [2021-03-25 12:13:49,260 INFO L132 encePairwiseOnDemand]: 75/87 looper letters, 254 selfloop transitions, 70 changer transitions 8/340 dead transitions. [2021-03-25 12:13:49,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 340 transitions, 8240 flow [2021-03-25 12:13:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 343 transitions. [2021-03-25 12:13:49,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35841170323928945 [2021-03-25 12:13:49,262 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 343 transitions. [2021-03-25 12:13:49,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 343 transitions. [2021-03-25 12:13:49,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:49,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 343 transitions. [2021-03-25 12:13:49,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:49,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 87.0) internal successors, (1044), 12 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:49,268 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 87.0) internal successors, (1044), 12 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:49,268 INFO L185 Difference]: Start difference. First operand has 232 places, 313 transitions, 6800 flow. Second operand 11 states and 343 transitions. [2021-03-25 12:13:49,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 340 transitions, 8240 flow [2021-03-25 12:13:49,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 340 transitions, 7967 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:49,418 INFO L241 Difference]: Finished difference. Result has 237 places, 328 transitions, 7200 flow [2021-03-25 12:13:49,418 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=6538, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7200, PETRI_PLACES=237, PETRI_TRANSITIONS=328} [2021-03-25 12:13:49,419 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 190 predicate places. [2021-03-25 12:13:49,419 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:49,419 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 328 transitions, 7200 flow [2021-03-25 12:13:49,419 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 328 transitions, 7200 flow [2021-03-25 12:13:49,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 328 transitions, 7200 flow [2021-03-25 12:13:49,480 INFO L129 PetriNetUnfolder]: 278/559 cut-off events. [2021-03-25 12:13:49,480 INFO L130 PetriNetUnfolder]: For 26499/26632 co-relation queries the response was YES. [2021-03-25 12:13:49,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7167 conditions, 559 events. 278/559 cut-off events. For 26499/26632 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2924 event pairs, 7 based on Foata normal form. 20/575 useless extension candidates. Maximal degree in co-relation 7027. Up to 244 conditions per place. [2021-03-25 12:13:49,488 INFO L142 LiptonReduction]: Number of co-enabled transitions 336 [2021-03-25 12:13:49,536 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:49,536 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:49,536 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 12:13:49,537 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 328 transitions, 7210 flow [2021-03-25 12:13:49,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:49,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:49,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:49,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-25 12:13:49,537 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:49,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1640182363, now seen corresponding path program 61 times [2021-03-25 12:13:49,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:49,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868526073] [2021-03-25 12:13:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:49,550 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:49,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:49,555 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:49,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:49,563 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:49,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:49,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:49,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:49,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:49,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:49,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:49,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:49,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:49,612 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:49,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:49,627 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:49,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:49,645 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:49,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:49,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868526073] [2021-03-25 12:13:49,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:49,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:13:49,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174756861] [2021-03-25 12:13:49,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:13:49,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:49,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:13:49,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:13:49,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 88 [2021-03-25 12:13:49,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 328 transitions, 7210 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:49,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:49,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 88 [2021-03-25 12:13:49,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:50,084 INFO L129 PetriNetUnfolder]: 328/656 cut-off events. [2021-03-25 12:13:50,084 INFO L130 PetriNetUnfolder]: For 30628/30651 co-relation queries the response was YES. [2021-03-25 12:13:50,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8747 conditions, 656 events. 328/656 cut-off events. For 30628/30651 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3487 event pairs, 26 based on Foata normal form. 14/670 useless extension candidates. Maximal degree in co-relation 8603. Up to 530 conditions per place. [2021-03-25 12:13:50,092 INFO L132 encePairwiseOnDemand]: 76/88 looper letters, 277 selfloop transitions, 62 changer transitions 2/349 dead transitions. [2021-03-25 12:13:50,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 349 transitions, 8478 flow [2021-03-25 12:13:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 346 transitions. [2021-03-25 12:13:50,094 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3574380165289256 [2021-03-25 12:13:50,095 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 346 transitions. [2021-03-25 12:13:50,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 346 transitions. [2021-03-25 12:13:50,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:50,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 346 transitions. [2021-03-25 12:13:50,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.454545454545453) internal successors, (346), 11 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 88.0) internal successors, (1056), 12 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,096 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 88.0) internal successors, (1056), 12 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,096 INFO L185 Difference]: Start difference. First operand has 237 places, 328 transitions, 7210 flow. Second operand 11 states and 346 transitions. [2021-03-25 12:13:50,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 349 transitions, 8478 flow [2021-03-25 12:13:50,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 349 transitions, 8081 flow, removed 191 selfloop flow, removed 3 redundant places. [2021-03-25 12:13:50,217 INFO L241 Difference]: Finished difference. Result has 251 places, 339 transitions, 7448 flow [2021-03-25 12:13:50,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=6953, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7448, PETRI_PLACES=251, PETRI_TRANSITIONS=339} [2021-03-25 12:13:50,218 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 204 predicate places. [2021-03-25 12:13:50,218 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:50,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 339 transitions, 7448 flow [2021-03-25 12:13:50,218 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 339 transitions, 7448 flow [2021-03-25 12:13:50,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 339 transitions, 7448 flow [2021-03-25 12:13:50,287 INFO L129 PetriNetUnfolder]: 298/618 cut-off events. [2021-03-25 12:13:50,287 INFO L130 PetriNetUnfolder]: For 29012/29034 co-relation queries the response was YES. [2021-03-25 12:13:50,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7939 conditions, 618 events. 298/618 cut-off events. For 29012/29034 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3367 event pairs, 8 based on Foata normal form. 5/622 useless extension candidates. Maximal degree in co-relation 7831. Up to 251 conditions per place. [2021-03-25 12:13:50,296 INFO L142 LiptonReduction]: Number of co-enabled transitions 352 [2021-03-25 12:13:50,344 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:50,345 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:50,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 12:13:50,345 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 339 transitions, 7458 flow [2021-03-25 12:13:50,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:50,345 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:50,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-25 12:13:50,345 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:50,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1725910545, now seen corresponding path program 1 times [2021-03-25 12:13:50,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:50,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086169275] [2021-03-25 12:13:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:50,358 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:50,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:50,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:50,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:50,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:50,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:50,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:50,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:50,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:50,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:50,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:50,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:50,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:50,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:50,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:50,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:50,404 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:50,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:50,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086169275] [2021-03-25 12:13:50,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:50,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:50,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737375764] [2021-03-25 12:13:50,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:50,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:50,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:50,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:50,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:50,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 339 transitions, 7458 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:50,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:50,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:50,704 INFO L129 PetriNetUnfolder]: 328/666 cut-off events. [2021-03-25 12:13:50,704 INFO L130 PetriNetUnfolder]: For 30561/30584 co-relation queries the response was YES. [2021-03-25 12:13:50,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8813 conditions, 666 events. 328/666 cut-off events. For 30561/30584 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3677 event pairs, 27 based on Foata normal form. 10/674 useless extension candidates. Maximal degree in co-relation 8703. Up to 538 conditions per place. [2021-03-25 12:13:50,715 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 252 selfloop transitions, 87 changer transitions 2/349 dead transitions. [2021-03-25 12:13:50,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 349 transitions, 8422 flow [2021-03-25 12:13:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:50,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:50,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2021-03-25 12:13:50,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37881219903691815 [2021-03-25 12:13:50,716 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 236 transitions. [2021-03-25 12:13:50,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 236 transitions. [2021-03-25 12:13:50,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:50,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 236 transitions. [2021-03-25 12:13:50,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,717 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:50,717 INFO L185 Difference]: Start difference. First operand has 249 places, 339 transitions, 7458 flow. Second operand 7 states and 236 transitions. [2021-03-25 12:13:50,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 349 transitions, 8422 flow [2021-03-25 12:13:50,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 349 transitions, 8344 flow, removed 37 selfloop flow, removed 2 redundant places. [2021-03-25 12:13:50,888 INFO L241 Difference]: Finished difference. Result has 256 places, 340 transitions, 7704 flow [2021-03-25 12:13:50,888 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7380, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7704, PETRI_PLACES=256, PETRI_TRANSITIONS=340} [2021-03-25 12:13:50,888 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 209 predicate places. [2021-03-25 12:13:50,888 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:50,888 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 256 places, 340 transitions, 7704 flow [2021-03-25 12:13:50,889 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 256 places, 340 transitions, 7704 flow [2021-03-25 12:13:50,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 340 transitions, 7704 flow [2021-03-25 12:13:50,975 INFO L129 PetriNetUnfolder]: 285/588 cut-off events. [2021-03-25 12:13:50,975 INFO L130 PetriNetUnfolder]: For 28341/28431 co-relation queries the response was YES. [2021-03-25 12:13:50,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7754 conditions, 588 events. 285/588 cut-off events. For 28341/28431 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3203 event pairs, 6 based on Foata normal form. 19/603 useless extension candidates. Maximal degree in co-relation 7603. Up to 239 conditions per place. [2021-03-25 12:13:50,987 INFO L142 LiptonReduction]: Number of co-enabled transitions 352 [2021-03-25 12:13:51,000 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:51,000 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:51,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 12:13:51,001 INFO L480 AbstractCegarLoop]: Abstraction has has 256 places, 340 transitions, 7704 flow [2021-03-25 12:13:51,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:51,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:51,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-25 12:13:51,001 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:51,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:51,001 INFO L82 PathProgramCache]: Analyzing trace with hash -866441369, now seen corresponding path program 2 times [2021-03-25 12:13:51,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:51,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208397047] [2021-03-25 12:13:51,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:51,012 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:51,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:51,017 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:51,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:51,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:51,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:51,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:51,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:51,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:51,082 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:51,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:51,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208397047] [2021-03-25 12:13:51,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:51,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:51,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561985054] [2021-03-25 12:13:51,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:51,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:51,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:51,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 340 transitions, 7704 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:51,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:51,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:51,384 INFO L129 PetriNetUnfolder]: 327/656 cut-off events. [2021-03-25 12:13:51,384 INFO L130 PetriNetUnfolder]: For 31726/31749 co-relation queries the response was YES. [2021-03-25 12:13:51,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8958 conditions, 656 events. 327/656 cut-off events. For 31726/31749 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3527 event pairs, 27 based on Foata normal form. 12/667 useless extension candidates. Maximal degree in co-relation 8803. Up to 472 conditions per place. [2021-03-25 12:13:51,394 INFO L132 encePairwiseOnDemand]: 74/89 looper letters, 172 selfloop transitions, 163 changer transitions 5/348 dead transitions. [2021-03-25 12:13:51,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 348 transitions, 8628 flow [2021-03-25 12:13:51,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 268 transitions. [2021-03-25 12:13:51,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37640449438202245 [2021-03-25 12:13:51,395 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 268 transitions. [2021-03-25 12:13:51,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 268 transitions. [2021-03-25 12:13:51,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:51,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 268 transitions. [2021-03-25 12:13:51,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.5) internal successors, (268), 8 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,396 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,396 INFO L185 Difference]: Start difference. First operand has 256 places, 340 transitions, 7704 flow. Second operand 8 states and 268 transitions. [2021-03-25 12:13:51,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 348 transitions, 8628 flow [2021-03-25 12:13:51,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 348 transitions, 8373 flow, removed 20 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:51,544 INFO L241 Difference]: Finished difference. Result has 259 places, 336 transitions, 7858 flow [2021-03-25 12:13:51,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7451, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7858, PETRI_PLACES=259, PETRI_TRANSITIONS=336} [2021-03-25 12:13:51,544 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 212 predicate places. [2021-03-25 12:13:51,545 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:51,545 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 259 places, 336 transitions, 7858 flow [2021-03-25 12:13:51,545 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 259 places, 336 transitions, 7858 flow [2021-03-25 12:13:51,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 258 places, 336 transitions, 7858 flow [2021-03-25 12:13:51,612 INFO L129 PetriNetUnfolder]: 288/591 cut-off events. [2021-03-25 12:13:51,612 INFO L130 PetriNetUnfolder]: For 29590/29682 co-relation queries the response was YES. [2021-03-25 12:13:51,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8053 conditions, 591 events. 288/591 cut-off events. For 29590/29682 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3206 event pairs, 8 based on Foata normal form. 18/608 useless extension candidates. Maximal degree in co-relation 7899. Up to 242 conditions per place. [2021-03-25 12:13:51,621 INFO L142 LiptonReduction]: Number of co-enabled transitions 352 [2021-03-25 12:13:51,634 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:51,634 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:51,634 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 12:13:51,635 INFO L480 AbstractCegarLoop]: Abstraction has has 258 places, 336 transitions, 7858 flow [2021-03-25 12:13:51,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,635 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:51,635 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:51,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-25 12:13:51,635 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:51,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:51,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1623984715, now seen corresponding path program 62 times [2021-03-25 12:13:51,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:51,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273259886] [2021-03-25 12:13:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:51,644 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:51,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:51,648 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:51,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:51,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:51,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:51,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:51,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:51,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,716 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:51,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:51,730 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:51,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:51,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273259886] [2021-03-25 12:13:51,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:51,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:13:51,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708265077] [2021-03-25 12:13:51,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:13:51,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:51,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:13:51,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:13:51,733 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:51,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 336 transitions, 7858 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:51,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:51,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:51,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:52,135 INFO L129 PetriNetUnfolder]: 332/681 cut-off events. [2021-03-25 12:13:52,135 INFO L130 PetriNetUnfolder]: For 33334/33357 co-relation queries the response was YES. [2021-03-25 12:13:52,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9377 conditions, 681 events. 332/681 cut-off events. For 33334/33357 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3729 event pairs, 33 based on Foata normal form. 12/692 useless extension candidates. Maximal degree in co-relation 9219. Up to 529 conditions per place. [2021-03-25 12:13:52,144 INFO L132 encePairwiseOnDemand]: 77/89 looper letters, 250 selfloop transitions, 82 changer transitions 19/359 dead transitions. [2021-03-25 12:13:52,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 359 transitions, 9120 flow [2021-03-25 12:13:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:13:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:13:52,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 399 transitions. [2021-03-25 12:13:52,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34485738980121 [2021-03-25 12:13:52,145 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 399 transitions. [2021-03-25 12:13:52,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 399 transitions. [2021-03-25 12:13:52,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:52,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 399 transitions. [2021-03-25 12:13:52,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.692307692307693) internal successors, (399), 13 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,146 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 89.0) internal successors, (1246), 14 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,146 INFO L185 Difference]: Start difference. First operand has 258 places, 336 transitions, 7858 flow. Second operand 13 states and 399 transitions. [2021-03-25 12:13:52,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 359 transitions, 9120 flow [2021-03-25 12:13:52,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 359 transitions, 8579 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:13:52,264 INFO L241 Difference]: Finished difference. Result has 264 places, 334 transitions, 7582 flow [2021-03-25 12:13:52,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7317, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7582, PETRI_PLACES=264, PETRI_TRANSITIONS=334} [2021-03-25 12:13:52,265 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 217 predicate places. [2021-03-25 12:13:52,265 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:52,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 334 transitions, 7582 flow [2021-03-25 12:13:52,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 334 transitions, 7582 flow [2021-03-25 12:13:52,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 260 places, 334 transitions, 7582 flow [2021-03-25 12:13:52,336 INFO L129 PetriNetUnfolder]: 287/612 cut-off events. [2021-03-25 12:13:52,336 INFO L130 PetriNetUnfolder]: For 30546/30599 co-relation queries the response was YES. [2021-03-25 12:13:52,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7923 conditions, 612 events. 287/612 cut-off events. For 30546/30599 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3440 event pairs, 10 based on Foata normal form. 10/618 useless extension candidates. Maximal degree in co-relation 7809. Up to 246 conditions per place. [2021-03-25 12:13:52,345 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-25 12:13:52,358 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:52,358 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:52,359 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 12:13:52,359 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 334 transitions, 7582 flow [2021-03-25 12:13:52,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,359 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:52,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:52,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-25 12:13:52,359 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:52,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1667117757, now seen corresponding path program 63 times [2021-03-25 12:13:52,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:52,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730856867] [2021-03-25 12:13:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:52,368 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:52,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:52,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:52,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:52,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:52,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:52,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:52,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:52,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:52,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:52,427 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:52,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:52,431 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:52,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:52,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730856867] [2021-03-25 12:13:52,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:52,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:52,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287479934] [2021-03-25 12:13:52,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:52,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:52,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:52,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:52,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:52,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 334 transitions, 7582 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:52,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:52,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:52,703 INFO L129 PetriNetUnfolder]: 325/663 cut-off events. [2021-03-25 12:13:52,703 INFO L130 PetriNetUnfolder]: For 33140/33161 co-relation queries the response was YES. [2021-03-25 12:13:52,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9018 conditions, 663 events. 325/663 cut-off events. For 33140/33161 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3625 event pairs, 40 based on Foata normal form. 14/675 useless extension candidates. Maximal degree in co-relation 8902. Up to 565 conditions per place. [2021-03-25 12:13:52,710 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 284 selfloop transitions, 49 changer transitions 2/343 dead transitions. [2021-03-25 12:13:52,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 343 transitions, 8493 flow [2021-03-25 12:13:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2021-03-25 12:13:52,711 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3595505617977528 [2021-03-25 12:13:52,711 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 256 transitions. [2021-03-25 12:13:52,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 256 transitions. [2021-03-25 12:13:52,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:52,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 256 transitions. [2021-03-25 12:13:52,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,712 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,712 INFO L185 Difference]: Start difference. First operand has 260 places, 334 transitions, 7582 flow. Second operand 8 states and 256 transitions. [2021-03-25 12:13:52,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 343 transitions, 8493 flow [2021-03-25 12:13:52,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 343 transitions, 8037 flow, removed 62 selfloop flow, removed 18 redundant places. [2021-03-25 12:13:52,866 INFO L241 Difference]: Finished difference. Result has 253 places, 339 transitions, 7412 flow [2021-03-25 12:13:52,866 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7132, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7412, PETRI_PLACES=253, PETRI_TRANSITIONS=339} [2021-03-25 12:13:52,866 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 206 predicate places. [2021-03-25 12:13:52,866 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:52,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 339 transitions, 7412 flow [2021-03-25 12:13:52,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 339 transitions, 7412 flow [2021-03-25 12:13:52,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 339 transitions, 7412 flow [2021-03-25 12:13:52,932 INFO L129 PetriNetUnfolder]: 281/590 cut-off events. [2021-03-25 12:13:52,932 INFO L130 PetriNetUnfolder]: For 28632/28774 co-relation queries the response was YES. [2021-03-25 12:13:52,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7514 conditions, 590 events. 281/590 cut-off events. For 28632/28774 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3223 event pairs, 8 based on Foata normal form. 21/606 useless extension candidates. Maximal degree in co-relation 7365. Up to 241 conditions per place. [2021-03-25 12:13:52,941 INFO L142 LiptonReduction]: Number of co-enabled transitions 348 [2021-03-25 12:13:52,954 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:52,954 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:52,954 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-25 12:13:52,954 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 339 transitions, 7412 flow [2021-03-25 12:13:52,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:52,954 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:52,954 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:52,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-25 12:13:52,955 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:52,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1748738969, now seen corresponding path program 64 times [2021-03-25 12:13:52,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:52,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351441335] [2021-03-25 12:13:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:52,968 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:52,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:52,973 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:52,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:52,980 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:52,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:52,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:52,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:52,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:53,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,040 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:53,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:53,045 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:53,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:53,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:53,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351441335] [2021-03-25 12:13:53,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:53,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:53,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35840309] [2021-03-25 12:13:53,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:53,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:53,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:53,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:53,048 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:53,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 339 transitions, 7412 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:53,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:53,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:53,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:53,395 INFO L129 PetriNetUnfolder]: 335/679 cut-off events. [2021-03-25 12:13:53,395 INFO L130 PetriNetUnfolder]: For 32179/32202 co-relation queries the response was YES. [2021-03-25 12:13:53,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9157 conditions, 679 events. 335/679 cut-off events. For 32179/32202 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3690 event pairs, 35 based on Foata normal form. 10/687 useless extension candidates. Maximal degree in co-relation 9004. Up to 517 conditions per place. [2021-03-25 12:13:53,403 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 225 selfloop transitions, 119 changer transitions 6/358 dead transitions. [2021-03-25 12:13:53,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 358 transitions, 8747 flow [2021-03-25 12:13:53,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2021-03-25 12:13:53,404 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3561797752808989 [2021-03-25 12:13:53,404 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 317 transitions. [2021-03-25 12:13:53,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 317 transitions. [2021-03-25 12:13:53,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:53,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 317 transitions. [2021-03-25 12:13:53,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:53,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:53,405 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:53,405 INFO L185 Difference]: Start difference. First operand has 253 places, 339 transitions, 7412 flow. Second operand 10 states and 317 transitions. [2021-03-25 12:13:53,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 358 transitions, 8747 flow [2021-03-25 12:13:53,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 358 transitions, 8562 flow, removed 50 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:53,528 INFO L241 Difference]: Finished difference. Result has 261 places, 349 transitions, 7965 flow [2021-03-25 12:13:53,528 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7235, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7965, PETRI_PLACES=261, PETRI_TRANSITIONS=349} [2021-03-25 12:13:53,528 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 214 predicate places. [2021-03-25 12:13:53,529 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:53,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 349 transitions, 7965 flow [2021-03-25 12:13:53,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 349 transitions, 7965 flow [2021-03-25 12:13:53,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 260 places, 349 transitions, 7965 flow [2021-03-25 12:13:53,598 INFO L129 PetriNetUnfolder]: 291/608 cut-off events. [2021-03-25 12:13:53,599 INFO L130 PetriNetUnfolder]: For 31566/31690 co-relation queries the response was YES. [2021-03-25 12:13:53,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8067 conditions, 608 events. 291/608 cut-off events. For 31566/31690 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3385 event pairs, 14 based on Foata normal form. 20/621 useless extension candidates. Maximal degree in co-relation 7914. Up to 253 conditions per place. [2021-03-25 12:13:53,608 INFO L142 LiptonReduction]: Number of co-enabled transitions 348 [2021-03-25 12:13:53,622 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:53,622 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:53,622 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 12:13:53,622 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 349 transitions, 7965 flow [2021-03-25 12:13:53,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:53,623 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:53,623 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:53,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-25 12:13:53,623 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:53,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:53,623 INFO L82 PathProgramCache]: Analyzing trace with hash -276646095, now seen corresponding path program 65 times [2021-03-25 12:13:53,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:53,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004924632] [2021-03-25 12:13:53,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:53,635 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:53,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:53,640 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:53,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:53,648 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:53,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:53,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:53,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:53,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:53,700 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:53,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:53,704 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:53,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:53,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004924632] [2021-03-25 12:13:53,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:53,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:53,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659207747] [2021-03-25 12:13:53,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:53,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:53,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:53,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:53,707 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:53,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 349 transitions, 7965 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:53,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:53,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:53,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:54,064 INFO L129 PetriNetUnfolder]: 340/689 cut-off events. [2021-03-25 12:13:54,064 INFO L130 PetriNetUnfolder]: For 34545/34568 co-relation queries the response was YES. [2021-03-25 12:13:54,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9561 conditions, 689 events. 340/689 cut-off events. For 34545/34568 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3734 event pairs, 40 based on Foata normal form. 10/697 useless extension candidates. Maximal degree in co-relation 9404. Up to 537 conditions per place. [2021-03-25 12:13:54,072 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 235 selfloop transitions, 115 changer transitions 11/369 dead transitions. [2021-03-25 12:13:54,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 369 transitions, 9331 flow [2021-03-25 12:13:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:13:54,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:13:54,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 377 transitions. [2021-03-25 12:13:54,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3529962546816479 [2021-03-25 12:13:54,073 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 377 transitions. [2021-03-25 12:13:54,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 377 transitions. [2021-03-25 12:13:54,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:54,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 377 transitions. [2021-03-25 12:13:54,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 12 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 89.0) internal successors, (1157), 13 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,075 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 89.0) internal successors, (1157), 13 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,075 INFO L185 Difference]: Start difference. First operand has 260 places, 349 transitions, 7965 flow. Second operand 12 states and 377 transitions. [2021-03-25 12:13:54,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 369 transitions, 9331 flow [2021-03-25 12:13:54,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 369 transitions, 8927 flow, removed 141 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:54,216 INFO L241 Difference]: Finished difference. Result has 273 places, 356 transitions, 8251 flow [2021-03-25 12:13:54,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7666, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8251, PETRI_PLACES=273, PETRI_TRANSITIONS=356} [2021-03-25 12:13:54,216 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 226 predicate places. [2021-03-25 12:13:54,217 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:54,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 356 transitions, 8251 flow [2021-03-25 12:13:54,217 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 356 transitions, 8251 flow [2021-03-25 12:13:54,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 272 places, 356 transitions, 8251 flow [2021-03-25 12:13:54,290 INFO L129 PetriNetUnfolder]: 293/613 cut-off events. [2021-03-25 12:13:54,290 INFO L130 PetriNetUnfolder]: For 32395/32519 co-relation queries the response was YES. [2021-03-25 12:13:54,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8225 conditions, 613 events. 293/613 cut-off events. For 32395/32519 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3443 event pairs, 19 based on Foata normal form. 20/626 useless extension candidates. Maximal degree in co-relation 8030. Up to 255 conditions per place. [2021-03-25 12:13:54,299 INFO L142 LiptonReduction]: Number of co-enabled transitions 344 [2021-03-25 12:13:54,314 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:54,314 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:54,314 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 12:13:54,314 INFO L480 AbstractCegarLoop]: Abstraction has has 272 places, 356 transitions, 8251 flow [2021-03-25 12:13:54,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:54,314 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:54,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-25 12:13:54,315 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:54,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:54,315 INFO L82 PathProgramCache]: Analyzing trace with hash -53562183, now seen corresponding path program 66 times [2021-03-25 12:13:54,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:54,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420823859] [2021-03-25 12:13:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:54,336 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:54,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:54,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:54,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:54,346 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:54,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:54,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:54,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:54,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:54,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:54,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:54,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:54,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:54,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:54,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:54,396 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:54,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:54,400 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:54,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:54,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420823859] [2021-03-25 12:13:54,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:54,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:54,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908268579] [2021-03-25 12:13:54,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:54,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:54,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:54,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:54,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:54,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 356 transitions, 8251 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:54,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:54,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:54,741 INFO L129 PetriNetUnfolder]: 346/704 cut-off events. [2021-03-25 12:13:54,741 INFO L130 PetriNetUnfolder]: For 35761/35784 co-relation queries the response was YES. [2021-03-25 12:13:54,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9869 conditions, 704 events. 346/704 cut-off events. For 35761/35784 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3852 event pairs, 40 based on Foata normal form. 10/712 useless extension candidates. Maximal degree in co-relation 9705. Up to 550 conditions per place. [2021-03-25 12:13:54,749 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 246 selfloop transitions, 118 changer transitions 6/378 dead transitions. [2021-03-25 12:13:54,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 378 transitions, 9677 flow [2021-03-25 12:13:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:13:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:13:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 12:13:54,750 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3645443196004994 [2021-03-25 12:13:54,750 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 12:13:54,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 12:13:54,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:54,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 12:13:54,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,751 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:54,751 INFO L185 Difference]: Start difference. First operand has 272 places, 356 transitions, 8251 flow. Second operand 9 states and 292 transitions. [2021-03-25 12:13:54,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 378 transitions, 9677 flow [2021-03-25 12:13:54,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 378 transitions, 9228 flow, removed 78 selfloop flow, removed 11 redundant places. [2021-03-25 12:13:54,909 INFO L241 Difference]: Finished difference. Result has 275 places, 369 transitions, 8604 flow [2021-03-25 12:13:54,909 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=7814, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8604, PETRI_PLACES=275, PETRI_TRANSITIONS=369} [2021-03-25 12:13:54,909 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 228 predicate places. [2021-03-25 12:13:54,909 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:54,909 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 369 transitions, 8604 flow [2021-03-25 12:13:54,909 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 369 transitions, 8604 flow [2021-03-25 12:13:54,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 275 places, 369 transitions, 8604 flow [2021-03-25 12:13:55,003 INFO L129 PetriNetUnfolder]: 311/656 cut-off events. [2021-03-25 12:13:55,003 INFO L130 PetriNetUnfolder]: For 35086/35161 co-relation queries the response was YES. [2021-03-25 12:13:55,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 656 events. 311/656 cut-off events. For 35086/35161 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 3753 event pairs, 24 based on Foata normal form. 14/663 useless extension candidates. Maximal degree in co-relation 8674. Up to 266 conditions per place. [2021-03-25 12:13:55,014 INFO L142 LiptonReduction]: Number of co-enabled transitions 344 [2021-03-25 12:13:55,037 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:55,037 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:55,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-25 12:13:55,038 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 369 transitions, 8604 flow [2021-03-25 12:13:55,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,038 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:55,038 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:55,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-25 12:13:55,038 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:55,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:55,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1275885940, now seen corresponding path program 1 times [2021-03-25 12:13:55,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:55,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345161846] [2021-03-25 12:13:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:55,055 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:55,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:55,060 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:55,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:55,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,131 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:55,134 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:55,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:55,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345161846] [2021-03-25 12:13:55,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:55,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:55,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235959485] [2021-03-25 12:13:55,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:55,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:55,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:55,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:55,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:55,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 369 transitions, 8604 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:55,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:55,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:55,464 INFO L129 PetriNetUnfolder]: 345/700 cut-off events. [2021-03-25 12:13:55,464 INFO L130 PetriNetUnfolder]: For 36441/36464 co-relation queries the response was YES. [2021-03-25 12:13:55,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9909 conditions, 700 events. 345/700 cut-off events. For 36441/36464 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3843 event pairs, 42 based on Foata normal form. 8/705 useless extension candidates. Maximal degree in co-relation 9743. Up to 606 conditions per place. [2021-03-25 12:13:55,472 INFO L132 encePairwiseOnDemand]: 77/89 looper letters, 313 selfloop transitions, 58 changer transitions 2/381 dead transitions. [2021-03-25 12:13:55,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 381 transitions, 9623 flow [2021-03-25 12:13:55,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:55,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 339 transitions. [2021-03-25 12:13:55,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34627170582226763 [2021-03-25 12:13:55,474 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 339 transitions. [2021-03-25 12:13:55,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 339 transitions. [2021-03-25 12:13:55,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:55,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 339 transitions. [2021-03-25 12:13:55,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.818181818181817) internal successors, (339), 11 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,475 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,475 INFO L185 Difference]: Start difference. First operand has 275 places, 369 transitions, 8604 flow. Second operand 11 states and 339 transitions. [2021-03-25 12:13:55,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 381 transitions, 9623 flow [2021-03-25 12:13:55,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 381 transitions, 9437 flow, removed 73 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:55,621 INFO L241 Difference]: Finished difference. Result has 284 places, 377 transitions, 8745 flow [2021-03-25 12:13:55,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=8428, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8745, PETRI_PLACES=284, PETRI_TRANSITIONS=377} [2021-03-25 12:13:55,621 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 237 predicate places. [2021-03-25 12:13:55,622 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:55,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 377 transitions, 8745 flow [2021-03-25 12:13:55,622 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 377 transitions, 8745 flow [2021-03-25 12:13:55,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 284 places, 377 transitions, 8745 flow [2021-03-25 12:13:55,705 INFO L129 PetriNetUnfolder]: 311/655 cut-off events. [2021-03-25 12:13:55,705 INFO L130 PetriNetUnfolder]: For 36487/36562 co-relation queries the response was YES. [2021-03-25 12:13:55,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8903 conditions, 655 events. 311/655 cut-off events. For 36487/36562 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3777 event pairs, 24 based on Foata normal form. 14/662 useless extension candidates. Maximal degree in co-relation 8738. Up to 270 conditions per place. [2021-03-25 12:13:55,716 INFO L142 LiptonReduction]: Number of co-enabled transitions 344 [2021-03-25 12:13:55,732 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:55,732 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:55,732 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-03-25 12:13:55,732 INFO L480 AbstractCegarLoop]: Abstraction has has 284 places, 377 transitions, 8745 flow [2021-03-25 12:13:55,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:55,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:55,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-25 12:13:55,733 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:55,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1575138507, now seen corresponding path program 67 times [2021-03-25 12:13:55,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:55,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121383332] [2021-03-25 12:13:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:55,742 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:55,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:55,747 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:55,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:55,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:55,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:55,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:55,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:55,790 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:55,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:55,803 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:55,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:55,817 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:55,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:55,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:55,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121383332] [2021-03-25 12:13:55,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:55,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:55,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944050512] [2021-03-25 12:13:55,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:55,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:55,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:55,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:55,821 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 89 [2021-03-25 12:13:55,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 377 transitions, 8745 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:55,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:55,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 89 [2021-03-25 12:13:55,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:56,288 INFO L129 PetriNetUnfolder]: 352/726 cut-off events. [2021-03-25 12:13:56,289 INFO L130 PetriNetUnfolder]: For 39246/39269 co-relation queries the response was YES. [2021-03-25 12:13:56,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10362 conditions, 726 events. 352/726 cut-off events. For 39246/39269 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4108 event pairs, 29 based on Foata normal form. 13/738 useless extension candidates. Maximal degree in co-relation 10193. Up to 550 conditions per place. [2021-03-25 12:13:56,302 INFO L132 encePairwiseOnDemand]: 75/89 looper letters, 269 selfloop transitions, 114 changer transitions 2/393 dead transitions. [2021-03-25 12:13:56,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 393 transitions, 10169 flow [2021-03-25 12:13:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:56,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2021-03-25 12:13:56,303 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36629213483146067 [2021-03-25 12:13:56,303 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 326 transitions. [2021-03-25 12:13:56,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 326 transitions. [2021-03-25 12:13:56,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:56,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 326 transitions. [2021-03-25 12:13:56,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.6) internal successors, (326), 10 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:56,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:56,305 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 89.0) internal successors, (979), 11 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:56,305 INFO L185 Difference]: Start difference. First operand has 284 places, 377 transitions, 8745 flow. Second operand 10 states and 326 transitions. [2021-03-25 12:13:56,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 393 transitions, 10169 flow [2021-03-25 12:13:56,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 393 transitions, 10015 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-03-25 12:13:56,499 INFO L241 Difference]: Finished difference. Result has 292 places, 387 transitions, 9406 flow [2021-03-25 12:13:56,499 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=8591, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9406, PETRI_PLACES=292, PETRI_TRANSITIONS=387} [2021-03-25 12:13:56,499 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 245 predicate places. [2021-03-25 12:13:56,499 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:56,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 387 transitions, 9406 flow [2021-03-25 12:13:56,500 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 387 transitions, 9406 flow [2021-03-25 12:13:56,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 292 places, 387 transitions, 9406 flow [2021-03-25 12:13:56,598 INFO L129 PetriNetUnfolder]: 309/654 cut-off events. [2021-03-25 12:13:56,598 INFO L130 PetriNetUnfolder]: For 39245/39314 co-relation queries the response was YES. [2021-03-25 12:13:56,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9262 conditions, 654 events. 309/654 cut-off events. For 39245/39314 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 3778 event pairs, 13 based on Foata normal form. 19/669 useless extension candidates. Maximal degree in co-relation 9105. Up to 275 conditions per place. [2021-03-25 12:13:56,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 370 [2021-03-25 12:13:56,667 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:13:56,667 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:13:56,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-03-25 12:13:56,668 INFO L480 AbstractCegarLoop]: Abstraction has has 292 places, 387 transitions, 9459 flow [2021-03-25 12:13:56,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:56,668 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:56,668 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:56,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-25 12:13:56,668 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:56,668 INFO L82 PathProgramCache]: Analyzing trace with hash -994703567, now seen corresponding path program 68 times [2021-03-25 12:13:56,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:56,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82457353] [2021-03-25 12:13:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:56,687 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:56,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:56,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:56,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:56,698 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:13:56,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:13:56,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:56,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:56,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:56,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:56,728 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:56,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:56,740 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:13:56,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:56,752 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:56,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:56,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:56,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82457353] [2021-03-25 12:13:56,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:56,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:56,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450254899] [2021-03-25 12:13:56,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:56,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:56,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:56,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:56,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:13:56,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 387 transitions, 9459 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:56,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:56,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:13:56,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:57,111 INFO L129 PetriNetUnfolder]: 353/731 cut-off events. [2021-03-25 12:13:57,112 INFO L130 PetriNetUnfolder]: For 43196/43219 co-relation queries the response was YES. [2021-03-25 12:13:57,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10738 conditions, 731 events. 353/731 cut-off events. For 43196/43219 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4204 event pairs, 27 based on Foata normal form. 12/742 useless extension candidates. Maximal degree in co-relation 10575. Up to 606 conditions per place. [2021-03-25 12:13:57,121 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 333 selfloop transitions, 55 changer transitions 2/398 dead transitions. [2021-03-25 12:13:57,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 398 transitions, 10548 flow [2021-03-25 12:13:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:13:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:13:57,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:13:57,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3477777777777778 [2021-03-25 12:13:57,122 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:13:57,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:13:57,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:57,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:13:57,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,123 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,123 INFO L185 Difference]: Start difference. First operand has 292 places, 387 transitions, 9459 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:13:57,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 398 transitions, 10548 flow [2021-03-25 12:13:57,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 398 transitions, 9958 flow, removed 205 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:57,333 INFO L241 Difference]: Finished difference. Result has 299 places, 390 transitions, 9145 flow [2021-03-25 12:13:57,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=8869, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9145, PETRI_PLACES=299, PETRI_TRANSITIONS=390} [2021-03-25 12:13:57,334 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 252 predicate places. [2021-03-25 12:13:57,334 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:57,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 299 places, 390 transitions, 9145 flow [2021-03-25 12:13:57,334 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 299 places, 390 transitions, 9145 flow [2021-03-25 12:13:57,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 297 places, 390 transitions, 9145 flow [2021-03-25 12:13:57,419 INFO L129 PetriNetUnfolder]: 307/655 cut-off events. [2021-03-25 12:13:57,420 INFO L130 PetriNetUnfolder]: For 39605/39685 co-relation queries the response was YES. [2021-03-25 12:13:57,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9086 conditions, 655 events. 307/655 cut-off events. For 39605/39685 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3804 event pairs, 11 based on Foata normal form. 25/677 useless extension candidates. Maximal degree in co-relation 8958. Up to 262 conditions per place. [2021-03-25 12:13:57,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 378 [2021-03-25 12:13:57,449 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:57,450 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:57,450 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 12:13:57,450 INFO L480 AbstractCegarLoop]: Abstraction has has 297 places, 390 transitions, 9145 flow [2021-03-25 12:13:57,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:57,450 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:57,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-25 12:13:57,450 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:57,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:57,450 INFO L82 PathProgramCache]: Analyzing trace with hash 469493901, now seen corresponding path program 1 times [2021-03-25 12:13:57,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:57,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543155407] [2021-03-25 12:13:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:57,460 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:57,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:57,465 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:57,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:57,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:57,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:57,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:57,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:57,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:57,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:57,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:57,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:57,502 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:13:57,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:57,505 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:57,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:57,518 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:57,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:57,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:57,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543155407] [2021-03-25 12:13:57,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:57,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:13:57,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924047958] [2021-03-25 12:13:57,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:13:57,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:57,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:13:57,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:13:57,522 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:13:57,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 390 transitions, 9145 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:57,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:13:57,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:57,823 INFO L129 PetriNetUnfolder]: 358/751 cut-off events. [2021-03-25 12:13:57,824 INFO L130 PetriNetUnfolder]: For 43728/43757 co-relation queries the response was YES. [2021-03-25 12:13:57,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10625 conditions, 751 events. 358/751 cut-off events. For 43728/43757 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4349 event pairs, 36 based on Foata normal form. 18/768 useless extension candidates. Maximal degree in co-relation 10495. Up to 620 conditions per place. [2021-03-25 12:13:57,833 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 337 selfloop transitions, 60 changer transitions 3/408 dead transitions. [2021-03-25 12:13:57,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 408 transitions, 10326 flow [2021-03-25 12:13:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:13:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:13:57,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2021-03-25 12:13:57,834 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2021-03-25 12:13:57,834 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 240 transitions. [2021-03-25 12:13:57,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 240 transitions. [2021-03-25 12:13:57,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:57,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 240 transitions. [2021-03-25 12:13:57,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.285714285714285) internal successors, (240), 7 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,835 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 90.0) internal successors, (720), 8 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:57,835 INFO L185 Difference]: Start difference. First operand has 297 places, 390 transitions, 9145 flow. Second operand 7 states and 240 transitions. [2021-03-25 12:13:57,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 408 transitions, 10326 flow [2021-03-25 12:13:58,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 408 transitions, 10199 flow, removed 38 selfloop flow, removed 5 redundant places. [2021-03-25 12:13:58,017 INFO L241 Difference]: Finished difference. Result has 301 places, 396 transitions, 9317 flow [2021-03-25 12:13:58,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9018, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9317, PETRI_PLACES=301, PETRI_TRANSITIONS=396} [2021-03-25 12:13:58,018 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 254 predicate places. [2021-03-25 12:13:58,018 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:58,018 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 301 places, 396 transitions, 9317 flow [2021-03-25 12:13:58,018 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 301 places, 396 transitions, 9317 flow [2021-03-25 12:13:58,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 396 transitions, 9317 flow [2021-03-25 12:13:58,122 INFO L129 PetriNetUnfolder]: 321/693 cut-off events. [2021-03-25 12:13:58,123 INFO L130 PetriNetUnfolder]: For 40854/40864 co-relation queries the response was YES. [2021-03-25 12:13:58,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9608 conditions, 693 events. 321/693 cut-off events. For 40854/40864 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4147 event pairs, 14 based on Foata normal form. 7/696 useless extension candidates. Maximal degree in co-relation 9445. Up to 264 conditions per place. [2021-03-25 12:13:58,135 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 12:13:58,153 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:58,153 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:58,153 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 12:13:58,153 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 396 transitions, 9317 flow [2021-03-25 12:13:58,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:58,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:58,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:58,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-25 12:13:58,153 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:58,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:58,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1718689275, now seen corresponding path program 2 times [2021-03-25 12:13:58,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:58,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957812257] [2021-03-25 12:13:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:58,164 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:58,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:58,169 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:58,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:58,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:58,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:58,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:58,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:58,210 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:13:58,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:13:58,214 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:58,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:58,227 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:58,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:58,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:58,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957812257] [2021-03-25 12:13:58,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:58,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:13:58,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627041567] [2021-03-25 12:13:58,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:13:58,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:58,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:13:58,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:13:58,234 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:13:58,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 396 transitions, 9317 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:58,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:58,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:13:58,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:58,594 INFO L129 PetriNetUnfolder]: 356/767 cut-off events. [2021-03-25 12:13:58,595 INFO L130 PetriNetUnfolder]: For 43767/43790 co-relation queries the response was YES. [2021-03-25 12:13:58,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10831 conditions, 767 events. 356/767 cut-off events. For 43767/43790 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4580 event pairs, 14 based on Foata normal form. 14/781 useless extension candidates. Maximal degree in co-relation 10662. Up to 555 conditions per place. [2021-03-25 12:13:58,607 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 261 selfloop transitions, 133 changer transitions 5/407 dead transitions. [2021-03-25 12:13:58,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 407 transitions, 10431 flow [2021-03-25 12:13:58,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:13:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:13:58,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 274 transitions. [2021-03-25 12:13:58,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38055555555555554 [2021-03-25 12:13:58,608 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 274 transitions. [2021-03-25 12:13:58,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 274 transitions. [2021-03-25 12:13:58,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:58,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 274 transitions. [2021-03-25 12:13:58,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:58,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:58,609 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:58,609 INFO L185 Difference]: Start difference. First operand has 301 places, 396 transitions, 9317 flow. Second operand 8 states and 274 transitions. [2021-03-25 12:13:58,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 407 transitions, 10431 flow [2021-03-25 12:13:58,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 407 transitions, 10278 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-25 12:13:58,816 INFO L241 Difference]: Finished difference. Result has 305 places, 396 transitions, 9602 flow [2021-03-25 12:13:58,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9166, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9602, PETRI_PLACES=305, PETRI_TRANSITIONS=396} [2021-03-25 12:13:58,816 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 258 predicate places. [2021-03-25 12:13:58,816 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:58,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 396 transitions, 9602 flow [2021-03-25 12:13:58,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 396 transitions, 9602 flow [2021-03-25 12:13:58,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 304 places, 396 transitions, 9602 flow [2021-03-25 12:13:58,903 INFO L129 PetriNetUnfolder]: 315/685 cut-off events. [2021-03-25 12:13:58,903 INFO L130 PetriNetUnfolder]: For 42736/42808 co-relation queries the response was YES. [2021-03-25 12:13:58,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9628 conditions, 685 events. 315/685 cut-off events. For 42736/42808 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4106 event pairs, 17 based on Foata normal form. 22/704 useless extension candidates. Maximal degree in co-relation 9496. Up to 264 conditions per place. [2021-03-25 12:13:58,914 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 12:13:58,932 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:58,932 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:58,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 12:13:58,933 INFO L480 AbstractCegarLoop]: Abstraction has has 304 places, 396 transitions, 9602 flow [2021-03-25 12:13:58,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:58,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:58,933 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:58,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-25 12:13:58,933 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:58,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:58,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1808767159, now seen corresponding path program 69 times [2021-03-25 12:13:58,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:58,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735413963] [2021-03-25 12:13:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:58,940 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:58,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:58,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:58,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:58,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:58,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:58,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:58,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:58,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:58,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:58,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:58,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:13:58,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:59,007 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:59,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:59,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735413963] [2021-03-25 12:13:59,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:59,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:59,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872640133] [2021-03-25 12:13:59,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:59,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:59,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:59,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:59,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:13:59,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 396 transitions, 9602 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:59,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:59,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:13:59,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:13:59,395 INFO L129 PetriNetUnfolder]: 356/763 cut-off events. [2021-03-25 12:13:59,395 INFO L130 PetriNetUnfolder]: For 44943/44972 co-relation queries the response was YES. [2021-03-25 12:13:59,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10970 conditions, 763 events. 356/763 cut-off events. For 44943/44972 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4496 event pairs, 41 based on Foata normal form. 16/777 useless extension candidates. Maximal degree in co-relation 10836. Up to 608 conditions per place. [2021-03-25 12:13:59,405 INFO L132 encePairwiseOnDemand]: 77/90 looper letters, 291 selfloop transitions, 99 changer transitions 2/400 dead transitions. [2021-03-25 12:13:59,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 400 transitions, 10479 flow [2021-03-25 12:13:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:13:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:13:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 346 transitions. [2021-03-25 12:13:59,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34949494949494947 [2021-03-25 12:13:59,406 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 346 transitions. [2021-03-25 12:13:59,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 346 transitions. [2021-03-25 12:13:59,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:13:59,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 346 transitions. [2021-03-25 12:13:59,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.454545454545453) internal successors, (346), 11 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:59,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:59,407 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:59,407 INFO L185 Difference]: Start difference. First operand has 304 places, 396 transitions, 9602 flow. Second operand 11 states and 346 transitions. [2021-03-25 12:13:59,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 400 transitions, 10479 flow [2021-03-25 12:13:59,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 400 transitions, 10135 flow, removed 12 selfloop flow, removed 9 redundant places. [2021-03-25 12:13:59,600 INFO L241 Difference]: Finished difference. Result has 308 places, 397 transitions, 9552 flow [2021-03-25 12:13:59,600 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9258, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9552, PETRI_PLACES=308, PETRI_TRANSITIONS=397} [2021-03-25 12:13:59,600 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 261 predicate places. [2021-03-25 12:13:59,600 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:13:59,600 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 308 places, 397 transitions, 9552 flow [2021-03-25 12:13:59,600 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 308 places, 397 transitions, 9552 flow [2021-03-25 12:13:59,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 307 places, 397 transitions, 9552 flow [2021-03-25 12:13:59,689 INFO L129 PetriNetUnfolder]: 310/680 cut-off events. [2021-03-25 12:13:59,689 INFO L130 PetriNetUnfolder]: For 41339/41436 co-relation queries the response was YES. [2021-03-25 12:13:59,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9459 conditions, 680 events. 310/680 cut-off events. For 41339/41436 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4095 event pairs, 17 based on Foata normal form. 24/701 useless extension candidates. Maximal degree in co-relation 9295. Up to 258 conditions per place. [2021-03-25 12:13:59,700 INFO L142 LiptonReduction]: Number of co-enabled transitions 396 [2021-03-25 12:13:59,718 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:13:59,718 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:13:59,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-03-25 12:13:59,718 INFO L480 AbstractCegarLoop]: Abstraction has has 307 places, 397 transitions, 9552 flow [2021-03-25 12:13:59,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:59,718 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:13:59,718 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:13:59,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-25 12:13:59,719 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:13:59,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:13:59,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1064769373, now seen corresponding path program 70 times [2021-03-25 12:13:59,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:13:59,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365236416] [2021-03-25 12:13:59,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:13:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:13:59,728 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:13:59,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:13:59,732 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:13:59,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:13:59,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:59,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:59,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:59,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:59,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:59,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:13:59,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:59,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:59,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:59,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:13:59,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:13:59,793 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:13:59,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:13:59,798 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:13:59,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:13:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:13:59,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365236416] [2021-03-25 12:13:59,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:13:59,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:13:59,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574233597] [2021-03-25 12:13:59,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:13:59,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:13:59,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:13:59,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:13:59,802 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:13:59,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 397 transitions, 9552 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:13:59,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:13:59,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:13:59,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:00,244 INFO L129 PetriNetUnfolder]: 363/771 cut-off events. [2021-03-25 12:14:00,244 INFO L130 PetriNetUnfolder]: For 44893/44939 co-relation queries the response was YES. [2021-03-25 12:14:00,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11153 conditions, 771 events. 363/771 cut-off events. For 44893/44939 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4549 event pairs, 22 based on Foata normal form. 17/786 useless extension candidates. Maximal degree in co-relation 10983. Up to 550 conditions per place. [2021-03-25 12:14:00,254 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 228 selfloop transitions, 171 changer transitions 13/420 dead transitions. [2021-03-25 12:14:00,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 420 transitions, 11185 flow [2021-03-25 12:14:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:00,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2021-03-25 12:14:00,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3655555555555556 [2021-03-25 12:14:00,255 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 329 transitions. [2021-03-25 12:14:00,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 329 transitions. [2021-03-25 12:14:00,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:00,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 329 transitions. [2021-03-25 12:14:00,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:00,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:00,256 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:00,256 INFO L185 Difference]: Start difference. First operand has 307 places, 397 transitions, 9552 flow. Second operand 10 states and 329 transitions. [2021-03-25 12:14:00,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 420 transitions, 11185 flow [2021-03-25 12:14:00,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 420 transitions, 10930 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:00,471 INFO L241 Difference]: Finished difference. Result has 313 places, 401 transitions, 9997 flow [2021-03-25 12:14:00,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9301, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9997, PETRI_PLACES=313, PETRI_TRANSITIONS=401} [2021-03-25 12:14:00,471 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 266 predicate places. [2021-03-25 12:14:00,472 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:00,472 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 401 transitions, 9997 flow [2021-03-25 12:14:00,472 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 401 transitions, 9997 flow [2021-03-25 12:14:00,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 311 places, 401 transitions, 9997 flow [2021-03-25 12:14:00,565 INFO L129 PetriNetUnfolder]: 316/686 cut-off events. [2021-03-25 12:14:00,565 INFO L130 PetriNetUnfolder]: For 44701/44841 co-relation queries the response was YES. [2021-03-25 12:14:00,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9934 conditions, 686 events. 316/686 cut-off events. For 44701/44841 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4120 event pairs, 17 based on Foata normal form. 18/698 useless extension candidates. Maximal degree in co-relation 9768. Up to 268 conditions per place. [2021-03-25 12:14:00,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 12:14:00,606 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:00,606 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:00,606 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 12:14:00,606 INFO L480 AbstractCegarLoop]: Abstraction has has 311 places, 401 transitions, 9997 flow [2021-03-25 12:14:00,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:00,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:00,607 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:00,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-25 12:14:00,607 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:00,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:00,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2108525172, now seen corresponding path program 2 times [2021-03-25 12:14:00,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:00,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091641426] [2021-03-25 12:14:00,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:00,619 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:00,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:00,624 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:00,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:00,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:00,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:00,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:00,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:00,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:00,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:00,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:00,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:00,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:00,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:00,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:00,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:00,677 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:00,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:00,681 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:00,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:00,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091641426] [2021-03-25 12:14:00,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:00,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:00,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600776092] [2021-03-25 12:14:00,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:00,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:00,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:00,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:00,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:00,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 401 transitions, 9997 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:00,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:00,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:00,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:01,010 INFO L129 PetriNetUnfolder]: 359/759 cut-off events. [2021-03-25 12:14:01,010 INFO L130 PetriNetUnfolder]: For 48296/48319 co-relation queries the response was YES. [2021-03-25 12:14:01,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11349 conditions, 759 events. 359/759 cut-off events. For 48296/48319 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4412 event pairs, 38 based on Foata normal form. 8/764 useless extension candidates. Maximal degree in co-relation 11175. Up to 649 conditions per place. [2021-03-25 12:14:01,020 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 346 selfloop transitions, 53 changer transitions 2/409 dead transitions. [2021-03-25 12:14:01,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 409 transitions, 11037 flow [2021-03-25 12:14:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:14:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:14:01,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 282 transitions. [2021-03-25 12:14:01,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34814814814814815 [2021-03-25 12:14:01,021 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 282 transitions. [2021-03-25 12:14:01,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 282 transitions. [2021-03-25 12:14:01,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:01,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 282 transitions. [2021-03-25 12:14:01,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.333333333333332) internal successors, (282), 9 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,022 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,022 INFO L185 Difference]: Start difference. First operand has 311 places, 401 transitions, 9997 flow. Second operand 9 states and 282 transitions. [2021-03-25 12:14:01,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 409 transitions, 11037 flow [2021-03-25 12:14:01,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 409 transitions, 10451 flow, removed 64 selfloop flow, removed 14 redundant places. [2021-03-25 12:14:01,230 INFO L241 Difference]: Finished difference. Result has 310 places, 405 transitions, 9696 flow [2021-03-25 12:14:01,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9431, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9696, PETRI_PLACES=310, PETRI_TRANSITIONS=405} [2021-03-25 12:14:01,231 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 263 predicate places. [2021-03-25 12:14:01,231 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:01,231 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 310 places, 405 transitions, 9696 flow [2021-03-25 12:14:01,231 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 310 places, 405 transitions, 9696 flow [2021-03-25 12:14:01,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 310 places, 405 transitions, 9696 flow [2021-03-25 12:14:01,324 INFO L129 PetriNetUnfolder]: 318/693 cut-off events. [2021-03-25 12:14:01,325 INFO L130 PetriNetUnfolder]: For 41652/41739 co-relation queries the response was YES. [2021-03-25 12:14:01,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9652 conditions, 693 events. 318/693 cut-off events. For 41652/41739 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4187 event pairs, 10 based on Foata normal form. 21/713 useless extension candidates. Maximal degree in co-relation 9484. Up to 269 conditions per place. [2021-03-25 12:14:01,336 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-25 12:14:01,355 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:01,355 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:01,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-25 12:14:01,355 INFO L480 AbstractCegarLoop]: Abstraction has has 310 places, 405 transitions, 9696 flow [2021-03-25 12:14:01,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:01,356 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:01,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-25 12:14:01,356 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:01,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:01,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1565624171, now seen corresponding path program 71 times [2021-03-25 12:14:01,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:01,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246734430] [2021-03-25 12:14:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:01,368 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:01,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:01,372 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:01,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:01,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:01,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:01,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:01,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:01,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:01,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:01,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:01,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:01,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:01,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:01,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:01,436 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:01,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:01,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246734430] [2021-03-25 12:14:01,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:01,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:01,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266004993] [2021-03-25 12:14:01,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:01,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:01,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:01,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:01,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:01,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 405 transitions, 9696 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:01,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:01,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:01,803 INFO L129 PetriNetUnfolder]: 361/766 cut-off events. [2021-03-25 12:14:01,803 INFO L130 PetriNetUnfolder]: For 43980/44003 co-relation queries the response was YES. [2021-03-25 12:14:01,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11020 conditions, 766 events. 361/766 cut-off events. For 43980/44003 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4528 event pairs, 37 based on Foata normal form. 10/774 useless extension candidates. Maximal degree in co-relation 10846. Up to 617 conditions per place. [2021-03-25 12:14:01,812 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 309 selfloop transitions, 94 changer transitions 2/413 dead transitions. [2021-03-25 12:14:01,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 413 transitions, 10708 flow [2021-03-25 12:14:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:14:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:14:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 288 transitions. [2021-03-25 12:14:01,813 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2021-03-25 12:14:01,813 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 288 transitions. [2021-03-25 12:14:01,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 288 transitions. [2021-03-25 12:14:01,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:01,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 288 transitions. [2021-03-25 12:14:01,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.0) internal successors, (288), 9 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,814 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:01,814 INFO L185 Difference]: Start difference. First operand has 310 places, 405 transitions, 9696 flow. Second operand 9 states and 288 transitions. [2021-03-25 12:14:01,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 413 transitions, 10708 flow [2021-03-25 12:14:01,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 413 transitions, 10538 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-03-25 12:14:02,002 INFO L241 Difference]: Finished difference. Result has 315 places, 409 transitions, 9925 flow [2021-03-25 12:14:02,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9526, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9925, PETRI_PLACES=315, PETRI_TRANSITIONS=409} [2021-03-25 12:14:02,002 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 268 predicate places. [2021-03-25 12:14:02,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:02,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 409 transitions, 9925 flow [2021-03-25 12:14:02,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 409 transitions, 9925 flow [2021-03-25 12:14:02,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 314 places, 409 transitions, 9925 flow [2021-03-25 12:14:02,112 INFO L129 PetriNetUnfolder]: 319/707 cut-off events. [2021-03-25 12:14:02,112 INFO L130 PetriNetUnfolder]: For 43798/43889 co-relation queries the response was YES. [2021-03-25 12:14:02,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9821 conditions, 707 events. 319/707 cut-off events. For 43798/43889 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4318 event pairs, 9 based on Foata normal form. 20/725 useless extension candidates. Maximal degree in co-relation 9652. Up to 267 conditions per place. [2021-03-25 12:14:02,126 INFO L142 LiptonReduction]: Number of co-enabled transitions 402 [2021-03-25 12:14:02,145 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:02,145 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:02,145 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-25 12:14:02,146 INFO L480 AbstractCegarLoop]: Abstraction has has 314 places, 409 transitions, 9925 flow [2021-03-25 12:14:02,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:02,146 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:02,146 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:02,146 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-25 12:14:02,146 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:02,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:02,146 INFO L82 PathProgramCache]: Analyzing trace with hash -2005910757, now seen corresponding path program 72 times [2021-03-25 12:14:02,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:02,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078471046] [2021-03-25 12:14:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:02,160 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:02,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:02,165 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:02,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:02,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:02,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:02,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:02,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:02,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:02,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:02,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:02,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:02,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:02,212 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:02,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:02,224 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:02,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:02,236 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:02,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:02,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078471046] [2021-03-25 12:14:02,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:02,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:02,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291535300] [2021-03-25 12:14:02,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:02,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:02,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:02,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:02,239 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:02,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 409 transitions, 9925 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:02,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:02,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:02,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:02,656 INFO L129 PetriNetUnfolder]: 362/778 cut-off events. [2021-03-25 12:14:02,656 INFO L130 PetriNetUnfolder]: For 46805/46828 co-relation queries the response was YES. [2021-03-25 12:14:02,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11301 conditions, 778 events. 362/778 cut-off events. For 46805/46828 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4703 event pairs, 29 based on Foata normal form. 14/792 useless extension candidates. Maximal degree in co-relation 11126. Up to 574 conditions per place. [2021-03-25 12:14:02,666 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 286 selfloop transitions, 126 changer transitions 4/424 dead transitions. [2021-03-25 12:14:02,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 424 transitions, 11151 flow [2021-03-25 12:14:02,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 355 transitions. [2021-03-25 12:14:02,667 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35858585858585856 [2021-03-25 12:14:02,667 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 355 transitions. [2021-03-25 12:14:02,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 355 transitions. [2021-03-25 12:14:02,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:02,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 355 transitions. [2021-03-25 12:14:02,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.27272727272727) internal successors, (355), 11 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:02,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:02,668 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:02,668 INFO L185 Difference]: Start difference. First operand has 314 places, 409 transitions, 9925 flow. Second operand 11 states and 355 transitions. [2021-03-25 12:14:02,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 424 transitions, 11151 flow [2021-03-25 12:14:02,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 424 transitions, 10844 flow, removed 50 selfloop flow, removed 7 redundant places. [2021-03-25 12:14:02,880 INFO L241 Difference]: Finished difference. Result has 320 places, 413 transitions, 10105 flow [2021-03-25 12:14:02,880 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9620, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10105, PETRI_PLACES=320, PETRI_TRANSITIONS=413} [2021-03-25 12:14:02,880 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 273 predicate places. [2021-03-25 12:14:02,881 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:02,881 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 320 places, 413 transitions, 10105 flow [2021-03-25 12:14:02,881 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 320 places, 413 transitions, 10105 flow [2021-03-25 12:14:02,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 319 places, 413 transitions, 10105 flow [2021-03-25 12:14:02,973 INFO L129 PetriNetUnfolder]: 322/719 cut-off events. [2021-03-25 12:14:02,974 INFO L130 PetriNetUnfolder]: For 42653/42744 co-relation queries the response was YES. [2021-03-25 12:14:02,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10028 conditions, 719 events. 322/719 cut-off events. For 42653/42744 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4490 event pairs, 14 based on Foata normal form. 22/738 useless extension candidates. Maximal degree in co-relation 9891. Up to 274 conditions per place. [2021-03-25 12:14:02,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-25 12:14:03,003 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:03,003 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:03,003 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 12:14:03,004 INFO L480 AbstractCegarLoop]: Abstraction has has 319 places, 413 transitions, 10105 flow [2021-03-25 12:14:03,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:03,004 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:03,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:03,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-25 12:14:03,004 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:03,004 INFO L82 PathProgramCache]: Analyzing trace with hash -352957383, now seen corresponding path program 73 times [2021-03-25 12:14:03,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:03,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353103405] [2021-03-25 12:14:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:03,013 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:03,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:03,019 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:03,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:03,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:03,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:03,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:03,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:03,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:03,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:03,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:03,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:03,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:03,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:03,083 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:03,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:03,090 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:03,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:03,102 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:03,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:03,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353103405] [2021-03-25 12:14:03,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:03,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:03,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320477433] [2021-03-25 12:14:03,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:03,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:03,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:03,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:03,105 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:03,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 413 transitions, 10105 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:03,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:03,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:03,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:03,631 INFO L129 PetriNetUnfolder]: 362/794 cut-off events. [2021-03-25 12:14:03,631 INFO L130 PetriNetUnfolder]: For 50054/50069 co-relation queries the response was YES. [2021-03-25 12:14:03,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11608 conditions, 794 events. 362/794 cut-off events. For 50054/50069 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4889 event pairs, 23 based on Foata normal form. 12/806 useless extension candidates. Maximal degree in co-relation 11469. Up to 583 conditions per place. [2021-03-25 12:14:03,641 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 304 selfloop transitions, 115 changer transitions 2/429 dead transitions. [2021-03-25 12:14:03,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 429 transitions, 11504 flow [2021-03-25 12:14:03,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 354 transitions. [2021-03-25 12:14:03,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3575757575757576 [2021-03-25 12:14:03,642 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 354 transitions. [2021-03-25 12:14:03,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 354 transitions. [2021-03-25 12:14:03,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:03,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 354 transitions. [2021-03-25 12:14:03,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:03,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:03,643 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:03,643 INFO L185 Difference]: Start difference. First operand has 319 places, 413 transitions, 10105 flow. Second operand 11 states and 354 transitions. [2021-03-25 12:14:03,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 429 transitions, 11504 flow [2021-03-25 12:14:03,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 429 transitions, 11234 flow, removed 75 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:03,841 INFO L241 Difference]: Finished difference. Result has 326 places, 419 transitions, 10438 flow [2021-03-25 12:14:03,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9909, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10438, PETRI_PLACES=326, PETRI_TRANSITIONS=419} [2021-03-25 12:14:03,841 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 279 predicate places. [2021-03-25 12:14:03,841 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:03,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 326 places, 419 transitions, 10438 flow [2021-03-25 12:14:03,842 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 326 places, 419 transitions, 10438 flow [2021-03-25 12:14:03,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 419 transitions, 10438 flow [2021-03-25 12:14:03,945 INFO L129 PetriNetUnfolder]: 317/713 cut-off events. [2021-03-25 12:14:03,946 INFO L130 PetriNetUnfolder]: For 48354/48439 co-relation queries the response was YES. [2021-03-25 12:14:03,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10230 conditions, 713 events. 317/713 cut-off events. For 48354/48439 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4436 event pairs, 18 based on Foata normal form. 21/732 useless extension candidates. Maximal degree in co-relation 10090. Up to 268 conditions per place. [2021-03-25 12:14:03,957 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 12:14:03,976 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:03,976 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:03,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 12:14:03,976 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 419 transitions, 10438 flow [2021-03-25 12:14:03,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:03,976 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:03,976 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:03,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-25 12:14:03,977 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash -2015425093, now seen corresponding path program 74 times [2021-03-25 12:14:03,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:03,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953958795] [2021-03-25 12:14:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:03,988 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:03,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:03,993 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:03,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:04,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:04,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:04,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:04,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:04,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:04,059 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:04,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:04,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953958795] [2021-03-25 12:14:04,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:04,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:04,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637920588] [2021-03-25 12:14:04,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:04,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:04,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:04,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:04,062 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:04,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 419 transitions, 10438 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:04,062 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:04,062 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:04,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:04,434 INFO L129 PetriNetUnfolder]: 362/797 cut-off events. [2021-03-25 12:14:04,434 INFO L130 PetriNetUnfolder]: For 50042/50079 co-relation queries the response was YES. [2021-03-25 12:14:04,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11743 conditions, 797 events. 362/797 cut-off events. For 50042/50079 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4878 event pairs, 31 based on Foata normal form. 15/810 useless extension candidates. Maximal degree in co-relation 11601. Up to 629 conditions per place. [2021-03-25 12:14:04,445 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 328 selfloop transitions, 90 changer transitions 2/428 dead transitions. [2021-03-25 12:14:04,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 428 transitions, 11488 flow [2021-03-25 12:14:04,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2021-03-25 12:14:04,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2021-03-25 12:14:04,446 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 320 transitions. [2021-03-25 12:14:04,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 320 transitions. [2021-03-25 12:14:04,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:04,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 320 transitions. [2021-03-25 12:14:04,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.0) internal successors, (320), 10 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:04,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:04,447 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:04,447 INFO L185 Difference]: Start difference. First operand has 325 places, 419 transitions, 10438 flow. Second operand 10 states and 320 transitions. [2021-03-25 12:14:04,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 428 transitions, 11488 flow [2021-03-25 12:14:04,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 428 transitions, 11332 flow, removed 38 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:04,694 INFO L241 Difference]: Finished difference. Result has 331 places, 421 transitions, 10636 flow [2021-03-25 12:14:04,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10282, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10636, PETRI_PLACES=331, PETRI_TRANSITIONS=421} [2021-03-25 12:14:04,694 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 284 predicate places. [2021-03-25 12:14:04,694 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:04,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 421 transitions, 10636 flow [2021-03-25 12:14:04,695 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 421 transitions, 10636 flow [2021-03-25 12:14:04,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 421 transitions, 10636 flow [2021-03-25 12:14:04,840 INFO L129 PetriNetUnfolder]: 320/723 cut-off events. [2021-03-25 12:14:04,840 INFO L130 PetriNetUnfolder]: For 49044/49114 co-relation queries the response was YES. [2021-03-25 12:14:04,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10474 conditions, 723 events. 320/723 cut-off events. For 49044/49114 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4587 event pairs, 11 based on Foata normal form. 22/744 useless extension candidates. Maximal degree in co-relation 10317. Up to 267 conditions per place. [2021-03-25 12:14:04,860 INFO L142 LiptonReduction]: Number of co-enabled transitions 432 [2021-03-25 12:14:04,889 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:04,890 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:04,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 196 [2021-03-25 12:14:04,890 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 421 transitions, 10636 flow [2021-03-25 12:14:04,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:04,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:04,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:04,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-25 12:14:04,890 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:04,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:04,891 INFO L82 PathProgramCache]: Analyzing trace with hash 493520603, now seen corresponding path program 75 times [2021-03-25 12:14:04,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:04,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271685709] [2021-03-25 12:14:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:04,899 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:04,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:04,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:04,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:04,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:04,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:04,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:04,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:04,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:04,967 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:04,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:04,971 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:04,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:04,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271685709] [2021-03-25 12:14:04,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:04,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:04,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735983779] [2021-03-25 12:14:04,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:04,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:04,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:04,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:04,975 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:04,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 421 transitions, 10636 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:04,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:04,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:04,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:05,430 INFO L129 PetriNetUnfolder]: 366/805 cut-off events. [2021-03-25 12:14:05,430 INFO L130 PetriNetUnfolder]: For 52227/52256 co-relation queries the response was YES. [2021-03-25 12:14:05,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12096 conditions, 805 events. 366/805 cut-off events. For 52227/52256 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4961 event pairs, 36 based on Foata normal form. 14/816 useless extension candidates. Maximal degree in co-relation 11913. Up to 675 conditions per place. [2021-03-25 12:14:05,441 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 367 selfloop transitions, 60 changer transitions 2/437 dead transitions. [2021-03-25 12:14:05,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 437 transitions, 12089 flow [2021-03-25 12:14:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:14:05,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34545454545454546 [2021-03-25 12:14:05,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:14:05,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:14:05,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:05,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:14:05,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:05,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:05,443 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:05,443 INFO L185 Difference]: Start difference. First operand has 330 places, 421 transitions, 10636 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:14:05,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 437 transitions, 12089 flow [2021-03-25 12:14:05,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 437 transitions, 11745 flow, removed 59 selfloop flow, removed 8 redundant places. [2021-03-25 12:14:05,706 INFO L241 Difference]: Finished difference. Result has 336 places, 433 transitions, 10932 flow [2021-03-25 12:14:05,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10296, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10932, PETRI_PLACES=336, PETRI_TRANSITIONS=433} [2021-03-25 12:14:05,706 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 289 predicate places. [2021-03-25 12:14:05,706 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:05,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 336 places, 433 transitions, 10932 flow [2021-03-25 12:14:05,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 336 places, 433 transitions, 10932 flow [2021-03-25 12:14:05,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 336 places, 433 transitions, 10932 flow [2021-03-25 12:14:05,843 INFO L129 PetriNetUnfolder]: 329/746 cut-off events. [2021-03-25 12:14:05,843 INFO L130 PetriNetUnfolder]: For 51252/51298 co-relation queries the response was YES. [2021-03-25 12:14:05,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10871 conditions, 746 events. 329/746 cut-off events. For 51252/51298 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 4770 event pairs, 11 based on Foata normal form. 18/763 useless extension candidates. Maximal degree in co-relation 10712. Up to 278 conditions per place. [2021-03-25 12:14:05,856 INFO L142 LiptonReduction]: Number of co-enabled transitions 432 [2021-03-25 12:14:05,876 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:05,876 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:05,876 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-03-25 12:14:05,876 INFO L480 AbstractCegarLoop]: Abstraction has has 336 places, 433 transitions, 10932 flow [2021-03-25 12:14:05,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:05,876 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:05,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:05,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-25 12:14:05,877 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:05,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:05,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1076389751, now seen corresponding path program 76 times [2021-03-25 12:14:05,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:05,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068490201] [2021-03-25 12:14:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:05,888 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:05,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:05,893 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:05,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:05,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:05,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:05,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:05,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:05,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:05,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:05,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:05,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:05,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:05,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:05,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:05,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:05,941 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:05,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:05,953 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:05,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:05,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:05,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068490201] [2021-03-25 12:14:05,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:05,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:05,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484735668] [2021-03-25 12:14:05,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:05,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:05,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:05,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:05,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:05,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 433 transitions, 10932 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:05,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:05,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:05,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:06,338 INFO L129 PetriNetUnfolder]: 366/800 cut-off events. [2021-03-25 12:14:06,338 INFO L130 PetriNetUnfolder]: For 52896/52919 co-relation queries the response was YES. [2021-03-25 12:14:06,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12058 conditions, 800 events. 366/800 cut-off events. For 52896/52919 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4917 event pairs, 24 based on Foata normal form. 12/811 useless extension candidates. Maximal degree in co-relation 11873. Up to 591 conditions per place. [2021-03-25 12:14:06,349 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 301 selfloop transitions, 129 changer transitions 2/440 dead transitions. [2021-03-25 12:14:06,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 440 transitions, 11987 flow [2021-03-25 12:14:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2021-03-25 12:14:06,350 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35888888888888887 [2021-03-25 12:14:06,350 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 323 transitions. [2021-03-25 12:14:06,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 323 transitions. [2021-03-25 12:14:06,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:06,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 323 transitions. [2021-03-25 12:14:06,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:06,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:06,351 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:06,351 INFO L185 Difference]: Start difference. First operand has 336 places, 433 transitions, 10932 flow. Second operand 10 states and 323 transitions. [2021-03-25 12:14:06,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 440 transitions, 11987 flow [2021-03-25 12:14:06,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 440 transitions, 11642 flow, removed 119 selfloop flow, removed 3 redundant places. [2021-03-25 12:14:06,610 INFO L241 Difference]: Finished difference. Result has 345 places, 435 transitions, 11034 flow [2021-03-25 12:14:06,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10587, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11034, PETRI_PLACES=345, PETRI_TRANSITIONS=435} [2021-03-25 12:14:06,610 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 298 predicate places. [2021-03-25 12:14:06,610 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:06,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 435 transitions, 11034 flow [2021-03-25 12:14:06,610 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 435 transitions, 11034 flow [2021-03-25 12:14:06,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 344 places, 435 transitions, 11034 flow [2021-03-25 12:14:06,719 INFO L129 PetriNetUnfolder]: 324/735 cut-off events. [2021-03-25 12:14:06,719 INFO L130 PetriNetUnfolder]: For 51301/51370 co-relation queries the response was YES. [2021-03-25 12:14:06,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10751 conditions, 735 events. 324/735 cut-off events. For 51301/51370 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4721 event pairs, 13 based on Foata normal form. 21/754 useless extension candidates. Maximal degree in co-relation 10570. Up to 271 conditions per place. [2021-03-25 12:14:06,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-25 12:14:06,755 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:06,756 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:06,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-25 12:14:06,756 INFO L480 AbstractCegarLoop]: Abstraction has has 344 places, 435 transitions, 11034 flow [2021-03-25 12:14:06,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:06,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:06,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:06,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-25 12:14:06,756 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:06,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:06,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1970434605, now seen corresponding path program 77 times [2021-03-25 12:14:06,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:06,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097605755] [2021-03-25 12:14:06,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:06,765 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:06,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:06,769 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:06,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:06,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:06,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:06,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:06,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:06,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:06,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:06,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:06,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:06,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:06,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:06,814 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:14:06,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:06,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:06,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:06,829 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:06,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:06,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097605755] [2021-03-25 12:14:06,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:06,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:06,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342600643] [2021-03-25 12:14:06,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:06,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:06,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:06,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:06,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:06,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 435 transitions, 11034 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:06,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:06,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:06,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:07,210 INFO L129 PetriNetUnfolder]: 367/808 cut-off events. [2021-03-25 12:14:07,210 INFO L130 PetriNetUnfolder]: For 53259/53282 co-relation queries the response was YES. [2021-03-25 12:14:07,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12275 conditions, 808 events. 367/808 cut-off events. For 53259/53282 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5000 event pairs, 24 based on Foata normal form. 11/817 useless extension candidates. Maximal degree in co-relation 12104. Up to 673 conditions per place. [2021-03-25 12:14:07,221 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 380 selfloop transitions, 55 changer transitions 5/448 dead transitions. [2021-03-25 12:14:07,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 448 transitions, 12314 flow [2021-03-25 12:14:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:14:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:14:07,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 290 transitions. [2021-03-25 12:14:07,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35802469135802467 [2021-03-25 12:14:07,222 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 290 transitions. [2021-03-25 12:14:07,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 290 transitions. [2021-03-25 12:14:07,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:07,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 290 transitions. [2021-03-25 12:14:07,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.22222222222222) internal successors, (290), 9 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:07,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:07,223 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:07,223 INFO L185 Difference]: Start difference. First operand has 344 places, 435 transitions, 11034 flow. Second operand 9 states and 290 transitions. [2021-03-25 12:14:07,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 448 transitions, 12314 flow [2021-03-25 12:14:07,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 448 transitions, 11884 flow, removed 53 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:07,487 INFO L241 Difference]: Finished difference. Result has 346 places, 439 transitions, 10917 flow [2021-03-25 12:14:07,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10612, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10917, PETRI_PLACES=346, PETRI_TRANSITIONS=439} [2021-03-25 12:14:07,488 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 299 predicate places. [2021-03-25 12:14:07,488 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:07,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 346 places, 439 transitions, 10917 flow [2021-03-25 12:14:07,488 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 346 places, 439 transitions, 10917 flow [2021-03-25 12:14:07,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 346 places, 439 transitions, 10917 flow [2021-03-25 12:14:07,606 INFO L129 PetriNetUnfolder]: 325/734 cut-off events. [2021-03-25 12:14:07,606 INFO L130 PetriNetUnfolder]: For 51531/51594 co-relation queries the response was YES. [2021-03-25 12:14:07,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10695 conditions, 734 events. 325/734 cut-off events. For 51531/51594 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 4711 event pairs, 12 based on Foata normal form. 16/747 useless extension candidates. Maximal degree in co-relation 10512. Up to 271 conditions per place. [2021-03-25 12:14:07,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 444 [2021-03-25 12:14:07,638 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:07,638 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:07,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 150 [2021-03-25 12:14:07,638 INFO L480 AbstractCegarLoop]: Abstraction has has 346 places, 439 transitions, 10917 flow [2021-03-25 12:14:07,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:07,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:07,639 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:07,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-25 12:14:07,639 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:07,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:07,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1737874961, now seen corresponding path program 78 times [2021-03-25 12:14:07,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:07,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762581279] [2021-03-25 12:14:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:07,660 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:07,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:07,664 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:07,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:07,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:07,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:07,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:07,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:07,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:07,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:07,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:07,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:07,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:07,719 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:14:07,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:07,722 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:07,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:07,736 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:07,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:07,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762581279] [2021-03-25 12:14:07,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:07,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:07,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449061127] [2021-03-25 12:14:07,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:07,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:07,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:07,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:07,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:07,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 439 transitions, 10917 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:07,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:07,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:07,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:08,165 INFO L129 PetriNetUnfolder]: 369/810 cut-off events. [2021-03-25 12:14:08,165 INFO L130 PetriNetUnfolder]: For 54221/54244 co-relation queries the response was YES. [2021-03-25 12:14:08,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12211 conditions, 810 events. 369/810 cut-off events. For 54221/54244 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5028 event pairs, 24 based on Foata normal form. 10/818 useless extension candidates. Maximal degree in co-relation 12022. Up to 672 conditions per place. [2021-03-25 12:14:08,176 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 376 selfloop transitions, 61 changer transitions 4/449 dead transitions. [2021-03-25 12:14:08,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 449 transitions, 12148 flow [2021-03-25 12:14:08,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 346 transitions. [2021-03-25 12:14:08,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34949494949494947 [2021-03-25 12:14:08,177 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 346 transitions. [2021-03-25 12:14:08,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 346 transitions. [2021-03-25 12:14:08,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:08,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 346 transitions. [2021-03-25 12:14:08,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.454545454545453) internal successors, (346), 11 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:08,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:08,178 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:08,178 INFO L185 Difference]: Start difference. First operand has 346 places, 439 transitions, 10917 flow. Second operand 11 states and 346 transitions. [2021-03-25 12:14:08,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 449 transitions, 12148 flow [2021-03-25 12:14:08,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 449 transitions, 11929 flow, removed 52 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:08,463 INFO L241 Difference]: Finished difference. Result has 354 places, 441 transitions, 10986 flow [2021-03-25 12:14:08,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10702, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10986, PETRI_PLACES=354, PETRI_TRANSITIONS=441} [2021-03-25 12:14:08,463 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 307 predicate places. [2021-03-25 12:14:08,463 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:08,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 441 transitions, 10986 flow [2021-03-25 12:14:08,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 441 transitions, 10986 flow [2021-03-25 12:14:08,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 354 places, 441 transitions, 10986 flow [2021-03-25 12:14:08,570 INFO L129 PetriNetUnfolder]: 326/736 cut-off events. [2021-03-25 12:14:08,570 INFO L130 PetriNetUnfolder]: For 52351/52428 co-relation queries the response was YES. [2021-03-25 12:14:08,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10782 conditions, 736 events. 326/736 cut-off events. For 52351/52428 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4716 event pairs, 12 based on Foata normal form. 21/755 useless extension candidates. Maximal degree in co-relation 10596. Up to 270 conditions per place. [2021-03-25 12:14:08,583 INFO L142 LiptonReduction]: Number of co-enabled transitions 450 [2021-03-25 12:14:08,604 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:08,604 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:08,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 12:14:08,604 INFO L480 AbstractCegarLoop]: Abstraction has has 354 places, 441 transitions, 10986 flow [2021-03-25 12:14:08,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:08,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:08,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:08,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-25 12:14:08,605 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:08,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:08,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1004217903, now seen corresponding path program 79 times [2021-03-25 12:14:08,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:08,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952395129] [2021-03-25 12:14:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:08,614 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:08,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:08,618 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:08,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:08,625 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:14:08,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:14:08,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:08,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:08,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:08,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:08,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:08,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:08,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:08,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:08,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:08,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:08,669 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:08,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:08,673 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:08,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:08,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952395129] [2021-03-25 12:14:08,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:08,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:08,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830439139] [2021-03-25 12:14:08,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:08,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:08,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:08,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:08,677 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:08,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 441 transitions, 10986 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:08,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:08,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:08,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:09,025 INFO L129 PetriNetUnfolder]: 368/815 cut-off events. [2021-03-25 12:14:09,025 INFO L130 PetriNetUnfolder]: For 55796/55819 co-relation queries the response was YES. [2021-03-25 12:14:09,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12227 conditions, 815 events. 368/815 cut-off events. For 55796/55819 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5083 event pairs, 34 based on Foata normal form. 10/823 useless extension candidates. Maximal degree in co-relation 12035. Up to 678 conditions per place. [2021-03-25 12:14:09,036 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 397 selfloop transitions, 42 changer transitions 2/449 dead transitions. [2021-03-25 12:14:09,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 449 transitions, 12076 flow [2021-03-25 12:14:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:14:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:14:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 280 transitions. [2021-03-25 12:14:09,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.345679012345679 [2021-03-25 12:14:09,037 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 280 transitions. [2021-03-25 12:14:09,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 280 transitions. [2021-03-25 12:14:09,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:09,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 280 transitions. [2021-03-25 12:14:09,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.11111111111111) internal successors, (280), 9 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:09,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:09,038 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:09,038 INFO L185 Difference]: Start difference. First operand has 354 places, 441 transitions, 10986 flow. Second operand 9 states and 280 transitions. [2021-03-25 12:14:09,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 449 transitions, 12076 flow [2021-03-25 12:14:09,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 449 transitions, 11799 flow, removed 60 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:09,301 INFO L241 Difference]: Finished difference. Result has 356 places, 443 transitions, 10931 flow [2021-03-25 12:14:09,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10711, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10931, PETRI_PLACES=356, PETRI_TRANSITIONS=443} [2021-03-25 12:14:09,301 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 309 predicate places. [2021-03-25 12:14:09,301 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:09,301 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 356 places, 443 transitions, 10931 flow [2021-03-25 12:14:09,301 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 356 places, 443 transitions, 10931 flow [2021-03-25 12:14:09,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 443 transitions, 10931 flow [2021-03-25 12:14:09,421 INFO L129 PetriNetUnfolder]: 328/745 cut-off events. [2021-03-25 12:14:09,421 INFO L130 PetriNetUnfolder]: For 50688/50764 co-relation queries the response was YES. [2021-03-25 12:14:09,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10634 conditions, 745 events. 328/745 cut-off events. For 50688/50764 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4803 event pairs, 22 based on Foata normal form. 20/761 useless extension candidates. Maximal degree in co-relation 10469. Up to 273 conditions per place. [2021-03-25 12:14:09,436 INFO L142 LiptonReduction]: Number of co-enabled transitions 454 [2021-03-25 12:14:09,457 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:09,457 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:09,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-25 12:14:09,457 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 443 transitions, 10931 flow [2021-03-25 12:14:09,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:09,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:09,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:09,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-25 12:14:09,458 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:09,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:09,458 INFO L82 PathProgramCache]: Analyzing trace with hash -362471719, now seen corresponding path program 80 times [2021-03-25 12:14:09,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:09,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089541424] [2021-03-25 12:14:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:09,465 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:09,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:09,469 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:09,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:09,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:09,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:09,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:09,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:09,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:09,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:09,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:09,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:09,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:09,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:09,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:09,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:09,551 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:09,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:09,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089541424] [2021-03-25 12:14:09,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:09,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:14:09,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373448376] [2021-03-25 12:14:09,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:14:09,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:09,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:14:09,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:14:09,554 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:09,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 443 transitions, 10931 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:09,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:09,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:09,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:10,044 INFO L129 PetriNetUnfolder]: 369/818 cut-off events. [2021-03-25 12:14:10,044 INFO L130 PetriNetUnfolder]: For 55218/55247 co-relation queries the response was YES. [2021-03-25 12:14:10,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12131 conditions, 818 events. 369/818 cut-off events. For 55218/55247 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5095 event pairs, 15 based on Foata normal form. 20/838 useless extension candidates. Maximal degree in co-relation 11962. Up to 538 conditions per place. [2021-03-25 12:14:10,056 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 275 selfloop transitions, 171 changer transitions 3/457 dead transitions. [2021-03-25 12:14:10,056 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 457 transitions, 12187 flow [2021-03-25 12:14:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:10,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 389 transitions. [2021-03-25 12:14:10,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36018518518518516 [2021-03-25 12:14:10,057 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 389 transitions. [2021-03-25 12:14:10,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 389 transitions. [2021-03-25 12:14:10,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:10,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 389 transitions. [2021-03-25 12:14:10,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 32.416666666666664) internal successors, (389), 12 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:10,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:10,058 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:10,058 INFO L185 Difference]: Start difference. First operand has 355 places, 443 transitions, 10931 flow. Second operand 12 states and 389 transitions. [2021-03-25 12:14:10,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 457 transitions, 12187 flow [2021-03-25 12:14:10,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 457 transitions, 11975 flow, removed 52 selfloop flow, removed 8 redundant places. [2021-03-25 12:14:10,320 INFO L241 Difference]: Finished difference. Result has 361 places, 446 transitions, 11293 flow [2021-03-25 12:14:10,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10721, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11293, PETRI_PLACES=361, PETRI_TRANSITIONS=446} [2021-03-25 12:14:10,320 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 314 predicate places. [2021-03-25 12:14:10,320 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:10,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 446 transitions, 11293 flow [2021-03-25 12:14:10,320 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 446 transitions, 11293 flow [2021-03-25 12:14:10,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 360 places, 446 transitions, 11293 flow [2021-03-25 12:14:10,429 INFO L129 PetriNetUnfolder]: 326/744 cut-off events. [2021-03-25 12:14:10,429 INFO L130 PetriNetUnfolder]: For 52424/52509 co-relation queries the response was YES. [2021-03-25 12:14:10,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10852 conditions, 744 events. 326/744 cut-off events. For 52424/52509 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4787 event pairs, 12 based on Foata normal form. 19/762 useless extension candidates. Maximal degree in co-relation 10686. Up to 269 conditions per place. [2021-03-25 12:14:10,444 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-25 12:14:10,466 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:10,466 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:10,466 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-25 12:14:10,466 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 446 transitions, 11293 flow [2021-03-25 12:14:10,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:10,467 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:10,467 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:10,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-25 12:14:10,467 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:10,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:10,467 INFO L82 PathProgramCache]: Analyzing trace with hash -15976335, now seen corresponding path program 81 times [2021-03-25 12:14:10,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:10,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192314549] [2021-03-25 12:14:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:10,481 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:10,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:10,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:10,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:10,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:10,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:10,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:10,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:10,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:10,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:10,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:10,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:10,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:10,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:10,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:10,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:10,554 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:10,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:10,568 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:10,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192314549] [2021-03-25 12:14:10,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:10,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:14:10,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525295258] [2021-03-25 12:14:10,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:14:10,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:10,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:14:10,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:14:10,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:10,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 446 transitions, 11293 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:10,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:10,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:10,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:11,074 INFO L129 PetriNetUnfolder]: 368/821 cut-off events. [2021-03-25 12:14:11,074 INFO L130 PetriNetUnfolder]: For 55078/55107 co-relation queries the response was YES. [2021-03-25 12:14:11,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12370 conditions, 821 events. 368/821 cut-off events. For 55078/55107 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5159 event pairs, 21 based on Foata normal form. 20/841 useless extension candidates. Maximal degree in co-relation 12200. Up to 578 conditions per place. [2021-03-25 12:14:11,085 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 298 selfloop transitions, 142 changer transitions 11/459 dead transitions. [2021-03-25 12:14:11,086 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 459 transitions, 12536 flow [2021-03-25 12:14:11,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:14:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:14:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 438 transitions. [2021-03-25 12:14:11,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3476190476190476 [2021-03-25 12:14:11,125 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 438 transitions. [2021-03-25 12:14:11,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 438 transitions. [2021-03-25 12:14:11,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:11,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 438 transitions. [2021-03-25 12:14:11,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 31.285714285714285) internal successors, (438), 14 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:11,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 90.0) internal successors, (1350), 15 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:11,127 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 90.0) internal successors, (1350), 15 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:11,127 INFO L185 Difference]: Start difference. First operand has 360 places, 446 transitions, 11293 flow. Second operand 14 states and 438 transitions. [2021-03-25 12:14:11,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 459 transitions, 12536 flow [2021-03-25 12:14:11,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 459 transitions, 11974 flow, removed 93 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:11,401 INFO L241 Difference]: Finished difference. Result has 367 places, 441 transitions, 10995 flow [2021-03-25 12:14:11,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10774, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10995, PETRI_PLACES=367, PETRI_TRANSITIONS=441} [2021-03-25 12:14:11,401 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 320 predicate places. [2021-03-25 12:14:11,401 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:11,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 441 transitions, 10995 flow [2021-03-25 12:14:11,401 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 441 transitions, 10995 flow [2021-03-25 12:14:11,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 363 places, 441 transitions, 10995 flow [2021-03-25 12:14:11,506 INFO L129 PetriNetUnfolder]: 322/739 cut-off events. [2021-03-25 12:14:11,506 INFO L130 PetriNetUnfolder]: For 52014/52092 co-relation queries the response was YES. [2021-03-25 12:14:11,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10638 conditions, 739 events. 322/739 cut-off events. For 52014/52092 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4806 event pairs, 9 based on Foata normal form. 18/755 useless extension candidates. Maximal degree in co-relation 10483. Up to 269 conditions per place. [2021-03-25 12:14:11,519 INFO L142 LiptonReduction]: Number of co-enabled transitions 450 [2021-03-25 12:14:11,552 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:11,552 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:11,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-25 12:14:11,552 INFO L480 AbstractCegarLoop]: Abstraction has has 363 places, 441 transitions, 10995 flow [2021-03-25 12:14:11,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:11,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:11,553 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:11,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-25 12:14:11,553 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:11,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:11,553 INFO L82 PathProgramCache]: Analyzing trace with hash -2101147103, now seen corresponding path program 82 times [2021-03-25 12:14:11,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:11,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725889707] [2021-03-25 12:14:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:11,561 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:11,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:11,566 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:11,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:11,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:11,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:11,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:11,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:11,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:11,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:11,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:11,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:11,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:11,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:11,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:11,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:11,622 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:11,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:11,626 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:11,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:11,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725889707] [2021-03-25 12:14:11,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:11,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:11,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773981325] [2021-03-25 12:14:11,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:11,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:11,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:11,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:11,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:11,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 441 transitions, 10995 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:11,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:11,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:11,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:12,023 INFO L129 PetriNetUnfolder]: 365/813 cut-off events. [2021-03-25 12:14:12,023 INFO L130 PetriNetUnfolder]: For 53313/53336 co-relation queries the response was YES. [2021-03-25 12:14:12,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12153 conditions, 813 events. 365/813 cut-off events. For 53313/53336 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5063 event pairs, 41 based on Foata normal form. 8/818 useless extension candidates. Maximal degree in co-relation 11996. Up to 682 conditions per place. [2021-03-25 12:14:12,035 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 377 selfloop transitions, 63 changer transitions 2/450 dead transitions. [2021-03-25 12:14:12,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 450 transitions, 12202 flow [2021-03-25 12:14:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:14:12,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:14:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2021-03-25 12:14:12,036 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3541666666666667 [2021-03-25 12:14:12,036 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 255 transitions. [2021-03-25 12:14:12,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 255 transitions. [2021-03-25 12:14:12,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:12,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 255 transitions. [2021-03-25 12:14:12,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.875) internal successors, (255), 8 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:12,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:12,037 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 90.0) internal successors, (810), 9 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:12,037 INFO L185 Difference]: Start difference. First operand has 363 places, 441 transitions, 10995 flow. Second operand 8 states and 255 transitions. [2021-03-25 12:14:12,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 450 transitions, 12202 flow [2021-03-25 12:14:12,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 450 transitions, 12001 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-03-25 12:14:12,330 INFO L241 Difference]: Finished difference. Result has 363 places, 446 transitions, 11182 flow [2021-03-25 12:14:12,331 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10796, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11182, PETRI_PLACES=363, PETRI_TRANSITIONS=446} [2021-03-25 12:14:12,331 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 316 predicate places. [2021-03-25 12:14:12,331 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:12,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 363 places, 446 transitions, 11182 flow [2021-03-25 12:14:12,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 363 places, 446 transitions, 11182 flow [2021-03-25 12:14:12,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 363 places, 446 transitions, 11182 flow [2021-03-25 12:14:12,438 INFO L129 PetriNetUnfolder]: 321/738 cut-off events. [2021-03-25 12:14:12,438 INFO L130 PetriNetUnfolder]: For 52634/52695 co-relation queries the response was YES. [2021-03-25 12:14:12,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10742 conditions, 738 events. 321/738 cut-off events. For 52634/52695 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4758 event pairs, 7 based on Foata normal form. 19/756 useless extension candidates. Maximal degree in co-relation 10574. Up to 271 conditions per place. [2021-03-25 12:14:12,451 INFO L142 LiptonReduction]: Number of co-enabled transitions 450 [2021-03-25 12:14:12,473 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:12,473 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:12,473 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-25 12:14:12,473 INFO L480 AbstractCegarLoop]: Abstraction has has 363 places, 446 transitions, 11182 flow [2021-03-25 12:14:12,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:12,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:12,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:12,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-25 12:14:12,474 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:12,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1766754743, now seen corresponding path program 83 times [2021-03-25 12:14:12,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:12,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005497561] [2021-03-25 12:14:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:12,484 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:12,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:12,488 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:12,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:12,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:12,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:12,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:12,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:12,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:12,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:12,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:12,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:12,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:12,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:12,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:12,537 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:12,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:12,549 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:12,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:12,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005497561] [2021-03-25 12:14:12,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:12,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:12,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037487617] [2021-03-25 12:14:12,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:12,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:12,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:12,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:12,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:12,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 446 transitions, 11182 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:12,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:12,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:12,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:12,997 INFO L129 PetriNetUnfolder]: 365/815 cut-off events. [2021-03-25 12:14:12,997 INFO L130 PetriNetUnfolder]: For 53845/53868 co-relation queries the response was YES. [2021-03-25 12:14:13,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12217 conditions, 815 events. 365/815 cut-off events. For 53845/53868 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5105 event pairs, 35 based on Foata normal form. 10/823 useless extension candidates. Maximal degree in co-relation 12045. Up to 654 conditions per place. [2021-03-25 12:14:13,009 INFO L132 encePairwiseOnDemand]: 77/90 looper letters, 340 selfloop transitions, 101 changer transitions 2/451 dead transitions. [2021-03-25 12:14:13,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 451 transitions, 12182 flow [2021-03-25 12:14:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 343 transitions. [2021-03-25 12:14:13,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3464646464646465 [2021-03-25 12:14:13,010 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 343 transitions. [2021-03-25 12:14:13,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 343 transitions. [2021-03-25 12:14:13,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:13,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 343 transitions. [2021-03-25 12:14:13,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,011 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,011 INFO L185 Difference]: Start difference. First operand has 363 places, 446 transitions, 11182 flow. Second operand 11 states and 343 transitions. [2021-03-25 12:14:13,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 451 transitions, 12182 flow [2021-03-25 12:14:13,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 451 transitions, 11944 flow, removed 60 selfloop flow, removed 5 redundant places. [2021-03-25 12:14:13,309 INFO L241 Difference]: Finished difference. Result has 371 places, 448 transitions, 11232 flow [2021-03-25 12:14:13,309 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10944, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11232, PETRI_PLACES=371, PETRI_TRANSITIONS=448} [2021-03-25 12:14:13,310 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 324 predicate places. [2021-03-25 12:14:13,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:13,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 448 transitions, 11232 flow [2021-03-25 12:14:13,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 448 transitions, 11232 flow [2021-03-25 12:14:13,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 448 transitions, 11232 flow [2021-03-25 12:14:13,431 INFO L129 PetriNetUnfolder]: 328/751 cut-off events. [2021-03-25 12:14:13,431 INFO L130 PetriNetUnfolder]: For 54999/55137 co-relation queries the response was YES. [2021-03-25 12:14:13,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10912 conditions, 751 events. 328/751 cut-off events. For 54999/55137 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 4874 event pairs, 11 based on Foata normal form. 21/766 useless extension candidates. Maximal degree in co-relation 10743. Up to 279 conditions per place. [2021-03-25 12:14:13,449 INFO L142 LiptonReduction]: Number of co-enabled transitions 454 [2021-03-25 12:14:13,471 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:13,471 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:13,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-25 12:14:13,472 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 448 transitions, 11232 flow [2021-03-25 12:14:13,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:13,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:13,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-25 12:14:13,472 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:13,472 INFO L82 PathProgramCache]: Analyzing trace with hash 168435129, now seen corresponding path program 84 times [2021-03-25 12:14:13,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:13,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575363366] [2021-03-25 12:14:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:13,480 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:13,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:13,484 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:13,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:13,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:13,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:13,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:13,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:13,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:13,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:13,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:13,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:13,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:13,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:13,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:13,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:13,547 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:13,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:13,551 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:13,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575363366] [2021-03-25 12:14:13,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:13,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:13,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089804733] [2021-03-25 12:14:13,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:13,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:13,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:13,554 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:13,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 448 transitions, 11232 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:13,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:13,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:13,938 INFO L129 PetriNetUnfolder]: 366/824 cut-off events. [2021-03-25 12:14:13,938 INFO L130 PetriNetUnfolder]: For 54596/54619 co-relation queries the response was YES. [2021-03-25 12:14:13,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12318 conditions, 824 events. 366/824 cut-off events. For 54596/54619 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5215 event pairs, 42 based on Foata normal form. 8/829 useless extension candidates. Maximal degree in co-relation 12145. Up to 682 conditions per place. [2021-03-25 12:14:13,949 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 374 selfloop transitions, 73 changer transitions 3/458 dead transitions. [2021-03-25 12:14:13,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 458 transitions, 12423 flow [2021-03-25 12:14:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:13,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 337 transitions. [2021-03-25 12:14:13,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34040404040404043 [2021-03-25 12:14:13,950 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 337 transitions. [2021-03-25 12:14:13,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 337 transitions. [2021-03-25 12:14:13,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:13,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 337 transitions. [2021-03-25 12:14:13,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 11 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,951 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:13,951 INFO L185 Difference]: Start difference. First operand has 370 places, 448 transitions, 11232 flow. Second operand 11 states and 337 transitions. [2021-03-25 12:14:13,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 458 transitions, 12423 flow [2021-03-25 12:14:14,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 458 transitions, 12169 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:14,261 INFO L241 Difference]: Finished difference. Result has 374 places, 453 transitions, 11321 flow [2021-03-25 12:14:14,261 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10980, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11321, PETRI_PLACES=374, PETRI_TRANSITIONS=453} [2021-03-25 12:14:14,261 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 327 predicate places. [2021-03-25 12:14:14,261 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:14,261 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 453 transitions, 11321 flow [2021-03-25 12:14:14,261 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 453 transitions, 11321 flow [2021-03-25 12:14:14,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 374 places, 453 transitions, 11321 flow [2021-03-25 12:14:14,382 INFO L129 PetriNetUnfolder]: 328/752 cut-off events. [2021-03-25 12:14:14,383 INFO L130 PetriNetUnfolder]: For 55720/55827 co-relation queries the response was YES. [2021-03-25 12:14:14,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10984 conditions, 752 events. 328/752 cut-off events. For 55720/55827 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4919 event pairs, 12 based on Foata normal form. 21/769 useless extension candidates. Maximal degree in co-relation 10813. Up to 282 conditions per place. [2021-03-25 12:14:14,398 INFO L142 LiptonReduction]: Number of co-enabled transitions 454 [2021-03-25 12:14:14,420 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:14,421 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:14,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-25 12:14:14,421 INFO L480 AbstractCegarLoop]: Abstraction has has 374 places, 453 transitions, 11321 flow [2021-03-25 12:14:14,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:14,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:14,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:14,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-25 12:14:14,421 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:14,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1086652939, now seen corresponding path program 85 times [2021-03-25 12:14:14,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:14,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886025093] [2021-03-25 12:14:14,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:14,429 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:14,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:14,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:14,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:14,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:14,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:14,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:14,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:14,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:14,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:14,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:14,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:14,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:14,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:14,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:14,496 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:14,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:14,499 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:14,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:14,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886025093] [2021-03-25 12:14:14,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:14,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:14,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244304958] [2021-03-25 12:14:14,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:14,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:14,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:14,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:14,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:14,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 453 transitions, 11321 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:14,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:14,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:14,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:14,961 INFO L129 PetriNetUnfolder]: 370/828 cut-off events. [2021-03-25 12:14:14,961 INFO L130 PetriNetUnfolder]: For 56097/56120 co-relation queries the response was YES. [2021-03-25 12:14:14,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12516 conditions, 828 events. 370/828 cut-off events. For 56097/56120 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5244 event pairs, 37 based on Foata normal form. 10/836 useless extension candidates. Maximal degree in co-relation 12341. Up to 664 conditions per place. [2021-03-25 12:14:14,974 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 358 selfloop transitions, 102 changer transitions 4/472 dead transitions. [2021-03-25 12:14:14,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 472 transitions, 12847 flow [2021-03-25 12:14:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:14:14,975 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34444444444444444 [2021-03-25 12:14:14,975 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:14:14,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:14:14,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:14,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:14:14,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:14,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:14,976 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 90.0) internal successors, (1170), 13 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:14,977 INFO L185 Difference]: Start difference. First operand has 374 places, 453 transitions, 11321 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:14:14,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 472 transitions, 12847 flow [2021-03-25 12:14:15,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 472 transitions, 12684 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:15,313 INFO L241 Difference]: Finished difference. Result has 384 places, 464 transitions, 11794 flow [2021-03-25 12:14:15,313 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=11162, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11794, PETRI_PLACES=384, PETRI_TRANSITIONS=464} [2021-03-25 12:14:15,313 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 337 predicate places. [2021-03-25 12:14:15,313 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:15,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 464 transitions, 11794 flow [2021-03-25 12:14:15,314 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 464 transitions, 11794 flow [2021-03-25 12:14:15,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 383 places, 464 transitions, 11794 flow [2021-03-25 12:14:15,432 INFO L129 PetriNetUnfolder]: 326/757 cut-off events. [2021-03-25 12:14:15,432 INFO L130 PetriNetUnfolder]: For 56112/56175 co-relation queries the response was YES. [2021-03-25 12:14:15,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11099 conditions, 757 events. 326/757 cut-off events. For 56112/56175 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4974 event pairs, 9 based on Foata normal form. 21/776 useless extension candidates. Maximal degree in co-relation 10925. Up to 282 conditions per place. [2021-03-25 12:14:15,448 INFO L142 LiptonReduction]: Number of co-enabled transitions 454 [2021-03-25 12:14:15,472 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:15,472 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:15,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-03-25 12:14:15,472 INFO L480 AbstractCegarLoop]: Abstraction has has 383 places, 464 transitions, 11794 flow [2021-03-25 12:14:15,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:15,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:15,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:15,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-25 12:14:15,473 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:15,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:15,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1097474903, now seen corresponding path program 86 times [2021-03-25 12:14:15,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:15,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078523684] [2021-03-25 12:14:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:15,484 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:15,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:15,488 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:15,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:15,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:15,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:15,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:15,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:15,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:15,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:15,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:15,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:15,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:15,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:15,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:15,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:15,555 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:15,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:15,561 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:15,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:15,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078523684] [2021-03-25 12:14:15,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:15,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:15,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189109927] [2021-03-25 12:14:15,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:15,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:15,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:15,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:15,564 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:15,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 464 transitions, 11794 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:15,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:15,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:15,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:15,998 INFO L129 PetriNetUnfolder]: 368/825 cut-off events. [2021-03-25 12:14:15,999 INFO L130 PetriNetUnfolder]: For 56743/56772 co-relation queries the response was YES. [2021-03-25 12:14:16,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12566 conditions, 825 events. 368/825 cut-off events. For 56743/56772 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5219 event pairs, 25 based on Foata normal form. 18/842 useless extension candidates. Maximal degree in co-relation 12388. Up to 667 conditions per place. [2021-03-25 12:14:16,011 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 367 selfloop transitions, 94 changer transitions 2/471 dead transitions. [2021-03-25 12:14:16,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 471 transitions, 12856 flow [2021-03-25 12:14:16,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 318 transitions. [2021-03-25 12:14:16,012 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35333333333333333 [2021-03-25 12:14:16,012 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 318 transitions. [2021-03-25 12:14:16,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 318 transitions. [2021-03-25 12:14:16,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:16,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 318 transitions. [2021-03-25 12:14:16,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.8) internal successors, (318), 10 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:16,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:16,013 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:16,013 INFO L185 Difference]: Start difference. First operand has 383 places, 464 transitions, 11794 flow. Second operand 10 states and 318 transitions. [2021-03-25 12:14:16,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 471 transitions, 12856 flow [2021-03-25 12:14:16,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 471 transitions, 12560 flow, removed 56 selfloop flow, removed 8 redundant places. [2021-03-25 12:14:16,359 INFO L241 Difference]: Finished difference. Result has 388 places, 466 transitions, 11819 flow [2021-03-25 12:14:16,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=11498, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11819, PETRI_PLACES=388, PETRI_TRANSITIONS=466} [2021-03-25 12:14:16,359 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 341 predicate places. [2021-03-25 12:14:16,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:16,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 466 transitions, 11819 flow [2021-03-25 12:14:16,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 466 transitions, 11819 flow [2021-03-25 12:14:16,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 466 transitions, 11819 flow [2021-03-25 12:14:16,480 INFO L129 PetriNetUnfolder]: 329/763 cut-off events. [2021-03-25 12:14:16,481 INFO L130 PetriNetUnfolder]: For 54179/54260 co-relation queries the response was YES. [2021-03-25 12:14:16,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11081 conditions, 763 events. 329/763 cut-off events. For 54179/54260 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5067 event pairs, 16 based on Foata normal form. 21/778 useless extension candidates. Maximal degree in co-relation 10905. Up to 285 conditions per place. [2021-03-25 12:14:16,495 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-25 12:14:16,519 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:16,520 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:16,520 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-25 12:14:16,520 INFO L480 AbstractCegarLoop]: Abstraction has has 387 places, 466 transitions, 11819 flow [2021-03-25 12:14:16,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:16,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:16,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:16,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-25 12:14:16,520 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:16,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:16,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1184650251, now seen corresponding path program 87 times [2021-03-25 12:14:16,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:16,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892783559] [2021-03-25 12:14:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:16,528 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:16,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:16,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:16,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:16,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:16,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:16,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:16,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:16,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:16,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:16,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:16,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:16,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:16,579 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:16,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:16,591 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:16,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:16,604 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:16,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:16,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892783559] [2021-03-25 12:14:16,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:16,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:16,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018100736] [2021-03-25 12:14:16,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:16,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:16,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:16,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:16,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:16,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 466 transitions, 11819 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:16,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:16,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:16,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:17,115 INFO L129 PetriNetUnfolder]: 369/837 cut-off events. [2021-03-25 12:14:17,115 INFO L130 PetriNetUnfolder]: For 59128/59151 co-relation queries the response was YES. [2021-03-25 12:14:17,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12753 conditions, 837 events. 369/837 cut-off events. For 59128/59151 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5400 event pairs, 28 based on Foata normal form. 12/848 useless extension candidates. Maximal degree in co-relation 12573. Up to 566 conditions per place. [2021-03-25 12:14:17,127 INFO L132 encePairwiseOnDemand]: 76/90 looper letters, 296 selfloop transitions, 171 changer transitions 2/477 dead transitions. [2021-03-25 12:14:17,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 477 transitions, 13216 flow [2021-03-25 12:14:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 352 transitions. [2021-03-25 12:14:17,128 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2021-03-25 12:14:17,128 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 352 transitions. [2021-03-25 12:14:17,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 352 transitions. [2021-03-25 12:14:17,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:17,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 352 transitions. [2021-03-25 12:14:17,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.0) internal successors, (352), 11 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:17,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:17,129 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 90.0) internal successors, (1080), 12 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:17,130 INFO L185 Difference]: Start difference. First operand has 387 places, 466 transitions, 11819 flow. Second operand 11 states and 352 transitions. [2021-03-25 12:14:17,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 477 transitions, 13216 flow [2021-03-25 12:14:17,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 477 transitions, 12959 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-25 12:14:17,520 INFO L241 Difference]: Finished difference. Result has 392 places, 469 transitions, 12175 flow [2021-03-25 12:14:17,520 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=11564, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12175, PETRI_PLACES=392, PETRI_TRANSITIONS=469} [2021-03-25 12:14:17,520 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 345 predicate places. [2021-03-25 12:14:17,520 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:17,520 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 392 places, 469 transitions, 12175 flow [2021-03-25 12:14:17,520 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 392 places, 469 transitions, 12175 flow [2021-03-25 12:14:17,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 391 places, 469 transitions, 12175 flow [2021-03-25 12:14:17,638 INFO L129 PetriNetUnfolder]: 327/773 cut-off events. [2021-03-25 12:14:17,638 INFO L130 PetriNetUnfolder]: For 58110/58173 co-relation queries the response was YES. [2021-03-25 12:14:17,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11428 conditions, 773 events. 327/773 cut-off events. For 58110/58173 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5199 event pairs, 10 based on Foata normal form. 21/793 useless extension candidates. Maximal degree in co-relation 11264. Up to 285 conditions per place. [2021-03-25 12:14:17,650 INFO L142 LiptonReduction]: Number of co-enabled transitions 464 [2021-03-25 12:14:17,673 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:17,673 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:17,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 12:14:17,673 INFO L480 AbstractCegarLoop]: Abstraction has has 391 places, 469 transitions, 12175 flow [2021-03-25 12:14:17,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:17,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:17,673 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:17,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-25 12:14:17,674 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:17,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:17,674 INFO L82 PathProgramCache]: Analyzing trace with hash 37143759, now seen corresponding path program 88 times [2021-03-25 12:14:17,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:17,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373890551] [2021-03-25 12:14:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:17,682 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:17,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:17,686 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:17,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:17,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:14:17,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:14:17,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:17,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:17,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:17,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:17,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:17,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:17,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:17,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:17,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:17,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:17,745 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:17,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:17,751 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:17,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:17,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373890551] [2021-03-25 12:14:17,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:17,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:17,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300325028] [2021-03-25 12:14:17,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:17,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:17,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:17,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:17,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 90 [2021-03-25 12:14:17,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 469 transitions, 12175 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:17,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:17,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 90 [2021-03-25 12:14:17,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:18,089 INFO L129 PetriNetUnfolder]: 369/837 cut-off events. [2021-03-25 12:14:18,089 INFO L130 PetriNetUnfolder]: For 61661/61684 co-relation queries the response was YES. [2021-03-25 12:14:18,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12914 conditions, 837 events. 369/837 cut-off events. For 61661/61684 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5399 event pairs, 35 based on Foata normal form. 10/845 useless extension candidates. Maximal degree in co-relation 12748. Up to 716 conditions per place. [2021-03-25 12:14:18,103 INFO L132 encePairwiseOnDemand]: 77/90 looper letters, 434 selfloop transitions, 29 changer transitions 2/473 dead transitions. [2021-03-25 12:14:18,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 473 transitions, 13217 flow [2021-03-25 12:14:18,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:18,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 299 transitions. [2021-03-25 12:14:18,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3322222222222222 [2021-03-25 12:14:18,104 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 299 transitions. [2021-03-25 12:14:18,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 299 transitions. [2021-03-25 12:14:18,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:18,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 299 transitions. [2021-03-25 12:14:18,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.9) internal successors, (299), 10 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:18,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:18,105 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:18,105 INFO L185 Difference]: Start difference. First operand has 391 places, 469 transitions, 12175 flow. Second operand 10 states and 299 transitions. [2021-03-25 12:14:18,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 473 transitions, 13217 flow [2021-03-25 12:14:18,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 473 transitions, 12870 flow, removed 46 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:18,478 INFO L241 Difference]: Finished difference. Result has 394 places, 470 transitions, 11931 flow [2021-03-25 12:14:18,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=11829, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11931, PETRI_PLACES=394, PETRI_TRANSITIONS=470} [2021-03-25 12:14:18,478 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 347 predicate places. [2021-03-25 12:14:18,478 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:18,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 470 transitions, 11931 flow [2021-03-25 12:14:18,478 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 470 transitions, 11931 flow [2021-03-25 12:14:18,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 470 transitions, 11931 flow [2021-03-25 12:14:18,606 INFO L129 PetriNetUnfolder]: 327/773 cut-off events. [2021-03-25 12:14:18,607 INFO L130 PetriNetUnfolder]: For 55583/55659 co-relation queries the response was YES. [2021-03-25 12:14:18,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11268 conditions, 773 events. 327/773 cut-off events. For 55583/55659 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5208 event pairs, 10 based on Foata normal form. 21/793 useless extension candidates. Maximal degree in co-relation 11089. Up to 281 conditions per place. [2021-03-25 12:14:18,622 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 12:14:18,711 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:18,711 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:14:18,711 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 233 [2021-03-25 12:14:18,711 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 470 transitions, 11940 flow [2021-03-25 12:14:18,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:18,712 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:18,712 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:18,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-25 12:14:18,712 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:18,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:18,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1392009515, now seen corresponding path program 89 times [2021-03-25 12:14:18,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:18,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260928618] [2021-03-25 12:14:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:18,724 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:18,728 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:18,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:18,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:18,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:18,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:18,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:18,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:18,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:18,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:18,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:18,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:18,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:18,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:18,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:18,800 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:18,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:18,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:18,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260928618] [2021-03-25 12:14:18,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:18,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:18,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106278503] [2021-03-25 12:14:18,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:18,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:18,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:18,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:18,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 470 transitions, 11940 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:18,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:18,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:18,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:19,338 INFO L129 PetriNetUnfolder]: 371/850 cut-off events. [2021-03-25 12:14:19,338 INFO L130 PetriNetUnfolder]: For 58746/58769 co-relation queries the response was YES. [2021-03-25 12:14:19,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12952 conditions, 850 events. 371/850 cut-off events. For 58746/58769 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5539 event pairs, 23 based on Foata normal form. 12/861 useless extension candidates. Maximal degree in co-relation 12769. Up to 601 conditions per place. [2021-03-25 12:14:19,351 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 268 selfloop transitions, 193 changer transitions 17/486 dead transitions. [2021-03-25 12:14:19,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 486 transitions, 13571 flow [2021-03-25 12:14:19,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:19,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 385 transitions. [2021-03-25 12:14:19,352 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3525641025641026 [2021-03-25 12:14:19,352 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 385 transitions. [2021-03-25 12:14:19,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 385 transitions. [2021-03-25 12:14:19,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:19,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 385 transitions. [2021-03-25 12:14:19,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 32.083333333333336) internal successors, (385), 12 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:19,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:19,353 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:19,353 INFO L185 Difference]: Start difference. First operand has 393 places, 470 transitions, 11940 flow. Second operand 12 states and 385 transitions. [2021-03-25 12:14:19,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 486 transitions, 13571 flow [2021-03-25 12:14:19,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 486 transitions, 13485 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:19,700 INFO L241 Difference]: Finished difference. Result has 404 places, 465 transitions, 12412 flow [2021-03-25 12:14:19,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=11856, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12412, PETRI_PLACES=404, PETRI_TRANSITIONS=465} [2021-03-25 12:14:19,700 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 357 predicate places. [2021-03-25 12:14:19,700 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:19,700 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 465 transitions, 12412 flow [2021-03-25 12:14:19,700 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 465 transitions, 12412 flow [2021-03-25 12:14:19,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 398 places, 465 transitions, 12412 flow [2021-03-25 12:14:19,842 INFO L129 PetriNetUnfolder]: 324/766 cut-off events. [2021-03-25 12:14:19,843 INFO L130 PetriNetUnfolder]: For 58438/58508 co-relation queries the response was YES. [2021-03-25 12:14:19,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11645 conditions, 766 events. 324/766 cut-off events. For 58438/58508 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5173 event pairs, 9 based on Foata normal form. 22/787 useless extension candidates. Maximal degree in co-relation 11464. Up to 279 conditions per place. [2021-03-25 12:14:19,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 466 [2021-03-25 12:14:19,889 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:19,890 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:19,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 190 [2021-03-25 12:14:19,890 INFO L480 AbstractCegarLoop]: Abstraction has has 398 places, 465 transitions, 12412 flow [2021-03-25 12:14:19,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:19,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:19,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:19,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-25 12:14:19,890 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:19,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1367981797, now seen corresponding path program 1 times [2021-03-25 12:14:19,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:19,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100060672] [2021-03-25 12:14:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:19,899 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:19,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:19,903 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:19,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:19,909 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:14:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:14:19,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:19,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:19,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:19,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:19,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:19,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:19,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:19,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:19,951 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:19,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:19,963 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:19,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:19,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:19,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100060672] [2021-03-25 12:14:19,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:19,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:19,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241331066] [2021-03-25 12:14:19,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:19,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:19,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:19,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:19,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:19,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 465 transitions, 12412 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:19,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:19,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:19,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:20,345 INFO L129 PetriNetUnfolder]: 363/831 cut-off events. [2021-03-25 12:14:20,345 INFO L130 PetriNetUnfolder]: For 61459/61482 co-relation queries the response was YES. [2021-03-25 12:14:20,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13062 conditions, 831 events. 363/831 cut-off events. For 61459/61482 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5408 event pairs, 38 based on Foata normal form. 10/839 useless extension candidates. Maximal degree in co-relation 12878. Up to 708 conditions per place. [2021-03-25 12:14:20,359 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 430 selfloop transitions, 26 changer transitions 3/467 dead transitions. [2021-03-25 12:14:20,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 467 transitions, 13359 flow [2021-03-25 12:14:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 323 transitions. [2021-03-25 12:14:20,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3226773226773227 [2021-03-25 12:14:20,361 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 323 transitions. [2021-03-25 12:14:20,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 323 transitions. [2021-03-25 12:14:20,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:20,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 323 transitions. [2021-03-25 12:14:20,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.363636363636363) internal successors, (323), 11 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:20,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:20,361 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:20,361 INFO L185 Difference]: Start difference. First operand has 398 places, 465 transitions, 12412 flow. Second operand 11 states and 323 transitions. [2021-03-25 12:14:20,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 467 transitions, 13359 flow [2021-03-25 12:14:20,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 467 transitions, 12806 flow, removed 59 selfloop flow, removed 15 redundant places. [2021-03-25 12:14:20,705 INFO L241 Difference]: Finished difference. Result has 395 places, 463 transitions, 11881 flow [2021-03-25 12:14:20,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=11859, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11881, PETRI_PLACES=395, PETRI_TRANSITIONS=463} [2021-03-25 12:14:20,705 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 348 predicate places. [2021-03-25 12:14:20,705 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:20,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 463 transitions, 11881 flow [2021-03-25 12:14:20,706 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 463 transitions, 11881 flow [2021-03-25 12:14:20,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 391 places, 463 transitions, 11881 flow [2021-03-25 12:14:20,820 INFO L129 PetriNetUnfolder]: 325/759 cut-off events. [2021-03-25 12:14:20,820 INFO L130 PetriNetUnfolder]: For 56106/56220 co-relation queries the response was YES. [2021-03-25 12:14:20,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11172 conditions, 759 events. 325/759 cut-off events. For 56106/56220 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5061 event pairs, 12 based on Foata normal form. 21/776 useless extension candidates. Maximal degree in co-relation 11010. Up to 283 conditions per place. [2021-03-25 12:14:20,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 464 [2021-03-25 12:14:20,858 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:20,858 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:20,858 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 12:14:20,859 INFO L480 AbstractCegarLoop]: Abstraction has has 391 places, 463 transitions, 11881 flow [2021-03-25 12:14:20,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:20,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:20,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:20,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-25 12:14:20,859 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:20,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:20,859 INFO L82 PathProgramCache]: Analyzing trace with hash -905566421, now seen corresponding path program 90 times [2021-03-25 12:14:20,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:20,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573841330] [2021-03-25 12:14:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:20,865 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:20,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:20,869 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:20,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:20,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:20,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:20,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:20,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:20,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:20,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:20,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:20,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:20,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:20,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:20,916 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:14:20,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:20,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:20,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:20,931 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:20,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:20,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573841330] [2021-03-25 12:14:20,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:20,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:20,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788098228] [2021-03-25 12:14:20,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:20,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:20,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:20,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:20,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:20,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 463 transitions, 11881 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:20,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:20,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:20,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:21,372 INFO L129 PetriNetUnfolder]: 363/831 cut-off events. [2021-03-25 12:14:21,373 INFO L130 PetriNetUnfolder]: For 57500/57523 co-relation queries the response was YES. [2021-03-25 12:14:21,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12630 conditions, 831 events. 363/831 cut-off events. For 57500/57523 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5385 event pairs, 30 based on Foata normal form. 10/839 useless extension candidates. Maximal degree in co-relation 12466. Up to 687 conditions per place. [2021-03-25 12:14:21,385 INFO L132 encePairwiseOnDemand]: 79/91 looper letters, 395 selfloop transitions, 66 changer transitions 2/471 dead transitions. [2021-03-25 12:14:21,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 471 transitions, 13070 flow [2021-03-25 12:14:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 339 transitions. [2021-03-25 12:14:21,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3386613386613387 [2021-03-25 12:14:21,386 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 339 transitions. [2021-03-25 12:14:21,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 339 transitions. [2021-03-25 12:14:21,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:21,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 339 transitions. [2021-03-25 12:14:21,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.818181818181817) internal successors, (339), 11 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:21,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:21,387 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:21,387 INFO L185 Difference]: Start difference. First operand has 391 places, 463 transitions, 11881 flow. Second operand 11 states and 339 transitions. [2021-03-25 12:14:21,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 471 transitions, 13070 flow [2021-03-25 12:14:21,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 471 transitions, 13010 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:21,719 INFO L241 Difference]: Finished difference. Result has 395 places, 466 transitions, 12148 flow [2021-03-25 12:14:21,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=11821, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12148, PETRI_PLACES=395, PETRI_TRANSITIONS=466} [2021-03-25 12:14:21,719 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 348 predicate places. [2021-03-25 12:14:21,719 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:21,719 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 466 transitions, 12148 flow [2021-03-25 12:14:21,719 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 466 transitions, 12148 flow [2021-03-25 12:14:21,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 466 transitions, 12148 flow [2021-03-25 12:14:21,843 INFO L129 PetriNetUnfolder]: 326/764 cut-off events. [2021-03-25 12:14:21,843 INFO L130 PetriNetUnfolder]: For 56953/57089 co-relation queries the response was YES. [2021-03-25 12:14:21,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11355 conditions, 764 events. 326/764 cut-off events. For 56953/57089 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5111 event pairs, 21 based on Foata normal form. 23/778 useless extension candidates. Maximal degree in co-relation 11178. Up to 284 conditions per place. [2021-03-25 12:14:21,857 INFO L142 LiptonReduction]: Number of co-enabled transitions 470 [2021-03-25 12:14:21,881 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:21,881 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:21,908 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-25 12:14:21,908 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 466 transitions, 12148 flow [2021-03-25 12:14:21,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:21,908 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:21,908 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:21,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-25 12:14:21,908 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:21,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:21,908 INFO L82 PathProgramCache]: Analyzing trace with hash 482492603, now seen corresponding path program 91 times [2021-03-25 12:14:21,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:21,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370213156] [2021-03-25 12:14:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:21,916 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:21,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:21,920 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:21,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:21,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:21,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:21,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:21,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:21,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:21,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:21,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:21,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:21,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:21,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:21,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:21,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:21,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:21,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:21,997 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:21,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:21,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370213156] [2021-03-25 12:14:21,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:21,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:21,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056401338] [2021-03-25 12:14:21,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:21,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:22,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:22,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:22,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:22,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 466 transitions, 12148 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:22,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:22,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:22,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:22,448 INFO L129 PetriNetUnfolder]: 363/837 cut-off events. [2021-03-25 12:14:22,448 INFO L130 PetriNetUnfolder]: For 58818/58841 co-relation queries the response was YES. [2021-03-25 12:14:22,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12818 conditions, 837 events. 363/837 cut-off events. For 58818/58841 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5452 event pairs, 25 based on Foata normal form. 12/848 useless extension candidates. Maximal degree in co-relation 12637. Up to 658 conditions per place. [2021-03-25 12:14:22,460 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 364 selfloop transitions, 88 changer transitions 15/475 dead transitions. [2021-03-25 12:14:22,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 475 transitions, 13284 flow [2021-03-25 12:14:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 373 transitions. [2021-03-25 12:14:22,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3415750915750916 [2021-03-25 12:14:22,461 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 373 transitions. [2021-03-25 12:14:22,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 373 transitions. [2021-03-25 12:14:22,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:22,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 373 transitions. [2021-03-25 12:14:22,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:22,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:22,462 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:22,462 INFO L185 Difference]: Start difference. First operand has 395 places, 466 transitions, 12148 flow. Second operand 12 states and 373 transitions. [2021-03-25 12:14:22,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 475 transitions, 13284 flow [2021-03-25 12:14:22,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 475 transitions, 12993 flow, removed 44 selfloop flow, removed 11 redundant places. [2021-03-25 12:14:22,782 INFO L241 Difference]: Finished difference. Result has 399 places, 457 transitions, 11870 flow [2021-03-25 12:14:22,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=11859, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11870, PETRI_PLACES=399, PETRI_TRANSITIONS=457} [2021-03-25 12:14:22,782 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 352 predicate places. [2021-03-25 12:14:22,782 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:22,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 399 places, 457 transitions, 11870 flow [2021-03-25 12:14:22,782 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 399 places, 457 transitions, 11870 flow [2021-03-25 12:14:22,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 457 transitions, 11870 flow [2021-03-25 12:14:22,896 INFO L129 PetriNetUnfolder]: 318/750 cut-off events. [2021-03-25 12:14:22,896 INFO L130 PetriNetUnfolder]: For 57335/57398 co-relation queries the response was YES. [2021-03-25 12:14:22,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11147 conditions, 750 events. 318/750 cut-off events. For 57335/57398 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4970 event pairs, 22 based on Foata normal form. 21/770 useless extension candidates. Maximal degree in co-relation 10983. Up to 279 conditions per place. [2021-03-25 12:14:22,910 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-25 12:14:22,933 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:22,933 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:22,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-25 12:14:22,933 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 457 transitions, 11870 flow [2021-03-25 12:14:22,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:22,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:22,933 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:22,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-25 12:14:22,933 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:22,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:22,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1053947409, now seen corresponding path program 92 times [2021-03-25 12:14:22,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:22,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73508249] [2021-03-25 12:14:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:22,946 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:22,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:22,950 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:22,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:22,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:22,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:22,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:22,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:22,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:22,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:22,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:23,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:23,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:23,032 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:23,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:23,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:23,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73508249] [2021-03-25 12:14:23,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:23,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:23,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092512231] [2021-03-25 12:14:23,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:23,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:23,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:23,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:23,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:23,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 457 transitions, 11870 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:23,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:23,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:23,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:23,489 INFO L129 PetriNetUnfolder]: 357/819 cut-off events. [2021-03-25 12:14:23,489 INFO L130 PetriNetUnfolder]: For 59046/59061 co-relation queries the response was YES. [2021-03-25 12:14:23,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12589 conditions, 819 events. 357/819 cut-off events. For 59046/59061 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5284 event pairs, 37 based on Foata normal form. 10/828 useless extension candidates. Maximal degree in co-relation 12423. Up to 657 conditions per place. [2021-03-25 12:14:23,502 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 363 selfloop transitions, 90 changer transitions 2/463 dead transitions. [2021-03-25 12:14:23,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 463 transitions, 12907 flow [2021-03-25 12:14:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:14:23,503 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34665334665334663 [2021-03-25 12:14:23,503 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:14:23,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:14:23,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:23,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:14:23,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:23,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:23,504 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:23,504 INFO L185 Difference]: Start difference. First operand has 395 places, 457 transitions, 11870 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:14:23,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 463 transitions, 12907 flow [2021-03-25 12:14:23,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 463 transitions, 12709 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-03-25 12:14:23,830 INFO L241 Difference]: Finished difference. Result has 396 places, 458 transitions, 11931 flow [2021-03-25 12:14:23,830 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=11674, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11931, PETRI_PLACES=396, PETRI_TRANSITIONS=458} [2021-03-25 12:14:23,830 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 349 predicate places. [2021-03-25 12:14:23,830 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:23,830 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 458 transitions, 11931 flow [2021-03-25 12:14:23,830 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 458 transitions, 11931 flow [2021-03-25 12:14:23,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 458 transitions, 11931 flow [2021-03-25 12:14:23,952 INFO L129 PetriNetUnfolder]: 317/752 cut-off events. [2021-03-25 12:14:23,952 INFO L130 PetriNetUnfolder]: For 55454/55517 co-relation queries the response was YES. [2021-03-25 12:14:23,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11181 conditions, 752 events. 317/752 cut-off events. For 55454/55517 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5032 event pairs, 11 based on Foata normal form. 21/772 useless extension candidates. Maximal degree in co-relation 11004. Up to 278 conditions per place. [2021-03-25 12:14:23,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 462 [2021-03-25 12:14:23,991 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:23,991 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:23,991 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-25 12:14:23,992 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 458 transitions, 11931 flow [2021-03-25 12:14:23,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:23,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:23,992 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:23,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-25 12:14:23,992 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:23,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1382261575, now seen corresponding path program 93 times [2021-03-25 12:14:23,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:23,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222527524] [2021-03-25 12:14:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:24,000 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:24,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:24,004 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:24,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:24,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:24,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:24,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:24,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:24,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:24,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:24,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:24,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:24,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:24,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:24,053 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:24,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:24,088 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:24,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:24,105 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:24,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:24,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222527524] [2021-03-25 12:14:24,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:24,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:24,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967168990] [2021-03-25 12:14:24,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:24,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:24,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:24,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:24,110 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:24,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 458 transitions, 11931 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:24,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:24,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:24,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:24,583 INFO L129 PetriNetUnfolder]: 358/848 cut-off events. [2021-03-25 12:14:24,583 INFO L130 PetriNetUnfolder]: For 60617/60640 co-relation queries the response was YES. [2021-03-25 12:14:24,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12923 conditions, 848 events. 358/848 cut-off events. For 60617/60640 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5660 event pairs, 33 based on Foata normal form. 12/859 useless extension candidates. Maximal degree in co-relation 12742. Up to 551 conditions per place. [2021-03-25 12:14:24,595 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 269 selfloop transitions, 199 changer transitions 4/480 dead transitions. [2021-03-25 12:14:24,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 480 transitions, 13514 flow [2021-03-25 12:14:24,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 351 transitions. [2021-03-25 12:14:24,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35064935064935066 [2021-03-25 12:14:24,597 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 351 transitions. [2021-03-25 12:14:24,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 351 transitions. [2021-03-25 12:14:24,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:24,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 351 transitions. [2021-03-25 12:14:24,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:24,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:24,598 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:24,598 INFO L185 Difference]: Start difference. First operand has 395 places, 458 transitions, 11931 flow. Second operand 11 states and 351 transitions. [2021-03-25 12:14:24,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 480 transitions, 13514 flow [2021-03-25 12:14:24,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 480 transitions, 13356 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:24,942 INFO L241 Difference]: Finished difference. Result has 402 places, 468 transitions, 12629 flow [2021-03-25 12:14:24,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=11788, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12629, PETRI_PLACES=402, PETRI_TRANSITIONS=468} [2021-03-25 12:14:24,943 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 355 predicate places. [2021-03-25 12:14:24,943 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:24,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 468 transitions, 12629 flow [2021-03-25 12:14:24,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 468 transitions, 12629 flow [2021-03-25 12:14:24,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 468 transitions, 12629 flow [2021-03-25 12:14:25,069 INFO L129 PetriNetUnfolder]: 318/783 cut-off events. [2021-03-25 12:14:25,070 INFO L130 PetriNetUnfolder]: For 58739/58841 co-relation queries the response was YES. [2021-03-25 12:14:25,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11753 conditions, 783 events. 318/783 cut-off events. For 58739/58841 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5392 event pairs, 8 based on Foata normal form. 14/795 useless extension candidates. Maximal degree in co-relation 11589. Up to 281 conditions per place. [2021-03-25 12:14:25,089 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:14:25,114 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:25,115 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:25,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 12:14:25,115 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 468 transitions, 12629 flow [2021-03-25 12:14:25,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:25,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:25,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:25,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-25 12:14:25,115 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:25,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:25,115 INFO L82 PathProgramCache]: Analyzing trace with hash 749448765, now seen corresponding path program 94 times [2021-03-25 12:14:25,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:25,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317713170] [2021-03-25 12:14:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:25,123 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:25,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:25,127 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:25,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:25,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:25,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:25,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:25,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:25,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:25,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:25,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:25,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:25,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:25,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:25,185 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:14:25,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:25,188 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:25,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:25,201 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:25,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:25,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:25,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317713170] [2021-03-25 12:14:25,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:25,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:25,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888749531] [2021-03-25 12:14:25,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:25,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:25,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:25,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:25,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:25,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 468 transitions, 12629 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:25,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:25,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:25,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:25,724 INFO L129 PetriNetUnfolder]: 359/860 cut-off events. [2021-03-25 12:14:25,724 INFO L130 PetriNetUnfolder]: For 63901/63924 co-relation queries the response was YES. [2021-03-25 12:14:25,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13318 conditions, 860 events. 359/860 cut-off events. For 63901/63924 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5773 event pairs, 28 based on Foata normal form. 13/872 useless extension candidates. Maximal degree in co-relation 13152. Up to 641 conditions per place. [2021-03-25 12:14:25,738 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 339 selfloop transitions, 117 changer transitions 16/480 dead transitions. [2021-03-25 12:14:25,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 480 transitions, 14048 flow [2021-03-25 12:14:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 354 transitions. [2021-03-25 12:14:25,739 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35364635364635366 [2021-03-25 12:14:25,739 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 354 transitions. [2021-03-25 12:14:25,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 354 transitions. [2021-03-25 12:14:25,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:25,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 354 transitions. [2021-03-25 12:14:25,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:25,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:25,740 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:25,740 INFO L185 Difference]: Start difference. First operand has 401 places, 468 transitions, 12629 flow. Second operand 11 states and 354 transitions. [2021-03-25 12:14:25,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 480 transitions, 14048 flow [2021-03-25 12:14:26,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 480 transitions, 13862 flow, removed 42 selfloop flow, removed 5 redundant places. [2021-03-25 12:14:26,123 INFO L241 Difference]: Finished difference. Result has 411 places, 460 transitions, 12587 flow [2021-03-25 12:14:26,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12443, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12587, PETRI_PLACES=411, PETRI_TRANSITIONS=460} [2021-03-25 12:14:26,123 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 364 predicate places. [2021-03-25 12:14:26,123 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:26,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 460 transitions, 12587 flow [2021-03-25 12:14:26,123 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 460 transitions, 12587 flow [2021-03-25 12:14:26,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 460 transitions, 12587 flow [2021-03-25 12:14:26,253 INFO L129 PetriNetUnfolder]: 312/770 cut-off events. [2021-03-25 12:14:26,254 INFO L130 PetriNetUnfolder]: For 61686/61807 co-relation queries the response was YES. [2021-03-25 12:14:26,262 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11714 conditions, 770 events. 312/770 cut-off events. For 61686/61807 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5353 event pairs, 24 based on Foata normal form. 20/784 useless extension candidates. Maximal degree in co-relation 11544. Up to 274 conditions per place. [2021-03-25 12:14:26,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:14:26,295 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:26,295 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:26,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 12:14:26,295 INFO L480 AbstractCegarLoop]: Abstraction has has 409 places, 460 transitions, 12587 flow [2021-03-25 12:14:26,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:26,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:26,295 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:26,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-25 12:14:26,296 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:26,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:26,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1391775911, now seen corresponding path program 95 times [2021-03-25 12:14:26,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:26,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590360549] [2021-03-25 12:14:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:26,320 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:26,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:26,325 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:26,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:26,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:26,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:26,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:26,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:26,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:26,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:26,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:26,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:26,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:26,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:26,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:26,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:26,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:26,392 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:26,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:26,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590360549] [2021-03-25 12:14:26,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:26,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:26,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079846106] [2021-03-25 12:14:26,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:26,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:26,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:26,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:26,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:26,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 460 transitions, 12587 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:26,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:26,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:26,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:26,815 INFO L129 PetriNetUnfolder]: 353/843 cut-off events. [2021-03-25 12:14:26,815 INFO L130 PetriNetUnfolder]: For 64044/64067 co-relation queries the response was YES. [2021-03-25 12:14:26,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13276 conditions, 843 events. 353/843 cut-off events. For 64044/64067 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5654 event pairs, 37 based on Foata normal form. 10/851 useless extension candidates. Maximal degree in co-relation 13104. Up to 622 conditions per place. [2021-03-25 12:14:26,829 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 312 selfloop transitions, 147 changer transitions 2/469 dead transitions. [2021-03-25 12:14:26,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 469 transitions, 13794 flow [2021-03-25 12:14:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2021-03-25 12:14:26,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34725274725274724 [2021-03-25 12:14:26,830 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 316 transitions. [2021-03-25 12:14:26,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 316 transitions. [2021-03-25 12:14:26,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:26,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 316 transitions. [2021-03-25 12:14:26,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.6) internal successors, (316), 10 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:26,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:26,831 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:26,831 INFO L185 Difference]: Start difference. First operand has 409 places, 460 transitions, 12587 flow. Second operand 10 states and 316 transitions. [2021-03-25 12:14:26,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 469 transitions, 13794 flow [2021-03-25 12:14:27,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 469 transitions, 13432 flow, removed 18 selfloop flow, removed 12 redundant places. [2021-03-25 12:14:27,203 INFO L241 Difference]: Finished difference. Result has 409 places, 463 transitions, 12769 flow [2021-03-25 12:14:27,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12227, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12769, PETRI_PLACES=409, PETRI_TRANSITIONS=463} [2021-03-25 12:14:27,203 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 362 predicate places. [2021-03-25 12:14:27,203 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:27,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 463 transitions, 12769 flow [2021-03-25 12:14:27,204 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 463 transitions, 12769 flow [2021-03-25 12:14:27,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 408 places, 463 transitions, 12769 flow [2021-03-25 12:14:27,343 INFO L129 PetriNetUnfolder]: 313/773 cut-off events. [2021-03-25 12:14:27,343 INFO L130 PetriNetUnfolder]: For 62870/62961 co-relation queries the response was YES. [2021-03-25 12:14:27,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11898 conditions, 773 events. 313/773 cut-off events. For 62870/62961 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5347 event pairs, 10 based on Foata normal form. 18/790 useless extension candidates. Maximal degree in co-relation 11696. Up to 271 conditions per place. [2021-03-25 12:14:27,361 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:14:27,386 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:27,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:27,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-03-25 12:14:27,386 INFO L480 AbstractCegarLoop]: Abstraction has has 408 places, 463 transitions, 12769 flow [2021-03-25 12:14:27,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:27,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:27,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:27,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-25 12:14:27,386 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash -438494415, now seen corresponding path program 96 times [2021-03-25 12:14:27,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:27,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660081390] [2021-03-25 12:14:27,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:27,395 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:27,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:27,400 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:27,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:27,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:27,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:27,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:27,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:27,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:27,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:27,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:27,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:27,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:27,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:27,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:27,463 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:27,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:27,467 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:27,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:27,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660081390] [2021-03-25 12:14:27,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:27,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:27,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59133756] [2021-03-25 12:14:27,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:27,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:27,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:27,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:27,471 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:27,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 463 transitions, 12769 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:27,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:27,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:27,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:27,898 INFO L129 PetriNetUnfolder]: 356/845 cut-off events. [2021-03-25 12:14:27,898 INFO L130 PetriNetUnfolder]: For 65681/65704 co-relation queries the response was YES. [2021-03-25 12:14:27,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13444 conditions, 845 events. 356/845 cut-off events. For 65681/65704 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5618 event pairs, 40 based on Foata normal form. 8/850 useless extension candidates. Maximal degree in co-relation 13236. Up to 689 conditions per place. [2021-03-25 12:14:27,912 INFO L132 encePairwiseOnDemand]: 80/91 looper letters, 383 selfloop transitions, 79 changer transitions 3/473 dead transitions. [2021-03-25 12:14:27,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 473 transitions, 14125 flow [2021-03-25 12:14:27,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2021-03-25 12:14:27,913 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34835164835164834 [2021-03-25 12:14:27,913 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 317 transitions. [2021-03-25 12:14:27,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 317 transitions. [2021-03-25 12:14:27,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:27,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 317 transitions. [2021-03-25 12:14:27,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:27,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:27,914 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:27,914 INFO L185 Difference]: Start difference. First operand has 408 places, 463 transitions, 12769 flow. Second operand 10 states and 317 transitions. [2021-03-25 12:14:27,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 473 transitions, 14125 flow [2021-03-25 12:14:28,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 473 transitions, 13651 flow, removed 65 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:28,333 INFO L241 Difference]: Finished difference. Result has 412 places, 468 transitions, 12725 flow [2021-03-25 12:14:28,333 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12307, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12725, PETRI_PLACES=412, PETRI_TRANSITIONS=468} [2021-03-25 12:14:28,333 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 365 predicate places. [2021-03-25 12:14:28,333 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:28,333 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 412 places, 468 transitions, 12725 flow [2021-03-25 12:14:28,333 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 412 places, 468 transitions, 12725 flow [2021-03-25 12:14:28,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 412 places, 468 transitions, 12725 flow [2021-03-25 12:14:28,457 INFO L129 PetriNetUnfolder]: 313/772 cut-off events. [2021-03-25 12:14:28,457 INFO L130 PetriNetUnfolder]: For 64197/64305 co-relation queries the response was YES. [2021-03-25 12:14:28,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11753 conditions, 772 events. 313/772 cut-off events. For 64197/64305 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5327 event pairs, 11 based on Foata normal form. 21/791 useless extension candidates. Maximal degree in co-relation 11550. Up to 275 conditions per place. [2021-03-25 12:14:28,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:14:28,498 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:28,498 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:28,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 165 [2021-03-25 12:14:28,499 INFO L480 AbstractCegarLoop]: Abstraction has has 412 places, 468 transitions, 12725 flow [2021-03-25 12:14:28,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:28,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:28,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:28,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-25 12:14:28,499 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:28,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:28,499 INFO L82 PathProgramCache]: Analyzing trace with hash -729894367, now seen corresponding path program 97 times [2021-03-25 12:14:28,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:28,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101516342] [2021-03-25 12:14:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:28,506 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:28,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:28,510 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:28,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:28,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:28,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:28,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:28,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:28,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:28,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:28,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:28,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:28,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:28,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:28,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:28,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:28,560 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:28,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:28,572 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:28,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:28,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101516342] [2021-03-25 12:14:28,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:28,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:28,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215273820] [2021-03-25 12:14:28,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:28,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:28,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:28,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:28,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:28,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 468 transitions, 12725 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:28,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:28,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:28,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:29,029 INFO L129 PetriNetUnfolder]: 355/846 cut-off events. [2021-03-25 12:14:29,029 INFO L130 PetriNetUnfolder]: For 65429/65452 co-relation queries the response was YES. [2021-03-25 12:14:29,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13274 conditions, 846 events. 355/846 cut-off events. For 65429/65452 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5664 event pairs, 35 based on Foata normal form. 12/857 useless extension candidates. Maximal degree in co-relation 13065. Up to 650 conditions per place. [2021-03-25 12:14:29,042 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 350 selfloop transitions, 110 changer transitions 7/475 dead transitions. [2021-03-25 12:14:29,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 475 transitions, 13836 flow [2021-03-25 12:14:29,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:14:29,043 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34065934065934067 [2021-03-25 12:14:29,043 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:14:29,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:14:29,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:29,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:14:29,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:29,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:29,044 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:29,044 INFO L185 Difference]: Start difference. First operand has 412 places, 468 transitions, 12725 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:14:29,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 475 transitions, 13836 flow [2021-03-25 12:14:29,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 475 transitions, 13569 flow, removed 70 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:29,454 INFO L241 Difference]: Finished difference. Result has 421 places, 466 transitions, 12660 flow [2021-03-25 12:14:29,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12458, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12660, PETRI_PLACES=421, PETRI_TRANSITIONS=466} [2021-03-25 12:14:29,455 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 374 predicate places. [2021-03-25 12:14:29,455 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:29,455 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 466 transitions, 12660 flow [2021-03-25 12:14:29,455 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 466 transitions, 12660 flow [2021-03-25 12:14:29,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 417 places, 466 transitions, 12660 flow [2021-03-25 12:14:29,591 INFO L129 PetriNetUnfolder]: 320/792 cut-off events. [2021-03-25 12:14:29,592 INFO L130 PetriNetUnfolder]: For 62722/62758 co-relation queries the response was YES. [2021-03-25 12:14:29,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12080 conditions, 792 events. 320/792 cut-off events. For 62722/62758 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5491 event pairs, 19 based on Foata normal form. 15/806 useless extension candidates. Maximal degree in co-relation 11907. Up to 278 conditions per place. [2021-03-25 12:14:29,611 INFO L142 LiptonReduction]: Number of co-enabled transitions 490 [2021-03-25 12:14:29,635 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:29,636 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:29,636 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 12:14:29,636 INFO L480 AbstractCegarLoop]: Abstraction has has 417 places, 466 transitions, 12660 flow [2021-03-25 12:14:29,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:29,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:29,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:29,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-25 12:14:29,636 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:29,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1956757747, now seen corresponding path program 98 times [2021-03-25 12:14:29,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:29,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710876909] [2021-03-25 12:14:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:29,642 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:29,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:29,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:29,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:29,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:29,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:29,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:29,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:29,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:29,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:29,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:29,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:29,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:29,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:29,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:29,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:29,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:29,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:29,710 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:29,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:29,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:29,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710876909] [2021-03-25 12:14:29,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:29,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:29,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677345850] [2021-03-25 12:14:29,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:29,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:29,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:29,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:29,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:29,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 466 transitions, 12660 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:29,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:29,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:29,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:30,144 INFO L129 PetriNetUnfolder]: 354/850 cut-off events. [2021-03-25 12:14:30,144 INFO L130 PetriNetUnfolder]: For 64747/64770 co-relation queries the response was YES. [2021-03-25 12:14:30,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13311 conditions, 850 events. 354/850 cut-off events. For 64747/64770 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5730 event pairs, 40 based on Foata normal form. 10/858 useless extension candidates. Maximal degree in co-relation 13136. Up to 669 conditions per place. [2021-03-25 12:14:30,157 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 367 selfloop transitions, 92 changer transitions 6/473 dead transitions. [2021-03-25 12:14:30,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 473 transitions, 13787 flow [2021-03-25 12:14:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:30,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 340 transitions. [2021-03-25 12:14:30,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33966033966033965 [2021-03-25 12:14:30,158 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 340 transitions. [2021-03-25 12:14:30,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 340 transitions. [2021-03-25 12:14:30,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:30,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 340 transitions. [2021-03-25 12:14:30,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:30,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:30,159 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:30,159 INFO L185 Difference]: Start difference. First operand has 417 places, 466 transitions, 12660 flow. Second operand 11 states and 340 transitions. [2021-03-25 12:14:30,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 473 transitions, 13787 flow [2021-03-25 12:14:30,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 473 transitions, 13581 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:30,529 INFO L241 Difference]: Finished difference. Result has 421 places, 466 transitions, 12659 flow [2021-03-25 12:14:30,530 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12464, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12659, PETRI_PLACES=421, PETRI_TRANSITIONS=466} [2021-03-25 12:14:30,530 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 374 predicate places. [2021-03-25 12:14:30,530 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:30,530 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 466 transitions, 12659 flow [2021-03-25 12:14:30,530 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 466 transitions, 12659 flow [2021-03-25 12:14:30,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 418 places, 466 transitions, 12659 flow [2021-03-25 12:14:30,652 INFO L129 PetriNetUnfolder]: 310/770 cut-off events. [2021-03-25 12:14:30,652 INFO L130 PetriNetUnfolder]: For 63213/63307 co-relation queries the response was YES. [2021-03-25 12:14:30,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11752 conditions, 770 events. 310/770 cut-off events. For 63213/63307 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5343 event pairs, 11 based on Foata normal form. 21/790 useless extension candidates. Maximal degree in co-relation 11579. Up to 273 conditions per place. [2021-03-25 12:14:30,667 INFO L142 LiptonReduction]: Number of co-enabled transitions 490 [2021-03-25 12:14:30,691 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:30,691 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:30,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-03-25 12:14:30,692 INFO L480 AbstractCegarLoop]: Abstraction has has 418 places, 466 transitions, 12659 flow [2021-03-25 12:14:30,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:30,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:30,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:30,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-25 12:14:30,692 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:30,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash 2095234353, now seen corresponding path program 99 times [2021-03-25 12:14:30,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:30,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355849240] [2021-03-25 12:14:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:30,715 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:30,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:30,719 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:30,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:30,725 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:14:30,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:14:30,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:30,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:30,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:30,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:30,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:30,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:30,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:30,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:30,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:30,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:30,779 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:30,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:30,782 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:30,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:30,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355849240] [2021-03-25 12:14:30,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:30,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:30,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381375942] [2021-03-25 12:14:30,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:30,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:30,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:30,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:30,785 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:30,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 466 transitions, 12659 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:30,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:30,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:30,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:31,217 INFO L129 PetriNetUnfolder]: 354/849 cut-off events. [2021-03-25 12:14:31,217 INFO L130 PetriNetUnfolder]: For 66074/66103 co-relation queries the response was YES. [2021-03-25 12:14:31,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13389 conditions, 849 events. 354/849 cut-off events. For 66074/66103 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5740 event pairs, 41 based on Foata normal form. 16/863 useless extension candidates. Maximal degree in co-relation 13214. Up to 646 conditions per place. [2021-03-25 12:14:31,230 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 345 selfloop transitions, 118 changer transitions 7/478 dead transitions. [2021-03-25 12:14:31,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 478 transitions, 14125 flow [2021-03-25 12:14:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:31,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2021-03-25 12:14:31,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34835164835164834 [2021-03-25 12:14:31,231 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 317 transitions. [2021-03-25 12:14:31,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 317 transitions. [2021-03-25 12:14:31,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:31,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 317 transitions. [2021-03-25 12:14:31,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:31,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:31,232 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:31,232 INFO L185 Difference]: Start difference. First operand has 418 places, 466 transitions, 12659 flow. Second operand 10 states and 317 transitions. [2021-03-25 12:14:31,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 478 transitions, 14125 flow [2021-03-25 12:14:31,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 478 transitions, 13931 flow, removed 7 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:31,605 INFO L241 Difference]: Finished difference. Result has 423 places, 469 transitions, 12914 flow [2021-03-25 12:14:31,605 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12469, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12914, PETRI_PLACES=423, PETRI_TRANSITIONS=469} [2021-03-25 12:14:31,605 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 376 predicate places. [2021-03-25 12:14:31,605 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:31,605 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 469 transitions, 12914 flow [2021-03-25 12:14:31,605 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 469 transitions, 12914 flow [2021-03-25 12:14:31,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 422 places, 469 transitions, 12914 flow [2021-03-25 12:14:31,726 INFO L129 PetriNetUnfolder]: 314/776 cut-off events. [2021-03-25 12:14:31,726 INFO L130 PetriNetUnfolder]: For 64819/64955 co-relation queries the response was YES. [2021-03-25 12:14:31,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12062 conditions, 776 events. 314/776 cut-off events. For 64819/64955 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5414 event pairs, 13 based on Foata normal form. 19/790 useless extension candidates. Maximal degree in co-relation 11853. Up to 279 conditions per place. [2021-03-25 12:14:31,740 INFO L142 LiptonReduction]: Number of co-enabled transitions 490 [2021-03-25 12:14:31,764 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:31,764 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:31,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-03-25 12:14:31,765 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 469 transitions, 12914 flow [2021-03-25 12:14:31,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:31,765 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:31,765 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:31,765 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-25 12:14:31,765 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:31,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:31,765 INFO L82 PathProgramCache]: Analyzing trace with hash -86267713, now seen corresponding path program 100 times [2021-03-25 12:14:31,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:31,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745325652] [2021-03-25 12:14:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:31,772 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:31,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:31,776 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:31,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:31,782 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:14:31,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:14:31,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:31,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:31,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:31,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:31,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:31,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:31,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:31,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:31,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:31,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:31,822 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:31,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:31,827 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:31,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:31,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:31,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745325652] [2021-03-25 12:14:31,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:31,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:14:31,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084068631] [2021-03-25 12:14:31,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:14:31,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:31,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:14:31,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:14:31,829 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:31,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 469 transitions, 12914 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:31,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:31,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:31,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:32,200 INFO L129 PetriNetUnfolder]: 351/844 cut-off events. [2021-03-25 12:14:32,200 INFO L130 PetriNetUnfolder]: For 66190/66205 co-relation queries the response was YES. [2021-03-25 12:14:32,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13419 conditions, 844 events. 351/844 cut-off events. For 66190/66205 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5722 event pairs, 38 based on Foata normal form. 8/850 useless extension candidates. Maximal degree in co-relation 13204. Up to 699 conditions per place. [2021-03-25 12:14:32,214 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 428 selfloop transitions, 37 changer transitions 2/475 dead transitions. [2021-03-25 12:14:32,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 475 transitions, 13990 flow [2021-03-25 12:14:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:14:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:14:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-03-25 12:14:32,215 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33821733821733824 [2021-03-25 12:14:32,215 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-03-25 12:14:32,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-03-25 12:14:32,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:32,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-03-25 12:14:32,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:32,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:32,216 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:32,216 INFO L185 Difference]: Start difference. First operand has 422 places, 469 transitions, 12914 flow. Second operand 9 states and 277 transitions. [2021-03-25 12:14:32,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 475 transitions, 13990 flow [2021-03-25 12:14:32,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 475 transitions, 13650 flow, removed 22 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:32,630 INFO L241 Difference]: Finished difference. Result has 424 places, 471 transitions, 12735 flow [2021-03-25 12:14:32,630 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12579, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12735, PETRI_PLACES=424, PETRI_TRANSITIONS=471} [2021-03-25 12:14:32,630 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 377 predicate places. [2021-03-25 12:14:32,630 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:32,630 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 471 transitions, 12735 flow [2021-03-25 12:14:32,631 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 471 transitions, 12735 flow [2021-03-25 12:14:32,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 423 places, 471 transitions, 12735 flow [2021-03-25 12:14:32,756 INFO L129 PetriNetUnfolder]: 306/766 cut-off events. [2021-03-25 12:14:32,756 INFO L130 PetriNetUnfolder]: For 61219/61321 co-relation queries the response was YES. [2021-03-25 12:14:32,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11610 conditions, 766 events. 306/766 cut-off events. For 61219/61321 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5330 event pairs, 10 based on Foata normal form. 24/789 useless extension candidates. Maximal degree in co-relation 11402. Up to 269 conditions per place. [2021-03-25 12:14:32,770 INFO L142 LiptonReduction]: Number of co-enabled transitions 492 [2021-03-25 12:14:32,794 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:32,794 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:32,794 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 164 [2021-03-25 12:14:32,794 INFO L480 AbstractCegarLoop]: Abstraction has has 423 places, 471 transitions, 12735 flow [2021-03-25 12:14:32,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:32,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:32,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:32,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-25 12:14:32,795 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:32,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1549874561, now seen corresponding path program 101 times [2021-03-25 12:14:32,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:32,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454847679] [2021-03-25 12:14:32,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:32,802 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:32,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:32,807 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:32,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:32,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:32,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:32,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:32,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:32,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:32,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:32,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:32,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:32,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:32,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:32,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:32,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:32,870 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:32,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:32,876 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:32,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:32,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454847679] [2021-03-25 12:14:32,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:32,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:32,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399602132] [2021-03-25 12:14:32,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:32,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:32,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:32,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:32,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:32,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 471 transitions, 12735 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:32,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:32,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:32,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:33,304 INFO L129 PetriNetUnfolder]: 351/844 cut-off events. [2021-03-25 12:14:33,304 INFO L130 PetriNetUnfolder]: For 64960/64983 co-relation queries the response was YES. [2021-03-25 12:14:33,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13228 conditions, 844 events. 351/844 cut-off events. For 64960/64983 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5707 event pairs, 34 based on Foata normal form. 10/852 useless extension candidates. Maximal degree in co-relation 13014. Up to 643 conditions per place. [2021-03-25 12:14:33,315 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 329 selfloop transitions, 138 changer transitions 2/477 dead transitions. [2021-03-25 12:14:33,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 477 transitions, 13842 flow [2021-03-25 12:14:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 314 transitions. [2021-03-25 12:14:33,316 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34505494505494505 [2021-03-25 12:14:33,316 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 314 transitions. [2021-03-25 12:14:33,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 314 transitions. [2021-03-25 12:14:33,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:33,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 314 transitions. [2021-03-25 12:14:33,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:33,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:33,317 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:33,317 INFO L185 Difference]: Start difference. First operand has 423 places, 471 transitions, 12735 flow. Second operand 10 states and 314 transitions. [2021-03-25 12:14:33,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 477 transitions, 13842 flow [2021-03-25 12:14:33,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 477 transitions, 13740 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-25 12:14:33,671 INFO L241 Difference]: Finished difference. Result has 429 places, 473 transitions, 13105 flow [2021-03-25 12:14:33,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12635, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13105, PETRI_PLACES=429, PETRI_TRANSITIONS=473} [2021-03-25 12:14:33,672 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 382 predicate places. [2021-03-25 12:14:33,672 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:33,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 473 transitions, 13105 flow [2021-03-25 12:14:33,672 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 473 transitions, 13105 flow [2021-03-25 12:14:33,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 428 places, 473 transitions, 13105 flow [2021-03-25 12:14:33,847 INFO L129 PetriNetUnfolder]: 309/776 cut-off events. [2021-03-25 12:14:33,847 INFO L130 PetriNetUnfolder]: For 63153/63245 co-relation queries the response was YES. [2021-03-25 12:14:33,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11960 conditions, 776 events. 309/776 cut-off events. For 63153/63245 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5486 event pairs, 12 based on Foata normal form. 19/794 useless extension candidates. Maximal degree in co-relation 11750. Up to 272 conditions per place. [2021-03-25 12:14:33,871 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:14:33,907 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:33,908 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:33,908 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 236 [2021-03-25 12:14:33,908 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 473 transitions, 13105 flow [2021-03-25 12:14:33,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:33,908 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:33,908 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:33,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-25 12:14:33,908 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:33,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:33,909 INFO L82 PathProgramCache]: Analyzing trace with hash 420974761, now seen corresponding path program 102 times [2021-03-25 12:14:33,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:33,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871200442] [2021-03-25 12:14:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:33,917 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:33,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:33,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:33,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:33,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:33,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:33,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:33,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:33,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:33,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:33,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:33,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:33,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:33,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:33,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:33,980 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:33,995 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:33,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:33,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871200442] [2021-03-25 12:14:33,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:33,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:33,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484050077] [2021-03-25 12:14:33,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:33,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:33,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:33,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:33,998 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:33,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 473 transitions, 13105 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:33,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:33,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:33,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:34,455 INFO L129 PetriNetUnfolder]: 350/847 cut-off events. [2021-03-25 12:14:34,455 INFO L130 PetriNetUnfolder]: For 65441/65464 co-relation queries the response was YES. [2021-03-25 12:14:34,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13444 conditions, 847 events. 350/847 cut-off events. For 65441/65464 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5732 event pairs, 41 based on Foata normal form. 10/855 useless extension candidates. Maximal degree in co-relation 13228. Up to 637 conditions per place. [2021-03-25 12:14:34,468 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 321 selfloop transitions, 144 changer transitions 3/476 dead transitions. [2021-03-25 12:14:34,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 476 transitions, 14151 flow [2021-03-25 12:14:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:34,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:14:34,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3443223443223443 [2021-03-25 12:14:34,469 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:14:34,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:14:34,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:34,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:14:34,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:34,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:34,470 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:34,470 INFO L185 Difference]: Start difference. First operand has 428 places, 473 transitions, 13105 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:14:34,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 476 transitions, 14151 flow [2021-03-25 12:14:34,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 476 transitions, 13780 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:34,894 INFO L241 Difference]: Finished difference. Result has 432 places, 471 transitions, 13133 flow [2021-03-25 12:14:34,895 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12736, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13133, PETRI_PLACES=432, PETRI_TRANSITIONS=471} [2021-03-25 12:14:34,895 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 385 predicate places. [2021-03-25 12:14:34,895 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:34,895 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 471 transitions, 13133 flow [2021-03-25 12:14:34,895 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 471 transitions, 13133 flow [2021-03-25 12:14:34,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 471 transitions, 13133 flow [2021-03-25 12:14:35,019 INFO L129 PetriNetUnfolder]: 308/775 cut-off events. [2021-03-25 12:14:35,019 INFO L130 PetriNetUnfolder]: For 63276/63370 co-relation queries the response was YES. [2021-03-25 12:14:35,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11991 conditions, 775 events. 308/775 cut-off events. For 63276/63370 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5471 event pairs, 11 based on Foata normal form. 21/795 useless extension candidates. Maximal degree in co-relation 11781. Up to 271 conditions per place. [2021-03-25 12:14:35,034 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:14:35,058 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:35,058 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:35,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 164 [2021-03-25 12:14:35,059 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 471 transitions, 13133 flow [2021-03-25 12:14:35,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:35,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:35,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:35,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-25 12:14:35,059 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:35,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2099693275, now seen corresponding path program 103 times [2021-03-25 12:14:35,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:35,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382438075] [2021-03-25 12:14:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:35,067 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:35,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:35,072 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:35,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:35,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:35,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:35,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:35,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:35,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:35,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:35,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:35,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:35,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:35,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:35,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:35,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:35,128 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:35,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:35,132 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:35,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:35,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382438075] [2021-03-25 12:14:35,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:35,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:35,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141006881] [2021-03-25 12:14:35,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:35,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:35,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:35,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:35,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:35,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 471 transitions, 13133 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:35,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:35,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:35,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:35,573 INFO L129 PetriNetUnfolder]: 352/850 cut-off events. [2021-03-25 12:14:35,573 INFO L130 PetriNetUnfolder]: For 65994/66017 co-relation queries the response was YES. [2021-03-25 12:14:35,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13629 conditions, 850 events. 352/850 cut-off events. For 65994/66017 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5761 event pairs, 40 based on Foata normal form. 10/858 useless extension candidates. Maximal degree in co-relation 13413. Up to 619 conditions per place. [2021-03-25 12:14:35,585 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 317 selfloop transitions, 151 changer transitions 5/481 dead transitions. [2021-03-25 12:14:35,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 481 transitions, 14626 flow [2021-03-25 12:14:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:35,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:35,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 319 transitions. [2021-03-25 12:14:35,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3505494505494505 [2021-03-25 12:14:35,586 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 319 transitions. [2021-03-25 12:14:35,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 319 transitions. [2021-03-25 12:14:35,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:35,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 319 transitions. [2021-03-25 12:14:35,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.9) internal successors, (319), 10 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:35,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:35,587 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:35,587 INFO L185 Difference]: Start difference. First operand has 432 places, 471 transitions, 13133 flow. Second operand 10 states and 319 transitions. [2021-03-25 12:14:35,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 481 transitions, 14626 flow [2021-03-25 12:14:35,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 481 transitions, 14216 flow, removed 14 selfloop flow, removed 14 redundant places. [2021-03-25 12:14:35,980 INFO L241 Difference]: Finished difference. Result has 431 places, 474 transitions, 13352 flow [2021-03-25 12:14:35,980 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12731, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13352, PETRI_PLACES=431, PETRI_TRANSITIONS=474} [2021-03-25 12:14:35,980 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 384 predicate places. [2021-03-25 12:14:35,980 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:35,980 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 431 places, 474 transitions, 13352 flow [2021-03-25 12:14:35,980 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 431 places, 474 transitions, 13352 flow [2021-03-25 12:14:35,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 474 transitions, 13352 flow [2021-03-25 12:14:36,107 INFO L129 PetriNetUnfolder]: 308/773 cut-off events. [2021-03-25 12:14:36,107 INFO L130 PetriNetUnfolder]: For 66777/66886 co-relation queries the response was YES. [2021-03-25 12:14:36,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12081 conditions, 773 events. 308/773 cut-off events. For 66777/66886 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5464 event pairs, 14 based on Foata normal form. 21/793 useless extension candidates. Maximal degree in co-relation 11870. Up to 272 conditions per place. [2021-03-25 12:14:36,126 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:14:36,152 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:36,152 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:36,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 12:14:36,152 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 474 transitions, 13352 flow [2021-03-25 12:14:36,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:36,152 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:36,152 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:36,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-25 12:14:36,152 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:36,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:36,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1158551891, now seen corresponding path program 104 times [2021-03-25 12:14:36,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:36,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726305313] [2021-03-25 12:14:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:36,159 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:36,163 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:36,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:36,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:36,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:36,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:36,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:36,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:36,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:36,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:36,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:36,221 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:36,234 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:36,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:36,249 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:36,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:36,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726305313] [2021-03-25 12:14:36,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:36,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:14:36,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859614662] [2021-03-25 12:14:36,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:14:36,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:36,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:14:36,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:14:36,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:36,252 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 474 transitions, 13352 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:36,252 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:36,252 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:36,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:36,783 INFO L129 PetriNetUnfolder]: 352/854 cut-off events. [2021-03-25 12:14:36,783 INFO L130 PetriNetUnfolder]: For 68580/68603 co-relation queries the response was YES. [2021-03-25 12:14:36,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13795 conditions, 854 events. 352/854 cut-off events. For 68580/68603 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5805 event pairs, 34 based on Foata normal form. 12/865 useless extension candidates. Maximal degree in co-relation 13578. Up to 532 conditions per place. [2021-03-25 12:14:36,796 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 276 selfloop transitions, 198 changer transitions 2/484 dead transitions. [2021-03-25 12:14:36,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 484 transitions, 14792 flow [2021-03-25 12:14:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:36,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 380 transitions. [2021-03-25 12:14:36,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34798534798534797 [2021-03-25 12:14:36,798 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 380 transitions. [2021-03-25 12:14:36,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 380 transitions. [2021-03-25 12:14:36,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:36,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 380 transitions. [2021-03-25 12:14:36,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.666666666666668) internal successors, (380), 12 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:36,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:36,798 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:36,799 INFO L185 Difference]: Start difference. First operand has 430 places, 474 transitions, 13352 flow. Second operand 12 states and 380 transitions. [2021-03-25 12:14:36,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 484 transitions, 14792 flow [2021-03-25 12:14:37,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 484 transitions, 14279 flow, removed 61 selfloop flow, removed 11 redundant places. [2021-03-25 12:14:37,244 INFO L241 Difference]: Finished difference. Result has 433 places, 477 transitions, 13527 flow [2021-03-25 12:14:37,245 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12841, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13527, PETRI_PLACES=433, PETRI_TRANSITIONS=477} [2021-03-25 12:14:37,245 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 386 predicate places. [2021-03-25 12:14:37,245 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:37,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 477 transitions, 13527 flow [2021-03-25 12:14:37,245 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 477 transitions, 13527 flow [2021-03-25 12:14:37,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 477 transitions, 13527 flow [2021-03-25 12:14:37,379 INFO L129 PetriNetUnfolder]: 310/787 cut-off events. [2021-03-25 12:14:37,379 INFO L130 PetriNetUnfolder]: For 65784/65878 co-relation queries the response was YES. [2021-03-25 12:14:37,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12285 conditions, 787 events. 310/787 cut-off events. For 65784/65878 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5565 event pairs, 18 based on Foata normal form. 19/804 useless extension candidates. Maximal degree in co-relation 12110. Up to 276 conditions per place. [2021-03-25 12:14:37,395 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:14:37,421 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:37,421 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:37,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 176 [2021-03-25 12:14:37,421 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 477 transitions, 13527 flow [2021-03-25 12:14:37,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:37,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:37,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:37,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-25 12:14:37,421 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:37,422 INFO L82 PathProgramCache]: Analyzing trace with hash 735771907, now seen corresponding path program 105 times [2021-03-25 12:14:37,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:37,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758726500] [2021-03-25 12:14:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:37,429 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:37,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:37,433 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:37,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:37,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:37,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:37,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:37,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:37,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:37,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:37,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:37,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:37,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:37,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:14:37,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:37,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:37,503 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:37,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:37,508 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:37,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:37,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:37,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758726500] [2021-03-25 12:14:37,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:37,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:37,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097098669] [2021-03-25 12:14:37,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:37,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:37,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:37,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:37,511 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:37,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 477 transitions, 13527 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:37,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:37,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:37,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:38,006 INFO L129 PetriNetUnfolder]: 352/853 cut-off events. [2021-03-25 12:14:38,006 INFO L130 PetriNetUnfolder]: For 68637/68652 co-relation queries the response was YES. [2021-03-25 12:14:38,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13829 conditions, 853 events. 352/853 cut-off events. For 68637/68652 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5830 event pairs, 40 based on Foata normal form. 8/859 useless extension candidates. Maximal degree in co-relation 13652. Up to 668 conditions per place. [2021-03-25 12:14:38,019 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 372 selfloop transitions, 89 changer transitions 13/482 dead transitions. [2021-03-25 12:14:38,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 482 transitions, 14637 flow [2021-03-25 12:14:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:38,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 369 transitions. [2021-03-25 12:14:38,020 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33791208791208793 [2021-03-25 12:14:38,020 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 369 transitions. [2021-03-25 12:14:38,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 369 transitions. [2021-03-25 12:14:38,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:38,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 369 transitions. [2021-03-25 12:14:38,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.75) internal successors, (369), 12 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:38,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:38,021 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:38,021 INFO L185 Difference]: Start difference. First operand has 432 places, 477 transitions, 13527 flow. Second operand 12 states and 369 transitions. [2021-03-25 12:14:38,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 482 transitions, 14637 flow [2021-03-25 12:14:38,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 482 transitions, 14271 flow, removed 44 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:38,518 INFO L241 Difference]: Finished difference. Result has 438 places, 468 transitions, 13009 flow [2021-03-25 12:14:38,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=13163, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13009, PETRI_PLACES=438, PETRI_TRANSITIONS=468} [2021-03-25 12:14:38,519 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 391 predicate places. [2021-03-25 12:14:38,519 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:38,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 438 places, 468 transitions, 13009 flow [2021-03-25 12:14:38,519 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 438 places, 468 transitions, 13009 flow [2021-03-25 12:14:38,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 468 transitions, 13009 flow [2021-03-25 12:14:38,652 INFO L129 PetriNetUnfolder]: 307/778 cut-off events. [2021-03-25 12:14:38,652 INFO L130 PetriNetUnfolder]: For 62391/62484 co-relation queries the response was YES. [2021-03-25 12:14:38,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12127 conditions, 778 events. 307/778 cut-off events. For 62391/62484 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5506 event pairs, 14 based on Foata normal form. 18/795 useless extension candidates. Maximal degree in co-relation 11949. Up to 270 conditions per place. [2021-03-25 12:14:38,668 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:14:38,693 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:38,693 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:38,693 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 174 [2021-03-25 12:14:38,693 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 468 transitions, 13009 flow [2021-03-25 12:14:38,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:38,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:38,693 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:38,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-25 12:14:38,693 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:38,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:38,694 INFO L82 PathProgramCache]: Analyzing trace with hash 2062528823, now seen corresponding path program 106 times [2021-03-25 12:14:38,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:38,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606580114] [2021-03-25 12:14:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:38,724 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:38,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:38,729 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:38,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:38,736 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:14:38,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:14:38,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:38,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:38,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:38,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:38,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:38,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:38,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:38,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:38,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:38,789 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:38,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:38,793 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:38,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:38,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606580114] [2021-03-25 12:14:38,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:38,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:38,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465651937] [2021-03-25 12:14:38,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:38,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:38,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:38,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:38,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:38,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 468 transitions, 13009 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:38,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:38,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:38,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:39,198 INFO L129 PetriNetUnfolder]: 346/846 cut-off events. [2021-03-25 12:14:39,198 INFO L130 PetriNetUnfolder]: For 66559/66607 co-relation queries the response was YES. [2021-03-25 12:14:39,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13516 conditions, 846 events. 346/846 cut-off events. For 66559/66607 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5784 event pairs, 38 based on Foata normal form. 11/854 useless extension candidates. Maximal degree in co-relation 13336. Up to 694 conditions per place. [2021-03-25 12:14:39,212 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 422 selfloop transitions, 39 changer transitions 3/472 dead transitions. [2021-03-25 12:14:39,212 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 472 transitions, 14052 flow [2021-03-25 12:14:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:39,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 303 transitions. [2021-03-25 12:14:39,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33296703296703295 [2021-03-25 12:14:39,213 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 303 transitions. [2021-03-25 12:14:39,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 303 transitions. [2021-03-25 12:14:39,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:39,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 303 transitions. [2021-03-25 12:14:39,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.3) internal successors, (303), 10 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:39,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:39,214 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:39,214 INFO L185 Difference]: Start difference. First operand has 434 places, 468 transitions, 13009 flow. Second operand 10 states and 303 transitions. [2021-03-25 12:14:39,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 472 transitions, 14052 flow [2021-03-25 12:14:39,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 472 transitions, 13784 flow, removed 17 selfloop flow, removed 17 redundant places. [2021-03-25 12:14:39,626 INFO L241 Difference]: Finished difference. Result has 429 places, 468 transitions, 12840 flow [2021-03-25 12:14:39,626 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12743, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12840, PETRI_PLACES=429, PETRI_TRANSITIONS=468} [2021-03-25 12:14:39,626 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 382 predicate places. [2021-03-25 12:14:39,626 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:39,626 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 468 transitions, 12840 flow [2021-03-25 12:14:39,626 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 468 transitions, 12840 flow [2021-03-25 12:14:39,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 428 places, 468 transitions, 12840 flow [2021-03-25 12:14:39,758 INFO L129 PetriNetUnfolder]: 304/773 cut-off events. [2021-03-25 12:14:39,758 INFO L130 PetriNetUnfolder]: For 61806/61902 co-relation queries the response was YES. [2021-03-25 12:14:39,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11914 conditions, 773 events. 304/773 cut-off events. For 61806/61902 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5448 event pairs, 15 based on Foata normal form. 21/793 useless extension candidates. Maximal degree in co-relation 11704. Up to 265 conditions per place. [2021-03-25 12:14:39,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 492 [2021-03-25 12:14:39,800 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:39,800 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:39,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 174 [2021-03-25 12:14:39,800 INFO L480 AbstractCegarLoop]: Abstraction has has 428 places, 468 transitions, 12840 flow [2021-03-25 12:14:39,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:39,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:39,801 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:39,801 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-25 12:14:39,801 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:39,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:39,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1241677927, now seen corresponding path program 107 times [2021-03-25 12:14:39,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:39,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659268333] [2021-03-25 12:14:39,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:39,808 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:39,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:39,812 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:39,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:39,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:39,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:39,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:39,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:39,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:39,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:39,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:39,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:39,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:39,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:39,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:39,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:39,873 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:39,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:39,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:39,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659268333] [2021-03-25 12:14:39,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:39,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:39,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797647743] [2021-03-25 12:14:39,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:39,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:39,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:39,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:39,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:39,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 468 transitions, 12840 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:39,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:39,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:39,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:40,296 INFO L129 PetriNetUnfolder]: 345/837 cut-off events. [2021-03-25 12:14:40,296 INFO L130 PetriNetUnfolder]: For 66925/66948 co-relation queries the response was YES. [2021-03-25 12:14:40,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13399 conditions, 837 events. 345/837 cut-off events. For 66925/66948 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5640 event pairs, 40 based on Foata normal form. 10/845 useless extension candidates. Maximal degree in co-relation 13183. Up to 640 conditions per place. [2021-03-25 12:14:40,308 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 334 selfloop transitions, 125 changer transitions 4/471 dead transitions. [2021-03-25 12:14:40,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 471 transitions, 13878 flow [2021-03-25 12:14:40,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:14:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:14:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 287 transitions. [2021-03-25 12:14:40,309 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3504273504273504 [2021-03-25 12:14:40,309 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 287 transitions. [2021-03-25 12:14:40,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 287 transitions. [2021-03-25 12:14:40,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:40,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 287 transitions. [2021-03-25 12:14:40,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.88888888888889) internal successors, (287), 9 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:40,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:40,310 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 91.0) internal successors, (910), 10 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:40,310 INFO L185 Difference]: Start difference. First operand has 428 places, 468 transitions, 12840 flow. Second operand 9 states and 287 transitions. [2021-03-25 12:14:40,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 471 transitions, 13878 flow [2021-03-25 12:14:40,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 471 transitions, 13794 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 12:14:40,713 INFO L241 Difference]: Finished difference. Result has 432 places, 465 transitions, 13109 flow [2021-03-25 12:14:40,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12758, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13109, PETRI_PLACES=432, PETRI_TRANSITIONS=465} [2021-03-25 12:14:40,714 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 385 predicate places. [2021-03-25 12:14:40,714 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:40,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 465 transitions, 13109 flow [2021-03-25 12:14:40,714 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 465 transitions, 13109 flow [2021-03-25 12:14:40,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 429 places, 465 transitions, 13109 flow [2021-03-25 12:14:40,841 INFO L129 PetriNetUnfolder]: 304/767 cut-off events. [2021-03-25 12:14:40,841 INFO L130 PetriNetUnfolder]: For 61359/61471 co-relation queries the response was YES. [2021-03-25 12:14:40,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12044 conditions, 767 events. 304/767 cut-off events. For 61359/61471 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5417 event pairs, 16 based on Foata normal form. 19/780 useless extension candidates. Maximal degree in co-relation 11851. Up to 266 conditions per place. [2021-03-25 12:14:40,857 INFO L142 LiptonReduction]: Number of co-enabled transitions 492 [2021-03-25 12:14:40,881 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:40,881 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:40,881 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-25 12:14:40,882 INFO L480 AbstractCegarLoop]: Abstraction has has 429 places, 465 transitions, 13109 flow [2021-03-25 12:14:40,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:40,882 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:40,882 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:40,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-25 12:14:40,882 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:40,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:40,882 INFO L82 PathProgramCache]: Analyzing trace with hash 460815073, now seen corresponding path program 108 times [2021-03-25 12:14:40,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:40,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726431381] [2021-03-25 12:14:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:40,888 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:40,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:40,892 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:40,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:40,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:40,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:40,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:40,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:40,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:40,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:40,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:40,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:40,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:40,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:40,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:40,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:40,970 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:40,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:40,984 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:40,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:40,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726431381] [2021-03-25 12:14:40,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:40,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:40,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076343241] [2021-03-25 12:14:40,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:40,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:40,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:40,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:40,987 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:40,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 465 transitions, 13109 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:40,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:40,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:40,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:41,508 INFO L129 PetriNetUnfolder]: 345/838 cut-off events. [2021-03-25 12:14:41,508 INFO L130 PetriNetUnfolder]: For 67486/67501 co-relation queries the response was YES. [2021-03-25 12:14:41,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13655 conditions, 838 events. 345/838 cut-off events. For 67486/67501 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5685 event pairs, 42 based on Foata normal form. 8/844 useless extension candidates. Maximal degree in co-relation 13459. Up to 653 conditions per place. [2021-03-25 12:14:41,521 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 358 selfloop transitions, 100 changer transitions 4/470 dead transitions. [2021-03-25 12:14:41,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 470 transitions, 14253 flow [2021-03-25 12:14:41,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:14:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:14:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 458 transitions. [2021-03-25 12:14:41,522 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3355311355311355 [2021-03-25 12:14:41,522 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 458 transitions. [2021-03-25 12:14:41,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 458 transitions. [2021-03-25 12:14:41,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:41,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 458 transitions. [2021-03-25 12:14:41,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.533333333333335) internal successors, (458), 15 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:41,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:41,523 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 91.0) internal successors, (1456), 16 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:41,523 INFO L185 Difference]: Start difference. First operand has 429 places, 465 transitions, 13109 flow. Second operand 15 states and 458 transitions. [2021-03-25 12:14:41,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 470 transitions, 14253 flow [2021-03-25 12:14:41,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 470 transitions, 13788 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 12:14:41,924 INFO L241 Difference]: Finished difference. Result has 434 places, 465 transitions, 12983 flow [2021-03-25 12:14:41,924 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12648, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12983, PETRI_PLACES=434, PETRI_TRANSITIONS=465} [2021-03-25 12:14:41,924 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 387 predicate places. [2021-03-25 12:14:41,924 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:41,924 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 465 transitions, 12983 flow [2021-03-25 12:14:41,924 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 465 transitions, 12983 flow [2021-03-25 12:14:41,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 465 transitions, 12983 flow [2021-03-25 12:14:42,052 INFO L129 PetriNetUnfolder]: 302/768 cut-off events. [2021-03-25 12:14:42,052 INFO L130 PetriNetUnfolder]: For 63746/63842 co-relation queries the response was YES. [2021-03-25 12:14:42,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12021 conditions, 768 events. 302/768 cut-off events. For 63746/63842 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5463 event pairs, 16 based on Foata normal form. 21/788 useless extension candidates. Maximal degree in co-relation 11798. Up to 264 conditions per place. [2021-03-25 12:14:42,067 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:14:42,091 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:42,092 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:42,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-03-25 12:14:42,092 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 465 transitions, 12983 flow [2021-03-25 12:14:42,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:42,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:42,092 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:42,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-25 12:14:42,092 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:42,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash 263239275, now seen corresponding path program 109 times [2021-03-25 12:14:42,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:42,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378551287] [2021-03-25 12:14:42,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:42,114 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:42,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:42,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:42,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:42,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:42,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:42,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:42,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:42,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:42,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:42,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:42,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:42,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:42,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:42,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:42,180 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:42,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:42,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378551287] [2021-03-25 12:14:42,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:42,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:42,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297153061] [2021-03-25 12:14:42,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:42,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:42,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:42,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:42,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 465 transitions, 12983 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:42,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:42,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:42,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:42,611 INFO L129 PetriNetUnfolder]: 344/838 cut-off events. [2021-03-25 12:14:42,611 INFO L130 PetriNetUnfolder]: For 68208/68231 co-relation queries the response was YES. [2021-03-25 12:14:42,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13543 conditions, 838 events. 344/838 cut-off events. For 68208/68231 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5692 event pairs, 41 based on Foata normal form. 10/846 useless extension candidates. Maximal degree in co-relation 13327. Up to 622 conditions per place. [2021-03-25 12:14:42,624 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 339 selfloop transitions, 123 changer transitions 2/472 dead transitions. [2021-03-25 12:14:42,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 472 transitions, 14232 flow [2021-03-25 12:14:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2021-03-25 12:14:42,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34835164835164834 [2021-03-25 12:14:42,625 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 317 transitions. [2021-03-25 12:14:42,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 317 transitions. [2021-03-25 12:14:42,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:42,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 317 transitions. [2021-03-25 12:14:42,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:42,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:42,625 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:42,625 INFO L185 Difference]: Start difference. First operand has 433 places, 465 transitions, 12983 flow. Second operand 10 states and 317 transitions. [2021-03-25 12:14:42,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 472 transitions, 14232 flow [2021-03-25 12:14:43,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 472 transitions, 13888 flow, removed 62 selfloop flow, removed 12 redundant places. [2021-03-25 12:14:43,038 INFO L241 Difference]: Finished difference. Result has 433 places, 467 transitions, 13108 flow [2021-03-25 12:14:43,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12643, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13108, PETRI_PLACES=433, PETRI_TRANSITIONS=467} [2021-03-25 12:14:43,039 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 386 predicate places. [2021-03-25 12:14:43,039 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:43,039 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 467 transitions, 13108 flow [2021-03-25 12:14:43,039 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 467 transitions, 13108 flow [2021-03-25 12:14:43,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 467 transitions, 13108 flow [2021-03-25 12:14:43,182 INFO L129 PetriNetUnfolder]: 302/773 cut-off events. [2021-03-25 12:14:43,183 INFO L130 PetriNetUnfolder]: For 63701/63813 co-relation queries the response was YES. [2021-03-25 12:14:43,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12052 conditions, 773 events. 302/773 cut-off events. For 63701/63813 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5466 event pairs, 16 based on Foata normal form. 22/793 useless extension candidates. Maximal degree in co-relation 11839. Up to 260 conditions per place. [2021-03-25 12:14:43,198 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:14:43,222 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:43,222 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:43,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-03-25 12:14:43,223 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 467 transitions, 13108 flow [2021-03-25 12:14:43,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:43,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:43,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:43,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-25 12:14:43,223 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:43,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:43,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1519093895, now seen corresponding path program 110 times [2021-03-25 12:14:43,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:43,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34459425] [2021-03-25 12:14:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:43,230 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:43,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:43,234 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:43,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:43,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:43,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:43,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:43,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:43,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:43,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:43,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:43,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:43,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:43,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:43,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:43,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:43,303 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:43,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:43,308 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:43,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:43,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34459425] [2021-03-25 12:14:43,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:43,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:43,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810984759] [2021-03-25 12:14:43,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:43,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:43,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:43,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:43,311 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:43,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 467 transitions, 13108 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:43,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:43,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:43,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:43,770 INFO L129 PetriNetUnfolder]: 344/840 cut-off events. [2021-03-25 12:14:43,770 INFO L130 PetriNetUnfolder]: For 67257/67280 co-relation queries the response was YES. [2021-03-25 12:14:43,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13576 conditions, 840 events. 344/840 cut-off events. For 67257/67280 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5715 event pairs, 39 based on Foata normal form. 10/848 useless extension candidates. Maximal degree in co-relation 13360. Up to 638 conditions per place. [2021-03-25 12:14:43,783 INFO L132 encePairwiseOnDemand]: 78/91 looper letters, 346 selfloop transitions, 116 changer transitions 2/472 dead transitions. [2021-03-25 12:14:43,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 472 transitions, 14275 flow [2021-03-25 12:14:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:14:43,784 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34165834165834164 [2021-03-25 12:14:43,784 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:14:43,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:14:43,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:43,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:14:43,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:43,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:43,785 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:43,785 INFO L185 Difference]: Start difference. First operand has 432 places, 467 transitions, 13108 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:14:43,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 472 transitions, 14275 flow [2021-03-25 12:14:44,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 472 transitions, 13810 flow, removed 74 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:44,218 INFO L241 Difference]: Finished difference. Result has 436 places, 468 transitions, 13005 flow [2021-03-25 12:14:44,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12673, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13005, PETRI_PLACES=436, PETRI_TRANSITIONS=468} [2021-03-25 12:14:44,219 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 389 predicate places. [2021-03-25 12:14:44,219 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:44,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 436 places, 468 transitions, 13005 flow [2021-03-25 12:14:44,219 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 436 places, 468 transitions, 13005 flow [2021-03-25 12:14:44,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 435 places, 468 transitions, 13005 flow [2021-03-25 12:14:44,403 INFO L129 PetriNetUnfolder]: 305/778 cut-off events. [2021-03-25 12:14:44,403 INFO L130 PetriNetUnfolder]: For 63678/63760 co-relation queries the response was YES. [2021-03-25 12:14:44,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11960 conditions, 778 events. 305/778 cut-off events. For 63678/63760 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5527 event pairs, 30 based on Foata normal form. 22/796 useless extension candidates. Maximal degree in co-relation 11744. Up to 264 conditions per place. [2021-03-25 12:14:44,428 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:14:44,464 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:44,464 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:44,465 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-03-25 12:14:44,465 INFO L480 AbstractCegarLoop]: Abstraction has has 435 places, 468 transitions, 13005 flow [2021-03-25 12:14:44,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:44,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:44,465 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:44,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-25 12:14:44,465 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash 680553979, now seen corresponding path program 111 times [2021-03-25 12:14:44,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:44,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186169184] [2021-03-25 12:14:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:44,474 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:44,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:44,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:44,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:44,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:44,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:44,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:44,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:44,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:44,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:44,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:44,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:44,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:44,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:44,587 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:44,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:44,595 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:44,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:44,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186169184] [2021-03-25 12:14:44,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:44,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:44,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238903970] [2021-03-25 12:14:44,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:44,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:44,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:44,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:44,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:44,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 468 transitions, 13005 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:44,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:44,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:44,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:45,102 INFO L129 PetriNetUnfolder]: 344/846 cut-off events. [2021-03-25 12:14:45,103 INFO L130 PetriNetUnfolder]: For 66016/66039 co-relation queries the response was YES. [2021-03-25 12:14:45,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13515 conditions, 846 events. 344/846 cut-off events. For 66016/66039 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5784 event pairs, 40 based on Foata normal form. 10/854 useless extension candidates. Maximal degree in co-relation 13298. Up to 589 conditions per place. [2021-03-25 12:14:45,116 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 306 selfloop transitions, 159 changer transitions 2/475 dead transitions. [2021-03-25 12:14:45,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 475 transitions, 14266 flow [2021-03-25 12:14:45,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 346 transitions. [2021-03-25 12:14:45,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34565434565434566 [2021-03-25 12:14:45,117 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 346 transitions. [2021-03-25 12:14:45,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 346 transitions. [2021-03-25 12:14:45,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:45,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 346 transitions. [2021-03-25 12:14:45,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.454545454545453) internal successors, (346), 11 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:45,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:45,118 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:45,118 INFO L185 Difference]: Start difference. First operand has 435 places, 468 transitions, 13005 flow. Second operand 11 states and 346 transitions. [2021-03-25 12:14:45,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 475 transitions, 14266 flow [2021-03-25 12:14:45,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 475 transitions, 13964 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:45,547 INFO L241 Difference]: Finished difference. Result has 438 places, 470 transitions, 13263 flow [2021-03-25 12:14:45,547 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12705, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13263, PETRI_PLACES=438, PETRI_TRANSITIONS=470} [2021-03-25 12:14:45,547 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 391 predicate places. [2021-03-25 12:14:45,547 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:45,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 438 places, 470 transitions, 13263 flow [2021-03-25 12:14:45,547 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 438 places, 470 transitions, 13263 flow [2021-03-25 12:14:45,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 437 places, 470 transitions, 13263 flow [2021-03-25 12:14:45,681 INFO L129 PetriNetUnfolder]: 304/782 cut-off events. [2021-03-25 12:14:45,681 INFO L130 PetriNetUnfolder]: For 62996/63063 co-relation queries the response was YES. [2021-03-25 12:14:45,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12227 conditions, 782 events. 304/782 cut-off events. For 62996/63063 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5600 event pairs, 15 based on Foata normal form. 21/802 useless extension candidates. Maximal degree in co-relation 12007. Up to 261 conditions per place. [2021-03-25 12:14:45,697 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:45,722 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:45,722 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:45,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 175 [2021-03-25 12:14:45,723 INFO L480 AbstractCegarLoop]: Abstraction has has 437 places, 470 transitions, 13263 flow [2021-03-25 12:14:45,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:45,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:45,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:45,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-25 12:14:45,723 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:45,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:45,723 INFO L82 PathProgramCache]: Analyzing trace with hash 386766748, now seen corresponding path program 3 times [2021-03-25 12:14:45,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:45,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691202200] [2021-03-25 12:14:45,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:45,731 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:45,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:45,735 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:45,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:45,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:45,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:45,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:45,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:45,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:45,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:45,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:45,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:45,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:45,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:45,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:45,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:45,813 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:45,817 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:45,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:45,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:45,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691202200] [2021-03-25 12:14:45,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:45,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:45,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376562018] [2021-03-25 12:14:45,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:45,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:45,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:45,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:45,821 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:45,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 470 transitions, 13263 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:45,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:45,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:45,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:46,349 INFO L129 PetriNetUnfolder]: 346/853 cut-off events. [2021-03-25 12:14:46,349 INFO L130 PetriNetUnfolder]: For 71964/71993 co-relation queries the response was YES. [2021-03-25 12:14:46,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13831 conditions, 853 events. 346/853 cut-off events. For 71964/71993 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5830 event pairs, 45 based on Foata normal form. 14/864 useless extension candidates. Maximal degree in co-relation 13612. Up to 681 conditions per place. [2021-03-25 12:14:46,363 INFO L132 encePairwiseOnDemand]: 79/91 looper letters, 392 selfloop transitions, 78 changer transitions 3/481 dead transitions. [2021-03-25 12:14:46,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 481 transitions, 14759 flow [2021-03-25 12:14:46,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:46,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:46,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 374 transitions. [2021-03-25 12:14:46,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3424908424908425 [2021-03-25 12:14:46,365 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 374 transitions. [2021-03-25 12:14:46,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 374 transitions. [2021-03-25 12:14:46,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:46,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 374 transitions. [2021-03-25 12:14:46,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.166666666666668) internal successors, (374), 12 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:46,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:46,366 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:46,366 INFO L185 Difference]: Start difference. First operand has 437 places, 470 transitions, 13263 flow. Second operand 12 states and 374 transitions. [2021-03-25 12:14:46,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 481 transitions, 14759 flow [2021-03-25 12:14:46,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 481 transitions, 14229 flow, removed 67 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:46,760 INFO L241 Difference]: Finished difference. Result has 443 places, 477 transitions, 13298 flow [2021-03-25 12:14:46,760 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12744, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13298, PETRI_PLACES=443, PETRI_TRANSITIONS=477} [2021-03-25 12:14:46,760 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 396 predicate places. [2021-03-25 12:14:46,760 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:46,760 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 477 transitions, 13298 flow [2021-03-25 12:14:46,760 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 477 transitions, 13298 flow [2021-03-25 12:14:46,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 443 places, 477 transitions, 13298 flow [2021-03-25 12:14:46,890 INFO L129 PetriNetUnfolder]: 303/784 cut-off events. [2021-03-25 12:14:46,890 INFO L130 PetriNetUnfolder]: For 64178/64288 co-relation queries the response was YES. [2021-03-25 12:14:46,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12130 conditions, 784 events. 303/784 cut-off events. For 64178/64288 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 5645 event pairs, 17 based on Foata normal form. 21/803 useless extension candidates. Maximal degree in co-relation 11908. Up to 265 conditions per place. [2021-03-25 12:14:46,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:46,931 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:46,931 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:46,931 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-03-25 12:14:46,931 INFO L480 AbstractCegarLoop]: Abstraction has has 443 places, 477 transitions, 13298 flow [2021-03-25 12:14:46,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:46,931 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:46,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:46,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-25 12:14:46,932 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:46,932 INFO L82 PathProgramCache]: Analyzing trace with hash -46477485, now seen corresponding path program 112 times [2021-03-25 12:14:46,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:46,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120487770] [2021-03-25 12:14:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:46,942 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:46,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:46,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:46,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:46,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:46,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:46,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:46,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:46,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:46,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:46,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:46,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:46,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:47,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:47,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:47,009 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:47,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:47,012 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:47,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:47,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120487770] [2021-03-25 12:14:47,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:47,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:47,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512095737] [2021-03-25 12:14:47,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:47,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:47,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:47,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:47,015 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 91 [2021-03-25 12:14:47,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 477 transitions, 13298 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:47,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:47,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 91 [2021-03-25 12:14:47,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:47,466 INFO L129 PetriNetUnfolder]: 347/853 cut-off events. [2021-03-25 12:14:47,466 INFO L130 PetriNetUnfolder]: For 69405/69428 co-relation queries the response was YES. [2021-03-25 12:14:47,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13737 conditions, 853 events. 347/853 cut-off events. For 69405/69428 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5852 event pairs, 41 based on Foata normal form. 8/858 useless extension candidates. Maximal degree in co-relation 13513. Up to 697 conditions per place. [2021-03-25 12:14:47,479 INFO L132 encePairwiseOnDemand]: 80/91 looper letters, 414 selfloop transitions, 60 changer transitions 2/484 dead transitions. [2021-03-25 12:14:47,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 484 transitions, 14553 flow [2021-03-25 12:14:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2021-03-25 12:14:47,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34065934065934067 [2021-03-25 12:14:47,492 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 310 transitions. [2021-03-25 12:14:47,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 310 transitions. [2021-03-25 12:14:47,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:47,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 310 transitions. [2021-03-25 12:14:47,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:47,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:47,493 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:47,493 INFO L185 Difference]: Start difference. First operand has 443 places, 477 transitions, 13298 flow. Second operand 10 states and 310 transitions. [2021-03-25 12:14:47,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 484 transitions, 14553 flow [2021-03-25 12:14:47,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 484 transitions, 14248 flow, removed 105 selfloop flow, removed 7 redundant places. [2021-03-25 12:14:47,976 INFO L241 Difference]: Finished difference. Result has 449 places, 481 transitions, 13318 flow [2021-03-25 12:14:47,976 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=12993, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13318, PETRI_PLACES=449, PETRI_TRANSITIONS=481} [2021-03-25 12:14:47,976 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 402 predicate places. [2021-03-25 12:14:47,976 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:47,976 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 449 places, 481 transitions, 13318 flow [2021-03-25 12:14:47,976 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 449 places, 481 transitions, 13318 flow [2021-03-25 12:14:47,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 449 places, 481 transitions, 13318 flow [2021-03-25 12:14:48,115 INFO L129 PetriNetUnfolder]: 305/782 cut-off events. [2021-03-25 12:14:48,116 INFO L130 PetriNetUnfolder]: For 65313/65409 co-relation queries the response was YES. [2021-03-25 12:14:48,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12209 conditions, 782 events. 305/782 cut-off events. For 65313/65409 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5599 event pairs, 18 based on Foata normal form. 21/802 useless extension candidates. Maximal degree in co-relation 11991. Up to 268 conditions per place. [2021-03-25 12:14:48,139 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:48,235 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:48,235 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:14:48,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-25 12:14:48,236 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 481 transitions, 13324 flow [2021-03-25 12:14:48,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:48,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:48,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:48,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-25 12:14:48,236 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:48,236 INFO L82 PathProgramCache]: Analyzing trace with hash -780785477, now seen corresponding path program 113 times [2021-03-25 12:14:48,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:48,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165492265] [2021-03-25 12:14:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:48,248 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:48,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:48,253 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:48,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:48,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:48,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:48,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:48,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:48,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:48,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:48,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:48,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:48,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:48,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:48,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:48,317 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:48,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:48,320 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:48,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:48,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165492265] [2021-03-25 12:14:48,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:48,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:48,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080725865] [2021-03-25 12:14:48,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:48,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:48,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:48,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:48,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:48,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 481 transitions, 13324 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:48,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:48,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:48,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:48,791 INFO L129 PetriNetUnfolder]: 349/862 cut-off events. [2021-03-25 12:14:48,792 INFO L130 PetriNetUnfolder]: For 70851/70874 co-relation queries the response was YES. [2021-03-25 12:14:48,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13840 conditions, 862 events. 349/862 cut-off events. For 70851/70874 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5961 event pairs, 42 based on Foata normal form. 8/867 useless extension candidates. Maximal degree in co-relation 13616. Up to 692 conditions per place. [2021-03-25 12:14:48,805 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 406 selfloop transitions, 77 changer transitions 2/493 dead transitions. [2021-03-25 12:14:48,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 493 transitions, 14681 flow [2021-03-25 12:14:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:14:48,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33695652173913043 [2021-03-25 12:14:48,806 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:14:48,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:14:48,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:48,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:14:48,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:48,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:48,807 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:48,807 INFO L185 Difference]: Start difference. First operand has 449 places, 481 transitions, 13324 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:14:48,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 493 transitions, 14681 flow [2021-03-25 12:14:49,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 493 transitions, 14371 flow, removed 75 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:49,211 INFO L241 Difference]: Finished difference. Result has 457 places, 490 transitions, 13495 flow [2021-03-25 12:14:49,212 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13021, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13495, PETRI_PLACES=457, PETRI_TRANSITIONS=490} [2021-03-25 12:14:49,212 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 410 predicate places. [2021-03-25 12:14:49,212 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:49,212 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 457 places, 490 transitions, 13495 flow [2021-03-25 12:14:49,212 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 457 places, 490 transitions, 13495 flow [2021-03-25 12:14:49,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 457 places, 490 transitions, 13495 flow [2021-03-25 12:14:49,342 INFO L129 PetriNetUnfolder]: 307/787 cut-off events. [2021-03-25 12:14:49,342 INFO L130 PetriNetUnfolder]: For 65621/65715 co-relation queries the response was YES. [2021-03-25 12:14:49,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12302 conditions, 787 events. 307/787 cut-off events. For 65621/65715 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 5673 event pairs, 15 based on Foata normal form. 19/805 useless extension candidates. Maximal degree in co-relation 12079. Up to 268 conditions per place. [2021-03-25 12:14:49,361 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:49,388 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:49,388 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:49,388 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 176 [2021-03-25 12:14:49,388 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 490 transitions, 13495 flow [2021-03-25 12:14:49,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:49,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:49,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:49,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-25 12:14:49,388 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:49,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:49,388 INFO L82 PathProgramCache]: Analyzing trace with hash -992415296, now seen corresponding path program 1 times [2021-03-25 12:14:49,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:49,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256835085] [2021-03-25 12:14:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:49,410 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:49,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:49,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:49,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:49,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:49,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:49,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:49,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:49,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:49,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:49,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:49,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:49,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:49,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:49,472 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:49,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:49,485 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:49,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:49,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:49,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256835085] [2021-03-25 12:14:49,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:49,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:49,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021917534] [2021-03-25 12:14:49,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:49,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:49,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:49,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:49,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:49,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 490 transitions, 13495 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:49,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:49,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:49,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:49,931 INFO L129 PetriNetUnfolder]: 349/859 cut-off events. [2021-03-25 12:14:49,931 INFO L130 PetriNetUnfolder]: For 69781/69804 co-relation queries the response was YES. [2021-03-25 12:14:49,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13839 conditions, 859 events. 349/859 cut-off events. For 69781/69804 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5934 event pairs, 35 based on Foata normal form. 10/867 useless extension candidates. Maximal degree in co-relation 13610. Up to 629 conditions per place. [2021-03-25 12:14:49,943 INFO L132 encePairwiseOnDemand]: 78/92 looper letters, 332 selfloop transitions, 153 changer transitions 2/495 dead transitions. [2021-03-25 12:14:49,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 495 transitions, 14690 flow [2021-03-25 12:14:49,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:49,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:14:49,944 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33794466403162055 [2021-03-25 12:14:49,944 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:14:49,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:14:49,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:49,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:14:49,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:49,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:49,945 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:49,945 INFO L185 Difference]: Start difference. First operand has 457 places, 490 transitions, 13495 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:14:49,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 495 transitions, 14690 flow [2021-03-25 12:14:50,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 495 transitions, 14406 flow, removed 69 selfloop flow, removed 8 redundant places. [2021-03-25 12:14:50,401 INFO L241 Difference]: Finished difference. Result has 462 places, 491 transitions, 13624 flow [2021-03-25 12:14:50,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13211, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13624, PETRI_PLACES=462, PETRI_TRANSITIONS=491} [2021-03-25 12:14:50,402 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 415 predicate places. [2021-03-25 12:14:50,402 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:50,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 462 places, 491 transitions, 13624 flow [2021-03-25 12:14:50,402 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 462 places, 491 transitions, 13624 flow [2021-03-25 12:14:50,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 461 places, 491 transitions, 13624 flow [2021-03-25 12:14:50,537 INFO L129 PetriNetUnfolder]: 307/790 cut-off events. [2021-03-25 12:14:50,538 INFO L130 PetriNetUnfolder]: For 66325/66421 co-relation queries the response was YES. [2021-03-25 12:14:50,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12382 conditions, 790 events. 307/790 cut-off events. For 66325/66421 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5696 event pairs, 18 based on Foata normal form. 21/810 useless extension candidates. Maximal degree in co-relation 12159. Up to 264 conditions per place. [2021-03-25 12:14:50,554 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:14:50,581 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:50,581 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:50,581 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-25 12:14:50,581 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 491 transitions, 13624 flow [2021-03-25 12:14:50,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:50,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:50,582 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:50,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-25 12:14:50,582 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1583019002, now seen corresponding path program 2 times [2021-03-25 12:14:50,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:50,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813293731] [2021-03-25 12:14:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:50,589 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:50,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:50,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:50,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:50,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:50,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:50,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:50,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:50,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:50,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:50,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:50,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:50,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:50,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:50,652 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:14:50,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:14:50,665 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:50,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:50,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813293731] [2021-03-25 12:14:50,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:50,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:50,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959751083] [2021-03-25 12:14:50,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:50,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:50,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:50,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:50,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:50,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 491 transitions, 13624 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:50,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:50,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:50,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:51,104 INFO L129 PetriNetUnfolder]: 348/861 cut-off events. [2021-03-25 12:14:51,105 INFO L130 PetriNetUnfolder]: For 70402/70425 co-relation queries the response was YES. [2021-03-25 12:14:51,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13872 conditions, 861 events. 348/861 cut-off events. For 70402/70425 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 5944 event pairs, 41 based on Foata normal form. 8/866 useless extension candidates. Maximal degree in co-relation 13643. Up to 704 conditions per place. [2021-03-25 12:14:51,119 INFO L132 encePairwiseOnDemand]: 80/92 looper letters, 426 selfloop transitions, 56 changer transitions 3/493 dead transitions. [2021-03-25 12:14:51,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 493 transitions, 14634 flow [2021-03-25 12:14:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:14:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:14:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 333 transitions. [2021-03-25 12:14:51,120 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3290513833992095 [2021-03-25 12:14:51,120 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 333 transitions. [2021-03-25 12:14:51,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 333 transitions. [2021-03-25 12:14:51,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:51,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 333 transitions. [2021-03-25 12:14:51,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.272727272727273) internal successors, (333), 11 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:51,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:51,121 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 92.0) internal successors, (1104), 12 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:51,121 INFO L185 Difference]: Start difference. First operand has 461 places, 491 transitions, 13624 flow. Second operand 11 states and 333 transitions. [2021-03-25 12:14:51,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 493 transitions, 14634 flow [2021-03-25 12:14:51,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 493 transitions, 14236 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:51,557 INFO L241 Difference]: Finished difference. Result has 463 places, 489 transitions, 13322 flow [2021-03-25 12:14:51,557 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13226, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13322, PETRI_PLACES=463, PETRI_TRANSITIONS=489} [2021-03-25 12:14:51,558 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 416 predicate places. [2021-03-25 12:14:51,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:51,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 489 transitions, 13322 flow [2021-03-25 12:14:51,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 489 transitions, 13322 flow [2021-03-25 12:14:51,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 489 transitions, 13322 flow [2021-03-25 12:14:51,695 INFO L129 PetriNetUnfolder]: 315/806 cut-off events. [2021-03-25 12:14:51,695 INFO L130 PetriNetUnfolder]: For 66275/66339 co-relation queries the response was YES. [2021-03-25 12:14:51,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12510 conditions, 806 events. 315/806 cut-off events. For 66275/66339 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 5796 event pairs, 17 based on Foata normal form. 14/819 useless extension candidates. Maximal degree in co-relation 12323. Up to 269 conditions per place. [2021-03-25 12:14:51,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:51,739 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:51,739 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:51,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 12:14:51,740 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 489 transitions, 13322 flow [2021-03-25 12:14:51,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:51,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:51,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:51,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-25 12:14:51,740 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:51,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1323372867, now seen corresponding path program 114 times [2021-03-25 12:14:51,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:51,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348917068] [2021-03-25 12:14:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:51,747 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:51,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:51,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:51,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:51,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:51,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:51,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:51,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:51,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:51,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:51,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:51,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:51,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:51,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:51,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:51,824 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:51,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:51,828 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:51,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:51,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348917068] [2021-03-25 12:14:51,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:51,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:51,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027390801] [2021-03-25 12:14:51,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:51,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:51,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:51,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:51,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:51,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 489 transitions, 13322 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:51,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:51,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:51,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:52,277 INFO L129 PetriNetUnfolder]: 348/864 cut-off events. [2021-03-25 12:14:52,277 INFO L130 PetriNetUnfolder]: For 70186/70201 co-relation queries the response was YES. [2021-03-25 12:14:52,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13785 conditions, 864 events. 348/864 cut-off events. For 70186/70201 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5987 event pairs, 41 based on Foata normal form. 8/870 useless extension candidates. Maximal degree in co-relation 13596. Up to 704 conditions per place. [2021-03-25 12:14:52,291 INFO L132 encePairwiseOnDemand]: 80/92 looper letters, 424 selfloop transitions, 60 changer transitions 2/494 dead transitions. [2021-03-25 12:14:52,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 494 transitions, 14546 flow [2021-03-25 12:14:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:14:52,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3391304347826087 [2021-03-25 12:14:52,292 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:14:52,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:14:52,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:52,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:14:52,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:52,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:52,293 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:52,293 INFO L185 Difference]: Start difference. First operand has 459 places, 489 transitions, 13322 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:14:52,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 494 transitions, 14546 flow [2021-03-25 12:14:52,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 494 transitions, 14426 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:52,780 INFO L241 Difference]: Finished difference. Result has 462 places, 491 transitions, 13479 flow [2021-03-25 12:14:52,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13202, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13479, PETRI_PLACES=462, PETRI_TRANSITIONS=491} [2021-03-25 12:14:52,780 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 415 predicate places. [2021-03-25 12:14:52,780 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:52,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 462 places, 491 transitions, 13479 flow [2021-03-25 12:14:52,781 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 462 places, 491 transitions, 13479 flow [2021-03-25 12:14:52,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 462 places, 491 transitions, 13479 flow [2021-03-25 12:14:52,948 INFO L129 PetriNetUnfolder]: 306/790 cut-off events. [2021-03-25 12:14:52,948 INFO L130 PetriNetUnfolder]: For 65880/65976 co-relation queries the response was YES. [2021-03-25 12:14:52,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12339 conditions, 790 events. 306/790 cut-off events. For 65880/65976 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5705 event pairs, 18 based on Foata normal form. 21/809 useless extension candidates. Maximal degree in co-relation 12113. Up to 266 conditions per place. [2021-03-25 12:14:52,965 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:53,006 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:53,007 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:53,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 227 [2021-03-25 12:14:53,007 INFO L480 AbstractCegarLoop]: Abstraction has has 462 places, 491 transitions, 13479 flow [2021-03-25 12:14:53,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:53,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:53,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:53,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-25 12:14:53,007 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:53,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:53,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1325998643, now seen corresponding path program 115 times [2021-03-25 12:14:53,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:53,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662679821] [2021-03-25 12:14:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:53,016 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:53,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:53,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:53,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:53,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:53,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:53,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:53,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:53,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:53,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:53,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:53,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:53,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:53,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:53,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:53,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:53,089 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:53,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:53,093 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:53,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662679821] [2021-03-25 12:14:53,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:53,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:53,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557598288] [2021-03-25 12:14:53,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:53,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:53,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:53,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:53,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:53,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 491 transitions, 13479 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:53,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:53,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:53,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:53,585 INFO L129 PetriNetUnfolder]: 348/862 cut-off events. [2021-03-25 12:14:53,585 INFO L130 PetriNetUnfolder]: For 73215/73238 co-relation queries the response was YES. [2021-03-25 12:14:53,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13941 conditions, 862 events. 348/862 cut-off events. For 73215/73238 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5951 event pairs, 43 based on Foata normal form. 8/867 useless extension candidates. Maximal degree in co-relation 13709. Up to 701 conditions per place. [2021-03-25 12:14:53,600 INFO L132 encePairwiseOnDemand]: 80/92 looper letters, 420 selfloop transitions, 67 changer transitions 2/497 dead transitions. [2021-03-25 12:14:53,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 497 transitions, 14731 flow [2021-03-25 12:14:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 367 transitions. [2021-03-25 12:14:53,601 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33242753623188404 [2021-03-25 12:14:53,601 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 367 transitions. [2021-03-25 12:14:53,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 367 transitions. [2021-03-25 12:14:53,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:53,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 367 transitions. [2021-03-25 12:14:53,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:53,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:53,602 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:53,602 INFO L185 Difference]: Start difference. First operand has 462 places, 491 transitions, 13479 flow. Second operand 12 states and 367 transitions. [2021-03-25 12:14:53,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 497 transitions, 14731 flow [2021-03-25 12:14:54,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 497 transitions, 14563 flow, removed 28 selfloop flow, removed 8 redundant places. [2021-03-25 12:14:54,053 INFO L241 Difference]: Finished difference. Result has 470 places, 494 transitions, 13630 flow [2021-03-25 12:14:54,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13315, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13630, PETRI_PLACES=470, PETRI_TRANSITIONS=494} [2021-03-25 12:14:54,053 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 423 predicate places. [2021-03-25 12:14:54,053 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:54,053 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 494 transitions, 13630 flow [2021-03-25 12:14:54,053 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 494 transitions, 13630 flow [2021-03-25 12:14:54,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 470 places, 494 transitions, 13630 flow [2021-03-25 12:14:54,223 INFO L129 PetriNetUnfolder]: 306/789 cut-off events. [2021-03-25 12:14:54,224 INFO L130 PetriNetUnfolder]: For 68072/68184 co-relation queries the response was YES. [2021-03-25 12:14:54,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12446 conditions, 789 events. 306/789 cut-off events. For 68072/68184 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5733 event pairs, 20 based on Foata normal form. 22/809 useless extension candidates. Maximal degree in co-relation 12217. Up to 268 conditions per place. [2021-03-25 12:14:54,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:14:54,266 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:54,266 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:54,266 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 213 [2021-03-25 12:14:54,266 INFO L480 AbstractCegarLoop]: Abstraction has has 470 places, 494 transitions, 13630 flow [2021-03-25 12:14:54,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:54,266 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:54,266 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:54,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-25 12:14:54,266 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:54,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:54,266 INFO L82 PathProgramCache]: Analyzing trace with hash -39796375, now seen corresponding path program 116 times [2021-03-25 12:14:54,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:54,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077809904] [2021-03-25 12:14:54,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:54,272 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:54,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:54,280 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:54,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:54,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:54,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:54,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:54,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:54,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:54,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:54,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:54,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:54,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:54,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:54,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:54,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:54,347 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:54,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:54,353 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:54,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:54,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077809904] [2021-03-25 12:14:54,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:54,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:54,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32183969] [2021-03-25 12:14:54,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:54,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:54,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:54,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:54,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:54,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 494 transitions, 13630 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:54,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:54,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:54,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:54,812 INFO L129 PetriNetUnfolder]: 348/867 cut-off events. [2021-03-25 12:14:54,812 INFO L130 PetriNetUnfolder]: For 73857/73886 co-relation queries the response was YES. [2021-03-25 12:14:54,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13996 conditions, 867 events. 348/867 cut-off events. For 73857/73886 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6056 event pairs, 40 based on Foata normal form. 16/881 useless extension candidates. Maximal degree in co-relation 13761. Up to 671 conditions per place. [2021-03-25 12:14:54,827 INFO L132 encePairwiseOnDemand]: 79/92 looper letters, 380 selfloop transitions, 109 changer transitions 2/499 dead transitions. [2021-03-25 12:14:54,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 499 transitions, 14837 flow [2021-03-25 12:14:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:14:54,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:14:54,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:14:54,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3423913043478261 [2021-03-25 12:14:54,828 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:14:54,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:14:54,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:54,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:14:54,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:54,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:54,829 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:54,829 INFO L185 Difference]: Start difference. First operand has 470 places, 494 transitions, 13630 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:14:54,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 499 transitions, 14837 flow [2021-03-25 12:14:55,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 499 transitions, 14629 flow, removed 33 selfloop flow, removed 10 redundant places. [2021-03-25 12:14:55,298 INFO L241 Difference]: Finished difference. Result has 472 places, 495 transitions, 13730 flow [2021-03-25 12:14:55,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13422, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13730, PETRI_PLACES=472, PETRI_TRANSITIONS=495} [2021-03-25 12:14:55,299 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 425 predicate places. [2021-03-25 12:14:55,299 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:55,299 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 472 places, 495 transitions, 13730 flow [2021-03-25 12:14:55,299 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 472 places, 495 transitions, 13730 flow [2021-03-25 12:14:55,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 471 places, 495 transitions, 13730 flow [2021-03-25 12:14:55,449 INFO L129 PetriNetUnfolder]: 306/795 cut-off events. [2021-03-25 12:14:55,449 INFO L130 PetriNetUnfolder]: For 66443/66539 co-relation queries the response was YES. [2021-03-25 12:14:55,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12502 conditions, 795 events. 306/795 cut-off events. For 66443/66539 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 5769 event pairs, 18 based on Foata normal form. 21/815 useless extension candidates. Maximal degree in co-relation 12274. Up to 266 conditions per place. [2021-03-25 12:14:55,467 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:14:55,494 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:55,494 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:55,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-03-25 12:14:55,494 INFO L480 AbstractCegarLoop]: Abstraction has has 471 places, 495 transitions, 13730 flow [2021-03-25 12:14:55,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:55,494 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:55,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:55,495 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-25 12:14:55,495 INFO L428 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:55,495 INFO L82 PathProgramCache]: Analyzing trace with hash -471199945, now seen corresponding path program 117 times [2021-03-25 12:14:55,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:55,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440881597] [2021-03-25 12:14:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:55,501 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:55,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:55,505 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:55,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:55,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:55,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:55,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:55,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:55,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:55,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:55,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:55,579 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:14:55,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:55,592 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:55,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:55,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:55,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440881597] [2021-03-25 12:14:55,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:55,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:14:55,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807593154] [2021-03-25 12:14:55,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:14:55,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:55,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:14:55,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:14:55,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:55,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 495 transitions, 13730 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:55,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:55,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:55,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:56,131 INFO L129 PetriNetUnfolder]: 348/873 cut-off events. [2021-03-25 12:14:56,131 INFO L130 PetriNetUnfolder]: For 72375/72398 co-relation queries the response was YES. [2021-03-25 12:14:56,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14056 conditions, 873 events. 348/873 cut-off events. For 72375/72398 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6139 event pairs, 40 based on Foata normal form. 10/881 useless extension candidates. Maximal degree in co-relation 13822. Up to 654 conditions per place. [2021-03-25 12:14:56,146 INFO L132 encePairwiseOnDemand]: 79/92 looper letters, 352 selfloop transitions, 138 changer transitions 2/500 dead transitions. [2021-03-25 12:14:56,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 500 transitions, 14883 flow [2021-03-25 12:14:56,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:56,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:56,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 375 transitions. [2021-03-25 12:14:56,148 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33967391304347827 [2021-03-25 12:14:56,148 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 375 transitions. [2021-03-25 12:14:56,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 375 transitions. [2021-03-25 12:14:56,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:56,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 375 transitions. [2021-03-25 12:14:56,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.25) internal successors, (375), 12 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:56,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:56,149 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:56,149 INFO L185 Difference]: Start difference. First operand has 471 places, 495 transitions, 13730 flow. Second operand 12 states and 375 transitions. [2021-03-25 12:14:56,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 500 transitions, 14883 flow [2021-03-25 12:14:56,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 500 transitions, 14588 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-03-25 12:14:56,587 INFO L241 Difference]: Finished difference. Result has 476 places, 496 transitions, 13831 flow [2021-03-25 12:14:56,587 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13437, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13831, PETRI_PLACES=476, PETRI_TRANSITIONS=496} [2021-03-25 12:14:56,587 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 429 predicate places. [2021-03-25 12:14:56,587 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:56,587 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 496 transitions, 13831 flow [2021-03-25 12:14:56,587 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 496 transitions, 13831 flow [2021-03-25 12:14:56,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 475 places, 496 transitions, 13831 flow [2021-03-25 12:14:56,745 INFO L129 PetriNetUnfolder]: 306/795 cut-off events. [2021-03-25 12:14:56,745 INFO L130 PetriNetUnfolder]: For 67071/67183 co-relation queries the response was YES. [2021-03-25 12:14:56,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12566 conditions, 795 events. 306/795 cut-off events. For 67071/67183 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 5792 event pairs, 18 based on Foata normal form. 22/815 useless extension candidates. Maximal degree in co-relation 12338. Up to 266 conditions per place. [2021-03-25 12:14:56,762 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 12:14:56,789 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:56,789 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:56,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 202 [2021-03-25 12:14:56,789 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 496 transitions, 13831 flow [2021-03-25 12:14:56,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:56,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:56,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:56,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-25 12:14:56,789 INFO L428 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:56,790 INFO L82 PathProgramCache]: Analyzing trace with hash -315082943, now seen corresponding path program 118 times [2021-03-25 12:14:56,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:56,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955047294] [2021-03-25 12:14:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:56,796 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:56,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:56,800 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:56,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:56,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:56,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:56,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:56,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:56,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:56,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:56,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:56,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:56,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:56,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:56,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:56,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:56,861 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:56,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:56,864 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:56,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:56,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955047294] [2021-03-25 12:14:56,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:56,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:56,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373542185] [2021-03-25 12:14:56,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:56,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:56,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:56,868 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:56,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 496 transitions, 13831 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:56,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:56,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:56,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:57,378 INFO L129 PetriNetUnfolder]: 349/876 cut-off events. [2021-03-25 12:14:57,379 INFO L130 PetriNetUnfolder]: For 75543/75591 co-relation queries the response was YES. [2021-03-25 12:14:57,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14278 conditions, 876 events. 349/876 cut-off events. For 75543/75591 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6160 event pairs, 46 based on Foata normal form. 9/881 useless extension candidates. Maximal degree in co-relation 14044. Up to 702 conditions per place. [2021-03-25 12:14:57,394 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 416 selfloop transitions, 76 changer transitions 7/507 dead transitions. [2021-03-25 12:14:57,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 507 transitions, 15411 flow [2021-03-25 12:14:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:14:57,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3351449275362319 [2021-03-25 12:14:57,395 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:14:57,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:14:57,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:57,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:14:57,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:57,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:57,396 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:57,396 INFO L185 Difference]: Start difference. First operand has 475 places, 496 transitions, 13831 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:14:57,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 507 transitions, 15411 flow [2021-03-25 12:14:57,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 507 transitions, 15033 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-25 12:14:57,848 INFO L241 Difference]: Finished difference. Result has 478 places, 499 transitions, 13841 flow [2021-03-25 12:14:57,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13463, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13841, PETRI_PLACES=478, PETRI_TRANSITIONS=499} [2021-03-25 12:14:57,848 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 431 predicate places. [2021-03-25 12:14:57,848 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:57,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 499 transitions, 13841 flow [2021-03-25 12:14:57,848 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 499 transitions, 13841 flow [2021-03-25 12:14:57,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 499 transitions, 13841 flow [2021-03-25 12:14:57,998 INFO L129 PetriNetUnfolder]: 316/812 cut-off events. [2021-03-25 12:14:57,998 INFO L130 PetriNetUnfolder]: For 70484/70548 co-relation queries the response was YES. [2021-03-25 12:14:58,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12860 conditions, 812 events. 316/812 cut-off events. For 70484/70548 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5861 event pairs, 19 based on Foata normal form. 14/825 useless extension candidates. Maximal degree in co-relation 12630. Up to 272 conditions per place. [2021-03-25 12:14:58,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 12:14:58,043 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:58,043 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:58,043 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-03-25 12:14:58,043 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 499 transitions, 13841 flow [2021-03-25 12:14:58,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:58,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:58,044 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:58,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-25 12:14:58,044 INFO L428 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1831087817, now seen corresponding path program 119 times [2021-03-25 12:14:58,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:58,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104869630] [2021-03-25 12:14:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:58,051 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:58,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:58,055 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:58,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:58,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:58,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:58,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:58,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:58,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:58,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:58,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:58,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:58,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:58,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:58,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:58,116 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:58,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:58,119 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:58,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:58,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104869630] [2021-03-25 12:14:58,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:58,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:58,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390864103] [2021-03-25 12:14:58,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:58,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:58,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:58,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:58,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:58,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 499 transitions, 13841 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:58,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:58,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:58,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:58,614 INFO L129 PetriNetUnfolder]: 347/866 cut-off events. [2021-03-25 12:14:58,614 INFO L130 PetriNetUnfolder]: For 73902/73931 co-relation queries the response was YES. [2021-03-25 12:14:58,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14116 conditions, 866 events. 347/866 cut-off events. For 73902/73931 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6020 event pairs, 45 based on Foata normal form. 14/877 useless extension candidates. Maximal degree in co-relation 13880. Up to 694 conditions per place. [2021-03-25 12:14:58,629 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 405 selfloop transitions, 90 changer transitions 2/505 dead transitions. [2021-03-25 12:14:58,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 505 transitions, 15132 flow [2021-03-25 12:14:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:14:58,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:14:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2021-03-25 12:14:58,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33605072463768115 [2021-03-25 12:14:58,630 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 371 transitions. [2021-03-25 12:14:58,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 371 transitions. [2021-03-25 12:14:58,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:58,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 371 transitions. [2021-03-25 12:14:58,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:58,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:58,631 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 92.0) internal successors, (1196), 13 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:58,631 INFO L185 Difference]: Start difference. First operand has 478 places, 499 transitions, 13841 flow. Second operand 12 states and 371 transitions. [2021-03-25 12:14:58,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 505 transitions, 15132 flow [2021-03-25 12:14:59,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 505 transitions, 14894 flow, removed 79 selfloop flow, removed 5 redundant places. [2021-03-25 12:14:59,104 INFO L241 Difference]: Finished difference. Result has 488 places, 502 transitions, 13998 flow [2021-03-25 12:14:59,104 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13603, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13998, PETRI_PLACES=488, PETRI_TRANSITIONS=502} [2021-03-25 12:14:59,105 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 441 predicate places. [2021-03-25 12:14:59,105 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:14:59,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 488 places, 502 transitions, 13998 flow [2021-03-25 12:14:59,105 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 488 places, 502 transitions, 13998 flow [2021-03-25 12:14:59,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 488 places, 502 transitions, 13998 flow [2021-03-25 12:14:59,284 INFO L129 PetriNetUnfolder]: 307/793 cut-off events. [2021-03-25 12:14:59,285 INFO L130 PetriNetUnfolder]: For 69395/69491 co-relation queries the response was YES. [2021-03-25 12:14:59,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12684 conditions, 793 events. 307/793 cut-off events. For 69395/69491 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5730 event pairs, 17 based on Foata normal form. 21/812 useless extension candidates. Maximal degree in co-relation 12449. Up to 266 conditions per place. [2021-03-25 12:14:59,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 12:14:59,331 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:14:59,331 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:14:59,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 227 [2021-03-25 12:14:59,332 INFO L480 AbstractCegarLoop]: Abstraction has has 488 places, 502 transitions, 13998 flow [2021-03-25 12:14:59,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:59,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:14:59,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:14:59,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-25 12:14:59,332 INFO L428 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:14:59,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:14:59,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2114465839, now seen corresponding path program 120 times [2021-03-25 12:14:59,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:14:59,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417048644] [2021-03-25 12:14:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:14:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:14:59,339 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:14:59,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:14:59,344 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:14:59,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:14:59,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:59,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:59,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:59,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:59,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:59,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:59,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:59,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:59,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:59,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:59,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:14:59,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:14:59,405 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:14:59,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:14:59,409 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:14:59,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:14:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:14:59,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417048644] [2021-03-25 12:14:59,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:14:59,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:14:59,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249949570] [2021-03-25 12:14:59,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:14:59,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:14:59,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:14:59,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:14:59,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2021-03-25 12:14:59,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 502 transitions, 13998 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:59,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:14:59,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2021-03-25 12:14:59,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:14:59,926 INFO L129 PetriNetUnfolder]: 353/883 cut-off events. [2021-03-25 12:14:59,926 INFO L130 PetriNetUnfolder]: For 79032/79047 co-relation queries the response was YES. [2021-03-25 12:14:59,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14689 conditions, 883 events. 353/883 cut-off events. For 79032/79047 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 6212 event pairs, 41 based on Foata normal form. 8/889 useless extension candidates. Maximal degree in co-relation 14448. Up to 710 conditions per place. [2021-03-25 12:14:59,943 INFO L132 encePairwiseOnDemand]: 81/92 looper letters, 423 selfloop transitions, 86 changer transitions 3/520 dead transitions. [2021-03-25 12:14:59,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 520 transitions, 16281 flow [2021-03-25 12:14:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:14:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:14:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 399 transitions. [2021-03-25 12:14:59,944 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33361204013377926 [2021-03-25 12:14:59,944 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 399 transitions. [2021-03-25 12:14:59,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 399 transitions. [2021-03-25 12:14:59,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:14:59,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 399 transitions. [2021-03-25 12:14:59,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.692307692307693) internal successors, (399), 13 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:59,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:59,945 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:14:59,945 INFO L185 Difference]: Start difference. First operand has 488 places, 502 transitions, 13998 flow. Second operand 13 states and 399 transitions. [2021-03-25 12:14:59,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 520 transitions, 16281 flow [2021-03-25 12:15:00,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 520 transitions, 15962 flow, removed 57 selfloop flow, removed 10 redundant places. [2021-03-25 12:15:00,577 INFO L241 Difference]: Finished difference. Result has 492 places, 516 transitions, 14912 flow [2021-03-25 12:15:00,577 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=13698, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14912, PETRI_PLACES=492, PETRI_TRANSITIONS=516} [2021-03-25 12:15:00,577 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 445 predicate places. [2021-03-25 12:15:00,577 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:00,577 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 492 places, 516 transitions, 14912 flow [2021-03-25 12:15:00,577 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 492 places, 516 transitions, 14912 flow [2021-03-25 12:15:00,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 492 places, 516 transitions, 14912 flow [2021-03-25 12:15:00,739 INFO L129 PetriNetUnfolder]: 312/807 cut-off events. [2021-03-25 12:15:00,739 INFO L130 PetriNetUnfolder]: For 73348/73442 co-relation queries the response was YES. [2021-03-25 12:15:00,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13068 conditions, 807 events. 312/807 cut-off events. For 73348/73442 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 5900 event pairs, 17 based on Foata normal form. 19/825 useless extension candidates. Maximal degree in co-relation 12833. Up to 275 conditions per place. [2021-03-25 12:15:00,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 514 [2021-03-25 12:15:00,900 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:00,900 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:00,901 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 324 [2021-03-25 12:15:00,901 INFO L480 AbstractCegarLoop]: Abstraction has has 492 places, 516 transitions, 14916 flow [2021-03-25 12:15:00,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:00,901 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:00,901 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:00,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-25 12:15:00,901 INFO L428 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:00,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1027904305, now seen corresponding path program 121 times [2021-03-25 12:15:00,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:00,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811915977] [2021-03-25 12:15:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:00,910 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:00,915 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:00,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:00,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:00,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:00,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:00,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:00,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:00,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:00,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:00,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:00,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:00,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:00,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:00,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:00,987 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:00,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:01,004 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:01,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:01,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:01,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811915977] [2021-03-25 12:15:01,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:01,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:01,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191477323] [2021-03-25 12:15:01,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:01,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:01,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:01,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:01,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 93 [2021-03-25 12:15:01,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 516 transitions, 14916 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:01,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:01,009 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 93 [2021-03-25 12:15:01,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:01,611 INFO L129 PetriNetUnfolder]: 351/880 cut-off events. [2021-03-25 12:15:01,611 INFO L130 PetriNetUnfolder]: For 80550/80573 co-relation queries the response was YES. [2021-03-25 12:15:01,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14601 conditions, 880 events. 351/880 cut-off events. For 80550/80573 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6198 event pairs, 36 based on Foata normal form. 10/888 useless extension candidates. Maximal degree in co-relation 14360. Up to 667 conditions per place. [2021-03-25 12:15:01,631 INFO L132 encePairwiseOnDemand]: 79/93 looper letters, 370 selfloop transitions, 133 changer transitions 8/519 dead transitions. [2021-03-25 12:15:01,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 519 transitions, 16054 flow [2021-03-25 12:15:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:01,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:15:01,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33154121863799285 [2021-03-25 12:15:01,632 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:15:01,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:15:01,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:01,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:15:01,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:01,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 93.0) internal successors, (1209), 13 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:01,633 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 93.0) internal successors, (1209), 13 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:01,633 INFO L185 Difference]: Start difference. First operand has 492 places, 516 transitions, 14916 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:15:01,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 519 transitions, 16054 flow [2021-03-25 12:15:02,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 519 transitions, 15296 flow, removed 340 selfloop flow, removed 8 redundant places. [2021-03-25 12:15:02,197 INFO L241 Difference]: Finished difference. Result has 497 places, 510 transitions, 14458 flow [2021-03-25 12:15:02,198 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=14160, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14458, PETRI_PLACES=497, PETRI_TRANSITIONS=510} [2021-03-25 12:15:02,198 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:02,198 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:02,198 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 510 transitions, 14458 flow [2021-03-25 12:15:02,198 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 510 transitions, 14458 flow [2021-03-25 12:15:02,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 510 transitions, 14458 flow [2021-03-25 12:15:02,379 INFO L129 PetriNetUnfolder]: 310/801 cut-off events. [2021-03-25 12:15:02,379 INFO L130 PetriNetUnfolder]: For 69153/69249 co-relation queries the response was YES. [2021-03-25 12:15:02,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12799 conditions, 801 events. 310/801 cut-off events. For 69153/69249 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5784 event pairs, 17 based on Foata normal form. 21/820 useless extension candidates. Maximal degree in co-relation 12564. Up to 265 conditions per place. [2021-03-25 12:15:02,403 INFO L142 LiptonReduction]: Number of co-enabled transitions 514 [2021-03-25 12:15:02,507 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:02,508 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:02,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 12:15:02,508 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 510 transitions, 14463 flow [2021-03-25 12:15:02,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:02,508 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:02,508 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:02,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-25 12:15:02,508 INFO L428 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:02,508 INFO L82 PathProgramCache]: Analyzing trace with hash -2129207649, now seen corresponding path program 1 times [2021-03-25 12:15:02,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:02,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147070454] [2021-03-25 12:15:02,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:02,514 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:02,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:02,520 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:02,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:02,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:02,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:02,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:02,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:02,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:02,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:02,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:02,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:02,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:02,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:02,589 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:02,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:02,592 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:02,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:02,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147070454] [2021-03-25 12:15:02,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:02,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:02,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90974007] [2021-03-25 12:15:02,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:02,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:02,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:02,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:02,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 94 [2021-03-25 12:15:02,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 510 transitions, 14463 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:02,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:02,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 94 [2021-03-25 12:15:02,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:03,147 INFO L129 PetriNetUnfolder]: 352/879 cut-off events. [2021-03-25 12:15:03,148 INFO L130 PetriNetUnfolder]: For 79806/79854 co-relation queries the response was YES. [2021-03-25 12:15:03,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14553 conditions, 879 events. 352/879 cut-off events. For 79806/79854 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 6210 event pairs, 43 based on Foata normal form. 9/883 useless extension candidates. Maximal degree in co-relation 14312. Up to 715 conditions per place. [2021-03-25 12:15:03,164 INFO L132 encePairwiseOnDemand]: 81/94 looper letters, 433 selfloop transitions, 74 changer transitions 3/518 dead transitions. [2021-03-25 12:15:03,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 518 transitions, 16040 flow [2021-03-25 12:15:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:15:03,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33297872340425533 [2021-03-25 12:15:03,165 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:15:03,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:15:03,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:03,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:15:03,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:03,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:03,166 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:03,166 INFO L185 Difference]: Start difference. First operand has 495 places, 510 transitions, 14463 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:15:03,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 518 transitions, 16040 flow [2021-03-25 12:15:03,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 518 transitions, 15674 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:03,723 INFO L241 Difference]: Finished difference. Result has 494 places, 514 transitions, 14629 flow [2021-03-25 12:15:03,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14097, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14629, PETRI_PLACES=494, PETRI_TRANSITIONS=514} [2021-03-25 12:15:03,723 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 447 predicate places. [2021-03-25 12:15:03,723 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:03,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 494 places, 514 transitions, 14629 flow [2021-03-25 12:15:03,723 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 494 places, 514 transitions, 14629 flow [2021-03-25 12:15:03,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 494 places, 514 transitions, 14629 flow [2021-03-25 12:15:03,927 INFO L129 PetriNetUnfolder]: 311/802 cut-off events. [2021-03-25 12:15:03,927 INFO L130 PetriNetUnfolder]: For 74389/74485 co-relation queries the response was YES. [2021-03-25 12:15:03,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12949 conditions, 802 events. 311/802 cut-off events. For 74389/74485 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 5819 event pairs, 19 based on Foata normal form. 21/821 useless extension candidates. Maximal degree in co-relation 12713. Up to 269 conditions per place. [2021-03-25 12:15:03,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 518 [2021-03-25 12:15:03,978 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:03,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:03,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-03-25 12:15:03,979 INFO L480 AbstractCegarLoop]: Abstraction has has 494 places, 514 transitions, 14629 flow [2021-03-25 12:15:03,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:03,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:03,979 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:03,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-25 12:15:03,979 INFO L428 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:03,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1851206301, now seen corresponding path program 2 times [2021-03-25 12:15:03,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:03,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003142514] [2021-03-25 12:15:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:03,994 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:03,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:03,999 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:03,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:04,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:04,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:04,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:04,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:04,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:04,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:04,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:04,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:04,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:04,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:04,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:04,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:04,096 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:04,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:04,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003142514] [2021-03-25 12:15:04,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:04,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:04,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344276245] [2021-03-25 12:15:04,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:04,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:04,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:04,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:04,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 94 [2021-03-25 12:15:04,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 514 transitions, 14629 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:04,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:04,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 94 [2021-03-25 12:15:04,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:04,687 INFO L129 PetriNetUnfolder]: 350/874 cut-off events. [2021-03-25 12:15:04,687 INFO L130 PetriNetUnfolder]: For 80681/80704 co-relation queries the response was YES. [2021-03-25 12:15:04,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14454 conditions, 874 events. 350/874 cut-off events. For 80681/80704 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6121 event pairs, 38 based on Foata normal form. 10/882 useless extension candidates. Maximal degree in co-relation 14212. Up to 686 conditions per place. [2021-03-25 12:15:04,703 INFO L132 encePairwiseOnDemand]: 80/94 looper letters, 408 selfloop transitions, 99 changer transitions 4/519 dead transitions. [2021-03-25 12:15:04,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 519 transitions, 15816 flow [2021-03-25 12:15:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:15:04,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3355899419729207 [2021-03-25 12:15:04,704 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:15:04,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:15:04,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:04,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:15:04,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:04,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:04,705 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:04,705 INFO L185 Difference]: Start difference. First operand has 494 places, 514 transitions, 14629 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:15:04,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 519 transitions, 15816 flow [2021-03-25 12:15:05,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 519 transitions, 15502 flow, removed 102 selfloop flow, removed 7 redundant places. [2021-03-25 12:15:05,323 INFO L241 Difference]: Finished difference. Result has 499 places, 511 transitions, 14541 flow [2021-03-25 12:15:05,323 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14315, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14541, PETRI_PLACES=499, PETRI_TRANSITIONS=511} [2021-03-25 12:15:05,323 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:15:05,323 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:05,323 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 511 transitions, 14541 flow [2021-03-25 12:15:05,323 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 511 transitions, 14541 flow [2021-03-25 12:15:05,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 511 transitions, 14541 flow [2021-03-25 12:15:05,484 INFO L129 PetriNetUnfolder]: 309/804 cut-off events. [2021-03-25 12:15:05,484 INFO L130 PetriNetUnfolder]: For 71535/71631 co-relation queries the response was YES. [2021-03-25 12:15:05,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12901 conditions, 804 events. 309/804 cut-off events. For 71535/71631 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 5837 event pairs, 20 based on Foata normal form. 21/824 useless extension candidates. Maximal degree in co-relation 12664. Up to 267 conditions per place. [2021-03-25 12:15:05,502 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 12:15:05,533 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:05,533 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:05,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 210 [2021-03-25 12:15:05,533 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 511 transitions, 14541 flow [2021-03-25 12:15:05,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:05,533 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:05,533 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:05,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-25 12:15:05,533 INFO L428 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1094231760, now seen corresponding path program 1 times [2021-03-25 12:15:05,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:05,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079127095] [2021-03-25 12:15:05,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:05,540 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:05,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:05,545 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:05,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:05,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:05,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:05,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:05,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:05,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:05,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:05,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:05,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:05,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:05,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:05,605 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:05,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:05,608 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:05,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:05,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079127095] [2021-03-25 12:15:05,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:05,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:05,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770740439] [2021-03-25 12:15:05,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:05,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:05,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:05,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:05,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 94 [2021-03-25 12:15:05,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 511 transitions, 14541 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:05,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:05,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 94 [2021-03-25 12:15:05,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:06,104 INFO L129 PetriNetUnfolder]: 348/877 cut-off events. [2021-03-25 12:15:06,105 INFO L130 PetriNetUnfolder]: For 78223/78246 co-relation queries the response was YES. [2021-03-25 12:15:06,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14412 conditions, 877 events. 348/877 cut-off events. For 78223/78246 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6181 event pairs, 44 based on Foata normal form. 8/882 useless extension candidates. Maximal degree in co-relation 14169. Up to 720 conditions per place. [2021-03-25 12:15:06,121 INFO L132 encePairwiseOnDemand]: 82/94 looper letters, 453 selfloop transitions, 50 changer transitions 2/513 dead transitions. [2021-03-25 12:15:06,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 513 transitions, 15632 flow [2021-03-25 12:15:06,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:15:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:15:06,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 281 transitions. [2021-03-25 12:15:06,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3321513002364066 [2021-03-25 12:15:06,122 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 281 transitions. [2021-03-25 12:15:06,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 281 transitions. [2021-03-25 12:15:06,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:06,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 281 transitions. [2021-03-25 12:15:06,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:06,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:06,123 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:06,123 INFO L185 Difference]: Start difference. First operand has 499 places, 511 transitions, 14541 flow. Second operand 9 states and 281 transitions. [2021-03-25 12:15:06,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 513 transitions, 15632 flow [2021-03-25 12:15:06,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 513 transitions, 15334 flow, removed 3 selfloop flow, removed 14 redundant places. [2021-03-25 12:15:06,696 INFO L241 Difference]: Finished difference. Result has 495 places, 510 transitions, 14380 flow [2021-03-25 12:15:06,696 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14243, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14380, PETRI_PLACES=495, PETRI_TRANSITIONS=510} [2021-03-25 12:15:06,697 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 448 predicate places. [2021-03-25 12:15:06,697 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:06,697 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 495 places, 510 transitions, 14380 flow [2021-03-25 12:15:06,697 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 495 places, 510 transitions, 14380 flow [2021-03-25 12:15:06,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 510 transitions, 14380 flow [2021-03-25 12:15:06,847 INFO L129 PetriNetUnfolder]: 308/800 cut-off events. [2021-03-25 12:15:06,848 INFO L130 PetriNetUnfolder]: For 69644/69740 co-relation queries the response was YES. [2021-03-25 12:15:06,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12772 conditions, 800 events. 308/800 cut-off events. For 69644/69740 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5824 event pairs, 17 based on Foata normal form. 21/819 useless extension candidates. Maximal degree in co-relation 12536. Up to 267 conditions per place. [2021-03-25 12:15:06,866 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 12:15:06,895 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:06,895 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:06,895 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 198 [2021-03-25 12:15:06,895 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 510 transitions, 14380 flow [2021-03-25 12:15:06,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:06,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:06,896 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:06,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-25 12:15:06,896 INFO L428 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:06,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:06,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1860543537, now seen corresponding path program 122 times [2021-03-25 12:15:06,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:06,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155816353] [2021-03-25 12:15:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:06,902 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:06,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:06,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:06,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:06,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:06,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:06,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:06,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:06,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:06,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:06,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:06,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:06,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:06,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:06,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:06,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:06,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:06,976 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:06,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:06,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155816353] [2021-03-25 12:15:06,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:06,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:06,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108205925] [2021-03-25 12:15:06,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:06,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:06,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:06,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:06,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 94 [2021-03-25 12:15:06,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 510 transitions, 14380 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:06,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:06,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 94 [2021-03-25 12:15:06,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:07,532 INFO L129 PetriNetUnfolder]: 347/873 cut-off events. [2021-03-25 12:15:07,532 INFO L130 PetriNetUnfolder]: For 75333/75348 co-relation queries the response was YES. [2021-03-25 12:15:07,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14298 conditions, 873 events. 347/873 cut-off events. For 75333/75348 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6118 event pairs, 39 based on Foata normal form. 8/879 useless extension candidates. Maximal degree in co-relation 14056. Up to 665 conditions per place. [2021-03-25 12:15:07,547 INFO L132 encePairwiseOnDemand]: 81/94 looper letters, 368 selfloop transitions, 133 changer transitions 4/513 dead transitions. [2021-03-25 12:15:07,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 513 transitions, 15515 flow [2021-03-25 12:15:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:07,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2021-03-25 12:15:07,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.33617021276595743 [2021-03-25 12:15:07,548 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 316 transitions. [2021-03-25 12:15:07,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 316 transitions. [2021-03-25 12:15:07,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:07,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 316 transitions. [2021-03-25 12:15:07,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.6) internal successors, (316), 10 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:07,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:07,549 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:07,549 INFO L185 Difference]: Start difference. First operand has 495 places, 510 transitions, 14380 flow. Second operand 10 states and 316 transitions. [2021-03-25 12:15:07,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 513 transitions, 15515 flow [2021-03-25 12:15:08,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 513 transitions, 15371 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:15:08,125 INFO L241 Difference]: Finished difference. Result has 497 places, 508 transitions, 14603 flow [2021-03-25 12:15:08,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14236, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14603, PETRI_PLACES=497, PETRI_TRANSITIONS=508} [2021-03-25 12:15:08,126 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:08,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:08,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 508 transitions, 14603 flow [2021-03-25 12:15:08,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 508 transitions, 14603 flow [2021-03-25 12:15:08,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 508 transitions, 14603 flow [2021-03-25 12:15:08,294 INFO L129 PetriNetUnfolder]: 307/802 cut-off events. [2021-03-25 12:15:08,294 INFO L130 PetriNetUnfolder]: For 70637/70733 co-relation queries the response was YES. [2021-03-25 12:15:08,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12917 conditions, 802 events. 307/802 cut-off events. For 70637/70733 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 5850 event pairs, 16 based on Foata normal form. 21/821 useless extension candidates. Maximal degree in co-relation 12705. Up to 268 conditions per place. [2021-03-25 12:15:08,316 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 12:15:08,347 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:08,347 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:08,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 221 [2021-03-25 12:15:08,347 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 508 transitions, 14603 flow [2021-03-25 12:15:08,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:08,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:08,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:08,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-25 12:15:08,347 INFO L428 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:08,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:08,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1762029788, now seen corresponding path program 4 times [2021-03-25 12:15:08,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:08,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983370050] [2021-03-25 12:15:08,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:08,355 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:08,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:08,360 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:08,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:08,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:08,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:08,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:08,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:08,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:08,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:08,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:08,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:08,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:08,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:08,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:08,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:08,419 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:08,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:08,422 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:08,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:08,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983370050] [2021-03-25 12:15:08,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:08,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:08,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713173939] [2021-03-25 12:15:08,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:08,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:08,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:08,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:08,425 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 94 [2021-03-25 12:15:08,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 508 transitions, 14603 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:08,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:08,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 94 [2021-03-25 12:15:08,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:08,933 INFO L129 PetriNetUnfolder]: 349/876 cut-off events. [2021-03-25 12:15:08,934 INFO L130 PetriNetUnfolder]: For 77946/77969 co-relation queries the response was YES. [2021-03-25 12:15:08,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14560 conditions, 876 events. 349/876 cut-off events. For 77946/77969 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 6166 event pairs, 42 based on Foata normal form. 8/881 useless extension candidates. Maximal degree in co-relation 14345. Up to 716 conditions per place. [2021-03-25 12:15:08,954 INFO L132 encePairwiseOnDemand]: 83/94 looper letters, 444 selfloop transitions, 61 changer transitions 2/515 dead transitions. [2021-03-25 12:15:08,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 515 transitions, 15966 flow [2021-03-25 12:15:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 337 transitions. [2021-03-25 12:15:08,956 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32591876208897486 [2021-03-25 12:15:08,956 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 337 transitions. [2021-03-25 12:15:08,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 337 transitions. [2021-03-25 12:15:08,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:08,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 337 transitions. [2021-03-25 12:15:08,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 11 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:08,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:08,957 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:08,957 INFO L185 Difference]: Start difference. First operand has 496 places, 508 transitions, 14603 flow. Second operand 11 states and 337 transitions. [2021-03-25 12:15:08,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 515 transitions, 15966 flow [2021-03-25 12:15:09,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 515 transitions, 15474 flow, removed 8 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:09,561 INFO L241 Difference]: Finished difference. Result has 497 places, 512 transitions, 14463 flow [2021-03-25 12:15:09,561 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14113, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14463, PETRI_PLACES=497, PETRI_TRANSITIONS=512} [2021-03-25 12:15:09,561 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:09,561 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:09,561 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 512 transitions, 14463 flow [2021-03-25 12:15:09,561 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 512 transitions, 14463 flow [2021-03-25 12:15:09,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 497 places, 512 transitions, 14463 flow [2021-03-25 12:15:09,753 INFO L129 PetriNetUnfolder]: 311/807 cut-off events. [2021-03-25 12:15:09,753 INFO L130 PetriNetUnfolder]: For 70056/70151 co-relation queries the response was YES. [2021-03-25 12:15:09,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12967 conditions, 807 events. 311/807 cut-off events. For 70056/70151 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 5858 event pairs, 18 based on Foata normal form. 20/826 useless extension candidates. Maximal degree in co-relation 12730. Up to 273 conditions per place. [2021-03-25 12:15:09,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 12:15:09,892 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:09,892 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:09,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 331 [2021-03-25 12:15:09,893 INFO L480 AbstractCegarLoop]: Abstraction has has 497 places, 512 transitions, 14472 flow [2021-03-25 12:15:09,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:09,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:09,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:09,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-25 12:15:09,893 INFO L428 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:09,893 INFO L82 PathProgramCache]: Analyzing trace with hash -347788473, now seen corresponding path program 123 times [2021-03-25 12:15:09,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:09,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053926158] [2021-03-25 12:15:09,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:09,899 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:09,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:09,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:09,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:09,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:09,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:09,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:09,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:09,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:09,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:09,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:09,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:09,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:09,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:09,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:09,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:09,965 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:09,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:09,979 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:09,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:09,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053926158] [2021-03-25 12:15:09,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:09,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:09,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011619625] [2021-03-25 12:15:09,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:09,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:09,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:09,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:09,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2021-03-25 12:15:09,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 512 transitions, 14472 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:09,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:09,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2021-03-25 12:15:09,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:10,566 INFO L129 PetriNetUnfolder]: 348/877 cut-off events. [2021-03-25 12:15:10,566 INFO L130 PetriNetUnfolder]: For 78890/78913 co-relation queries the response was YES. [2021-03-25 12:15:10,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14436 conditions, 877 events. 348/877 cut-off events. For 78890/78913 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 6226 event pairs, 41 based on Foata normal form. 10/885 useless extension candidates. Maximal degree in co-relation 14193. Up to 714 conditions per place. [2021-03-25 12:15:10,587 INFO L132 encePairwiseOnDemand]: 82/95 looper letters, 447 selfloop transitions, 58 changer transitions 3/516 dead transitions. [2021-03-25 12:15:10,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 516 transitions, 15722 flow [2021-03-25 12:15:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 365 transitions. [2021-03-25 12:15:10,600 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3201754385964912 [2021-03-25 12:15:10,600 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 365 transitions. [2021-03-25 12:15:10,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 365 transitions. [2021-03-25 12:15:10,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:10,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 365 transitions. [2021-03-25 12:15:10,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.416666666666668) internal successors, (365), 12 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:10,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:10,601 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:10,601 INFO L185 Difference]: Start difference. First operand has 497 places, 512 transitions, 14472 flow. Second operand 12 states and 365 transitions. [2021-03-25 12:15:10,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 516 transitions, 15722 flow [2021-03-25 12:15:11,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 516 transitions, 15306 flow, removed 107 selfloop flow, removed 11 redundant places. [2021-03-25 12:15:11,224 INFO L241 Difference]: Finished difference. Result has 500 places, 512 transitions, 14284 flow [2021-03-25 12:15:11,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=14056, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14284, PETRI_PLACES=500, PETRI_TRANSITIONS=512} [2021-03-25 12:15:11,224 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2021-03-25 12:15:11,224 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:11,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 512 transitions, 14284 flow [2021-03-25 12:15:11,224 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 512 transitions, 14284 flow [2021-03-25 12:15:11,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 512 transitions, 14284 flow [2021-03-25 12:15:11,408 INFO L129 PetriNetUnfolder]: 308/801 cut-off events. [2021-03-25 12:15:11,408 INFO L130 PetriNetUnfolder]: For 72279/72389 co-relation queries the response was YES. [2021-03-25 12:15:11,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12702 conditions, 801 events. 308/801 cut-off events. For 72279/72389 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5841 event pairs, 18 based on Foata normal form. 21/820 useless extension candidates. Maximal degree in co-relation 12466. Up to 268 conditions per place. [2021-03-25 12:15:11,426 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 12:15:11,455 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:11,456 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:11,456 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 232 [2021-03-25 12:15:11,456 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 512 transitions, 14284 flow [2021-03-25 12:15:11,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:11,456 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:11,456 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:11,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-25 12:15:11,456 INFO L428 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:11,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:11,456 INFO L82 PathProgramCache]: Analyzing trace with hash -252839316, now seen corresponding path program 1 times [2021-03-25 12:15:11,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:11,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977226527] [2021-03-25 12:15:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:11,464 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:11,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:11,469 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:11,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:11,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:11,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:11,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:11,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:11,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:11,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:11,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:11,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:11,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:11,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:11,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:11,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:11,553 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:11,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:11,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977226527] [2021-03-25 12:15:11,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:11,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:11,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164811674] [2021-03-25 12:15:11,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:11,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:11,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:11,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:11,557 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2021-03-25 12:15:11,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 512 transitions, 14284 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:11,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:11,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2021-03-25 12:15:11,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:12,099 INFO L129 PetriNetUnfolder]: 348/874 cut-off events. [2021-03-25 12:15:12,099 INFO L130 PetriNetUnfolder]: For 80343/80366 co-relation queries the response was YES. [2021-03-25 12:15:12,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14300 conditions, 874 events. 348/874 cut-off events. For 80343/80366 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 6205 event pairs, 38 based on Foata normal form. 10/882 useless extension candidates. Maximal degree in co-relation 14058. Up to 675 conditions per place. [2021-03-25 12:15:12,114 INFO L132 encePairwiseOnDemand]: 81/95 looper letters, 393 selfloop transitions, 111 changer transitions 6/518 dead transitions. [2021-03-25 12:15:12,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 518 transitions, 15651 flow [2021-03-25 12:15:12,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:15:12,115 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32456140350877194 [2021-03-25 12:15:12,115 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:15:12,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:15:12,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:12,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:15:12,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:12,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:12,116 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:12,116 INFO L185 Difference]: Start difference. First operand has 499 places, 512 transitions, 14284 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:15:12,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 518 transitions, 15651 flow [2021-03-25 12:15:12,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 518 transitions, 15405 flow, removed 57 selfloop flow, removed 10 redundant places. [2021-03-25 12:15:12,748 INFO L241 Difference]: Finished difference. Result has 504 places, 510 transitions, 14374 flow [2021-03-25 12:15:12,749 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=14042, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14374, PETRI_PLACES=504, PETRI_TRANSITIONS=510} [2021-03-25 12:15:12,749 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 457 predicate places. [2021-03-25 12:15:12,749 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:12,749 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 510 transitions, 14374 flow [2021-03-25 12:15:12,749 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 510 transitions, 14374 flow [2021-03-25 12:15:12,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 501 places, 510 transitions, 14374 flow [2021-03-25 12:15:12,924 INFO L129 PetriNetUnfolder]: 312/818 cut-off events. [2021-03-25 12:15:12,924 INFO L130 PetriNetUnfolder]: For 71433/71475 co-relation queries the response was YES. [2021-03-25 12:15:12,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13040 conditions, 818 events. 312/818 cut-off events. For 71433/71475 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6000 event pairs, 17 based on Foata normal form. 12/829 useless extension candidates. Maximal degree in co-relation 12818. Up to 269 conditions per place. [2021-03-25 12:15:12,946 INFO L142 LiptonReduction]: Number of co-enabled transitions 518 [2021-03-25 12:15:12,975 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:12,976 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:12,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 227 [2021-03-25 12:15:12,977 INFO L480 AbstractCegarLoop]: Abstraction has has 501 places, 510 transitions, 14374 flow [2021-03-25 12:15:12,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:12,977 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:12,977 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:12,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-25 12:15:12,977 INFO L428 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:12,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1972372314, now seen corresponding path program 2 times [2021-03-25 12:15:12,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:12,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005009390] [2021-03-25 12:15:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:12,985 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:12,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:12,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:12,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:12,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:12,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:13,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:13,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:13,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:13,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:13,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:13,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:13,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:13,050 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:15:13,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:13,064 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:13,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:13,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005009390] [2021-03-25 12:15:13,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:13,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:13,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768233998] [2021-03-25 12:15:13,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:13,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:13,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:13,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:13,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2021-03-25 12:15:13,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 510 transitions, 14374 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:13,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:13,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2021-03-25 12:15:13,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:13,558 INFO L129 PetriNetUnfolder]: 346/866 cut-off events. [2021-03-25 12:15:13,559 INFO L130 PetriNetUnfolder]: For 78698/78721 co-relation queries the response was YES. [2021-03-25 12:15:13,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14271 conditions, 866 events. 346/866 cut-off events. For 78698/78721 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6095 event pairs, 43 based on Foata normal form. 8/871 useless extension candidates. Maximal degree in co-relation 14046. Up to 715 conditions per place. [2021-03-25 12:15:13,573 INFO L132 encePairwiseOnDemand]: 83/95 looper letters, 447 selfloop transitions, 54 changer transitions 3/512 dead transitions. [2021-03-25 12:15:13,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 512 transitions, 15422 flow [2021-03-25 12:15:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:13,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 332 transitions. [2021-03-25 12:15:13,575 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31770334928229665 [2021-03-25 12:15:13,575 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 332 transitions. [2021-03-25 12:15:13,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 332 transitions. [2021-03-25 12:15:13,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:13,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 332 transitions. [2021-03-25 12:15:13,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.181818181818183) internal successors, (332), 11 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:13,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:13,576 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 95.0) internal successors, (1140), 12 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:13,576 INFO L185 Difference]: Start difference. First operand has 501 places, 510 transitions, 14374 flow. Second operand 11 states and 332 transitions. [2021-03-25 12:15:13,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 512 transitions, 15422 flow [2021-03-25 12:15:14,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 512 transitions, 15045 flow, removed 14 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:14,145 INFO L241 Difference]: Finished difference. Result has 500 places, 508 transitions, 14085 flow [2021-03-25 12:15:14,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=13997, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14085, PETRI_PLACES=500, PETRI_TRANSITIONS=508} [2021-03-25 12:15:14,146 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2021-03-25 12:15:14,146 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:14,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 508 transitions, 14085 flow [2021-03-25 12:15:14,146 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 508 transitions, 14085 flow [2021-03-25 12:15:14,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 508 transitions, 14085 flow [2021-03-25 12:15:14,304 INFO L129 PetriNetUnfolder]: 306/804 cut-off events. [2021-03-25 12:15:14,304 INFO L130 PetriNetUnfolder]: For 68279/68373 co-relation queries the response was YES. [2021-03-25 12:15:14,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12585 conditions, 804 events. 306/804 cut-off events. For 68279/68373 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 5890 event pairs, 18 based on Foata normal form. 19/822 useless extension candidates. Maximal degree in co-relation 12385. Up to 267 conditions per place. [2021-03-25 12:15:14,324 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 12:15:14,353 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:14,353 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:14,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 207 [2021-03-25 12:15:14,353 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 508 transitions, 14085 flow [2021-03-25 12:15:14,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:14,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:14,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:14,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-25 12:15:14,354 INFO L428 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:14,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:14,354 INFO L82 PathProgramCache]: Analyzing trace with hash -919243279, now seen corresponding path program 124 times [2021-03-25 12:15:14,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:14,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884733059] [2021-03-25 12:15:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:14,360 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:14,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:14,364 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:14,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:14,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:14,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:14,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:14,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:14,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:14,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:14,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:14,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:14,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:14,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:14,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:14,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:14,426 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:14,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:14,440 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:14,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:14,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884733059] [2021-03-25 12:15:14,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:14,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:14,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236884628] [2021-03-25 12:15:14,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:14,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:14,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:14,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:14,443 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2021-03-25 12:15:14,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 508 transitions, 14085 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:14,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:14,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2021-03-25 12:15:14,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:15,026 INFO L129 PetriNetUnfolder]: 345/864 cut-off events. [2021-03-25 12:15:15,026 INFO L130 PetriNetUnfolder]: For 76511/76534 co-relation queries the response was YES. [2021-03-25 12:15:15,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14105 conditions, 864 events. 345/864 cut-off events. For 76511/76534 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6063 event pairs, 39 based on Foata normal form. 10/872 useless extension candidates. Maximal degree in co-relation 13903. Up to 707 conditions per place. [2021-03-25 12:15:15,046 INFO L132 encePairwiseOnDemand]: 82/95 looper letters, 443 selfloop transitions, 53 changer transitions 8/512 dead transitions. [2021-03-25 12:15:15,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 512 transitions, 15260 flow [2021-03-25 12:15:15,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:15,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2021-03-25 12:15:15,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3192982456140351 [2021-03-25 12:15:15,068 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 364 transitions. [2021-03-25 12:15:15,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 364 transitions. [2021-03-25 12:15:15,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:15,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 364 transitions. [2021-03-25 12:15:15,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:15,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:15,069 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:15,069 INFO L185 Difference]: Start difference. First operand has 496 places, 508 transitions, 14085 flow. Second operand 12 states and 364 transitions. [2021-03-25 12:15:15,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 512 transitions, 15260 flow [2021-03-25 12:15:15,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 512 transitions, 15111 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 12:15:15,601 INFO L241 Difference]: Finished difference. Result has 499 places, 503 transitions, 13952 flow [2021-03-25 12:15:15,602 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=13938, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13952, PETRI_PLACES=499, PETRI_TRANSITIONS=503} [2021-03-25 12:15:15,602 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:15:15,602 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:15,602 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 503 transitions, 13952 flow [2021-03-25 12:15:15,602 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 503 transitions, 13952 flow [2021-03-25 12:15:15,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 503 transitions, 13952 flow [2021-03-25 12:15:15,758 INFO L129 PetriNetUnfolder]: 303/792 cut-off events. [2021-03-25 12:15:15,758 INFO L130 PetriNetUnfolder]: For 69407/69518 co-relation queries the response was YES. [2021-03-25 12:15:15,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12478 conditions, 792 events. 303/792 cut-off events. For 69407/69518 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 5714 event pairs, 19 based on Foata normal form. 20/810 useless extension candidates. Maximal degree in co-relation 12279. Up to 267 conditions per place. [2021-03-25 12:15:15,779 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:15:15,807 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:15,808 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:15,808 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206 [2021-03-25 12:15:15,808 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 503 transitions, 13952 flow [2021-03-25 12:15:15,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:15,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:15,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:15,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-25 12:15:15,808 INFO L428 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:15,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:15,808 INFO L82 PathProgramCache]: Analyzing trace with hash 2055499009, now seen corresponding path program 125 times [2021-03-25 12:15:15,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:15,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49507773] [2021-03-25 12:15:15,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:15,814 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:15,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:15,819 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:15,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:15,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:15,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:15,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:15,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:15,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:15,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:15,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:15,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:15,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:15,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:15,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:15,881 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:15,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:15,895 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:15,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:15,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49507773] [2021-03-25 12:15:15,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:15,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:15,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272353730] [2021-03-25 12:15:15,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:15,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:15,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:15,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:15,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2021-03-25 12:15:15,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 503 transitions, 13952 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:15,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:15,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2021-03-25 12:15:15,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:16,504 INFO L129 PetriNetUnfolder]: 343/863 cut-off events. [2021-03-25 12:15:16,504 INFO L130 PetriNetUnfolder]: For 77498/77546 co-relation queries the response was YES. [2021-03-25 12:15:16,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14021 conditions, 863 events. 343/863 cut-off events. For 77498/77546 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6057 event pairs, 42 based on Foata normal form. 11/871 useless extension candidates. Maximal degree in co-relation 13820. Up to 684 conditions per place. [2021-03-25 12:15:16,520 INFO L132 encePairwiseOnDemand]: 82/95 looper letters, 407 selfloop transitions, 90 changer transitions 2/507 dead transitions. [2021-03-25 12:15:16,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 507 transitions, 15118 flow [2021-03-25 12:15:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:15:16,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32456140350877194 [2021-03-25 12:15:16,521 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:15:16,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:15:16,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:16,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:15:16,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:16,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:16,522 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:16,522 INFO L185 Difference]: Start difference. First operand has 495 places, 503 transitions, 13952 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:15:16,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 507 transitions, 15118 flow [2021-03-25 12:15:17,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 507 transitions, 14990 flow, removed 12 selfloop flow, removed 12 redundant places. [2021-03-25 12:15:17,037 INFO L241 Difference]: Finished difference. Result has 497 places, 504 transitions, 14093 flow [2021-03-25 12:15:17,037 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=13830, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14093, PETRI_PLACES=497, PETRI_TRANSITIONS=504} [2021-03-25 12:15:17,038 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:17,038 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:17,038 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 504 transitions, 14093 flow [2021-03-25 12:15:17,038 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 504 transitions, 14093 flow [2021-03-25 12:15:17,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 504 transitions, 14093 flow [2021-03-25 12:15:17,202 INFO L129 PetriNetUnfolder]: 303/794 cut-off events. [2021-03-25 12:15:17,202 INFO L130 PetriNetUnfolder]: For 67566/67676 co-relation queries the response was YES. [2021-03-25 12:15:17,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12519 conditions, 794 events. 303/794 cut-off events. For 67566/67676 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 5758 event pairs, 20 based on Foata normal form. 21/814 useless extension candidates. Maximal degree in co-relation 12287. Up to 267 conditions per place. [2021-03-25 12:15:17,223 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:15:17,251 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:17,252 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:17,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-03-25 12:15:17,252 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 504 transitions, 14093 flow [2021-03-25 12:15:17,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:17,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:17,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:17,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-25 12:15:17,252 INFO L428 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:17,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:17,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1798382287, now seen corresponding path program 126 times [2021-03-25 12:15:17,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:17,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278357424] [2021-03-25 12:15:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:17,259 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:17,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:17,265 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:17,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:17,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:17,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:17,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:17,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:17,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:17,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:17,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:17,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:17,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:17,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:17,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:17,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:17,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:17,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:17,351 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:17,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:17,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278357424] [2021-03-25 12:15:17,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:17,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:17,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868503940] [2021-03-25 12:15:17,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:17,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:17,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:17,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:17,354 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 95 [2021-03-25 12:15:17,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 504 transitions, 14093 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:17,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:17,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 95 [2021-03-25 12:15:17,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:17,954 INFO L129 PetriNetUnfolder]: 342/861 cut-off events. [2021-03-25 12:15:17,954 INFO L130 PetriNetUnfolder]: For 74734/74757 co-relation queries the response was YES. [2021-03-25 12:15:17,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14069 conditions, 861 events. 342/861 cut-off events. For 74734/74757 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6055 event pairs, 38 based on Foata normal form. 10/869 useless extension candidates. Maximal degree in co-relation 13831. Up to 703 conditions per place. [2021-03-25 12:15:17,967 INFO L132 encePairwiseOnDemand]: 82/95 looper letters, 438 selfloop transitions, 59 changer transitions 3/508 dead transitions. [2021-03-25 12:15:17,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 508 transitions, 15317 flow [2021-03-25 12:15:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:17,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:17,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 365 transitions. [2021-03-25 12:15:17,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3201754385964912 [2021-03-25 12:15:17,968 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 365 transitions. [2021-03-25 12:15:17,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 365 transitions. [2021-03-25 12:15:17,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:17,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 365 transitions. [2021-03-25 12:15:17,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.416666666666668) internal successors, (365), 12 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:17,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:17,969 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 95.0) internal successors, (1235), 13 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:17,969 INFO L185 Difference]: Start difference. First operand has 496 places, 504 transitions, 14093 flow. Second operand 12 states and 365 transitions. [2021-03-25 12:15:17,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 508 transitions, 15317 flow [2021-03-25 12:15:18,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 508 transitions, 15081 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-25 12:15:18,480 INFO L241 Difference]: Finished difference. Result has 499 places, 504 transitions, 14102 flow [2021-03-25 12:15:18,480 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=13861, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14102, PETRI_PLACES=499, PETRI_TRANSITIONS=504} [2021-03-25 12:15:18,480 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:15:18,480 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:18,480 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 504 transitions, 14102 flow [2021-03-25 12:15:18,480 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 504 transitions, 14102 flow [2021-03-25 12:15:18,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 504 transitions, 14102 flow [2021-03-25 12:15:18,639 INFO L129 PetriNetUnfolder]: 301/794 cut-off events. [2021-03-25 12:15:18,639 INFO L130 PetriNetUnfolder]: For 68471/68565 co-relation queries the response was YES. [2021-03-25 12:15:18,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12519 conditions, 794 events. 301/794 cut-off events. For 68471/68565 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 5797 event pairs, 19 based on Foata normal form. 19/812 useless extension candidates. Maximal degree in co-relation 12286. Up to 268 conditions per place. [2021-03-25 12:15:18,659 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:15:18,753 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:18,753 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:18,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 273 [2021-03-25 12:15:18,754 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 504 transitions, 14116 flow [2021-03-25 12:15:18,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:18,754 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:18,754 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:18,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-25 12:15:18,754 INFO L428 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:18,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:18,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1383069813, now seen corresponding path program 127 times [2021-03-25 12:15:18,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:18,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009539327] [2021-03-25 12:15:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:18,767 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:18,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:18,772 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:18,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:18,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:18,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:18,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:18,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:18,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:18,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:18,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:18,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:18,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:18,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:18,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:15:18,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:18,838 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:18,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:18,855 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:18,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:18,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009539327] [2021-03-25 12:15:18,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:18,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:18,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254679698] [2021-03-25 12:15:18,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:18,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:18,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:18,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:18,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 96 [2021-03-25 12:15:18,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 504 transitions, 14116 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:18,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:18,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 96 [2021-03-25 12:15:18,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:19,433 INFO L129 PetriNetUnfolder]: 340/860 cut-off events. [2021-03-25 12:15:19,433 INFO L130 PetriNetUnfolder]: For 76171/76194 co-relation queries the response was YES. [2021-03-25 12:15:19,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14028 conditions, 860 events. 340/860 cut-off events. For 76171/76194 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6001 event pairs, 42 based on Foata normal form. 10/868 useless extension candidates. Maximal degree in co-relation 13789. Up to 679 conditions per place. [2021-03-25 12:15:19,450 INFO L132 encePairwiseOnDemand]: 83/96 looper letters, 404 selfloop transitions, 91 changer transitions 3/506 dead transitions. [2021-03-25 12:15:19,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 506 transitions, 15218 flow [2021-03-25 12:15:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:15:19,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32386363636363635 [2021-03-25 12:15:19,451 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:15:19,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:15:19,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:19,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:15:19,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:19,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 96.0) internal successors, (1152), 12 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:19,452 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 96.0) internal successors, (1152), 12 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:19,452 INFO L185 Difference]: Start difference. First operand has 498 places, 504 transitions, 14116 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:15:19,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 506 transitions, 15218 flow [2021-03-25 12:15:19,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 506 transitions, 14947 flow, removed 68 selfloop flow, removed 8 redundant places. [2021-03-25 12:15:20,002 INFO L241 Difference]: Finished difference. Result has 502 places, 502 transitions, 14090 flow [2021-03-25 12:15:20,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=13847, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14090, PETRI_PLACES=502, PETRI_TRANSITIONS=502} [2021-03-25 12:15:20,002 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 455 predicate places. [2021-03-25 12:15:20,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:20,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 502 transitions, 14090 flow [2021-03-25 12:15:20,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 502 transitions, 14090 flow [2021-03-25 12:15:20,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 500 places, 502 transitions, 14090 flow [2021-03-25 12:15:20,232 INFO L129 PetriNetUnfolder]: 300/795 cut-off events. [2021-03-25 12:15:20,233 INFO L130 PetriNetUnfolder]: For 68709/68805 co-relation queries the response was YES. [2021-03-25 12:15:20,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12534 conditions, 795 events. 300/795 cut-off events. For 68709/68805 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 5840 event pairs, 19 based on Foata normal form. 21/814 useless extension candidates. Maximal degree in co-relation 12301. Up to 265 conditions per place. [2021-03-25 12:15:20,258 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:15:20,294 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:20,294 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:20,294 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 292 [2021-03-25 12:15:20,294 INFO L480 AbstractCegarLoop]: Abstraction has has 500 places, 502 transitions, 14090 flow [2021-03-25 12:15:20,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:20,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:20,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:20,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-03-25 12:15:20,295 INFO L428 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:20,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:20,296 INFO L82 PathProgramCache]: Analyzing trace with hash -681521146, now seen corresponding path program 1 times [2021-03-25 12:15:20,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:20,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221467009] [2021-03-25 12:15:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:20,319 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:20,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:20,324 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:20,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:20,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:20,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:20,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:20,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:20,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:20,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:20,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:20,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:20,369 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:20,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:20,383 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:20,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:20,387 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:20,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:20,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221467009] [2021-03-25 12:15:20,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:20,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:15:20,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477150583] [2021-03-25 12:15:20,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:15:20,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:20,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:15:20,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:15:20,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 96 [2021-03-25 12:15:20,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 502 transitions, 14090 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:20,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:20,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 96 [2021-03-25 12:15:20,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:20,868 INFO L129 PetriNetUnfolder]: 340/862 cut-off events. [2021-03-25 12:15:20,868 INFO L130 PetriNetUnfolder]: For 74434/74457 co-relation queries the response was YES. [2021-03-25 12:15:20,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14046 conditions, 862 events. 340/862 cut-off events. For 74434/74457 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 6091 event pairs, 41 based on Foata normal form. 8/867 useless extension candidates. Maximal degree in co-relation 13807. Up to 721 conditions per place. [2021-03-25 12:15:20,883 INFO L132 encePairwiseOnDemand]: 84/96 looper letters, 463 selfloop transitions, 33 changer transitions 2/506 dead transitions. [2021-03-25 12:15:20,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 506 transitions, 15214 flow [2021-03-25 12:15:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2021-03-25 12:15:20,885 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3145833333333333 [2021-03-25 12:15:20,885 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 302 transitions. [2021-03-25 12:15:20,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 302 transitions. [2021-03-25 12:15:20,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:20,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 302 transitions. [2021-03-25 12:15:20,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.2) internal successors, (302), 10 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:20,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 96.0) internal successors, (1056), 11 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:20,885 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 96.0) internal successors, (1056), 11 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:20,886 INFO L185 Difference]: Start difference. First operand has 500 places, 502 transitions, 14090 flow. Second operand 10 states and 302 transitions. [2021-03-25 12:15:20,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 506 transitions, 15214 flow [2021-03-25 12:15:21,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 506 transitions, 14935 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:15:21,456 INFO L241 Difference]: Finished difference. Result has 500 places, 503 transitions, 13928 flow [2021-03-25 12:15:21,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=13811, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13928, PETRI_PLACES=500, PETRI_TRANSITIONS=503} [2021-03-25 12:15:21,457 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2021-03-25 12:15:21,457 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:21,457 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 503 transitions, 13928 flow [2021-03-25 12:15:21,457 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 503 transitions, 13928 flow [2021-03-25 12:15:21,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 503 transitions, 13928 flow [2021-03-25 12:15:21,615 INFO L129 PetriNetUnfolder]: 298/795 cut-off events. [2021-03-25 12:15:21,615 INFO L130 PetriNetUnfolder]: For 67272/67382 co-relation queries the response was YES. [2021-03-25 12:15:21,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12372 conditions, 795 events. 298/795 cut-off events. For 67272/67382 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 5852 event pairs, 17 based on Foata normal form. 21/814 useless extension candidates. Maximal degree in co-relation 12139. Up to 264 conditions per place. [2021-03-25 12:15:21,637 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:15:21,665 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:21,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:21,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 208 [2021-03-25 12:15:21,665 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 503 transitions, 13928 flow [2021-03-25 12:15:21,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:21,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:21,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:21,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-03-25 12:15:21,665 INFO L428 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:21,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1740886758, now seen corresponding path program 2 times [2021-03-25 12:15:21,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:21,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390256501] [2021-03-25 12:15:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:21,673 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:21,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:21,678 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:21,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:21,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:21,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:21,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:21,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:21,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:21,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:21,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:21,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:21,716 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:21,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:21,728 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:15:21,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:21,741 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:21,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:21,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390256501] [2021-03-25 12:15:21,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:21,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:21,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539147640] [2021-03-25 12:15:21,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:21,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:21,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:21,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:21,745 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 96 [2021-03-25 12:15:21,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 503 transitions, 13928 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:21,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:21,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 96 [2021-03-25 12:15:21,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:22,226 INFO L129 PetriNetUnfolder]: 339/860 cut-off events. [2021-03-25 12:15:22,226 INFO L130 PetriNetUnfolder]: For 71925/71948 co-relation queries the response was YES. [2021-03-25 12:15:22,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13850 conditions, 860 events. 339/860 cut-off events. For 71925/71948 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6118 event pairs, 44 based on Foata normal form. 8/865 useless extension candidates. Maximal degree in co-relation 13611. Up to 718 conditions per place. [2021-03-25 12:15:22,241 INFO L132 encePairwiseOnDemand]: 84/96 looper letters, 461 selfloop transitions, 33 changer transitions 3/505 dead transitions. [2021-03-25 12:15:22,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 505 transitions, 14962 flow [2021-03-25 12:15:22,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 328 transitions. [2021-03-25 12:15:22,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3106060606060606 [2021-03-25 12:15:22,243 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 328 transitions. [2021-03-25 12:15:22,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 328 transitions. [2021-03-25 12:15:22,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:22,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 328 transitions. [2021-03-25 12:15:22,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.818181818181817) internal successors, (328), 11 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:22,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 96.0) internal successors, (1152), 12 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:22,243 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 96.0) internal successors, (1152), 12 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:22,243 INFO L185 Difference]: Start difference. First operand has 499 places, 503 transitions, 13928 flow. Second operand 11 states and 328 transitions. [2021-03-25 12:15:22,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 505 transitions, 14962 flow [2021-03-25 12:15:22,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 505 transitions, 14858 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-03-25 12:15:22,733 INFO L241 Difference]: Finished difference. Result has 502 places, 501 transitions, 13870 flow [2021-03-25 12:15:22,734 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=13824, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13870, PETRI_PLACES=502, PETRI_TRANSITIONS=501} [2021-03-25 12:15:22,734 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 455 predicate places. [2021-03-25 12:15:22,734 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:22,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 501 transitions, 13870 flow [2021-03-25 12:15:22,734 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 501 transitions, 13870 flow [2021-03-25 12:15:22,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 501 transitions, 13870 flow [2021-03-25 12:15:22,881 INFO L129 PetriNetUnfolder]: 297/793 cut-off events. [2021-03-25 12:15:22,881 INFO L130 PetriNetUnfolder]: For 66733/66829 co-relation queries the response was YES. [2021-03-25 12:15:22,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12321 conditions, 793 events. 297/793 cut-off events. For 66733/66829 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 5828 event pairs, 18 based on Foata normal form. 21/812 useless extension candidates. Maximal degree in co-relation 12122. Up to 263 conditions per place. [2021-03-25 12:15:22,898 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:15:22,925 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:22,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:22,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 12:15:22,925 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 501 transitions, 13870 flow [2021-03-25 12:15:22,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:22,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:22,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:22,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-03-25 12:15:22,926 INFO L428 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:22,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1166035381, now seen corresponding path program 128 times [2021-03-25 12:15:22,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:22,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863472338] [2021-03-25 12:15:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:22,932 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:22,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:22,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:22,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:22,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:22,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:22,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:22,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:22,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:22,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:22,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:22,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:22,993 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:15:22,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:22,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:22,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:23,009 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:23,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863472338] [2021-03-25 12:15:23,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:23,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:23,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401579839] [2021-03-25 12:15:23,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:23,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:23,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:23,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:23,012 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 96 [2021-03-25 12:15:23,012 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 501 transitions, 13870 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:23,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:23,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 96 [2021-03-25 12:15:23,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:23,583 INFO L129 PetriNetUnfolder]: 339/859 cut-off events. [2021-03-25 12:15:23,583 INFO L130 PetriNetUnfolder]: For 73507/73536 co-relation queries the response was YES. [2021-03-25 12:15:23,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13887 conditions, 859 events. 339/859 cut-off events. For 73507/73536 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6091 event pairs, 33 based on Foata normal form. 16/873 useless extension candidates. Maximal degree in co-relation 13686. Up to 687 conditions per place. [2021-03-25 12:15:23,598 INFO L132 encePairwiseOnDemand]: 84/96 looper letters, 426 selfloop transitions, 73 changer transitions 3/510 dead transitions. [2021-03-25 12:15:23,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 510 transitions, 15245 flow [2021-03-25 12:15:23,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:15:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:15:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 459 transitions. [2021-03-25 12:15:23,599 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31875 [2021-03-25 12:15:23,599 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 459 transitions. [2021-03-25 12:15:23,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 459 transitions. [2021-03-25 12:15:23,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:23,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 459 transitions. [2021-03-25 12:15:23,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.6) internal successors, (459), 15 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:23,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 96.0) internal successors, (1536), 16 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:23,600 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 96.0) internal successors, (1536), 16 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:23,600 INFO L185 Difference]: Start difference. First operand has 499 places, 501 transitions, 13870 flow. Second operand 15 states and 459 transitions. [2021-03-25 12:15:23,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 510 transitions, 15245 flow [2021-03-25 12:15:24,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 510 transitions, 15183 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 12:15:24,104 INFO L241 Difference]: Finished difference. Result has 507 places, 503 transitions, 14101 flow [2021-03-25 12:15:24,104 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=13808, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14101, PETRI_PLACES=507, PETRI_TRANSITIONS=503} [2021-03-25 12:15:24,104 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 460 predicate places. [2021-03-25 12:15:24,105 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:24,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 503 transitions, 14101 flow [2021-03-25 12:15:24,105 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 503 transitions, 14101 flow [2021-03-25 12:15:24,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 503 transitions, 14101 flow [2021-03-25 12:15:24,258 INFO L129 PetriNetUnfolder]: 298/795 cut-off events. [2021-03-25 12:15:24,258 INFO L130 PetriNetUnfolder]: For 68959/69098 co-relation queries the response was YES. [2021-03-25 12:15:24,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12495 conditions, 795 events. 298/795 cut-off events. For 68959/69098 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 5790 event pairs, 18 based on Foata normal form. 21/813 useless extension candidates. Maximal degree in co-relation 12261. Up to 265 conditions per place. [2021-03-25 12:15:24,277 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:15:24,305 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:24,305 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:24,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-25 12:15:24,305 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 503 transitions, 14101 flow [2021-03-25 12:15:24,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:24,305 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:24,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:24,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-03-25 12:15:24,305 INFO L428 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:24,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1336106495, now seen corresponding path program 129 times [2021-03-25 12:15:24,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:24,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713366262] [2021-03-25 12:15:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:24,312 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:24,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:24,316 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:24,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:24,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:24,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:24,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:24,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:24,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:24,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:24,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:24,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:24,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:24,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:24,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:15:24,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:24,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:24,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:24,405 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:24,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:24,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:24,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713366262] [2021-03-25 12:15:24,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:24,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:24,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462180337] [2021-03-25 12:15:24,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:24,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:24,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:24,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:24,408 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 96 [2021-03-25 12:15:24,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 503 transitions, 14101 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:24,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:24,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 96 [2021-03-25 12:15:24,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:25,028 INFO L129 PetriNetUnfolder]: 337/868 cut-off events. [2021-03-25 12:15:25,028 INFO L130 PetriNetUnfolder]: For 75717/75740 co-relation queries the response was YES. [2021-03-25 12:15:25,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14082 conditions, 868 events. 337/868 cut-off events. For 75717/75740 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6163 event pairs, 39 based on Foata normal form. 11/877 useless extension candidates. Maximal degree in co-relation 13842. Up to 682 conditions per place. [2021-03-25 12:15:25,044 INFO L132 encePairwiseOnDemand]: 84/96 looper letters, 425 selfloop transitions, 71 changer transitions 9/513 dead transitions. [2021-03-25 12:15:25,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 513 transitions, 15527 flow [2021-03-25 12:15:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:15:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:15:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 434 transitions. [2021-03-25 12:15:25,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3229166666666667 [2021-03-25 12:15:25,045 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 434 transitions. [2021-03-25 12:15:25,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 434 transitions. [2021-03-25 12:15:25,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:25,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 434 transitions. [2021-03-25 12:15:25,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 31.0) internal successors, (434), 14 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:25,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 96.0) internal successors, (1440), 15 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:25,046 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 96.0) internal successors, (1440), 15 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:25,046 INFO L185 Difference]: Start difference. First operand has 507 places, 503 transitions, 14101 flow. Second operand 14 states and 434 transitions. [2021-03-25 12:15:25,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 513 transitions, 15527 flow [2021-03-25 12:15:25,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 513 transitions, 15165 flow, removed 80 selfloop flow, removed 15 redundant places. [2021-03-25 12:15:25,582 INFO L241 Difference]: Finished difference. Result has 509 places, 500 transitions, 13923 flow [2021-03-25 12:15:25,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=13743, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13923, PETRI_PLACES=509, PETRI_TRANSITIONS=500} [2021-03-25 12:15:25,582 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:15:25,582 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:25,582 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 500 transitions, 13923 flow [2021-03-25 12:15:25,582 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 500 transitions, 13923 flow [2021-03-25 12:15:25,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 500 transitions, 13923 flow [2021-03-25 12:15:25,752 INFO L129 PetriNetUnfolder]: 301/805 cut-off events. [2021-03-25 12:15:25,752 INFO L130 PetriNetUnfolder]: For 70269/70298 co-relation queries the response was YES. [2021-03-25 12:15:25,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12698 conditions, 805 events. 301/805 cut-off events. For 70269/70298 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 5927 event pairs, 19 based on Foata normal form. 10/814 useless extension candidates. Maximal degree in co-relation 12462. Up to 262 conditions per place. [2021-03-25 12:15:25,777 INFO L142 LiptonReduction]: Number of co-enabled transitions 512 [2021-03-25 12:15:25,871 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:25,871 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:25,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 289 [2021-03-25 12:15:25,871 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 500 transitions, 13954 flow [2021-03-25 12:15:25,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:25,872 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:25,872 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:25,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-03-25 12:15:25,872 INFO L428 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:25,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:25,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1756518859, now seen corresponding path program 130 times [2021-03-25 12:15:25,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:25,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455879007] [2021-03-25 12:15:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:25,878 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:25,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:25,882 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:25,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:25,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:25,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:25,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:25,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:25,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:25,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:25,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:25,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:25,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:25,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:25,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:25,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:25,944 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:25,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:25,947 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:25,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455879007] [2021-03-25 12:15:25,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:25,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:25,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606513723] [2021-03-25 12:15:25,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:25,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:25,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:25,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:25,950 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:25,950 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 500 transitions, 13954 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:25,950 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:25,950 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:25,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:26,530 INFO L129 PetriNetUnfolder]: 334/846 cut-off events. [2021-03-25 12:15:26,530 INFO L130 PetriNetUnfolder]: For 76043/76066 co-relation queries the response was YES. [2021-03-25 12:15:26,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13981 conditions, 846 events. 334/846 cut-off events. For 76043/76066 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5904 event pairs, 42 based on Foata normal form. 8/851 useless extension candidates. Maximal degree in co-relation 13739. Up to 684 conditions per place. [2021-03-25 12:15:26,545 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 415 selfloop transitions, 79 changer transitions 5/507 dead transitions. [2021-03-25 12:15:26,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 507 transitions, 15339 flow [2021-03-25 12:15:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:15:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:15:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 428 transitions. [2021-03-25 12:15:26,546 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31516936671575846 [2021-03-25 12:15:26,546 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 428 transitions. [2021-03-25 12:15:26,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 428 transitions. [2021-03-25 12:15:26,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:26,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 428 transitions. [2021-03-25 12:15:26,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.571428571428573) internal successors, (428), 14 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:26,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 97.0) internal successors, (1455), 15 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:26,548 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 97.0) internal successors, (1455), 15 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:26,548 INFO L185 Difference]: Start difference. First operand has 509 places, 500 transitions, 13954 flow. Second operand 14 states and 428 transitions. [2021-03-25 12:15:26,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 507 transitions, 15339 flow [2021-03-25 12:15:27,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 507 transitions, 14825 flow, removed 69 selfloop flow, removed 18 redundant places. [2021-03-25 12:15:27,090 INFO L241 Difference]: Finished difference. Result has 508 places, 501 transitions, 13763 flow [2021-03-25 12:15:27,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13446, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13763, PETRI_PLACES=508, PETRI_TRANSITIONS=501} [2021-03-25 12:15:27,090 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 461 predicate places. [2021-03-25 12:15:27,091 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:27,091 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 501 transitions, 13763 flow [2021-03-25 12:15:27,091 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 501 transitions, 13763 flow [2021-03-25 12:15:27,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 501 transitions, 13763 flow [2021-03-25 12:15:27,245 INFO L129 PetriNetUnfolder]: 304/799 cut-off events. [2021-03-25 12:15:27,245 INFO L130 PetriNetUnfolder]: For 73268/73272 co-relation queries the response was YES. [2021-03-25 12:15:27,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12700 conditions, 799 events. 304/799 cut-off events. For 73268/73272 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 5758 event pairs, 15 based on Foata normal form. 4/801 useless extension candidates. Maximal degree in co-relation 12464. Up to 260 conditions per place. [2021-03-25 12:15:27,265 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 12:15:27,293 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:27,293 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:27,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 202 [2021-03-25 12:15:27,293 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 501 transitions, 13763 flow [2021-03-25 12:15:27,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:27,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:27,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:27,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-03-25 12:15:27,293 INFO L428 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:27,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:27,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1959877875, now seen corresponding path program 1 times [2021-03-25 12:15:27,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:27,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120627840] [2021-03-25 12:15:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:27,309 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:27,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:27,313 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:27,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:27,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:27,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:27,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:27,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:27,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:27,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:27,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:27,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:15:27,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:27,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:27,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:27,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:27,381 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:15:27,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:15:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:27,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120627840] [2021-03-25 12:15:27,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:27,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:27,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646771372] [2021-03-25 12:15:27,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:27,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:27,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:27,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:27,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:27,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 501 transitions, 13763 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:27,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:27,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:27,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:27,947 INFO L129 PetriNetUnfolder]: 333/839 cut-off events. [2021-03-25 12:15:27,947 INFO L130 PetriNetUnfolder]: For 74721/74736 co-relation queries the response was YES. [2021-03-25 12:15:27,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13712 conditions, 839 events. 333/839 cut-off events. For 74721/74736 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 5871 event pairs, 41 based on Foata normal form. 8/845 useless extension candidates. Maximal degree in co-relation 13470. Up to 667 conditions per place. [2021-03-25 12:15:27,962 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 403 selfloop transitions, 86 changer transitions 9/506 dead transitions. [2021-03-25 12:15:27,962 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 506 transitions, 14939 flow [2021-03-25 12:15:27,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:15:27,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:15:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 400 transitions. [2021-03-25 12:15:27,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.317208564631245 [2021-03-25 12:15:27,988 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 400 transitions. [2021-03-25 12:15:27,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 400 transitions. [2021-03-25 12:15:27,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:27,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 400 transitions. [2021-03-25 12:15:27,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.76923076923077) internal successors, (400), 13 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:27,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:27,989 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:27,989 INFO L185 Difference]: Start difference. First operand has 508 places, 501 transitions, 13763 flow. Second operand 13 states and 400 transitions. [2021-03-25 12:15:27,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 506 transitions, 14939 flow [2021-03-25 12:15:28,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 506 transitions, 14695 flow, removed 59 selfloop flow, removed 10 redundant places. [2021-03-25 12:15:28,526 INFO L241 Difference]: Finished difference. Result has 514 places, 496 transitions, 13562 flow [2021-03-25 12:15:28,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13519, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13562, PETRI_PLACES=514, PETRI_TRANSITIONS=496} [2021-03-25 12:15:28,527 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 467 predicate places. [2021-03-25 12:15:28,527 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:28,527 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 496 transitions, 13562 flow [2021-03-25 12:15:28,527 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 496 transitions, 13562 flow [2021-03-25 12:15:28,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 496 transitions, 13562 flow [2021-03-25 12:15:28,696 INFO L129 PetriNetUnfolder]: 290/767 cut-off events. [2021-03-25 12:15:28,696 INFO L130 PetriNetUnfolder]: For 70026/70141 co-relation queries the response was YES. [2021-03-25 12:15:28,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12087 conditions, 767 events. 290/767 cut-off events. For 70026/70141 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5529 event pairs, 22 based on Foata normal form. 19/783 useless extension candidates. Maximal degree in co-relation 11882. Up to 255 conditions per place. [2021-03-25 12:15:28,716 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:15:28,743 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:28,743 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:28,743 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 216 [2021-03-25 12:15:28,743 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 496 transitions, 13562 flow [2021-03-25 12:15:28,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:28,744 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:28,744 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:28,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-03-25 12:15:28,744 INFO L428 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:28,744 INFO L82 PathProgramCache]: Analyzing trace with hash -651829829, now seen corresponding path program 2 times [2021-03-25 12:15:28,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:28,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292359130] [2021-03-25 12:15:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:28,751 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:28,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:28,756 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:28,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:28,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:28,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:28,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:28,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:28,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:28,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:15:28,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:28,813 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:15:28,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:15:28,820 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:15:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:15:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:28,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292359130] [2021-03-25 12:15:28,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:28,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:28,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863610041] [2021-03-25 12:15:28,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:28,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:28,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:28,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:28,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:28,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 496 transitions, 13562 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:28,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:28,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:28,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:29,295 INFO L129 PetriNetUnfolder]: 329/843 cut-off events. [2021-03-25 12:15:29,295 INFO L130 PetriNetUnfolder]: For 74809/74832 co-relation queries the response was YES. [2021-03-25 12:15:29,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13641 conditions, 843 events. 329/843 cut-off events. For 74809/74832 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5961 event pairs, 41 based on Foata normal form. 8/848 useless extension candidates. Maximal degree in co-relation 13431. Up to 692 conditions per place. [2021-03-25 12:15:29,310 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 442 selfloop transitions, 50 changer transitions 1/501 dead transitions. [2021-03-25 12:15:29,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 501 transitions, 14715 flow [2021-03-25 12:15:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 337 transitions. [2021-03-25 12:15:29,311 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3158388003748828 [2021-03-25 12:15:29,311 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 337 transitions. [2021-03-25 12:15:29,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 337 transitions. [2021-03-25 12:15:29,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:29,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 337 transitions. [2021-03-25 12:15:29,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 11 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:29,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:29,312 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:29,312 INFO L185 Difference]: Start difference. First operand has 509 places, 496 transitions, 13562 flow. Second operand 11 states and 337 transitions. [2021-03-25 12:15:29,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 501 transitions, 14715 flow [2021-03-25 12:15:29,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 501 transitions, 14503 flow, removed 20 selfloop flow, removed 14 redundant places. [2021-03-25 12:15:29,814 INFO L241 Difference]: Finished difference. Result has 508 places, 497 transitions, 13521 flow [2021-03-25 12:15:29,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13354, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13521, PETRI_PLACES=508, PETRI_TRANSITIONS=497} [2021-03-25 12:15:29,815 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 461 predicate places. [2021-03-25 12:15:29,815 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:29,815 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 497 transitions, 13521 flow [2021-03-25 12:15:29,815 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 497 transitions, 13521 flow [2021-03-25 12:15:29,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 497 transitions, 13521 flow [2021-03-25 12:15:29,986 INFO L129 PetriNetUnfolder]: 289/778 cut-off events. [2021-03-25 12:15:29,986 INFO L130 PetriNetUnfolder]: For 71159/71290 co-relation queries the response was YES. [2021-03-25 12:15:29,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12096 conditions, 778 events. 289/778 cut-off events. For 71159/71290 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 5658 event pairs, 15 based on Foata normal form. 21/797 useless extension candidates. Maximal degree in co-relation 11893. Up to 258 conditions per place. [2021-03-25 12:15:30,006 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:15:30,032 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:30,032 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:30,032 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 217 [2021-03-25 12:15:30,032 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 497 transitions, 13521 flow [2021-03-25 12:15:30,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:30,033 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:30,033 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:30,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-03-25 12:15:30,033 INFO L428 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:30,033 INFO L82 PathProgramCache]: Analyzing trace with hash 207639347, now seen corresponding path program 3 times [2021-03-25 12:15:30,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:30,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374263236] [2021-03-25 12:15:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:30,041 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:30,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:30,046 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:30,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:30,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:30,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:30,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:30,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:30,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:30,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:30,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:15:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:30,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:30,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:30,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:15:30,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:15:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:30,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374263236] [2021-03-25 12:15:30,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:30,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:30,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211569336] [2021-03-25 12:15:30,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:30,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:30,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:30,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:30,118 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:30,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 497 transitions, 13521 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:30,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:30,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:30,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:30,636 INFO L129 PetriNetUnfolder]: 329/838 cut-off events. [2021-03-25 12:15:30,636 INFO L130 PetriNetUnfolder]: For 72428/72443 co-relation queries the response was YES. [2021-03-25 12:15:30,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13522 conditions, 838 events. 329/838 cut-off events. For 72428/72443 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 5936 event pairs, 31 based on Foata normal form. 10/847 useless extension candidates. Maximal degree in co-relation 13319. Up to 677 conditions per place. [2021-03-25 12:15:30,650 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 432 selfloop transitions, 58 changer transitions 5/503 dead transitions. [2021-03-25 12:15:30,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 503 transitions, 14722 flow [2021-03-25 12:15:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:15:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:15:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2021-03-25 12:15:30,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3156225218080888 [2021-03-25 12:15:30,651 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 398 transitions. [2021-03-25 12:15:30,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 398 transitions. [2021-03-25 12:15:30,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:30,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 398 transitions. [2021-03-25 12:15:30,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.615384615384617) internal successors, (398), 13 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:30,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:30,652 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:30,652 INFO L185 Difference]: Start difference. First operand has 507 places, 497 transitions, 13521 flow. Second operand 13 states and 398 transitions. [2021-03-25 12:15:30,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 503 transitions, 14722 flow [2021-03-25 12:15:31,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 503 transitions, 14528 flow, removed 39 selfloop flow, removed 10 redundant places. [2021-03-25 12:15:31,179 INFO L241 Difference]: Finished difference. Result has 511 places, 494 transitions, 13389 flow [2021-03-25 12:15:31,179 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13366, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13389, PETRI_PLACES=511, PETRI_TRANSITIONS=494} [2021-03-25 12:15:31,179 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:15:31,180 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:31,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 494 transitions, 13389 flow [2021-03-25 12:15:31,180 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 494 transitions, 13389 flow [2021-03-25 12:15:31,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 494 transitions, 13389 flow [2021-03-25 12:15:31,335 INFO L129 PetriNetUnfolder]: 289/771 cut-off events. [2021-03-25 12:15:31,335 INFO L130 PetriNetUnfolder]: For 66847/66954 co-relation queries the response was YES. [2021-03-25 12:15:31,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11982 conditions, 771 events. 289/771 cut-off events. For 66847/66954 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5635 event pairs, 19 based on Foata normal form. 17/785 useless extension candidates. Maximal degree in co-relation 11780. Up to 254 conditions per place. [2021-03-25 12:15:31,354 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:31,381 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:31,381 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:31,381 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 12:15:31,382 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 494 transitions, 13389 flow [2021-03-25 12:15:31,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:31,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:31,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:31,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-03-25 12:15:31,382 INFO L428 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:31,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:31,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1484044203, now seen corresponding path program 131 times [2021-03-25 12:15:31,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:31,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383047555] [2021-03-25 12:15:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:31,393 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:31,398 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:31,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:31,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:31,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:31,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:31,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:31,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:31,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:31,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:31,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:31,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:31,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:31,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:31,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:31,483 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:31,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:31,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383047555] [2021-03-25 12:15:31,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:31,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:31,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744326575] [2021-03-25 12:15:31,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:31,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:31,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:31,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:31,486 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:31,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 494 transitions, 13389 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:31,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:31,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:31,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:32,033 INFO L129 PetriNetUnfolder]: 329/838 cut-off events. [2021-03-25 12:15:32,033 INFO L130 PetriNetUnfolder]: For 73648/73671 co-relation queries the response was YES. [2021-03-25 12:15:32,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13505 conditions, 838 events. 329/838 cut-off events. For 73648/73671 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 5849 event pairs, 41 based on Foata normal form. 10/846 useless extension candidates. Maximal degree in co-relation 13301. Up to 664 conditions per place. [2021-03-25 12:15:32,049 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 401 selfloop transitions, 85 changer transitions 5/499 dead transitions. [2021-03-25 12:15:32,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 499 transitions, 14545 flow [2021-03-25 12:15:32,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:15:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:15:32,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 395 transitions. [2021-03-25 12:15:32,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3132434575733545 [2021-03-25 12:15:32,050 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 395 transitions. [2021-03-25 12:15:32,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 395 transitions. [2021-03-25 12:15:32,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:32,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 395 transitions. [2021-03-25 12:15:32,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.384615384615383) internal successors, (395), 13 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:32,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:32,051 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:32,051 INFO L185 Difference]: Start difference. First operand has 505 places, 494 transitions, 13389 flow. Second operand 13 states and 395 transitions. [2021-03-25 12:15:32,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 499 transitions, 14545 flow [2021-03-25 12:15:32,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 499 transitions, 14413 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:32,540 INFO L241 Difference]: Finished difference. Result has 508 places, 493 transitions, 13418 flow [2021-03-25 12:15:32,541 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13257, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13418, PETRI_PLACES=508, PETRI_TRANSITIONS=493} [2021-03-25 12:15:32,541 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 461 predicate places. [2021-03-25 12:15:32,541 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:32,541 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 493 transitions, 13418 flow [2021-03-25 12:15:32,541 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 493 transitions, 13418 flow [2021-03-25 12:15:32,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 493 transitions, 13418 flow [2021-03-25 12:15:32,728 INFO L129 PetriNetUnfolder]: 289/764 cut-off events. [2021-03-25 12:15:32,729 INFO L130 PetriNetUnfolder]: For 70464/70581 co-relation queries the response was YES. [2021-03-25 12:15:32,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11968 conditions, 764 events. 289/764 cut-off events. For 70464/70581 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5459 event pairs, 22 based on Foata normal form. 21/783 useless extension candidates. Maximal degree in co-relation 11767. Up to 255 conditions per place. [2021-03-25 12:15:32,745 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:15:32,770 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:32,770 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:32,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 229 [2021-03-25 12:15:32,770 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 493 transitions, 13418 flow [2021-03-25 12:15:32,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:32,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:32,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:32,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-03-25 12:15:32,771 INFO L428 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:32,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:32,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2070112837, now seen corresponding path program 132 times [2021-03-25 12:15:32,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:32,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295194829] [2021-03-25 12:15:32,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:32,777 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:32,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:32,781 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:32,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:32,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:32,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:32,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:32,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:32,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:32,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:32,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:32,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:32,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:32,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:32,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:32,829 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:32,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:32,842 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:32,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:32,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:32,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295194829] [2021-03-25 12:15:32,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:32,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:32,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445135935] [2021-03-25 12:15:32,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:32,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:32,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:32,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:32,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:32,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 493 transitions, 13418 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:32,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:32,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:32,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:33,369 INFO L129 PetriNetUnfolder]: 327/833 cut-off events. [2021-03-25 12:15:33,369 INFO L130 PetriNetUnfolder]: For 74775/74798 co-relation queries the response was YES. [2021-03-25 12:15:33,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13444 conditions, 833 events. 327/833 cut-off events. For 74775/74798 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5851 event pairs, 38 based on Foata normal form. 10/841 useless extension candidates. Maximal degree in co-relation 13241. Up to 642 conditions per place. [2021-03-25 12:15:33,383 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 372 selfloop transitions, 110 changer transitions 6/496 dead transitions. [2021-03-25 12:15:33,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 496 transitions, 14588 flow [2021-03-25 12:15:33,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:15:33,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3230240549828179 [2021-03-25 12:15:33,384 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:15:33,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:15:33,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:33,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:15:33,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:33,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:33,385 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:33,385 INFO L185 Difference]: Start difference. First operand has 505 places, 493 transitions, 13418 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:15:33,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 496 transitions, 14588 flow [2021-03-25 12:15:33,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 496 transitions, 14400 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:33,832 INFO L241 Difference]: Finished difference. Result has 505 places, 488 transitions, 13473 flow [2021-03-25 12:15:33,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13232, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13473, PETRI_PLACES=505, PETRI_TRANSITIONS=488} [2021-03-25 12:15:33,832 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 458 predicate places. [2021-03-25 12:15:33,832 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:33,832 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 505 places, 488 transitions, 13473 flow [2021-03-25 12:15:33,833 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 505 places, 488 transitions, 13473 flow [2021-03-25 12:15:33,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 488 transitions, 13473 flow [2021-03-25 12:15:33,979 INFO L129 PetriNetUnfolder]: 286/760 cut-off events. [2021-03-25 12:15:33,979 INFO L130 PetriNetUnfolder]: For 68948/69079 co-relation queries the response was YES. [2021-03-25 12:15:33,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12004 conditions, 760 events. 286/760 cut-off events. For 68948/69079 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 5482 event pairs, 18 based on Foata normal form. 21/779 useless extension candidates. Maximal degree in co-relation 11768. Up to 253 conditions per place. [2021-03-25 12:15:33,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:15:34,024 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:34,024 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:34,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 192 [2021-03-25 12:15:34,024 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 488 transitions, 13473 flow [2021-03-25 12:15:34,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:34,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:34,024 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:34,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-03-25 12:15:34,024 INFO L428 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:34,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:34,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1512875145, now seen corresponding path program 133 times [2021-03-25 12:15:34,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:34,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952884142] [2021-03-25 12:15:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:34,032 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:34,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:34,036 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:34,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:34,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:34,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:34,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:34,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:34,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:34,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:34,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:34,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:34,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:34,110 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:34,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:34,118 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:34,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:34,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:34,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952884142] [2021-03-25 12:15:34,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:34,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:34,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431114198] [2021-03-25 12:15:34,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:34,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:34,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:34,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:34,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:34,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 488 transitions, 13473 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:34,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:34,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:34,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:34,632 INFO L129 PetriNetUnfolder]: 326/832 cut-off events. [2021-03-25 12:15:34,632 INFO L130 PetriNetUnfolder]: For 73950/73973 co-relation queries the response was YES. [2021-03-25 12:15:34,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13519 conditions, 832 events. 326/832 cut-off events. For 73950/73973 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5797 event pairs, 36 based on Foata normal form. 10/840 useless extension candidates. Maximal degree in co-relation 13277. Up to 605 conditions per place. [2021-03-25 12:15:34,648 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 328 selfloop transitions, 156 changer transitions 2/494 dead transitions. [2021-03-25 12:15:34,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 494 transitions, 14697 flow [2021-03-25 12:15:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 344 transitions. [2021-03-25 12:15:34,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32239925023430177 [2021-03-25 12:15:34,649 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 344 transitions. [2021-03-25 12:15:34,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 344 transitions. [2021-03-25 12:15:34,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:34,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 344 transitions. [2021-03-25 12:15:34,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:34,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:34,650 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:34,650 INFO L185 Difference]: Start difference. First operand has 505 places, 488 transitions, 13473 flow. Second operand 11 states and 344 transitions. [2021-03-25 12:15:34,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 494 transitions, 14697 flow [2021-03-25 12:15:35,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 494 transitions, 14382 flow, removed 11 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:35,136 INFO L241 Difference]: Finished difference. Result has 505 places, 490 transitions, 13603 flow [2021-03-25 12:15:35,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13162, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13603, PETRI_PLACES=505, PETRI_TRANSITIONS=490} [2021-03-25 12:15:35,137 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 458 predicate places. [2021-03-25 12:15:35,137 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:35,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 505 places, 490 transitions, 13603 flow [2021-03-25 12:15:35,137 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 505 places, 490 transitions, 13603 flow [2021-03-25 12:15:35,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 504 places, 490 transitions, 13603 flow [2021-03-25 12:15:35,283 INFO L129 PetriNetUnfolder]: 287/762 cut-off events. [2021-03-25 12:15:35,283 INFO L130 PetriNetUnfolder]: For 71007/71124 co-relation queries the response was YES. [2021-03-25 12:15:35,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12052 conditions, 762 events. 287/762 cut-off events. For 71007/71124 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 5499 event pairs, 20 based on Foata normal form. 21/780 useless extension candidates. Maximal degree in co-relation 11820. Up to 253 conditions per place. [2021-03-25 12:15:35,301 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:15:35,328 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:35,329 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:35,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 192 [2021-03-25 12:15:35,329 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 490 transitions, 13603 flow [2021-03-25 12:15:35,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:35,329 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:35,329 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:35,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-03-25 12:15:35,329 INFO L428 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:35,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:35,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1672494027, now seen corresponding path program 134 times [2021-03-25 12:15:35,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:35,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056074301] [2021-03-25 12:15:35,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:35,336 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:35,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:35,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:35,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:35,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:35,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:35,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:35,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:35,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:35,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:35,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:35,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:35,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:35,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:35,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:35,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:35,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:35,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:35,404 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:35,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:35,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056074301] [2021-03-25 12:15:35,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:35,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:35,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329884164] [2021-03-25 12:15:35,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:35,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:35,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:35,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:35,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:35,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 490 transitions, 13603 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:35,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:35,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:35,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:35,886 INFO L129 PetriNetUnfolder]: 329/841 cut-off events. [2021-03-25 12:15:35,887 INFO L130 PetriNetUnfolder]: For 75023/75046 co-relation queries the response was YES. [2021-03-25 12:15:35,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13687 conditions, 841 events. 329/841 cut-off events. For 75023/75046 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 5930 event pairs, 45 based on Foata normal form. 8/846 useless extension candidates. Maximal degree in co-relation 13433. Up to 677 conditions per place. [2021-03-25 12:15:35,902 INFO L132 encePairwiseOnDemand]: 86/97 looper letters, 419 selfloop transitions, 76 changer transitions 2/505 dead transitions. [2021-03-25 12:15:35,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 505 transitions, 15068 flow [2021-03-25 12:15:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:15:35,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32052483598875353 [2021-03-25 12:15:35,903 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:15:35,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:15:35,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:35,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:15:35,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:35,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:35,904 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:35,904 INFO L185 Difference]: Start difference. First operand has 504 places, 490 transitions, 13603 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:15:35,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 505 transitions, 15068 flow [2021-03-25 12:15:36,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 505 transitions, 14647 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 12:15:36,411 INFO L241 Difference]: Finished difference. Result has 508 places, 501 transitions, 13720 flow [2021-03-25 12:15:36,411 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13200, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13720, PETRI_PLACES=508, PETRI_TRANSITIONS=501} [2021-03-25 12:15:36,411 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 461 predicate places. [2021-03-25 12:15:36,411 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:36,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 501 transitions, 13720 flow [2021-03-25 12:15:36,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 501 transitions, 13720 flow [2021-03-25 12:15:36,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 501 transitions, 13720 flow [2021-03-25 12:15:36,572 INFO L129 PetriNetUnfolder]: 291/779 cut-off events. [2021-03-25 12:15:36,572 INFO L130 PetriNetUnfolder]: For 67891/68018 co-relation queries the response was YES. [2021-03-25 12:15:36,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12127 conditions, 779 events. 291/779 cut-off events. For 67891/68018 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5676 event pairs, 25 based on Foata normal form. 18/793 useless extension candidates. Maximal degree in co-relation 11906. Up to 259 conditions per place. [2021-03-25 12:15:36,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:15:36,622 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:36,623 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:36,623 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 212 [2021-03-25 12:15:36,623 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 501 transitions, 13720 flow [2021-03-25 12:15:36,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:36,623 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:36,623 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:36,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-03-25 12:15:36,623 INFO L428 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:36,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:36,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1471986603, now seen corresponding path program 135 times [2021-03-25 12:15:36,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:36,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211583932] [2021-03-25 12:15:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:36,630 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:36,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:36,634 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:36,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:36,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:36,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:36,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:36,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:36,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:36,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:36,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:36,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:36,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:36,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:36,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:15:36,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:36,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:36,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:36,713 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:36,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:36,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211583932] [2021-03-25 12:15:36,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:36,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:36,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589050275] [2021-03-25 12:15:36,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:36,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:36,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:36,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:36,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:36,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 501 transitions, 13720 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:36,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:36,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:36,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:37,328 INFO L129 PetriNetUnfolder]: 328/842 cut-off events. [2021-03-25 12:15:37,328 INFO L130 PetriNetUnfolder]: For 75997/76020 co-relation queries the response was YES. [2021-03-25 12:15:37,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13584 conditions, 842 events. 328/842 cut-off events. For 75997/76020 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5956 event pairs, 42 based on Foata normal form. 10/850 useless extension candidates. Maximal degree in co-relation 13359. Up to 659 conditions per place. [2021-03-25 12:15:37,343 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 393 selfloop transitions, 95 changer transitions 7/503 dead transitions. [2021-03-25 12:15:37,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 503 transitions, 14816 flow [2021-03-25 12:15:37,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:15:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:15:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 456 transitions. [2021-03-25 12:15:37,344 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3134020618556701 [2021-03-25 12:15:37,344 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 456 transitions. [2021-03-25 12:15:37,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 456 transitions. [2021-03-25 12:15:37,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:37,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 456 transitions. [2021-03-25 12:15:37,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.4) internal successors, (456), 15 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:37,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:37,345 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:37,345 INFO L185 Difference]: Start difference. First operand has 508 places, 501 transitions, 13720 flow. Second operand 15 states and 456 transitions. [2021-03-25 12:15:37,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 503 transitions, 14816 flow [2021-03-25 12:15:37,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 503 transitions, 14529 flow, removed 73 selfloop flow, removed 7 redundant places. [2021-03-25 12:15:37,834 INFO L241 Difference]: Finished difference. Result has 517 places, 495 transitions, 13632 flow [2021-03-25 12:15:37,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13433, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13632, PETRI_PLACES=517, PETRI_TRANSITIONS=495} [2021-03-25 12:15:37,835 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 470 predicate places. [2021-03-25 12:15:37,835 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:37,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 495 transitions, 13632 flow [2021-03-25 12:15:37,835 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 495 transitions, 13632 flow [2021-03-25 12:15:37,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 515 places, 495 transitions, 13632 flow [2021-03-25 12:15:37,983 INFO L129 PetriNetUnfolder]: 289/776 cut-off events. [2021-03-25 12:15:37,983 INFO L130 PetriNetUnfolder]: For 71263/71379 co-relation queries the response was YES. [2021-03-25 12:15:37,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12175 conditions, 776 events. 289/776 cut-off events. For 71263/71379 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5637 event pairs, 20 based on Foata normal form. 20/794 useless extension candidates. Maximal degree in co-relation 11954. Up to 258 conditions per place. [2021-03-25 12:15:38,000 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:15:38,027 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:38,027 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:38,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 192 [2021-03-25 12:15:38,028 INFO L480 AbstractCegarLoop]: Abstraction has has 515 places, 495 transitions, 13632 flow [2021-03-25 12:15:38,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:38,028 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:38,028 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:38,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-03-25 12:15:38,028 INFO L428 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:38,028 INFO L82 PathProgramCache]: Analyzing trace with hash -464369847, now seen corresponding path program 136 times [2021-03-25 12:15:38,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:38,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927612232] [2021-03-25 12:15:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:38,034 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:38,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:38,038 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:38,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:38,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:38,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:38,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:38,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:38,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:38,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:38,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:38,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:38,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:38,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:38,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:38,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:38,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:38,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:38,112 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:38,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:38,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927612232] [2021-03-25 12:15:38,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:38,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:38,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175673076] [2021-03-25 12:15:38,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:38,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:38,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:38,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:38,115 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:38,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 495 transitions, 13632 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:38,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:38,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:38,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:38,707 INFO L129 PetriNetUnfolder]: 326/840 cut-off events. [2021-03-25 12:15:38,707 INFO L130 PetriNetUnfolder]: For 74908/74931 co-relation queries the response was YES. [2021-03-25 12:15:38,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13581 conditions, 840 events. 326/840 cut-off events. For 74908/74931 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5950 event pairs, 41 based on Foata normal form. 10/848 useless extension candidates. Maximal degree in co-relation 13356. Up to 665 conditions per place. [2021-03-25 12:15:38,722 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 402 selfloop transitions, 87 changer transitions 2/499 dead transitions. [2021-03-25 12:15:38,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 499 transitions, 14782 flow [2021-03-25 12:15:38,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:15:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:15:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2021-03-25 12:15:38,723 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3156225218080888 [2021-03-25 12:15:38,724 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 398 transitions. [2021-03-25 12:15:38,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 398 transitions. [2021-03-25 12:15:38,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:38,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 398 transitions. [2021-03-25 12:15:38,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.615384615384617) internal successors, (398), 13 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:38,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:38,725 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:38,725 INFO L185 Difference]: Start difference. First operand has 515 places, 495 transitions, 13632 flow. Second operand 13 states and 398 transitions. [2021-03-25 12:15:38,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 499 transitions, 14782 flow [2021-03-25 12:15:39,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 499 transitions, 14413 flow, removed 12 selfloop flow, removed 21 redundant places. [2021-03-25 12:15:39,227 INFO L241 Difference]: Finished difference. Result has 509 places, 496 transitions, 13524 flow [2021-03-25 12:15:39,228 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13269, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13524, PETRI_PLACES=509, PETRI_TRANSITIONS=496} [2021-03-25 12:15:39,228 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:15:39,228 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:39,228 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 496 transitions, 13524 flow [2021-03-25 12:15:39,228 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 496 transitions, 13524 flow [2021-03-25 12:15:39,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 496 transitions, 13524 flow [2021-03-25 12:15:39,374 INFO L129 PetriNetUnfolder]: 286/767 cut-off events. [2021-03-25 12:15:39,374 INFO L130 PetriNetUnfolder]: For 67196/67327 co-relation queries the response was YES. [2021-03-25 12:15:39,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11947 conditions, 767 events. 286/767 cut-off events. For 67196/67327 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 5541 event pairs, 20 based on Foata normal form. 21/786 useless extension candidates. Maximal degree in co-relation 11728. Up to 256 conditions per place. [2021-03-25 12:15:39,393 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:15:39,421 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:39,421 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:39,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 193 [2021-03-25 12:15:39,421 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 496 transitions, 13524 flow [2021-03-25 12:15:39,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:39,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:39,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:39,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-03-25 12:15:39,422 INFO L428 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:39,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:39,422 INFO L82 PathProgramCache]: Analyzing trace with hash -416416764, now seen corresponding path program 5 times [2021-03-25 12:15:39,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:39,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439821643] [2021-03-25 12:15:39,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:39,427 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:39,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:39,432 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:39,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:39,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:39,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:39,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:39,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:39,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:39,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:39,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:39,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:39,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:39,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:39,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:39,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:39,493 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:39,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:39,507 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:39,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:39,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:39,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439821643] [2021-03-25 12:15:39,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:39,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:39,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338410129] [2021-03-25 12:15:39,510 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:39,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:39,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:39,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:39,511 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:39,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 496 transitions, 13524 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:39,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:39,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:39,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:40,077 INFO L129 PetriNetUnfolder]: 325/835 cut-off events. [2021-03-25 12:15:40,077 INFO L130 PetriNetUnfolder]: For 72645/72668 co-relation queries the response was YES. [2021-03-25 12:15:40,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13428 conditions, 835 events. 325/835 cut-off events. For 72645/72668 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5855 event pairs, 44 based on Foata normal form. 10/843 useless extension candidates. Maximal degree in co-relation 13205. Up to 641 conditions per place. [2021-03-25 12:15:40,092 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 373 selfloop transitions, 109 changer transitions 9/499 dead transitions. [2021-03-25 12:15:40,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 499 transitions, 14696 flow [2021-03-25 12:15:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:40,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:15:40,093 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3178694158075601 [2021-03-25 12:15:40,093 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:15:40,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:15:40,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:40,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:15:40,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:40,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:40,094 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:40,094 INFO L185 Difference]: Start difference. First operand has 508 places, 496 transitions, 13524 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:15:40,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 499 transitions, 14696 flow [2021-03-25 12:15:40,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 499 transitions, 14470 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-03-25 12:15:40,582 INFO L241 Difference]: Finished difference. Result has 509 places, 488 transitions, 13524 flow [2021-03-25 12:15:40,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13300, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13524, PETRI_PLACES=509, PETRI_TRANSITIONS=488} [2021-03-25 12:15:40,583 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:15:40,583 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:40,583 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 488 transitions, 13524 flow [2021-03-25 12:15:40,583 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 488 transitions, 13524 flow [2021-03-25 12:15:40,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 504 places, 488 transitions, 13524 flow [2021-03-25 12:15:40,734 INFO L129 PetriNetUnfolder]: 283/761 cut-off events. [2021-03-25 12:15:40,734 INFO L130 PetriNetUnfolder]: For 67536/67651 co-relation queries the response was YES. [2021-03-25 12:15:40,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11952 conditions, 761 events. 283/761 cut-off events. For 67536/67651 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5512 event pairs, 15 based on Foata normal form. 19/778 useless extension candidates. Maximal degree in co-relation 11732. Up to 251 conditions per place. [2021-03-25 12:15:40,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:15:40,782 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:40,782 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:40,782 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 199 [2021-03-25 12:15:40,782 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 488 transitions, 13524 flow [2021-03-25 12:15:40,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:40,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:40,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:40,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-03-25 12:15:40,782 INFO L428 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:40,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:40,782 INFO L82 PathProgramCache]: Analyzing trace with hash 354061218, now seen corresponding path program 6 times [2021-03-25 12:15:40,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:40,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600506821] [2021-03-25 12:15:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:40,788 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:40,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:40,793 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:40,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:40,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:40,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:40,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:40,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:40,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:40,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:40,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:40,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:40,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:40,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:40,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:40,866 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:40,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:40,881 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:40,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:40,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600506821] [2021-03-25 12:15:40,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:40,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:15:40,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868130233] [2021-03-25 12:15:40,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:15:40,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:40,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:15:40,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:15:40,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2021-03-25 12:15:40,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 488 transitions, 13524 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:40,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:40,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2021-03-25 12:15:40,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:41,529 INFO L129 PetriNetUnfolder]: 323/833 cut-off events. [2021-03-25 12:15:41,529 INFO L130 PetriNetUnfolder]: For 73446/73469 co-relation queries the response was YES. [2021-03-25 12:15:41,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13502 conditions, 833 events. 323/833 cut-off events. For 73446/73469 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5874 event pairs, 37 based on Foata normal form. 10/841 useless extension candidates. Maximal degree in co-relation 13278. Up to 630 conditions per place. [2021-03-25 12:15:41,542 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 363 selfloop transitions, 117 changer transitions 6/494 dead transitions. [2021-03-25 12:15:41,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 494 transitions, 14829 flow [2021-03-25 12:15:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:15:41,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:15:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 484 transitions. [2021-03-25 12:15:41,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3118556701030928 [2021-03-25 12:15:41,543 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 484 transitions. [2021-03-25 12:15:41,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 484 transitions. [2021-03-25 12:15:41,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:41,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 484 transitions. [2021-03-25 12:15:41,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 30.25) internal successors, (484), 16 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:41,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:41,545 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:41,545 INFO L185 Difference]: Start difference. First operand has 504 places, 488 transitions, 13524 flow. Second operand 16 states and 484 transitions. [2021-03-25 12:15:41,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 494 transitions, 14829 flow [2021-03-25 12:15:42,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 494 transitions, 14456 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-03-25 12:15:42,020 INFO L241 Difference]: Finished difference. Result has 508 places, 486 transitions, 13516 flow [2021-03-25 12:15:42,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=13159, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13516, PETRI_PLACES=508, PETRI_TRANSITIONS=486} [2021-03-25 12:15:42,020 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 461 predicate places. [2021-03-25 12:15:42,020 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:42,020 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 486 transitions, 13516 flow [2021-03-25 12:15:42,020 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 486 transitions, 13516 flow [2021-03-25 12:15:42,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 486 transitions, 13516 flow [2021-03-25 12:15:42,174 INFO L129 PetriNetUnfolder]: 281/763 cut-off events. [2021-03-25 12:15:42,174 INFO L130 PetriNetUnfolder]: For 69194/69311 co-relation queries the response was YES. [2021-03-25 12:15:42,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11923 conditions, 763 events. 281/763 cut-off events. For 69194/69311 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5567 event pairs, 14 based on Foata normal form. 21/782 useless extension candidates. Maximal degree in co-relation 11702. Up to 250 conditions per place. [2021-03-25 12:15:42,191 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:15:42,286 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:42,286 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:42,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 266 [2021-03-25 12:15:42,286 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 486 transitions, 13521 flow [2021-03-25 12:15:42,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:42,286 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:42,286 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:42,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-25 12:15:42,286 INFO L428 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:42,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:42,287 INFO L82 PathProgramCache]: Analyzing trace with hash -383881759, now seen corresponding path program 137 times [2021-03-25 12:15:42,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:42,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256641614] [2021-03-25 12:15:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:42,308 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:42,313 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:42,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:42,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:42,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:42,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:42,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:42,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:42,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:42,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:42,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:42,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:42,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:42,376 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:15:42,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:42,379 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:42,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:42,397 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:42,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:42,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256641614] [2021-03-25 12:15:42,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:42,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:42,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297793608] [2021-03-25 12:15:42,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:42,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:42,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:42,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:42,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:42,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 486 transitions, 13521 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:42,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:42,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:42,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:42,901 INFO L129 PetriNetUnfolder]: 320/828 cut-off events. [2021-03-25 12:15:42,901 INFO L130 PetriNetUnfolder]: For 74013/74061 co-relation queries the response was YES. [2021-03-25 12:15:42,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13393 conditions, 828 events. 320/828 cut-off events. For 74013/74061 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5828 event pairs, 42 based on Foata normal form. 11/836 useless extension candidates. Maximal degree in co-relation 13168. Up to 652 conditions per place. [2021-03-25 12:15:42,915 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 392 selfloop transitions, 82 changer transitions 6/488 dead transitions. [2021-03-25 12:15:42,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 488 transitions, 14585 flow [2021-03-25 12:15:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:15:42,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2021-03-25 12:15:42,916 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:15:42,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:15:42,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:42,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:15:42,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:42,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:42,917 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:42,917 INFO L185 Difference]: Start difference. First operand has 507 places, 486 transitions, 13521 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:15:42,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 488 transitions, 14585 flow [2021-03-25 12:15:43,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 488 transitions, 14194 flow, removed 79 selfloop flow, removed 14 redundant places. [2021-03-25 12:15:43,368 INFO L241 Difference]: Finished difference. Result has 504 places, 481 transitions, 13329 flow [2021-03-25 12:15:43,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=13134, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13329, PETRI_PLACES=504, PETRI_TRANSITIONS=481} [2021-03-25 12:15:43,369 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 457 predicate places. [2021-03-25 12:15:43,369 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:43,369 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 481 transitions, 13329 flow [2021-03-25 12:15:43,369 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 481 transitions, 13329 flow [2021-03-25 12:15:43,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 503 places, 481 transitions, 13329 flow [2021-03-25 12:15:43,512 INFO L129 PetriNetUnfolder]: 279/754 cut-off events. [2021-03-25 12:15:43,512 INFO L130 PetriNetUnfolder]: For 66607/66738 co-relation queries the response was YES. [2021-03-25 12:15:43,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11808 conditions, 754 events. 279/754 cut-off events. For 66607/66738 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5471 event pairs, 19 based on Foata normal form. 21/773 useless extension candidates. Maximal degree in co-relation 11589. Up to 246 conditions per place. [2021-03-25 12:15:43,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:43,555 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:43,555 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:43,555 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 186 [2021-03-25 12:15:43,557 INFO L480 AbstractCegarLoop]: Abstraction has has 503 places, 481 transitions, 13329 flow [2021-03-25 12:15:43,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:43,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:43,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:43,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-25 12:15:43,557 INFO L428 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:43,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:43,557 INFO L82 PathProgramCache]: Analyzing trace with hash 790504500, now seen corresponding path program 1 times [2021-03-25 12:15:43,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:43,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630861596] [2021-03-25 12:15:43,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:43,565 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:43,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:43,569 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:43,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:43,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:43,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:43,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:43,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:43,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:43,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:43,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:43,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:43,616 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:15:43,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:15:43,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:43,643 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:15:43,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:15:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:43,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630861596] [2021-03-25 12:15:43,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:43,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:43,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641575442] [2021-03-25 12:15:43,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:43,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:43,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:43,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:43,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:43,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 481 transitions, 13329 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:43,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:43,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:43,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:44,107 INFO L129 PetriNetUnfolder]: 318/825 cut-off events. [2021-03-25 12:15:44,107 INFO L130 PetriNetUnfolder]: For 71296/71319 co-relation queries the response was YES. [2021-03-25 12:15:44,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13264 conditions, 825 events. 318/825 cut-off events. For 71296/71319 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5845 event pairs, 45 based on Foata normal form. 8/830 useless extension candidates. Maximal degree in co-relation 13041. Up to 676 conditions per place. [2021-03-25 12:15:44,123 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 424 selfloop transitions, 49 changer transitions 2/483 dead transitions. [2021-03-25 12:15:44,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 483 transitions, 14360 flow [2021-03-25 12:15:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:15:44,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3153061224489796 [2021-03-25 12:15:44,125 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:15:44,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:15:44,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:44,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:15:44,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:44,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:44,125 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:44,126 INFO L185 Difference]: Start difference. First operand has 503 places, 481 transitions, 13329 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:15:44,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 483 transitions, 14360 flow [2021-03-25 12:15:44,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 483 transitions, 13966 flow, removed 7 selfloop flow, removed 17 redundant places. [2021-03-25 12:15:44,617 INFO L241 Difference]: Finished difference. Result has 497 places, 480 transitions, 13071 flow [2021-03-25 12:15:44,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12937, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13071, PETRI_PLACES=497, PETRI_TRANSITIONS=480} [2021-03-25 12:15:44,617 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:44,617 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:44,617 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 480 transitions, 13071 flow [2021-03-25 12:15:44,618 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 480 transitions, 13071 flow [2021-03-25 12:15:44,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 497 places, 480 transitions, 13071 flow [2021-03-25 12:15:44,755 INFO L129 PetriNetUnfolder]: 280/760 cut-off events. [2021-03-25 12:15:44,755 INFO L130 PetriNetUnfolder]: For 64098/64268 co-relation queries the response was YES. [2021-03-25 12:15:44,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11623 conditions, 760 events. 280/760 cut-off events. For 64098/64268 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5588 event pairs, 23 based on Foata normal form. 21/776 useless extension candidates. Maximal degree in co-relation 11407. Up to 250 conditions per place. [2021-03-25 12:15:44,771 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:44,798 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:44,798 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:44,798 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 12:15:44,798 INFO L480 AbstractCegarLoop]: Abstraction has has 497 places, 480 transitions, 13071 flow [2021-03-25 12:15:44,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:44,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:44,798 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:44,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-25 12:15:44,798 INFO L428 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:44,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:44,798 INFO L82 PathProgramCache]: Analyzing trace with hash -902560612, now seen corresponding path program 7 times [2021-03-25 12:15:44,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:44,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844081210] [2021-03-25 12:15:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:44,805 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:44,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:44,811 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:44,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:44,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:44,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:44,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:44,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:44,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:44,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:44,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:44,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:44,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:44,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:44,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:44,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:44,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:44,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:44,886 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:44,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:44,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844081210] [2021-03-25 12:15:44,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:44,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:44,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002015569] [2021-03-25 12:15:44,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:44,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:44,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:44,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:44,889 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:44,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 480 transitions, 13071 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:44,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:44,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:44,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:45,404 INFO L129 PetriNetUnfolder]: 317/821 cut-off events. [2021-03-25 12:15:45,404 INFO L130 PetriNetUnfolder]: For 68145/68193 co-relation queries the response was YES. [2021-03-25 12:15:45,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13024 conditions, 821 events. 317/821 cut-off events. For 68145/68193 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5805 event pairs, 42 based on Foata normal form. 11/829 useless extension candidates. Maximal degree in co-relation 12804. Up to 627 conditions per place. [2021-03-25 12:15:45,418 INFO L132 encePairwiseOnDemand]: 84/98 looper letters, 360 selfloop transitions, 112 changer transitions 3/483 dead transitions. [2021-03-25 12:15:45,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 483 transitions, 14203 flow [2021-03-25 12:15:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:15:45,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31462585034013607 [2021-03-25 12:15:45,420 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:15:45,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:15:45,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:45,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:15:45,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:45,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:45,421 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:45,421 INFO L185 Difference]: Start difference. First operand has 497 places, 480 transitions, 13071 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:15:45,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 483 transitions, 14203 flow [2021-03-25 12:15:45,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 483 transitions, 14043 flow, removed 2 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:45,873 INFO L241 Difference]: Finished difference. Result has 497 places, 478 transitions, 13226 flow [2021-03-25 12:15:45,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12911, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13226, PETRI_PLACES=497, PETRI_TRANSITIONS=478} [2021-03-25 12:15:45,873 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:45,873 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:45,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 478 transitions, 13226 flow [2021-03-25 12:15:45,874 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 478 transitions, 13226 flow [2021-03-25 12:15:45,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 478 transitions, 13226 flow [2021-03-25 12:15:46,019 INFO L129 PetriNetUnfolder]: 287/774 cut-off events. [2021-03-25 12:15:46,019 INFO L130 PetriNetUnfolder]: For 66067/66127 co-relation queries the response was YES. [2021-03-25 12:15:46,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11994 conditions, 774 events. 287/774 cut-off events. For 66067/66127 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5655 event pairs, 15 based on Foata normal form. 10/781 useless extension candidates. Maximal degree in co-relation 11777. Up to 259 conditions per place. [2021-03-25 12:15:46,037 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:46,063 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:46,063 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:46,064 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 12:15:46,064 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 478 transitions, 13226 flow [2021-03-25 12:15:46,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:46,064 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:46,064 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:46,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-03-25 12:15:46,064 INFO L428 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:46,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1678979261, now seen corresponding path program 138 times [2021-03-25 12:15:46,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:46,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306148944] [2021-03-25 12:15:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:46,072 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:46,077 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:46,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:46,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:46,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:46,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:46,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:46,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:46,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:46,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:46,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:46,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:46,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:46,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:46,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:46,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:46,162 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:46,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:46,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306148944] [2021-03-25 12:15:46,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:46,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:46,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751796260] [2021-03-25 12:15:46,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:46,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:46,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:46,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:46,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:46,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 478 transitions, 13226 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:46,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:46,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:46,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:46,840 INFO L129 PetriNetUnfolder]: 316/822 cut-off events. [2021-03-25 12:15:46,840 INFO L130 PetriNetUnfolder]: For 67769/67792 co-relation queries the response was YES. [2021-03-25 12:15:46,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13127 conditions, 822 events. 316/822 cut-off events. For 67769/67792 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5822 event pairs, 40 based on Foata normal form. 10/830 useless extension candidates. Maximal degree in co-relation 12906. Up to 640 conditions per place. [2021-03-25 12:15:46,855 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 378 selfloop transitions, 91 changer transitions 3/480 dead transitions. [2021-03-25 12:15:46,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 480 transitions, 14268 flow [2021-03-25 12:15:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:15:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:15:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 452 transitions. [2021-03-25 12:15:46,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3074829931972789 [2021-03-25 12:15:46,856 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 452 transitions. [2021-03-25 12:15:46,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 452 transitions. [2021-03-25 12:15:46,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:46,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 452 transitions. [2021-03-25 12:15:46,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.133333333333333) internal successors, (452), 15 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:46,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 98.0) internal successors, (1568), 16 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:46,857 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 98.0) internal successors, (1568), 16 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:46,857 INFO L185 Difference]: Start difference. First operand has 495 places, 478 transitions, 13226 flow. Second operand 15 states and 452 transitions. [2021-03-25 12:15:46,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 480 transitions, 14268 flow [2021-03-25 12:15:47,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 480 transitions, 13930 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:47,395 INFO L241 Difference]: Finished difference. Result has 498 places, 476 transitions, 13063 flow [2021-03-25 12:15:47,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12892, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13063, PETRI_PLACES=498, PETRI_TRANSITIONS=476} [2021-03-25 12:15:47,395 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 451 predicate places. [2021-03-25 12:15:47,395 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:47,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 476 transitions, 13063 flow [2021-03-25 12:15:47,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 476 transitions, 13063 flow [2021-03-25 12:15:47,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 476 transitions, 13063 flow [2021-03-25 12:15:47,592 INFO L129 PetriNetUnfolder]: 278/754 cut-off events. [2021-03-25 12:15:47,592 INFO L130 PetriNetUnfolder]: For 63163/63306 co-relation queries the response was YES. [2021-03-25 12:15:47,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11571 conditions, 754 events. 278/754 cut-off events. For 63163/63306 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5517 event pairs, 23 based on Foata normal form. 20/770 useless extension candidates. Maximal degree in co-relation 11356. Up to 249 conditions per place. [2021-03-25 12:15:47,616 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:47,640 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:47,640 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:47,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-03-25 12:15:47,641 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 476 transitions, 13063 flow [2021-03-25 12:15:47,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:47,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:47,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:47,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-03-25 12:15:47,641 INFO L428 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:47,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:47,641 INFO L82 PathProgramCache]: Analyzing trace with hash 812991691, now seen corresponding path program 139 times [2021-03-25 12:15:47,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:47,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921148420] [2021-03-25 12:15:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:47,648 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:47,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:47,652 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:47,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:47,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:47,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:47,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:47,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:47,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:47,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:47,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:47,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:47,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:47,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:47,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:47,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:47,717 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:47,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:47,731 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:47,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921148420] [2021-03-25 12:15:47,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:47,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:47,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230752058] [2021-03-25 12:15:47,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:47,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:47,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:47,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:47,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:47,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 476 transitions, 13063 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:47,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:47,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:47,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:48,235 INFO L129 PetriNetUnfolder]: 315/811 cut-off events. [2021-03-25 12:15:48,236 INFO L130 PetriNetUnfolder]: For 67085/67114 co-relation queries the response was YES. [2021-03-25 12:15:48,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12986 conditions, 811 events. 315/811 cut-off events. For 67085/67114 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5647 event pairs, 42 based on Foata normal form. 16/825 useless extension candidates. Maximal degree in co-relation 12767. Up to 589 conditions per place. [2021-03-25 12:15:48,250 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 314 selfloop transitions, 154 changer transitions 3/479 dead transitions. [2021-03-25 12:15:48,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 479 transitions, 14187 flow [2021-03-25 12:15:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 343 transitions. [2021-03-25 12:15:48,251 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3181818181818182 [2021-03-25 12:15:48,251 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 343 transitions. [2021-03-25 12:15:48,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 343 transitions. [2021-03-25 12:15:48,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:48,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 343 transitions. [2021-03-25 12:15:48,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:48,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:48,252 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:48,252 INFO L185 Difference]: Start difference. First operand has 498 places, 476 transitions, 13063 flow. Second operand 11 states and 343 transitions. [2021-03-25 12:15:48,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 479 transitions, 14187 flow [2021-03-25 12:15:48,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 479 transitions, 13989 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 12:15:48,690 INFO L241 Difference]: Finished difference. Result has 494 places, 474 transitions, 13307 flow [2021-03-25 12:15:48,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12869, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13307, PETRI_PLACES=494, PETRI_TRANSITIONS=474} [2021-03-25 12:15:48,690 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 447 predicate places. [2021-03-25 12:15:48,690 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:48,690 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 494 places, 474 transitions, 13307 flow [2021-03-25 12:15:48,690 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 494 places, 474 transitions, 13307 flow [2021-03-25 12:15:48,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 492 places, 474 transitions, 13307 flow [2021-03-25 12:15:48,817 INFO L129 PetriNetUnfolder]: 275/744 cut-off events. [2021-03-25 12:15:48,817 INFO L130 PetriNetUnfolder]: For 60730/60845 co-relation queries the response was YES. [2021-03-25 12:15:48,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11628 conditions, 744 events. 275/744 cut-off events. For 60730/60845 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5374 event pairs, 18 based on Foata normal form. 19/761 useless extension candidates. Maximal degree in co-relation 11414. Up to 245 conditions per place. [2021-03-25 12:15:48,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:48,857 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:48,857 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:48,857 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-25 12:15:48,857 INFO L480 AbstractCegarLoop]: Abstraction has has 492 places, 474 transitions, 13307 flow [2021-03-25 12:15:48,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:48,857 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:48,857 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:48,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-03-25 12:15:48,858 INFO L428 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash -547453685, now seen corresponding path program 140 times [2021-03-25 12:15:48,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:48,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566718084] [2021-03-25 12:15:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:48,863 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:48,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:48,867 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:48,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:48,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:48,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:48,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:48,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:48,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:48,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:48,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:48,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:48,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:48,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:48,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:48,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:48,939 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:48,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:48,954 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:48,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:48,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566718084] [2021-03-25 12:15:48,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:48,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:15:48,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575847776] [2021-03-25 12:15:48,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:15:48,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:48,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:15:48,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:15:48,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:48,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 474 transitions, 13307 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:48,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:48,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:48,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:49,535 INFO L129 PetriNetUnfolder]: 314/814 cut-off events. [2021-03-25 12:15:49,536 INFO L130 PetriNetUnfolder]: For 65705/65728 co-relation queries the response was YES. [2021-03-25 12:15:49,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13079 conditions, 814 events. 314/814 cut-off events. For 65705/65728 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5742 event pairs, 40 based on Foata normal form. 10/822 useless extension candidates. Maximal degree in co-relation 12861. Up to 632 conditions per place. [2021-03-25 12:15:49,548 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 370 selfloop transitions, 96 changer transitions 3/477 dead transitions. [2021-03-25 12:15:49,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 477 transitions, 14372 flow [2021-03-25 12:15:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 12:15:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 12:15:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 505 transitions. [2021-03-25 12:15:49,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30312124849939975 [2021-03-25 12:15:49,550 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 505 transitions. [2021-03-25 12:15:49,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 505 transitions. [2021-03-25 12:15:49,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:49,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 505 transitions. [2021-03-25 12:15:49,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 29.705882352941178) internal successors, (505), 17 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:49,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 98.0) internal successors, (1764), 18 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:49,551 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 98.0) internal successors, (1764), 18 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:49,551 INFO L185 Difference]: Start difference. First operand has 492 places, 474 transitions, 13307 flow. Second operand 17 states and 505 transitions. [2021-03-25 12:15:49,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 477 transitions, 14372 flow [2021-03-25 12:15:49,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 477 transitions, 13892 flow, removed 8 selfloop flow, removed 13 redundant places. [2021-03-25 12:15:49,962 INFO L241 Difference]: Finished difference. Result has 497 places, 473 transitions, 13021 flow [2021-03-25 12:15:49,962 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12831, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13021, PETRI_PLACES=497, PETRI_TRANSITIONS=473} [2021-03-25 12:15:49,963 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:15:49,963 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:49,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 473 transitions, 13021 flow [2021-03-25 12:15:49,963 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 473 transitions, 13021 flow [2021-03-25 12:15:49,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 473 transitions, 13021 flow [2021-03-25 12:15:50,088 INFO L129 PetriNetUnfolder]: 273/746 cut-off events. [2021-03-25 12:15:50,088 INFO L130 PetriNetUnfolder]: For 61132/61262 co-relation queries the response was YES. [2021-03-25 12:15:50,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11342 conditions, 746 events. 273/746 cut-off events. For 61132/61262 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5448 event pairs, 23 based on Foata normal form. 21/762 useless extension candidates. Maximal degree in co-relation 11131. Up to 246 conditions per place. [2021-03-25 12:15:50,104 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:15:50,129 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:50,129 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:50,129 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-25 12:15:50,130 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 473 transitions, 13021 flow [2021-03-25 12:15:50,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:50,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:50,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:50,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-03-25 12:15:50,130 INFO L428 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:50,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:50,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1021108223, now seen corresponding path program 141 times [2021-03-25 12:15:50,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:50,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745675014] [2021-03-25 12:15:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:50,136 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:50,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:50,140 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:50,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:50,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:50,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:50,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:50,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:50,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:50,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:50,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:50,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:50,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:50,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:50,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:50,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:50,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:50,243 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:50,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:50,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745675014] [2021-03-25 12:15:50,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:50,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:50,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674505658] [2021-03-25 12:15:50,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:50,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:50,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:50,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:50,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:50,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 473 transitions, 13021 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:50,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:50,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:50,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:50,721 INFO L129 PetriNetUnfolder]: 312/817 cut-off events. [2021-03-25 12:15:50,721 INFO L130 PetriNetUnfolder]: For 65674/65689 co-relation queries the response was YES. [2021-03-25 12:15:50,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12919 conditions, 817 events. 312/817 cut-off events. For 65674/65689 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5794 event pairs, 43 based on Foata normal form. 8/823 useless extension candidates. Maximal degree in co-relation 12704. Up to 630 conditions per place. [2021-03-25 12:15:50,736 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 370 selfloop transitions, 95 changer transitions 5/478 dead transitions. [2021-03-25 12:15:50,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 478 transitions, 14181 flow [2021-03-25 12:15:50,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:15:50,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:15:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2021-03-25 12:15:50,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31240188383045525 [2021-03-25 12:15:50,749 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 398 transitions. [2021-03-25 12:15:50,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 398 transitions. [2021-03-25 12:15:50,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:50,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 398 transitions. [2021-03-25 12:15:50,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.615384615384617) internal successors, (398), 13 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:50,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:50,750 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:50,750 INFO L185 Difference]: Start difference. First operand has 496 places, 473 transitions, 13021 flow. Second operand 13 states and 398 transitions. [2021-03-25 12:15:50,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 478 transitions, 14181 flow [2021-03-25 12:15:51,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 478 transitions, 13987 flow, removed 6 selfloop flow, removed 15 redundant places. [2021-03-25 12:15:51,172 INFO L241 Difference]: Finished difference. Result has 496 places, 472 transitions, 13129 flow [2021-03-25 12:15:51,172 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12831, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13129, PETRI_PLACES=496, PETRI_TRANSITIONS=472} [2021-03-25 12:15:51,172 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 449 predicate places. [2021-03-25 12:15:51,172 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:51,173 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 472 transitions, 13129 flow [2021-03-25 12:15:51,173 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 472 transitions, 13129 flow [2021-03-25 12:15:51,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 472 transitions, 13129 flow [2021-03-25 12:15:51,301 INFO L129 PetriNetUnfolder]: 273/752 cut-off events. [2021-03-25 12:15:51,301 INFO L130 PetriNetUnfolder]: For 63011/63127 co-relation queries the response was YES. [2021-03-25 12:15:51,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11590 conditions, 752 events. 273/752 cut-off events. For 63011/63127 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5526 event pairs, 18 based on Foata normal form. 20/770 useless extension candidates. Maximal degree in co-relation 11378. Up to 250 conditions per place. [2021-03-25 12:15:51,316 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:51,340 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:51,341 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:51,341 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 12:15:51,341 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 472 transitions, 13129 flow [2021-03-25 12:15:51,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:51,341 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:51,341 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:51,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-03-25 12:15:51,341 INFO L428 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:51,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:51,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1152358523, now seen corresponding path program 142 times [2021-03-25 12:15:51,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:51,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699431068] [2021-03-25 12:15:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:51,347 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:51,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:51,351 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:51,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:51,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:51,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:51,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:51,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:51,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:51,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:51,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:51,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:51,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:51,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:51,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:51,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:51,435 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:51,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:51,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699431068] [2021-03-25 12:15:51,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:51,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:15:51,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976028392] [2021-03-25 12:15:51,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:15:51,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:51,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:15:51,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:15:51,438 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:51,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 472 transitions, 13129 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:51,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:51,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:51,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:51,999 INFO L129 PetriNetUnfolder]: 309/814 cut-off events. [2021-03-25 12:15:51,999 INFO L130 PetriNetUnfolder]: For 65497/65520 co-relation queries the response was YES. [2021-03-25 12:15:52,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12934 conditions, 814 events. 309/814 cut-off events. For 65497/65520 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5772 event pairs, 43 based on Foata normal form. 10/822 useless extension candidates. Maximal degree in co-relation 12718. Up to 632 conditions per place. [2021-03-25 12:15:52,012 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 373 selfloop transitions, 89 changer transitions 6/476 dead transitions. [2021-03-25 12:15:52,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 476 transitions, 14209 flow [2021-03-25 12:15:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:15:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:15:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 478 transitions. [2021-03-25 12:15:52,013 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3048469387755102 [2021-03-25 12:15:52,013 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 478 transitions. [2021-03-25 12:15:52,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 478 transitions. [2021-03-25 12:15:52,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:52,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 478 transitions. [2021-03-25 12:15:52,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 29.875) internal successors, (478), 16 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:52,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:52,014 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:52,014 INFO L185 Difference]: Start difference. First operand has 495 places, 472 transitions, 13129 flow. Second operand 16 states and 478 transitions. [2021-03-25 12:15:52,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 476 transitions, 14209 flow [2021-03-25 12:15:52,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 476 transitions, 13862 flow, removed 61 selfloop flow, removed 11 redundant places. [2021-03-25 12:15:52,408 INFO L241 Difference]: Finished difference. Result has 502 places, 469 transitions, 12915 flow [2021-03-25 12:15:52,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12784, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=12915, PETRI_PLACES=502, PETRI_TRANSITIONS=469} [2021-03-25 12:15:52,412 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 455 predicate places. [2021-03-25 12:15:52,412 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:52,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 469 transitions, 12915 flow [2021-03-25 12:15:52,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 469 transitions, 12915 flow [2021-03-25 12:15:52,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 469 transitions, 12915 flow [2021-03-25 12:15:52,563 INFO L129 PetriNetUnfolder]: 280/768 cut-off events. [2021-03-25 12:15:52,563 INFO L130 PetriNetUnfolder]: For 61892/61951 co-relation queries the response was YES. [2021-03-25 12:15:52,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11768 conditions, 768 events. 280/768 cut-off events. For 61892/61951 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5626 event pairs, 16 based on Foata normal form. 9/775 useless extension candidates. Maximal degree in co-relation 11577. Up to 262 conditions per place. [2021-03-25 12:15:52,579 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:15:52,604 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:52,604 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:52,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 192 [2021-03-25 12:15:52,604 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 469 transitions, 12915 flow [2021-03-25 12:15:52,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:52,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:52,604 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:52,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-03-25 12:15:52,604 INFO L428 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:52,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:52,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1639788497, now seen corresponding path program 143 times [2021-03-25 12:15:52,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:52,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504370052] [2021-03-25 12:15:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:52,610 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:52,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:52,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:52,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:52,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:52,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:52,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:52,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:52,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:52,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:52,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:52,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:52,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:52,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:52,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:52,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:52,696 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:52,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:52,710 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:52,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:52,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504370052] [2021-03-25 12:15:52,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:52,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:15:52,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90347405] [2021-03-25 12:15:52,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:15:52,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:52,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:15:52,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:15:52,713 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:52,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 469 transitions, 12915 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:52,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:52,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:52,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:53,239 INFO L129 PetriNetUnfolder]: 307/807 cut-off events. [2021-03-25 12:15:53,239 INFO L130 PetriNetUnfolder]: For 65850/65873 co-relation queries the response was YES. [2021-03-25 12:15:53,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12826 conditions, 807 events. 307/807 cut-off events. For 65850/65873 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5718 event pairs, 43 based on Foata normal form. 10/815 useless extension candidates. Maximal degree in co-relation 12633. Up to 607 conditions per place. [2021-03-25 12:15:53,252 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 346 selfloop transitions, 115 changer transitions 5/474 dead transitions. [2021-03-25 12:15:53,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 474 transitions, 14065 flow [2021-03-25 12:15:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:15:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:15:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 454 transitions. [2021-03-25 12:15:53,253 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.308843537414966 [2021-03-25 12:15:53,253 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 454 transitions. [2021-03-25 12:15:53,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 454 transitions. [2021-03-25 12:15:53,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:53,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 454 transitions. [2021-03-25 12:15:53,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.266666666666666) internal successors, (454), 15 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:53,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 98.0) internal successors, (1568), 16 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:53,254 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 98.0) internal successors, (1568), 16 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:53,254 INFO L185 Difference]: Start difference. First operand has 499 places, 469 transitions, 12915 flow. Second operand 15 states and 454 transitions. [2021-03-25 12:15:53,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 474 transitions, 14065 flow [2021-03-25 12:15:53,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 474 transitions, 13883 flow, removed 5 selfloop flow, removed 15 redundant places. [2021-03-25 12:15:53,654 INFO L241 Difference]: Finished difference. Result has 501 places, 468 transitions, 13083 flow [2021-03-25 12:15:53,654 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12737, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13083, PETRI_PLACES=501, PETRI_TRANSITIONS=468} [2021-03-25 12:15:53,654 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 454 predicate places. [2021-03-25 12:15:53,655 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:53,655 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 501 places, 468 transitions, 13083 flow [2021-03-25 12:15:53,655 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 501 places, 468 transitions, 13083 flow [2021-03-25 12:15:53,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 500 places, 468 transitions, 13083 flow [2021-03-25 12:15:53,780 INFO L129 PetriNetUnfolder]: 266/742 cut-off events. [2021-03-25 12:15:53,780 INFO L130 PetriNetUnfolder]: For 64897/65028 co-relation queries the response was YES. [2021-03-25 12:15:53,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11447 conditions, 742 events. 266/742 cut-off events. For 64897/65028 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5453 event pairs, 23 based on Foata normal form. 21/760 useless extension candidates. Maximal degree in co-relation 11234. Up to 247 conditions per place. [2021-03-25 12:15:53,795 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:15:53,820 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:53,820 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:53,820 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 165 [2021-03-25 12:15:53,820 INFO L480 AbstractCegarLoop]: Abstraction has has 500 places, 468 transitions, 13083 flow [2021-03-25 12:15:53,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:53,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:53,820 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:53,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-03-25 12:15:53,820 INFO L428 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:53,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:53,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1092179413, now seen corresponding path program 144 times [2021-03-25 12:15:53,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:53,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722966279] [2021-03-25 12:15:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:53,827 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:53,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:53,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:53,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:53,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:53,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:53,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:53,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:53,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:53,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:15:53,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:53,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:53,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:53,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:53,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:53,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:53,882 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:53,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:53,894 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:53,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:53,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722966279] [2021-03-25 12:15:53,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:53,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:53,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505525198] [2021-03-25 12:15:53,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:53,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:53,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:53,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:53,897 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:53,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 468 transitions, 13083 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:53,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:53,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:53,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:54,347 INFO L129 PetriNetUnfolder]: 305/806 cut-off events. [2021-03-25 12:15:54,347 INFO L130 PetriNetUnfolder]: For 66827/66842 co-relation queries the response was YES. [2021-03-25 12:15:54,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12875 conditions, 806 events. 305/806 cut-off events. For 66827/66842 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5740 event pairs, 27 based on Foata normal form. 12/818 useless extension candidates. Maximal degree in co-relation 12658. Up to 595 conditions per place. [2021-03-25 12:15:54,360 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 373 selfloop transitions, 94 changer transitions 2/477 dead transitions. [2021-03-25 12:15:54,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 477 transitions, 14225 flow [2021-03-25 12:15:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:54,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:15:54,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32755102040816325 [2021-03-25 12:15:54,361 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:15:54,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:15:54,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:54,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:15:54,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:54,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:54,362 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:54,362 INFO L185 Difference]: Start difference. First operand has 500 places, 468 transitions, 13083 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:15:54,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 477 transitions, 14225 flow [2021-03-25 12:15:54,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 477 transitions, 13808 flow, removed 65 selfloop flow, removed 16 redundant places. [2021-03-25 12:15:54,754 INFO L241 Difference]: Finished difference. Result has 496 places, 470 transitions, 13048 flow [2021-03-25 12:15:54,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12666, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13048, PETRI_PLACES=496, PETRI_TRANSITIONS=470} [2021-03-25 12:15:54,755 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 449 predicate places. [2021-03-25 12:15:54,755 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:54,755 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 470 transitions, 13048 flow [2021-03-25 12:15:54,755 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 470 transitions, 13048 flow [2021-03-25 12:15:54,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 470 transitions, 13048 flow [2021-03-25 12:15:54,903 INFO L129 PetriNetUnfolder]: 278/774 cut-off events. [2021-03-25 12:15:54,903 INFO L130 PetriNetUnfolder]: For 60880/60884 co-relation queries the response was YES. [2021-03-25 12:15:54,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11937 conditions, 774 events. 278/774 cut-off events. For 60880/60884 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5723 event pairs, 23 based on Foata normal form. 4/777 useless extension candidates. Maximal degree in co-relation 11705. Up to 262 conditions per place. [2021-03-25 12:15:54,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:15:54,945 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:54,945 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:54,945 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 190 [2021-03-25 12:15:54,945 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 470 transitions, 13048 flow [2021-03-25 12:15:54,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:54,945 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:54,945 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:54,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-03-25 12:15:54,945 INFO L428 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:54,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:54,946 INFO L82 PathProgramCache]: Analyzing trace with hash 307328185, now seen corresponding path program 145 times [2021-03-25 12:15:54,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:54,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222729280] [2021-03-25 12:15:54,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:54,952 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:54,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:54,956 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:54,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:54,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:54,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:54,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:54,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:54,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:54,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:54,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:54,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:54,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:54,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:55,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:55,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:55,022 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:55,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:55,036 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:55,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:55,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222729280] [2021-03-25 12:15:55,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:55,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:55,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386813671] [2021-03-25 12:15:55,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:55,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:55,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:55,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:55,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:55,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 470 transitions, 13048 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:55,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:55,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:55,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:55,534 INFO L129 PetriNetUnfolder]: 304/809 cut-off events. [2021-03-25 12:15:55,534 INFO L130 PetriNetUnfolder]: For 65031/65046 co-relation queries the response was YES. [2021-03-25 12:15:55,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12822 conditions, 809 events. 304/809 cut-off events. For 65031/65046 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5795 event pairs, 35 based on Foata normal form. 10/818 useless extension candidates. Maximal degree in co-relation 12605. Up to 649 conditions per place. [2021-03-25 12:15:55,548 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 408 selfloop transitions, 56 changer transitions 3/475 dead transitions. [2021-03-25 12:15:55,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 475 transitions, 14073 flow [2021-03-25 12:15:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 336 transitions. [2021-03-25 12:15:55,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3116883116883117 [2021-03-25 12:15:55,550 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 336 transitions. [2021-03-25 12:15:55,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 336 transitions. [2021-03-25 12:15:55,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:55,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 336 transitions. [2021-03-25 12:15:55,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.545454545454547) internal successors, (336), 11 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:55,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:55,551 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:55,551 INFO L185 Difference]: Start difference. First operand has 495 places, 470 transitions, 13048 flow. Second operand 11 states and 336 transitions. [2021-03-25 12:15:55,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 475 transitions, 14073 flow [2021-03-25 12:15:56,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 475 transitions, 13610 flow, removed 56 selfloop flow, removed 12 redundant places. [2021-03-25 12:15:56,022 INFO L241 Difference]: Finished difference. Result has 495 places, 469 transitions, 12720 flow [2021-03-25 12:15:56,022 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12592, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12720, PETRI_PLACES=495, PETRI_TRANSITIONS=469} [2021-03-25 12:15:56,022 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 448 predicate places. [2021-03-25 12:15:56,022 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:56,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 495 places, 469 transitions, 12720 flow [2021-03-25 12:15:56,022 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 495 places, 469 transitions, 12720 flow [2021-03-25 12:15:56,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 494 places, 469 transitions, 12720 flow [2021-03-25 12:15:56,150 INFO L129 PetriNetUnfolder]: 263/742 cut-off events. [2021-03-25 12:15:56,150 INFO L130 PetriNetUnfolder]: For 59009/59122 co-relation queries the response was YES. [2021-03-25 12:15:56,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11187 conditions, 742 events. 263/742 cut-off events. For 59009/59122 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5541 event pairs, 23 based on Foata normal form. 20/760 useless extension candidates. Maximal degree in co-relation 10955. Up to 243 conditions per place. [2021-03-25 12:15:56,166 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:56,190 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:56,190 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:56,190 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-03-25 12:15:56,191 INFO L480 AbstractCegarLoop]: Abstraction has has 494 places, 469 transitions, 12720 flow [2021-03-25 12:15:56,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:56,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:56,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:56,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-03-25 12:15:56,191 INFO L428 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:56,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:56,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1587655545, now seen corresponding path program 146 times [2021-03-25 12:15:56,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:56,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345350117] [2021-03-25 12:15:56,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:56,197 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:56,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:56,201 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:56,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:56,207 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:15:56,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:15:56,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:56,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:56,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:56,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:56,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:56,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:56,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:56,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:56,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:56,262 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:56,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:56,265 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:56,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:56,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345350117] [2021-03-25 12:15:56,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:56,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:56,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27619455] [2021-03-25 12:15:56,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:56,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:56,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:56,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:56,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:56,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 469 transitions, 12720 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:56,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:56,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:56,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:56,763 INFO L129 PetriNetUnfolder]: 304/816 cut-off events. [2021-03-25 12:15:56,764 INFO L130 PetriNetUnfolder]: For 64935/64958 co-relation queries the response was YES. [2021-03-25 12:15:56,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12707 conditions, 816 events. 304/816 cut-off events. For 64935/64958 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5897 event pairs, 36 based on Foata normal form. 10/824 useless extension candidates. Maximal degree in co-relation 12490. Up to 653 conditions per place. [2021-03-25 12:15:56,777 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 405 selfloop transitions, 60 changer transitions 3/476 dead transitions. [2021-03-25 12:15:56,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 476 transitions, 13916 flow [2021-03-25 12:15:56,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:15:56,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:15:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 367 transitions. [2021-03-25 12:15:56,778 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3120748299319728 [2021-03-25 12:15:56,778 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 367 transitions. [2021-03-25 12:15:56,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 367 transitions. [2021-03-25 12:15:56,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:56,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 367 transitions. [2021-03-25 12:15:56,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:56,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:56,779 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:56,779 INFO L185 Difference]: Start difference. First operand has 494 places, 469 transitions, 12720 flow. Second operand 12 states and 367 transitions. [2021-03-25 12:15:56,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 476 transitions, 13916 flow [2021-03-25 12:15:57,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 476 transitions, 13761 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 12:15:57,195 INFO L241 Difference]: Finished difference. Result has 500 places, 472 transitions, 12852 flow [2021-03-25 12:15:57,195 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12574, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12852, PETRI_PLACES=500, PETRI_TRANSITIONS=472} [2021-03-25 12:15:57,195 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2021-03-25 12:15:57,195 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:57,195 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 472 transitions, 12852 flow [2021-03-25 12:15:57,195 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 472 transitions, 12852 flow [2021-03-25 12:15:57,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 472 transitions, 12852 flow [2021-03-25 12:15:57,338 INFO L129 PetriNetUnfolder]: 263/745 cut-off events. [2021-03-25 12:15:57,338 INFO L130 PetriNetUnfolder]: For 59824/59920 co-relation queries the response was YES. [2021-03-25 12:15:57,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11283 conditions, 745 events. 263/745 cut-off events. For 59824/59920 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5588 event pairs, 23 based on Foata normal form. 21/765 useless extension candidates. Maximal degree in co-relation 11048. Up to 242 conditions per place. [2021-03-25 12:15:57,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:15:57,381 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:57,382 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:57,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 187 [2021-03-25 12:15:57,382 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 472 transitions, 12852 flow [2021-03-25 12:15:57,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:57,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:57,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:57,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-03-25 12:15:57,382 INFO L428 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:57,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:57,382 INFO L82 PathProgramCache]: Analyzing trace with hash -153908827, now seen corresponding path program 147 times [2021-03-25 12:15:57,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:57,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822251249] [2021-03-25 12:15:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:57,388 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:57,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:57,393 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:57,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:57,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:57,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:57,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:57,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:57,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:57,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:57,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:57,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:57,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:57,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:57,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:57,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:57,444 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:15:57,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:15:57,457 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:57,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:57,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822251249] [2021-03-25 12:15:57,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:57,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:15:57,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382991904] [2021-03-25 12:15:57,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:15:57,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:57,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:15:57,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:15:57,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 98 [2021-03-25 12:15:57,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 472 transitions, 12852 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:57,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:57,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 98 [2021-03-25 12:15:57,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:57,891 INFO L129 PetriNetUnfolder]: 302/812 cut-off events. [2021-03-25 12:15:57,891 INFO L130 PetriNetUnfolder]: For 64195/64210 co-relation queries the response was YES. [2021-03-25 12:15:57,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12683 conditions, 812 events. 302/812 cut-off events. For 64195/64210 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5867 event pairs, 38 based on Foata normal form. 8/818 useless extension candidates. Maximal degree in co-relation 12463. Up to 629 conditions per place. [2021-03-25 12:15:57,905 INFO L132 encePairwiseOnDemand]: 84/98 looper letters, 381 selfloop transitions, 79 changer transitions 7/475 dead transitions. [2021-03-25 12:15:57,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 475 transitions, 13824 flow [2021-03-25 12:15:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:15:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:15:57,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 311 transitions. [2021-03-25 12:15:57,906 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3173469387755102 [2021-03-25 12:15:57,906 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 311 transitions. [2021-03-25 12:15:57,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 311 transitions. [2021-03-25 12:15:57,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:57,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 311 transitions. [2021-03-25 12:15:57,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.1) internal successors, (311), 10 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:57,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:57,907 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:57,907 INFO L185 Difference]: Start difference. First operand has 499 places, 472 transitions, 12852 flow. Second operand 10 states and 311 transitions. [2021-03-25 12:15:57,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 475 transitions, 13824 flow [2021-03-25 12:15:58,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 475 transitions, 13622 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-03-25 12:15:58,348 INFO L241 Difference]: Finished difference. Result has 504 places, 466 transitions, 12593 flow [2021-03-25 12:15:58,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=12650, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12593, PETRI_PLACES=504, PETRI_TRANSITIONS=466} [2021-03-25 12:15:58,349 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 457 predicate places. [2021-03-25 12:15:58,349 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:58,349 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 466 transitions, 12593 flow [2021-03-25 12:15:58,349 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 466 transitions, 12593 flow [2021-03-25 12:15:58,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 500 places, 466 transitions, 12593 flow [2021-03-25 12:15:58,508 INFO L129 PetriNetUnfolder]: 261/739 cut-off events. [2021-03-25 12:15:58,508 INFO L130 PetriNetUnfolder]: For 58472/58563 co-relation queries the response was YES. [2021-03-25 12:15:58,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11016 conditions, 739 events. 261/739 cut-off events. For 58472/58563 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5522 event pairs, 29 based on Foata normal form. 15/752 useless extension candidates. Maximal degree in co-relation 10822. Up to 238 conditions per place. [2021-03-25 12:15:58,522 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:15:58,603 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:58,603 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:15:58,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-25 12:15:58,603 INFO L480 AbstractCegarLoop]: Abstraction has has 500 places, 466 transitions, 12618 flow [2021-03-25 12:15:58,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:58,603 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:58,603 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:58,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-03-25 12:15:58,603 INFO L428 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:58,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1587060899, now seen corresponding path program 148 times [2021-03-25 12:15:58,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:58,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193034901] [2021-03-25 12:15:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:58,610 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:58,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:58,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:58,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:58,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:15:58,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:15:58,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:58,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:58,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:58,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:58,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:58,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:58,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:58,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:58,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:15:58,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:58,690 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:58,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:58,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193034901] [2021-03-25 12:15:58,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:58,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:15:58,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628416071] [2021-03-25 12:15:58,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:15:58,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:58,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:15:58,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:15:58,694 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 99 [2021-03-25 12:15:58,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 466 transitions, 12618 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:58,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:58,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 99 [2021-03-25 12:15:58,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:15:59,244 INFO L129 PetriNetUnfolder]: 299/805 cut-off events. [2021-03-25 12:15:59,244 INFO L130 PetriNetUnfolder]: For 64680/64703 co-relation queries the response was YES. [2021-03-25 12:15:59,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12426 conditions, 805 events. 299/805 cut-off events. For 64680/64703 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5798 event pairs, 33 based on Foata normal form. 12/815 useless extension candidates. Maximal degree in co-relation 12230. Up to 617 conditions per place. [2021-03-25 12:15:59,259 INFO L132 encePairwiseOnDemand]: 84/99 looper letters, 367 selfloop transitions, 92 changer transitions 3/470 dead transitions. [2021-03-25 12:15:59,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 470 transitions, 13608 flow [2021-03-25 12:15:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:15:59,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:15:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:15:59,260 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3186409550045914 [2021-03-25 12:15:59,260 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:15:59,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:15:59,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:15:59,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:15:59,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:59,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:59,261 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:59,261 INFO L185 Difference]: Start difference. First operand has 500 places, 466 transitions, 12618 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:15:59,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 470 transitions, 13608 flow [2021-03-25 12:15:59,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 470 transitions, 13375 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-03-25 12:15:59,645 INFO L241 Difference]: Finished difference. Result has 503 places, 464 transitions, 12602 flow [2021-03-25 12:15:59,645 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=12385, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12602, PETRI_PLACES=503, PETRI_TRANSITIONS=464} [2021-03-25 12:15:59,645 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 456 predicate places. [2021-03-25 12:15:59,645 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:15:59,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 503 places, 464 transitions, 12602 flow [2021-03-25 12:15:59,645 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 503 places, 464 transitions, 12602 flow [2021-03-25 12:15:59,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 501 places, 464 transitions, 12602 flow [2021-03-25 12:15:59,777 INFO L129 PetriNetUnfolder]: 265/755 cut-off events. [2021-03-25 12:15:59,777 INFO L130 PetriNetUnfolder]: For 62155/62259 co-relation queries the response was YES. [2021-03-25 12:15:59,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11324 conditions, 755 events. 265/755 cut-off events. For 62155/62259 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5711 event pairs, 17 based on Foata normal form. 14/767 useless extension candidates. Maximal degree in co-relation 11109. Up to 245 conditions per place. [2021-03-25 12:15:59,793 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:15:59,817 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:15:59,818 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:15:59,818 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 173 [2021-03-25 12:15:59,818 INFO L480 AbstractCegarLoop]: Abstraction has has 501 places, 464 transitions, 12602 flow [2021-03-25 12:15:59,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:59,818 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:15:59,818 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:15:59,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-03-25 12:15:59,818 INFO L428 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:15:59,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:15:59,818 INFO L82 PathProgramCache]: Analyzing trace with hash 450800457, now seen corresponding path program 1 times [2021-03-25 12:15:59,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:15:59,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869432943] [2021-03-25 12:15:59,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:15:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:15:59,824 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:15:59,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:15:59,828 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:15:59,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:15:59,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:59,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:59,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:59,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:59,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:59,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:15:59,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:15:59,864 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:59,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:59,876 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:15:59,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:15:59,879 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:15:59,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:15:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:15:59,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869432943] [2021-03-25 12:15:59,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:15:59,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:15:59,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679898059] [2021-03-25 12:15:59,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:15:59,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:15:59,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:15:59,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:15:59,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 99 [2021-03-25 12:15:59,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 464 transitions, 12602 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:15:59,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:15:59,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 99 [2021-03-25 12:15:59,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:00,268 INFO L129 PetriNetUnfolder]: 299/805 cut-off events. [2021-03-25 12:16:00,268 INFO L130 PetriNetUnfolder]: For 65521/65544 co-relation queries the response was YES. [2021-03-25 12:16:00,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12449 conditions, 805 events. 299/805 cut-off events. For 65521/65544 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5816 event pairs, 39 based on Foata normal form. 8/810 useless extension candidates. Maximal degree in co-relation 12230. Up to 654 conditions per place. [2021-03-25 12:16:00,281 INFO L132 encePairwiseOnDemand]: 88/99 looper letters, 422 selfloop transitions, 36 changer transitions 2/468 dead transitions. [2021-03-25 12:16:00,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 468 transitions, 13614 flow [2021-03-25 12:16:00,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:16:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:16:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 276 transitions. [2021-03-25 12:16:00,283 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30976430976430974 [2021-03-25 12:16:00,283 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 276 transitions. [2021-03-25 12:16:00,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 276 transitions. [2021-03-25 12:16:00,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:00,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 276 transitions. [2021-03-25 12:16:00,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.666666666666668) internal successors, (276), 9 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:00,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:00,284 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:00,284 INFO L185 Difference]: Start difference. First operand has 501 places, 464 transitions, 12602 flow. Second operand 9 states and 276 transitions. [2021-03-25 12:16:00,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 468 transitions, 13614 flow [2021-03-25 12:16:00,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 468 transitions, 13334 flow, removed 9 selfloop flow, removed 13 redundant places. [2021-03-25 12:16:00,736 INFO L241 Difference]: Finished difference. Result has 499 places, 465 transitions, 12435 flow [2021-03-25 12:16:00,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=12324, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=12435, PETRI_PLACES=499, PETRI_TRANSITIONS=465} [2021-03-25 12:16:00,736 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:16:00,736 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:00,737 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 465 transitions, 12435 flow [2021-03-25 12:16:00,737 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 465 transitions, 12435 flow [2021-03-25 12:16:00,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 465 transitions, 12435 flow [2021-03-25 12:16:00,856 INFO L129 PetriNetUnfolder]: 256/726 cut-off events. [2021-03-25 12:16:00,856 INFO L130 PetriNetUnfolder]: For 56471/56568 co-relation queries the response was YES. [2021-03-25 12:16:00,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10755 conditions, 726 events. 256/726 cut-off events. For 56471/56568 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5456 event pairs, 20 based on Foata normal form. 23/747 useless extension candidates. Maximal degree in co-relation 10540. Up to 235 conditions per place. [2021-03-25 12:16:00,870 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:16:00,893 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:00,893 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:00,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-03-25 12:16:00,894 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 465 transitions, 12435 flow [2021-03-25 12:16:00,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:00,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:00,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:00,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-25 12:16:00,894 INFO L428 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:00,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:00,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1667124619, now seen corresponding path program 2 times [2021-03-25 12:16:00,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:00,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114838808] [2021-03-25 12:16:00,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:00,900 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:00,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:00,905 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:00,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:00,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:00,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:00,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:00,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:00,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:00,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:00,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:00,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:00,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:00,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:00,962 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:00,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:00,966 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:00,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:00,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114838808] [2021-03-25 12:16:00,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:00,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:00,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907811903] [2021-03-25 12:16:00,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:00,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:00,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:00,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:00,969 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 99 [2021-03-25 12:16:00,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 465 transitions, 12435 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:00,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:00,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 99 [2021-03-25 12:16:00,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:01,450 INFO L129 PetriNetUnfolder]: 302/810 cut-off events. [2021-03-25 12:16:01,450 INFO L130 PetriNetUnfolder]: For 62399/62414 co-relation queries the response was YES. [2021-03-25 12:16:01,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12445 conditions, 810 events. 302/810 cut-off events. For 62399/62414 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5873 event pairs, 38 based on Foata normal form. 8/816 useless extension candidates. Maximal degree in co-relation 12226. Up to 652 conditions per place. [2021-03-25 12:16:01,463 INFO L132 encePairwiseOnDemand]: 87/99 looper letters, 407 selfloop transitions, 57 changer transitions 3/475 dead transitions. [2021-03-25 12:16:01,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 475 transitions, 13742 flow [2021-03-25 12:16:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:16:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:16:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 393 transitions. [2021-03-25 12:16:01,465 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30536130536130535 [2021-03-25 12:16:01,465 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 393 transitions. [2021-03-25 12:16:01,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 393 transitions. [2021-03-25 12:16:01,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:01,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 393 transitions. [2021-03-25 12:16:01,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.23076923076923) internal successors, (393), 13 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:01,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:01,466 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:01,466 INFO L185 Difference]: Start difference. First operand has 499 places, 465 transitions, 12435 flow. Second operand 13 states and 393 transitions. [2021-03-25 12:16:01,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 475 transitions, 13742 flow [2021-03-25 12:16:01,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 475 transitions, 13602 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:01,869 INFO L241 Difference]: Finished difference. Result has 508 places, 471 transitions, 12704 flow [2021-03-25 12:16:01,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=12299, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=12704, PETRI_PLACES=508, PETRI_TRANSITIONS=471} [2021-03-25 12:16:01,869 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 461 predicate places. [2021-03-25 12:16:01,869 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:01,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 508 places, 471 transitions, 12704 flow [2021-03-25 12:16:01,869 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 508 places, 471 transitions, 12704 flow [2021-03-25 12:16:01,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 471 transitions, 12704 flow [2021-03-25 12:16:02,001 INFO L129 PetriNetUnfolder]: 261/741 cut-off events. [2021-03-25 12:16:02,001 INFO L130 PetriNetUnfolder]: For 58448/58539 co-relation queries the response was YES. [2021-03-25 12:16:02,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11042 conditions, 741 events. 261/741 cut-off events. For 58448/58539 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5583 event pairs, 20 based on Foata normal form. 15/754 useless extension candidates. Maximal degree in co-relation 10824. Up to 243 conditions per place. [2021-03-25 12:16:02,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:16:02,039 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:02,039 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:02,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-03-25 12:16:02,040 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 471 transitions, 12704 flow [2021-03-25 12:16:02,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:02,040 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:02,040 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:02,040 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-03-25 12:16:02,040 INFO L428 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:02,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:02,040 INFO L82 PathProgramCache]: Analyzing trace with hash -409263365, now seen corresponding path program 3 times [2021-03-25 12:16:02,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:02,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103469406] [2021-03-25 12:16:02,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:02,046 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:02,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:02,051 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:02,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:02,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:02,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:02,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:02,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:02,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:02,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:02,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:02,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:02,090 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:02,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:02,102 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:02,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:02,115 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:02,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:02,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103469406] [2021-03-25 12:16:02,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:02,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:02,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533147528] [2021-03-25 12:16:02,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:02,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:02,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:02,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:02,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 99 [2021-03-25 12:16:02,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 471 transitions, 12704 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:02,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:02,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 99 [2021-03-25 12:16:02,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:02,565 INFO L129 PetriNetUnfolder]: 300/807 cut-off events. [2021-03-25 12:16:02,565 INFO L130 PetriNetUnfolder]: For 65096/65119 co-relation queries the response was YES. [2021-03-25 12:16:02,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12432 conditions, 807 events. 300/807 cut-off events. For 65096/65119 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5851 event pairs, 38 based on Foata normal form. 8/812 useless extension candidates. Maximal degree in co-relation 12210. Up to 659 conditions per place. [2021-03-25 12:16:02,578 INFO L132 encePairwiseOnDemand]: 88/99 looper letters, 428 selfloop transitions, 34 changer transitions 3/473 dead transitions. [2021-03-25 12:16:02,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 473 transitions, 13674 flow [2021-03-25 12:16:02,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:02,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 328 transitions. [2021-03-25 12:16:02,579 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3011937557392103 [2021-03-25 12:16:02,579 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 328 transitions. [2021-03-25 12:16:02,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 328 transitions. [2021-03-25 12:16:02,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:02,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 328 transitions. [2021-03-25 12:16:02,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.818181818181817) internal successors, (328), 11 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:02,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:02,580 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:02,580 INFO L185 Difference]: Start difference. First operand has 508 places, 471 transitions, 12704 flow. Second operand 11 states and 328 transitions. [2021-03-25 12:16:02,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 473 transitions, 13674 flow [2021-03-25 12:16:02,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 473 transitions, 13471 flow, removed 54 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:02,969 INFO L241 Difference]: Finished difference. Result has 511 places, 469 transitions, 12541 flow [2021-03-25 12:16:02,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=12501, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12541, PETRI_PLACES=511, PETRI_TRANSITIONS=469} [2021-03-25 12:16:02,970 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:16:02,970 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:02,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 469 transitions, 12541 flow [2021-03-25 12:16:02,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 469 transitions, 12541 flow [2021-03-25 12:16:02,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 509 places, 469 transitions, 12541 flow [2021-03-25 12:16:03,109 INFO L129 PetriNetUnfolder]: 271/760 cut-off events. [2021-03-25 12:16:03,109 INFO L130 PetriNetUnfolder]: For 58669/58771 co-relation queries the response was YES. [2021-03-25 12:16:03,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11227 conditions, 760 events. 271/760 cut-off events. For 58669/58771 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5759 event pairs, 29 based on Foata normal form. 14/769 useless extension candidates. Maximal degree in co-relation 11031. Up to 250 conditions per place. [2021-03-25 12:16:03,127 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:16:03,152 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:03,152 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:03,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-25 12:16:03,152 INFO L480 AbstractCegarLoop]: Abstraction has has 509 places, 469 transitions, 12541 flow [2021-03-25 12:16:03,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:03,152 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:03,152 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:03,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-03-25 12:16:03,152 INFO L428 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash 464477315, now seen corresponding path program 4 times [2021-03-25 12:16:03,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:03,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55097457] [2021-03-25 12:16:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:03,160 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:03,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:03,164 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:03,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:03,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:03,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:03,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:03,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:03,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:03,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:03,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:03,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:03,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:03,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:03,213 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:03,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:03,226 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:03,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:03,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55097457] [2021-03-25 12:16:03,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:03,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:03,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592365045] [2021-03-25 12:16:03,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:03,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:03,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:03,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:03,229 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 99 [2021-03-25 12:16:03,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 469 transitions, 12541 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:03,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:03,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 99 [2021-03-25 12:16:03,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:03,595 INFO L129 PetriNetUnfolder]: 298/806 cut-off events. [2021-03-25 12:16:03,595 INFO L130 PetriNetUnfolder]: For 63850/63865 co-relation queries the response was YES. [2021-03-25 12:16:03,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12329 conditions, 806 events. 298/806 cut-off events. For 63850/63865 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5859 event pairs, 39 based on Foata normal form. 8/812 useless extension candidates. Maximal degree in co-relation 12128. Up to 659 conditions per place. [2021-03-25 12:16:03,609 INFO L132 encePairwiseOnDemand]: 88/99 looper letters, 433 selfloop transitions, 26 changer transitions 5/472 dead transitions. [2021-03-25 12:16:03,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 472 transitions, 13515 flow [2021-03-25 12:16:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:03,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:03,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 298 transitions. [2021-03-25 12:16:03,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.301010101010101 [2021-03-25 12:16:03,610 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 298 transitions. [2021-03-25 12:16:03,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 298 transitions. [2021-03-25 12:16:03,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:03,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 298 transitions. [2021-03-25 12:16:03,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.8) internal successors, (298), 10 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:03,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 99.0) internal successors, (1089), 11 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:03,611 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 99.0) internal successors, (1089), 11 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:03,611 INFO L185 Difference]: Start difference. First operand has 509 places, 469 transitions, 12541 flow. Second operand 10 states and 298 transitions. [2021-03-25 12:16:03,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 472 transitions, 13515 flow [2021-03-25 12:16:04,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 472 transitions, 13440 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:04,061 INFO L241 Difference]: Finished difference. Result has 510 places, 465 transitions, 12457 flow [2021-03-25 12:16:04,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=12470, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12457, PETRI_PLACES=510, PETRI_TRANSITIONS=465} [2021-03-25 12:16:04,061 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 463 predicate places. [2021-03-25 12:16:04,061 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:04,061 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 510 places, 465 transitions, 12457 flow [2021-03-25 12:16:04,061 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 510 places, 465 transitions, 12457 flow [2021-03-25 12:16:04,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 465 transitions, 12457 flow [2021-03-25 12:16:04,199 INFO L129 PetriNetUnfolder]: 268/758 cut-off events. [2021-03-25 12:16:04,200 INFO L130 PetriNetUnfolder]: For 57839/57941 co-relation queries the response was YES. [2021-03-25 12:16:04,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11170 conditions, 758 events. 268/758 cut-off events. For 57839/57941 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5711 event pairs, 24 based on Foata normal form. 14/767 useless extension candidates. Maximal degree in co-relation 10973. Up to 249 conditions per place. [2021-03-25 12:16:04,218 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:16:04,243 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:04,243 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:04,243 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-25 12:16:04,243 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 465 transitions, 12457 flow [2021-03-25 12:16:04,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:04,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:04,243 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:04,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-03-25 12:16:04,243 INFO L428 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:04,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:04,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1231043395, now seen corresponding path program 5 times [2021-03-25 12:16:04,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:04,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787218625] [2021-03-25 12:16:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:04,264 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:04,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:04,269 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:04,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:04,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:04,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:04,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:04,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:04,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:04,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:04,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:04,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:04,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:04,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:04,341 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:04,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:04,350 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:04,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:04,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787218625] [2021-03-25 12:16:04,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:04,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:04,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581479282] [2021-03-25 12:16:04,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:04,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:04,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:04,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:04,354 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 99 [2021-03-25 12:16:04,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 465 transitions, 12457 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:04,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:04,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 99 [2021-03-25 12:16:04,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:04,765 INFO L129 PetriNetUnfolder]: 297/808 cut-off events. [2021-03-25 12:16:04,766 INFO L130 PetriNetUnfolder]: For 64134/64149 co-relation queries the response was YES. [2021-03-25 12:16:04,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12366 conditions, 808 events. 297/808 cut-off events. For 64134/64149 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5890 event pairs, 39 based on Foata normal form. 8/814 useless extension candidates. Maximal degree in co-relation 12163. Up to 660 conditions per place. [2021-03-25 12:16:04,779 INFO L132 encePairwiseOnDemand]: 88/99 looper letters, 432 selfloop transitions, 29 changer transitions 1/470 dead transitions. [2021-03-25 12:16:04,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 470 transitions, 13544 flow [2021-03-25 12:16:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:04,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 327 transitions. [2021-03-25 12:16:04,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3002754820936639 [2021-03-25 12:16:04,781 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 327 transitions. [2021-03-25 12:16:04,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 327 transitions. [2021-03-25 12:16:04,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:04,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 327 transitions. [2021-03-25 12:16:04,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.727272727272727) internal successors, (327), 11 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:04,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:04,781 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 99.0) internal successors, (1188), 12 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:04,781 INFO L185 Difference]: Start difference. First operand has 508 places, 465 transitions, 12457 flow. Second operand 11 states and 327 transitions. [2021-03-25 12:16:04,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 470 transitions, 13544 flow [2021-03-25 12:16:05,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 470 transitions, 13462 flow, removed 11 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:05,233 INFO L241 Difference]: Finished difference. Result has 511 places, 466 transitions, 12500 flow [2021-03-25 12:16:05,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=12377, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12500, PETRI_PLACES=511, PETRI_TRANSITIONS=466} [2021-03-25 12:16:05,234 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:16:05,234 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:05,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 466 transitions, 12500 flow [2021-03-25 12:16:05,234 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 466 transitions, 12500 flow [2021-03-25 12:16:05,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 466 transitions, 12500 flow [2021-03-25 12:16:05,397 INFO L129 PetriNetUnfolder]: 257/747 cut-off events. [2021-03-25 12:16:05,398 INFO L130 PetriNetUnfolder]: For 58816/58905 co-relation queries the response was YES. [2021-03-25 12:16:05,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11007 conditions, 747 events. 257/747 cut-off events. For 58816/58905 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5657 event pairs, 20 based on Foata normal form. 20/766 useless extension candidates. Maximal degree in co-relation 10808. Up to 241 conditions per place. [2021-03-25 12:16:05,414 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:05,498 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:05,498 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:16:05,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-03-25 12:16:05,498 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 466 transitions, 12506 flow [2021-03-25 12:16:05,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:05,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:05,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:05,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-03-25 12:16:05,499 INFO L428 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:05,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:05,499 INFO L82 PathProgramCache]: Analyzing trace with hash -85113909, now seen corresponding path program 6 times [2021-03-25 12:16:05,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:05,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796403740] [2021-03-25 12:16:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:05,505 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:05,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:05,509 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:05,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:05,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:05,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:05,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:05,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:05,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:05,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:05,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:05,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:05,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:05,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:05,569 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:05,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:05,583 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:05,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:05,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:05,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796403740] [2021-03-25 12:16:05,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:05,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:05,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758201236] [2021-03-25 12:16:05,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:05,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:05,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:05,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:05,586 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:05,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 466 transitions, 12506 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:05,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:05,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:05,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:06,046 INFO L129 PetriNetUnfolder]: 296/822 cut-off events. [2021-03-25 12:16:06,046 INFO L130 PetriNetUnfolder]: For 66366/66389 co-relation queries the response was YES. [2021-03-25 12:16:06,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12514 conditions, 822 events. 296/822 cut-off events. For 66366/66389 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6077 event pairs, 39 based on Foata normal form. 8/827 useless extension candidates. Maximal degree in co-relation 12308. Up to 652 conditions per place. [2021-03-25 12:16:06,060 INFO L132 encePairwiseOnDemand]: 88/100 looper letters, 427 selfloop transitions, 33 changer transitions 4/472 dead transitions. [2021-03-25 12:16:06,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 472 transitions, 13631 flow [2021-03-25 12:16:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 356 transitions. [2021-03-25 12:16:06,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2966666666666667 [2021-03-25 12:16:06,061 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 356 transitions. [2021-03-25 12:16:06,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 356 transitions. [2021-03-25 12:16:06,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:06,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 356 transitions. [2021-03-25 12:16:06,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.666666666666668) internal successors, (356), 12 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:06,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:06,062 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:06,062 INFO L185 Difference]: Start difference. First operand has 510 places, 466 transitions, 12506 flow. Second operand 12 states and 356 transitions. [2021-03-25 12:16:06,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 472 transitions, 13631 flow [2021-03-25 12:16:06,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 472 transitions, 13420 flow, removed 35 selfloop flow, removed 13 redundant places. [2021-03-25 12:16:06,482 INFO L241 Difference]: Finished difference. Result has 511 places, 465 transitions, 12384 flow [2021-03-25 12:16:06,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12297, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12384, PETRI_PLACES=511, PETRI_TRANSITIONS=465} [2021-03-25 12:16:06,483 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:16:06,483 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:06,483 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 465 transitions, 12384 flow [2021-03-25 12:16:06,483 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 465 transitions, 12384 flow [2021-03-25 12:16:06,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 465 transitions, 12384 flow [2021-03-25 12:16:06,644 INFO L129 PetriNetUnfolder]: 263/775 cut-off events. [2021-03-25 12:16:06,644 INFO L130 PetriNetUnfolder]: For 59770/59872 co-relation queries the response was YES. [2021-03-25 12:16:06,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11278 conditions, 775 events. 263/775 cut-off events. For 59770/59872 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5931 event pairs, 28 based on Foata normal form. 14/784 useless extension candidates. Maximal degree in co-relation 11076. Up to 254 conditions per place. [2021-03-25 12:16:06,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:16:06,683 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:06,683 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:06,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-25 12:16:06,683 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 465 transitions, 12384 flow [2021-03-25 12:16:06,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:06,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:06,684 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:06,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-03-25 12:16:06,684 INFO L428 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:06,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:06,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1385803978, now seen corresponding path program 1 times [2021-03-25 12:16:06,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:06,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663453001] [2021-03-25 12:16:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:06,690 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:06,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:06,694 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:06,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:06,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:06,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:06,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:06,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:06,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:06,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:16:06,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:06,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:16:06,739 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:16:06,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:06,751 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:16:06,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:16:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:06,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663453001] [2021-03-25 12:16:06,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:06,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:06,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796174557] [2021-03-25 12:16:06,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:06,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:06,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:06,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:06,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 465 transitions, 12384 flow. Second operand has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:06,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:06,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:06,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:07,131 INFO L129 PetriNetUnfolder]: 294/823 cut-off events. [2021-03-25 12:16:07,132 INFO L130 PetriNetUnfolder]: For 66552/66567 co-relation queries the response was YES. [2021-03-25 12:16:07,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12485 conditions, 823 events. 294/823 cut-off events. For 66552/66567 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6105 event pairs, 37 based on Foata normal form. 10/832 useless extension candidates. Maximal degree in co-relation 12278. Up to 658 conditions per place. [2021-03-25 12:16:07,146 INFO L132 encePairwiseOnDemand]: 87/100 looper letters, 429 selfloop transitions, 31 changer transitions 3/471 dead transitions. [2021-03-25 12:16:07,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 471 transitions, 13497 flow [2021-03-25 12:16:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:07,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 303 transitions. [2021-03-25 12:16:07,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.303 [2021-03-25 12:16:07,147 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 303 transitions. [2021-03-25 12:16:07,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 303 transitions. [2021-03-25 12:16:07,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:07,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 303 transitions. [2021-03-25 12:16:07,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.3) internal successors, (303), 10 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:07,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:07,148 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:07,148 INFO L185 Difference]: Start difference. First operand has 510 places, 465 transitions, 12384 flow. Second operand 10 states and 303 transitions. [2021-03-25 12:16:07,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 471 transitions, 13497 flow [2021-03-25 12:16:07,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 471 transitions, 13314 flow, removed 60 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:07,611 INFO L241 Difference]: Finished difference. Result has 512 places, 465 transitions, 12368 flow [2021-03-25 12:16:07,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12277, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12368, PETRI_PLACES=512, PETRI_TRANSITIONS=465} [2021-03-25 12:16:07,611 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 465 predicate places. [2021-03-25 12:16:07,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:07,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 465 transitions, 12368 flow [2021-03-25 12:16:07,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 465 transitions, 12368 flow [2021-03-25 12:16:07,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 465 transitions, 12368 flow [2021-03-25 12:16:07,747 INFO L129 PetriNetUnfolder]: 256/759 cut-off events. [2021-03-25 12:16:07,747 INFO L130 PetriNetUnfolder]: For 57579/57699 co-relation queries the response was YES. [2021-03-25 12:16:07,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10994 conditions, 759 events. 256/759 cut-off events. For 57579/57699 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 5806 event pairs, 28 based on Foata normal form. 16/771 useless extension candidates. Maximal degree in co-relation 10787. Up to 247 conditions per place. [2021-03-25 12:16:07,763 INFO L142 LiptonReduction]: Number of co-enabled transitions 512 [2021-03-25 12:16:07,787 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:07,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:07,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-25 12:16:07,788 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 465 transitions, 12368 flow [2021-03-25 12:16:07,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:07,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:07,788 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:07,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-03-25 12:16:07,788 INFO L428 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:07,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:07,788 INFO L82 PathProgramCache]: Analyzing trace with hash -493629272, now seen corresponding path program 2 times [2021-03-25 12:16:07,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:07,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489238995] [2021-03-25 12:16:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:07,799 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:07,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:07,804 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:07,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:07,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:07,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:07,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:07,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:07,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:07,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:16:07,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:07,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:16:07,849 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:16:07,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:07,861 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:16:07,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:16:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:07,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489238995] [2021-03-25 12:16:07,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:07,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:07,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912166096] [2021-03-25 12:16:07,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:07,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:07,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:07,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:07,864 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:07,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 465 transitions, 12368 flow. Second operand has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:07,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:07,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:07,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:08,326 INFO L129 PetriNetUnfolder]: 293/818 cut-off events. [2021-03-25 12:16:08,326 INFO L130 PetriNetUnfolder]: For 65264/65287 co-relation queries the response was YES. [2021-03-25 12:16:08,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12340 conditions, 818 events. 293/818 cut-off events. For 65264/65287 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6058 event pairs, 28 based on Foata normal form. 10/826 useless extension candidates. Maximal degree in co-relation 12127. Up to 636 conditions per place. [2021-03-25 12:16:08,342 INFO L132 encePairwiseOnDemand]: 86/100 looper letters, 390 selfloop transitions, 66 changer transitions 4/468 dead transitions. [2021-03-25 12:16:08,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 468 transitions, 13301 flow [2021-03-25 12:16:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 367 transitions. [2021-03-25 12:16:08,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30583333333333335 [2021-03-25 12:16:08,343 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 367 transitions. [2021-03-25 12:16:08,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 367 transitions. [2021-03-25 12:16:08,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:08,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 367 transitions. [2021-03-25 12:16:08,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:08,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:08,344 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:08,344 INFO L185 Difference]: Start difference. First operand has 511 places, 465 transitions, 12368 flow. Second operand 12 states and 367 transitions. [2021-03-25 12:16:08,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 468 transitions, 13301 flow [2021-03-25 12:16:08,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 468 transitions, 13206 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:08,756 INFO L241 Difference]: Finished difference. Result has 515 places, 461 transitions, 12379 flow [2021-03-25 12:16:08,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12273, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12379, PETRI_PLACES=515, PETRI_TRANSITIONS=461} [2021-03-25 12:16:08,756 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:16:08,756 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:08,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 461 transitions, 12379 flow [2021-03-25 12:16:08,756 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 461 transitions, 12379 flow [2021-03-25 12:16:08,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 461 transitions, 12379 flow [2021-03-25 12:16:08,886 INFO L129 PetriNetUnfolder]: 252/744 cut-off events. [2021-03-25 12:16:08,886 INFO L130 PetriNetUnfolder]: For 57281/57390 co-relation queries the response was YES. [2021-03-25 12:16:08,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10865 conditions, 744 events. 252/744 cut-off events. For 57281/57390 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5681 event pairs, 23 based on Foata normal form. 21/761 useless extension candidates. Maximal degree in co-relation 10657. Up to 242 conditions per place. [2021-03-25 12:16:08,901 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:16:08,925 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:08,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:08,926 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-03-25 12:16:08,926 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 461 transitions, 12379 flow [2021-03-25 12:16:08,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:08,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:08,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:08,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-03-25 12:16:08,926 INFO L428 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:08,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:08,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1697996079, now seen corresponding path program 7 times [2021-03-25 12:16:08,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:08,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438597256] [2021-03-25 12:16:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:08,938 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:08,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:08,943 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:08,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:08,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:08,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:08,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:08,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:08,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:08,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:08,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:08,990 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:08,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:09,003 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:09,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:09,006 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:09,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:09,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438597256] [2021-03-25 12:16:09,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:09,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:09,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175347056] [2021-03-25 12:16:09,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:09,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:09,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:09,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:09,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:09,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 461 transitions, 12379 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:09,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:09,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:09,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:09,431 INFO L129 PetriNetUnfolder]: 294/815 cut-off events. [2021-03-25 12:16:09,431 INFO L130 PetriNetUnfolder]: For 65289/65312 co-relation queries the response was YES. [2021-03-25 12:16:09,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12434 conditions, 815 events. 294/815 cut-off events. For 65289/65312 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5972 event pairs, 39 based on Foata normal form. 8/820 useless extension candidates. Maximal degree in co-relation 12223. Up to 648 conditions per place. [2021-03-25 12:16:09,444 INFO L132 encePairwiseOnDemand]: 89/100 looper letters, 411 selfloop transitions, 45 changer transitions 3/467 dead transitions. [2021-03-25 12:16:09,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 467 transitions, 13512 flow [2021-03-25 12:16:09,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2021-03-25 12:16:09,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.304 [2021-03-25 12:16:09,445 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 304 transitions. [2021-03-25 12:16:09,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 304 transitions. [2021-03-25 12:16:09,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:09,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 304 transitions. [2021-03-25 12:16:09,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.4) internal successors, (304), 10 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:09,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:09,446 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:09,446 INFO L185 Difference]: Start difference. First operand has 511 places, 461 transitions, 12379 flow. Second operand 10 states and 304 transitions. [2021-03-25 12:16:09,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 467 transitions, 13512 flow [2021-03-25 12:16:09,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 467 transitions, 13291 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 12:16:09,855 INFO L241 Difference]: Finished difference. Result has 507 places, 463 transitions, 12359 flow [2021-03-25 12:16:09,855 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12160, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12359, PETRI_PLACES=507, PETRI_TRANSITIONS=463} [2021-03-25 12:16:09,855 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 460 predicate places. [2021-03-25 12:16:09,855 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:09,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 463 transitions, 12359 flow [2021-03-25 12:16:09,856 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 463 transitions, 12359 flow [2021-03-25 12:16:09,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 463 transitions, 12359 flow [2021-03-25 12:16:09,986 INFO L129 PetriNetUnfolder]: 253/752 cut-off events. [2021-03-25 12:16:09,986 INFO L130 PetriNetUnfolder]: For 57990/58083 co-relation queries the response was YES. [2021-03-25 12:16:09,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10923 conditions, 752 events. 253/752 cut-off events. For 57990/58083 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 5759 event pairs, 20 based on Foata normal form. 17/767 useless extension candidates. Maximal degree in co-relation 10707. Up to 244 conditions per place. [2021-03-25 12:16:10,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:16:10,029 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:10,029 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:10,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 175 [2021-03-25 12:16:10,030 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 463 transitions, 12359 flow [2021-03-25 12:16:10,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:10,030 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:10,030 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:10,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-03-25 12:16:10,030 INFO L428 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:10,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1684319221, now seen corresponding path program 8 times [2021-03-25 12:16:10,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:10,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763529249] [2021-03-25 12:16:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:10,037 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:10,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:10,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:10,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:10,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:10,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:10,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:10,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:10,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:10,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:10,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:10,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:10,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:10,118 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:10,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:10,131 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:10,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:10,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763529249] [2021-03-25 12:16:10,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:10,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:10,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669998745] [2021-03-25 12:16:10,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:10,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:10,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:10,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:10,134 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:10,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 463 transitions, 12359 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:10,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:10,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:10,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:10,528 INFO L129 PetriNetUnfolder]: 291/821 cut-off events. [2021-03-25 12:16:10,528 INFO L130 PetriNetUnfolder]: For 64623/64646 co-relation queries the response was YES. [2021-03-25 12:16:10,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12331 conditions, 821 events. 291/821 cut-off events. For 64623/64646 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6079 event pairs, 39 based on Foata normal form. 8/826 useless extension candidates. Maximal degree in co-relation 12111. Up to 642 conditions per place. [2021-03-25 12:16:10,542 INFO L132 encePairwiseOnDemand]: 89/100 looper letters, 415 selfloop transitions, 38 changer transitions 6/467 dead transitions. [2021-03-25 12:16:10,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 467 transitions, 13354 flow [2021-03-25 12:16:10,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:10,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 327 transitions. [2021-03-25 12:16:10,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2972727272727273 [2021-03-25 12:16:10,543 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 327 transitions. [2021-03-25 12:16:10,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 327 transitions. [2021-03-25 12:16:10,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:10,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 327 transitions. [2021-03-25 12:16:10,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.727272727272727) internal successors, (327), 11 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:10,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:10,544 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:10,545 INFO L185 Difference]: Start difference. First operand has 507 places, 463 transitions, 12359 flow. Second operand 11 states and 327 transitions. [2021-03-25 12:16:10,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 467 transitions, 13354 flow [2021-03-25 12:16:10,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 467 transitions, 13207 flow, removed 27 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:10,970 INFO L241 Difference]: Finished difference. Result has 509 places, 459 transitions, 12227 flow [2021-03-25 12:16:10,971 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12214, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12227, PETRI_PLACES=509, PETRI_TRANSITIONS=459} [2021-03-25 12:16:10,971 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:16:10,971 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:10,971 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 459 transitions, 12227 flow [2021-03-25 12:16:10,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 459 transitions, 12227 flow [2021-03-25 12:16:10,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 459 transitions, 12227 flow [2021-03-25 12:16:11,107 INFO L129 PetriNetUnfolder]: 250/750 cut-off events. [2021-03-25 12:16:11,107 INFO L130 PetriNetUnfolder]: For 57347/57436 co-relation queries the response was YES. [2021-03-25 12:16:11,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10840 conditions, 750 events. 250/750 cut-off events. For 57347/57436 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5748 event pairs, 20 based on Foata normal form. 20/768 useless extension candidates. Maximal degree in co-relation 10638. Up to 242 conditions per place. [2021-03-25 12:16:11,124 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:16:11,148 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:11,148 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:11,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-25 12:16:11,148 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 459 transitions, 12227 flow [2021-03-25 12:16:11,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:11,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:11,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:11,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-03-25 12:16:11,149 INFO L428 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:11,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1292002581, now seen corresponding path program 9 times [2021-03-25 12:16:11,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:11,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528838609] [2021-03-25 12:16:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:11,157 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:11,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:11,162 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:11,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:11,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:11,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:11,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:11,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:11,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:11,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:11,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:11,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:11,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:11,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:11,223 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:11,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:11,237 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:11,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:11,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:11,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528838609] [2021-03-25 12:16:11,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:11,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:11,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451115877] [2021-03-25 12:16:11,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:11,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:11,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:11,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:11,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:11,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 459 transitions, 12227 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:11,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:11,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:11,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:11,693 INFO L129 PetriNetUnfolder]: 290/806 cut-off events. [2021-03-25 12:16:11,693 INFO L130 PetriNetUnfolder]: For 63049/63072 co-relation queries the response was YES. [2021-03-25 12:16:11,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12193 conditions, 806 events. 290/806 cut-off events. For 63049/63072 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5916 event pairs, 34 based on Foata normal form. 10/814 useless extension candidates. Maximal degree in co-relation 11988. Up to 626 conditions per place. [2021-03-25 12:16:11,706 INFO L132 encePairwiseOnDemand]: 87/100 looper letters, 371 selfloop transitions, 77 changer transitions 4/460 dead transitions. [2021-03-25 12:16:11,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 460 transitions, 13135 flow [2021-03-25 12:16:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:16:11,707 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.313 [2021-03-25 12:16:11,707 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:16:11,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:16:11,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:11,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:16:11,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:11,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:11,708 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:11,708 INFO L185 Difference]: Start difference. First operand has 508 places, 459 transitions, 12227 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:16:11,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 460 transitions, 13135 flow [2021-03-25 12:16:12,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 460 transitions, 13037 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-25 12:16:12,127 INFO L241 Difference]: Finished difference. Result has 507 places, 455 transitions, 12293 flow [2021-03-25 12:16:12,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12129, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12293, PETRI_PLACES=507, PETRI_TRANSITIONS=455} [2021-03-25 12:16:12,128 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 460 predicate places. [2021-03-25 12:16:12,128 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:12,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 455 transitions, 12293 flow [2021-03-25 12:16:12,128 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 455 transitions, 12293 flow [2021-03-25 12:16:12,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 502 places, 455 transitions, 12293 flow [2021-03-25 12:16:12,253 INFO L129 PetriNetUnfolder]: 247/731 cut-off events. [2021-03-25 12:16:12,253 INFO L130 PetriNetUnfolder]: For 56927/57024 co-relation queries the response was YES. [2021-03-25 12:16:12,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10757 conditions, 731 events. 247/731 cut-off events. For 56927/57024 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5528 event pairs, 22 based on Foata normal form. 23/753 useless extension candidates. Maximal degree in co-relation 10543. Up to 236 conditions per place. [2021-03-25 12:16:12,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:12,292 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:12,292 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:12,292 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 164 [2021-03-25 12:16:12,292 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 455 transitions, 12293 flow [2021-03-25 12:16:12,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:12,292 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:12,292 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:12,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-03-25 12:16:12,292 INFO L428 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:12,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:12,293 INFO L82 PathProgramCache]: Analyzing trace with hash 24154723, now seen corresponding path program 10 times [2021-03-25 12:16:12,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:12,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73362952] [2021-03-25 12:16:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:12,300 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:12,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:12,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:12,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:12,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:12,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:12,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:12,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:12,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:12,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:12,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:12,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:12,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:12,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:12,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:12,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:12,385 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:12,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:12,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73362952] [2021-03-25 12:16:12,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:12,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:12,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056955007] [2021-03-25 12:16:12,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:12,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:12,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:12,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:12,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:12,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 455 transitions, 12293 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:12,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:12,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:12,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:12,852 INFO L129 PetriNetUnfolder]: 289/803 cut-off events. [2021-03-25 12:16:12,852 INFO L130 PetriNetUnfolder]: For 64117/64132 co-relation queries the response was YES. [2021-03-25 12:16:12,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12241 conditions, 803 events. 289/803 cut-off events. For 64117/64132 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5878 event pairs, 37 based on Foata normal form. 8/809 useless extension candidates. Maximal degree in co-relation 12023. Up to 609 conditions per place. [2021-03-25 12:16:12,866 INFO L132 encePairwiseOnDemand]: 85/100 looper letters, 351 selfloop transitions, 94 changer transitions 5/458 dead transitions. [2021-03-25 12:16:12,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 458 transitions, 13294 flow [2021-03-25 12:16:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:12,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:12,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:16:12,867 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.315 [2021-03-25 12:16:12,867 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:16:12,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:16:12,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:12,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:16:12,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:12,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:12,868 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:12,868 INFO L185 Difference]: Start difference. First operand has 502 places, 455 transitions, 12293 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:16:12,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 458 transitions, 13294 flow [2021-03-25 12:16:13,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 458 transitions, 13011 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:13,300 INFO L241 Difference]: Finished difference. Result has 501 places, 451 transitions, 12252 flow [2021-03-25 12:16:13,300 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=12012, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12252, PETRI_PLACES=501, PETRI_TRANSITIONS=451} [2021-03-25 12:16:13,300 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 454 predicate places. [2021-03-25 12:16:13,300 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:13,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 501 places, 451 transitions, 12252 flow [2021-03-25 12:16:13,300 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 501 places, 451 transitions, 12252 flow [2021-03-25 12:16:13,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 499 places, 451 transitions, 12252 flow [2021-03-25 12:16:13,428 INFO L129 PetriNetUnfolder]: 249/734 cut-off events. [2021-03-25 12:16:13,428 INFO L130 PetriNetUnfolder]: For 57573/57680 co-relation queries the response was YES. [2021-03-25 12:16:13,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10853 conditions, 734 events. 249/734 cut-off events. For 57573/57680 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5541 event pairs, 21 based on Foata normal form. 17/749 useless extension candidates. Maximal degree in co-relation 10637. Up to 242 conditions per place. [2021-03-25 12:16:13,444 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:13,467 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:13,467 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:13,467 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-25 12:16:13,470 INFO L480 AbstractCegarLoop]: Abstraction has has 499 places, 451 transitions, 12252 flow [2021-03-25 12:16:13,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:13,470 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:13,470 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:13,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-03-25 12:16:13,470 INFO L428 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:13,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:13,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1736907395, now seen corresponding path program 11 times [2021-03-25 12:16:13,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:13,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750900330] [2021-03-25 12:16:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:13,477 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:13,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:13,482 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:13,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:13,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:13,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:13,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:13,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:13,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:13,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:13,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:13,531 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:13,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:13,544 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:13,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:13,558 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:13,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:13,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:13,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750900330] [2021-03-25 12:16:13,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:13,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:13,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459595542] [2021-03-25 12:16:13,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:13,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:13,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:13,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:13,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:13,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 451 transitions, 12252 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:13,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:13,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:13,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:13,977 INFO L129 PetriNetUnfolder]: 288/802 cut-off events. [2021-03-25 12:16:13,977 INFO L130 PetriNetUnfolder]: For 64360/64408 co-relation queries the response was YES. [2021-03-25 12:16:13,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12247 conditions, 802 events. 288/802 cut-off events. For 64360/64408 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5850 event pairs, 39 based on Foata normal form. 9/807 useless extension candidates. Maximal degree in co-relation 12027. Up to 639 conditions per place. [2021-03-25 12:16:13,991 INFO L132 encePairwiseOnDemand]: 89/100 looper letters, 407 selfloop transitions, 31 changer transitions 8/454 dead transitions. [2021-03-25 12:16:13,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 454 transitions, 13217 flow [2021-03-25 12:16:13,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 354 transitions. [2021-03-25 12:16:13,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.295 [2021-03-25 12:16:13,992 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 354 transitions. [2021-03-25 12:16:13,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 354 transitions. [2021-03-25 12:16:13,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:13,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 354 transitions. [2021-03-25 12:16:13,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:13,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:13,993 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 100.0) internal successors, (1300), 13 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:13,993 INFO L185 Difference]: Start difference. First operand has 499 places, 451 transitions, 12252 flow. Second operand 12 states and 354 transitions. [2021-03-25 12:16:13,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 454 transitions, 13217 flow [2021-03-25 12:16:14,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 454 transitions, 12849 flow, removed 9 selfloop flow, removed 17 redundant places. [2021-03-25 12:16:14,389 INFO L241 Difference]: Finished difference. Result has 495 places, 445 transitions, 11854 flow [2021-03-25 12:16:14,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=11884, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11854, PETRI_PLACES=495, PETRI_TRANSITIONS=445} [2021-03-25 12:16:14,390 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 448 predicate places. [2021-03-25 12:16:14,390 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:14,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 495 places, 445 transitions, 11854 flow [2021-03-25 12:16:14,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 495 places, 445 transitions, 11854 flow [2021-03-25 12:16:14,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 493 places, 445 transitions, 11854 flow [2021-03-25 12:16:14,512 INFO L129 PetriNetUnfolder]: 247/728 cut-off events. [2021-03-25 12:16:14,512 INFO L130 PetriNetUnfolder]: For 54914/55005 co-relation queries the response was YES. [2021-03-25 12:16:14,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10530 conditions, 728 events. 247/728 cut-off events. For 54914/55005 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5497 event pairs, 21 based on Foata normal form. 15/740 useless extension candidates. Maximal degree in co-relation 10337. Up to 242 conditions per place. [2021-03-25 12:16:14,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:14,556 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:14,556 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:14,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-25 12:16:14,556 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 445 transitions, 11854 flow [2021-03-25 12:16:14,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:14,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:14,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:14,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-03-25 12:16:14,557 INFO L428 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:14,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:14,557 INFO L82 PathProgramCache]: Analyzing trace with hash 580893099, now seen corresponding path program 12 times [2021-03-25 12:16:14,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:14,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830512005] [2021-03-25 12:16:14,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:14,564 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:14,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:14,569 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:14,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:14,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:14,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:14,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:14,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:14,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:14,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:14,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:14,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:14,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:14,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:14,637 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:14,651 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:14,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830512005] [2021-03-25 12:16:14,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:14,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:14,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082511350] [2021-03-25 12:16:14,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:14,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:14,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:14,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:14,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:14,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 445 transitions, 11854 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:14,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:14,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:14,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:15,100 INFO L129 PetriNetUnfolder]: 286/792 cut-off events. [2021-03-25 12:16:15,100 INFO L130 PetriNetUnfolder]: For 61125/61148 co-relation queries the response was YES. [2021-03-25 12:16:15,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11873 conditions, 792 events. 286/792 cut-off events. For 61125/61148 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5735 event pairs, 37 based on Foata normal form. 10/800 useless extension candidates. Maximal degree in co-relation 11675. Up to 597 conditions per place. [2021-03-25 12:16:15,112 INFO L132 encePairwiseOnDemand]: 85/100 looper letters, 340 selfloop transitions, 93 changer transitions 6/447 dead transitions. [2021-03-25 12:16:15,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 447 transitions, 12824 flow [2021-03-25 12:16:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:16:15,113 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3109090909090909 [2021-03-25 12:16:15,114 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:16:15,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:16:15,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:15,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:16:15,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:15,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:15,114 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 100.0) internal successors, (1200), 12 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:15,115 INFO L185 Difference]: Start difference. First operand has 493 places, 445 transitions, 11854 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:16:15,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 447 transitions, 12824 flow [2021-03-25 12:16:15,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 447 transitions, 12719 flow, removed 5 selfloop flow, removed 15 redundant places. [2021-03-25 12:16:15,502 INFO L241 Difference]: Finished difference. Result has 489 places, 439 transitions, 11914 flow [2021-03-25 12:16:15,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=11749, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11914, PETRI_PLACES=489, PETRI_TRANSITIONS=439} [2021-03-25 12:16:15,502 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 442 predicate places. [2021-03-25 12:16:15,502 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:15,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 489 places, 439 transitions, 11914 flow [2021-03-25 12:16:15,502 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 489 places, 439 transitions, 11914 flow [2021-03-25 12:16:15,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 486 places, 439 transitions, 11914 flow [2021-03-25 12:16:15,622 INFO L129 PetriNetUnfolder]: 246/720 cut-off events. [2021-03-25 12:16:15,622 INFO L130 PetriNetUnfolder]: For 55559/55652 co-relation queries the response was YES. [2021-03-25 12:16:15,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10566 conditions, 720 events. 246/720 cut-off events. For 55559/55652 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5390 event pairs, 20 based on Foata normal form. 17/735 useless extension candidates. Maximal degree in co-relation 10362. Up to 242 conditions per place. [2021-03-25 12:16:15,637 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:16:15,659 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:15,660 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:15,660 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-03-25 12:16:15,660 INFO L480 AbstractCegarLoop]: Abstraction has has 486 places, 439 transitions, 11914 flow [2021-03-25 12:16:15,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:15,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:15,660 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:15,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-25 12:16:15,660 INFO L428 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:15,660 INFO L82 PathProgramCache]: Analyzing trace with hash 530693899, now seen corresponding path program 13 times [2021-03-25 12:16:15,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064321372] [2021-03-25 12:16:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:15,666 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:15,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:15,670 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:15,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:15,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:15,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:15,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:15,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:15,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:15,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:15,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:15,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:15,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:15,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:15,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:15,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:15,733 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:15,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:15,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:15,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064321372] [2021-03-25 12:16:15,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:15,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:15,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806465035] [2021-03-25 12:16:15,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:15,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:15,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:15,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:15,736 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 100 [2021-03-25 12:16:15,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 439 transitions, 11914 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:15,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:15,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 100 [2021-03-25 12:16:15,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:16,174 INFO L129 PetriNetUnfolder]: 285/785 cut-off events. [2021-03-25 12:16:16,174 INFO L130 PetriNetUnfolder]: For 62176/62199 co-relation queries the response was YES. [2021-03-25 12:16:16,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11932 conditions, 785 events. 285/785 cut-off events. For 62176/62199 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5689 event pairs, 35 based on Foata normal form. 10/793 useless extension candidates. Maximal degree in co-relation 11724. Up to 594 conditions per place. [2021-03-25 12:16:16,187 INFO L132 encePairwiseOnDemand]: 87/100 looper letters, 339 selfloop transitions, 92 changer transitions 5/444 dead transitions. [2021-03-25 12:16:16,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 444 transitions, 12941 flow [2021-03-25 12:16:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:16,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 319 transitions. [2021-03-25 12:16:16,188 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.319 [2021-03-25 12:16:16,188 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 319 transitions. [2021-03-25 12:16:16,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 319 transitions. [2021-03-25 12:16:16,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:16,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 319 transitions. [2021-03-25 12:16:16,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.9) internal successors, (319), 10 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:16,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:16,189 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:16,189 INFO L185 Difference]: Start difference. First operand has 486 places, 439 transitions, 11914 flow. Second operand 10 states and 319 transitions. [2021-03-25 12:16:16,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 444 transitions, 12941 flow [2021-03-25 12:16:16,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 444 transitions, 12654 flow, removed 5 selfloop flow, removed 17 redundant places. [2021-03-25 12:16:16,583 INFO L241 Difference]: Finished difference. Result has 480 places, 435 transitions, 11812 flow [2021-03-25 12:16:16,583 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=11627, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11812, PETRI_PLACES=480, PETRI_TRANSITIONS=435} [2021-03-25 12:16:16,583 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 433 predicate places. [2021-03-25 12:16:16,583 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:16,583 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 435 transitions, 11812 flow [2021-03-25 12:16:16,583 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 435 transitions, 11812 flow [2021-03-25 12:16:16,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 435 transitions, 11812 flow [2021-03-25 12:16:16,707 INFO L129 PetriNetUnfolder]: 246/717 cut-off events. [2021-03-25 12:16:16,707 INFO L130 PetriNetUnfolder]: For 55444/55533 co-relation queries the response was YES. [2021-03-25 12:16:16,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10490 conditions, 717 events. 246/717 cut-off events. For 55444/55533 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5350 event pairs, 26 based on Foata normal form. 20/735 useless extension candidates. Maximal degree in co-relation 10287. Up to 243 conditions per place. [2021-03-25 12:16:16,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 498 [2021-03-25 12:16:16,803 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:16,803 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:16:16,803 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 220 [2021-03-25 12:16:16,803 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 434 transitions, 11804 flow [2021-03-25 12:16:16,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:16,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:16,804 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:16,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-03-25 12:16:16,804 INFO L428 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:16,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:16,804 INFO L82 PathProgramCache]: Analyzing trace with hash 2090512571, now seen corresponding path program 14 times [2021-03-25 12:16:16,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:16,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356272996] [2021-03-25 12:16:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:16,809 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:16,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:16,814 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:16,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:16,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:16,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:16,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:16,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:16,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:16,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:16,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:16,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:16,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:16,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:16,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:16,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:16,887 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:16,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:16,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356272996] [2021-03-25 12:16:16,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:16,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:16,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271898008] [2021-03-25 12:16:16,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:16,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:16,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:16,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:16,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:16,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 434 transitions, 11804 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:16,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:16,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:16,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:17,345 INFO L129 PetriNetUnfolder]: 285/777 cut-off events. [2021-03-25 12:16:17,345 INFO L130 PetriNetUnfolder]: For 60596/60619 co-relation queries the response was YES. [2021-03-25 12:16:17,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11810 conditions, 777 events. 285/777 cut-off events. For 60596/60619 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5566 event pairs, 37 based on Foata normal form. 10/785 useless extension candidates. Maximal degree in co-relation 11603. Up to 621 conditions per place. [2021-03-25 12:16:17,357 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 396 selfloop transitions, 30 changer transitions 5/439 dead transitions. [2021-03-25 12:16:17,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 439 transitions, 12755 flow [2021-03-25 12:16:17,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:16:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:16:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 383 transitions. [2021-03-25 12:16:17,359 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2916984006092917 [2021-03-25 12:16:17,359 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 383 transitions. [2021-03-25 12:16:17,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 383 transitions. [2021-03-25 12:16:17,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:17,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 383 transitions. [2021-03-25 12:16:17,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.46153846153846) internal successors, (383), 13 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:17,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:17,360 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:17,360 INFO L185 Difference]: Start difference. First operand has 477 places, 434 transitions, 11804 flow. Second operand 13 states and 383 transitions. [2021-03-25 12:16:17,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 439 transitions, 12755 flow [2021-03-25 12:16:17,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 439 transitions, 12335 flow, removed 18 selfloop flow, removed 20 redundant places. [2021-03-25 12:16:17,739 INFO L241 Difference]: Finished difference. Result has 471 places, 431 transitions, 11346 flow [2021-03-25 12:16:17,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11384, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11346, PETRI_PLACES=471, PETRI_TRANSITIONS=431} [2021-03-25 12:16:17,740 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 424 predicate places. [2021-03-25 12:16:17,740 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:17,740 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 431 transitions, 11346 flow [2021-03-25 12:16:17,740 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 431 transitions, 11346 flow [2021-03-25 12:16:17,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 465 places, 431 transitions, 11346 flow [2021-03-25 12:16:17,863 INFO L129 PetriNetUnfolder]: 255/731 cut-off events. [2021-03-25 12:16:17,863 INFO L130 PetriNetUnfolder]: For 53042/53145 co-relation queries the response was YES. [2021-03-25 12:16:17,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10322 conditions, 731 events. 255/731 cut-off events. For 53042/53145 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5438 event pairs, 21 based on Foata normal form. 14/743 useless extension candidates. Maximal degree in co-relation 10142. Up to 250 conditions per place. [2021-03-25 12:16:17,879 INFO L142 LiptonReduction]: Number of co-enabled transitions 490 [2021-03-25 12:16:17,902 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:17,903 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:17,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-03-25 12:16:17,903 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 431 transitions, 11346 flow [2021-03-25 12:16:17,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:17,903 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:17,903 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:17,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-03-25 12:16:17,903 INFO L428 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:17,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:17,903 INFO L82 PathProgramCache]: Analyzing trace with hash -890946433, now seen corresponding path program 1 times [2021-03-25 12:16:17,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:17,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082467718] [2021-03-25 12:16:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:17,916 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:17,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:17,921 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:17,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:17,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:17,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:17,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:17,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:17,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:17,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:17,958 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:16:17,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:16:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:17,991 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:16:17,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:16:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:17,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082467718] [2021-03-25 12:16:17,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:17,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:17,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85939473] [2021-03-25 12:16:17,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:17,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:17,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:17,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:17,994 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:17,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 431 transitions, 11346 flow. Second operand has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:17,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:17,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:17,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:18,366 INFO L129 PetriNetUnfolder]: 285/768 cut-off events. [2021-03-25 12:16:18,366 INFO L130 PetriNetUnfolder]: For 55957/55986 co-relation queries the response was YES. [2021-03-25 12:16:18,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11319 conditions, 768 events. 285/768 cut-off events. For 55957/55986 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5452 event pairs, 35 based on Foata normal form. 16/782 useless extension candidates. Maximal degree in co-relation 11138. Up to 618 conditions per place. [2021-03-25 12:16:18,378 INFO L132 encePairwiseOnDemand]: 87/101 looper letters, 390 selfloop transitions, 30 changer transitions 4/432 dead transitions. [2021-03-25 12:16:18,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 432 transitions, 12198 flow [2021-03-25 12:16:18,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:18,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:18,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2021-03-25 12:16:18,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.299009900990099 [2021-03-25 12:16:18,380 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 302 transitions. [2021-03-25 12:16:18,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 302 transitions. [2021-03-25 12:16:18,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:18,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 302 transitions. [2021-03-25 12:16:18,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.2) internal successors, (302), 10 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:18,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:18,381 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:18,381 INFO L185 Difference]: Start difference. First operand has 465 places, 431 transitions, 11346 flow. Second operand 10 states and 302 transitions. [2021-03-25 12:16:18,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 432 transitions, 12198 flow [2021-03-25 12:16:18,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 432 transitions, 12089 flow, removed 17 selfloop flow, removed 16 redundant places. [2021-03-25 12:16:18,744 INFO L241 Difference]: Finished difference. Result has 459 places, 427 transitions, 11249 flow [2021-03-25 12:16:18,744 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11237, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11249, PETRI_PLACES=459, PETRI_TRANSITIONS=427} [2021-03-25 12:16:18,744 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 412 predicate places. [2021-03-25 12:16:18,744 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:18,744 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 427 transitions, 11249 flow [2021-03-25 12:16:18,745 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 427 transitions, 11249 flow [2021-03-25 12:16:18,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 427 transitions, 11249 flow [2021-03-25 12:16:18,852 INFO L129 PetriNetUnfolder]: 246/694 cut-off events. [2021-03-25 12:16:18,852 INFO L130 PetriNetUnfolder]: For 49920/50011 co-relation queries the response was YES. [2021-03-25 12:16:18,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9880 conditions, 694 events. 246/694 cut-off events. For 49920/50011 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5097 event pairs, 21 based on Foata normal form. 15/707 useless extension candidates. Maximal degree in co-relation 9688. Up to 238 conditions per place. [2021-03-25 12:16:18,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:18,886 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:18,886 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:18,886 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-25 12:16:18,887 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 427 transitions, 11249 flow [2021-03-25 12:16:18,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:18,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:18,887 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:18,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-03-25 12:16:18,887 INFO L428 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:18,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:18,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1612256439, now seen corresponding path program 15 times [2021-03-25 12:16:18,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:18,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183043972] [2021-03-25 12:16:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:18,893 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:18,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:18,897 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:18,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:18,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:18,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:18,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:18,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:18,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:18,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:18,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:18,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:18,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:18,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:18,947 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:18,950 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:18,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:18,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183043972] [2021-03-25 12:16:18,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:18,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:18,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617606365] [2021-03-25 12:16:18,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:18,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:18,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:18,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:18,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:18,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 427 transitions, 11249 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:18,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:18,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:18,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:19,329 INFO L129 PetriNetUnfolder]: 286/767 cut-off events. [2021-03-25 12:16:19,329 INFO L130 PetriNetUnfolder]: For 55094/55117 co-relation queries the response was YES. [2021-03-25 12:16:19,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11283 conditions, 767 events. 286/767 cut-off events. For 55094/55117 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5436 event pairs, 40 based on Foata normal form. 8/772 useless extension candidates. Maximal degree in co-relation 11087. Up to 617 conditions per place. [2021-03-25 12:16:19,341 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 379 selfloop transitions, 42 changer transitions 2/431 dead transitions. [2021-03-25 12:16:19,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 431 transitions, 12252 flow [2021-03-25 12:16:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:16:19,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30594059405940593 [2021-03-25 12:16:19,342 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:16:19,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:16:19,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:19,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:16:19,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:19,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:19,343 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:19,343 INFO L185 Difference]: Start difference. First operand has 454 places, 427 transitions, 11249 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:16:19,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 431 transitions, 12252 flow [2021-03-25 12:16:19,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 431 transitions, 12165 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:19,655 INFO L241 Difference]: Finished difference. Result has 454 places, 428 transitions, 11341 flow [2021-03-25 12:16:19,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11162, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11341, PETRI_PLACES=454, PETRI_TRANSITIONS=428} [2021-03-25 12:16:19,656 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 407 predicate places. [2021-03-25 12:16:19,656 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:19,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 454 places, 428 transitions, 11341 flow [2021-03-25 12:16:19,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 454 places, 428 transitions, 11341 flow [2021-03-25 12:16:19,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 428 transitions, 11341 flow [2021-03-25 12:16:19,761 INFO L129 PetriNetUnfolder]: 246/695 cut-off events. [2021-03-25 12:16:19,761 INFO L130 PetriNetUnfolder]: For 51157/51246 co-relation queries the response was YES. [2021-03-25 12:16:19,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9946 conditions, 695 events. 246/695 cut-off events. For 51157/51246 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5138 event pairs, 21 based on Foata normal form. 20/714 useless extension candidates. Maximal degree in co-relation 9754. Up to 239 conditions per place. [2021-03-25 12:16:19,773 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:19,794 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:19,794 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:19,794 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 138 [2021-03-25 12:16:19,795 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 428 transitions, 11341 flow [2021-03-25 12:16:19,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:19,795 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:19,795 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:19,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-03-25 12:16:19,795 INFO L428 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:19,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:19,795 INFO L82 PathProgramCache]: Analyzing trace with hash -521058557, now seen corresponding path program 16 times [2021-03-25 12:16:19,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:19,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486395279] [2021-03-25 12:16:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:19,801 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:19,805 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:19,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:19,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:19,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:19,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:19,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:19,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:19,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:19,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:19,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:19,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:19,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:19,865 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:19,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:19,869 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:19,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:19,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:19,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486395279] [2021-03-25 12:16:19,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:19,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:19,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320326666] [2021-03-25 12:16:19,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:19,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:19,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:19,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:19,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:19,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 428 transitions, 11341 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:19,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:19,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:19,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:20,307 INFO L129 PetriNetUnfolder]: 289/768 cut-off events. [2021-03-25 12:16:20,308 INFO L130 PetriNetUnfolder]: For 56581/56604 co-relation queries the response was YES. [2021-03-25 12:16:20,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11408 conditions, 768 events. 289/768 cut-off events. For 56581/56604 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5439 event pairs, 40 based on Foata normal form. 8/773 useless extension candidates. Maximal degree in co-relation 11212. Up to 617 conditions per place. [2021-03-25 12:16:20,318 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 376 selfloop transitions, 50 changer transitions 3/437 dead transitions. [2021-03-25 12:16:20,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 437 transitions, 12474 flow [2021-03-25 12:16:20,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2021-03-25 12:16:20,319 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30033003300330036 [2021-03-25 12:16:20,319 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 364 transitions. [2021-03-25 12:16:20,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 364 transitions. [2021-03-25 12:16:20,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:20,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 364 transitions. [2021-03-25 12:16:20,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:20,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 101.0) internal successors, (1313), 13 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:20,320 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 101.0) internal successors, (1313), 13 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:20,320 INFO L185 Difference]: Start difference. First operand has 454 places, 428 transitions, 11341 flow. Second operand 12 states and 364 transitions. [2021-03-25 12:16:20,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 437 transitions, 12474 flow [2021-03-25 12:16:20,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 437 transitions, 12306 flow, removed 23 selfloop flow, removed 7 redundant places. [2021-03-25 12:16:20,623 INFO L241 Difference]: Finished difference. Result has 463 places, 433 transitions, 11478 flow [2021-03-25 12:16:20,623 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11177, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11478, PETRI_PLACES=463, PETRI_TRANSITIONS=433} [2021-03-25 12:16:20,623 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 416 predicate places. [2021-03-25 12:16:20,623 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:20,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 433 transitions, 11478 flow [2021-03-25 12:16:20,624 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 433 transitions, 11478 flow [2021-03-25 12:16:20,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 463 places, 433 transitions, 11478 flow [2021-03-25 12:16:20,737 INFO L129 PetriNetUnfolder]: 248/699 cut-off events. [2021-03-25 12:16:20,737 INFO L130 PetriNetUnfolder]: For 52013/52106 co-relation queries the response was YES. [2021-03-25 12:16:20,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10052 conditions, 699 events. 248/699 cut-off events. For 52013/52106 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5162 event pairs, 21 based on Foata normal form. 17/714 useless extension candidates. Maximal degree in co-relation 9857. Up to 243 conditions per place. [2021-03-25 12:16:20,752 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:20,774 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:20,774 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:20,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-25 12:16:20,774 INFO L480 AbstractCegarLoop]: Abstraction has has 463 places, 433 transitions, 11478 flow [2021-03-25 12:16:20,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:20,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:20,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:20,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-03-25 12:16:20,775 INFO L428 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:20,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:20,775 INFO L82 PathProgramCache]: Analyzing trace with hash 2021670211, now seen corresponding path program 17 times [2021-03-25 12:16:20,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:20,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634944758] [2021-03-25 12:16:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:20,781 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:20,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:20,785 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:20,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:20,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:20,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:20,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:20,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:20,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:20,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:20,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:20,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:20,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:20,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:20,844 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:20,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:20,857 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:20,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:20,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634944758] [2021-03-25 12:16:20,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:20,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:20,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789603705] [2021-03-25 12:16:20,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:20,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:20,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:20,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:20,860 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:20,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 433 transitions, 11478 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:20,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:20,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:20,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:21,226 INFO L129 PetriNetUnfolder]: 287/781 cut-off events. [2021-03-25 12:16:21,226 INFO L130 PetriNetUnfolder]: For 56402/56425 co-relation queries the response was YES. [2021-03-25 12:16:21,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11509 conditions, 781 events. 287/781 cut-off events. For 56402/56425 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5621 event pairs, 42 based on Foata normal form. 8/786 useless extension candidates. Maximal degree in co-relation 11310. Up to 623 conditions per place. [2021-03-25 12:16:21,238 INFO L132 encePairwiseOnDemand]: 90/101 looper letters, 401 selfloop transitions, 26 changer transitions 4/439 dead transitions. [2021-03-25 12:16:21,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 439 transitions, 12529 flow [2021-03-25 12:16:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:21,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 353 transitions. [2021-03-25 12:16:21,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29125412541254125 [2021-03-25 12:16:21,239 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 353 transitions. [2021-03-25 12:16:21,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 353 transitions. [2021-03-25 12:16:21,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:21,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 353 transitions. [2021-03-25 12:16:21,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.416666666666668) internal successors, (353), 12 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:21,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 101.0) internal successors, (1313), 13 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:21,240 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 101.0) internal successors, (1313), 13 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:21,240 INFO L185 Difference]: Start difference. First operand has 463 places, 433 transitions, 11478 flow. Second operand 12 states and 353 transitions. [2021-03-25 12:16:21,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 439 transitions, 12529 flow [2021-03-25 12:16:21,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 439 transitions, 12318 flow, removed 55 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:21,553 INFO L241 Difference]: Finished difference. Result has 467 places, 432 transitions, 11352 flow [2021-03-25 12:16:21,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11269, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11352, PETRI_PLACES=467, PETRI_TRANSITIONS=432} [2021-03-25 12:16:21,553 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 420 predicate places. [2021-03-25 12:16:21,553 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:21,553 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 432 transitions, 11352 flow [2021-03-25 12:16:21,553 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 432 transitions, 11352 flow [2021-03-25 12:16:21,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 466 places, 432 transitions, 11352 flow [2021-03-25 12:16:21,668 INFO L129 PetriNetUnfolder]: 246/703 cut-off events. [2021-03-25 12:16:21,668 INFO L130 PetriNetUnfolder]: For 52038/52144 co-relation queries the response was YES. [2021-03-25 12:16:21,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9979 conditions, 703 events. 246/703 cut-off events. For 52038/52144 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5188 event pairs, 31 based on Foata normal form. 17/715 useless extension candidates. Maximal degree in co-relation 9802. Up to 242 conditions per place. [2021-03-25 12:16:21,683 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:16:21,706 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:21,706 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:21,706 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 12:16:21,706 INFO L480 AbstractCegarLoop]: Abstraction has has 466 places, 432 transitions, 11352 flow [2021-03-25 12:16:21,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:21,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:21,706 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:21,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-03-25 12:16:21,706 INFO L428 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:21,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:21,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1612851085, now seen corresponding path program 18 times [2021-03-25 12:16:21,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:21,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673289983] [2021-03-25 12:16:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:21,712 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:21,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:21,716 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:21,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:21,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:21,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:21,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:21,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:21,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:21,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:21,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:21,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:21,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:21,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:21,767 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:21,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:21,780 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:21,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:21,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673289983] [2021-03-25 12:16:21,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:21,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:21,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546535027] [2021-03-25 12:16:21,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:21,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:21,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:21,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:21,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:21,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 432 transitions, 11352 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:21,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:21,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:21,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:22,199 INFO L129 PetriNetUnfolder]: 285/773 cut-off events. [2021-03-25 12:16:22,199 INFO L130 PetriNetUnfolder]: For 57459/57482 co-relation queries the response was YES. [2021-03-25 12:16:22,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11415 conditions, 773 events. 285/773 cut-off events. For 57459/57482 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5548 event pairs, 31 based on Foata normal form. 10/781 useless extension candidates. Maximal degree in co-relation 11235. Up to 600 conditions per place. [2021-03-25 12:16:22,210 INFO L132 encePairwiseOnDemand]: 88/101 looper letters, 355 selfloop transitions, 69 changer transitions 4/436 dead transitions. [2021-03-25 12:16:22,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 436 transitions, 12277 flow [2021-03-25 12:16:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:16:22,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30783078307830786 [2021-03-25 12:16:22,211 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:16:22,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:16:22,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:22,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:16:22,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:22,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 101.0) internal successors, (1212), 12 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:22,212 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 101.0) internal successors, (1212), 12 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:22,212 INFO L185 Difference]: Start difference. First operand has 466 places, 432 transitions, 11352 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:16:22,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 436 transitions, 12277 flow [2021-03-25 12:16:22,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 436 transitions, 12163 flow, removed 36 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:22,538 INFO L241 Difference]: Finished difference. Result has 470 places, 429 transitions, 11418 flow [2021-03-25 12:16:22,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11272, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11418, PETRI_PLACES=470, PETRI_TRANSITIONS=429} [2021-03-25 12:16:22,538 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 423 predicate places. [2021-03-25 12:16:22,538 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:22,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 429 transitions, 11418 flow [2021-03-25 12:16:22,538 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 429 transitions, 11418 flow [2021-03-25 12:16:22,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 468 places, 429 transitions, 11418 flow [2021-03-25 12:16:22,645 INFO L129 PetriNetUnfolder]: 245/701 cut-off events. [2021-03-25 12:16:22,645 INFO L130 PetriNetUnfolder]: For 52461/52554 co-relation queries the response was YES. [2021-03-25 12:16:22,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10089 conditions, 701 events. 245/701 cut-off events. For 52461/52554 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5197 event pairs, 22 based on Foata normal form. 17/716 useless extension candidates. Maximal degree in co-relation 9892. Up to 241 conditions per place. [2021-03-25 12:16:22,681 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:16:22,701 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:22,701 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:22,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-03-25 12:16:22,702 INFO L480 AbstractCegarLoop]: Abstraction has has 468 places, 429 transitions, 11418 flow [2021-03-25 12:16:22,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:22,702 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:22,702 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:22,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-03-25 12:16:22,702 INFO L428 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:22,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:22,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1413827909, now seen corresponding path program 19 times [2021-03-25 12:16:22,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:22,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535498115] [2021-03-25 12:16:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:22,708 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:22,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:22,712 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:22,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:22,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:22,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:22,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:22,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:22,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:22,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:22,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:22,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:22,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:22,770 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:22,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:22,784 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:22,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:22,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535498115] [2021-03-25 12:16:22,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:22,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:22,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128651872] [2021-03-25 12:16:22,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:22,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:22,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:22,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:22,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:22,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 429 transitions, 11418 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:22,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:22,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:22,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:23,139 INFO L129 PetriNetUnfolder]: 284/770 cut-off events. [2021-03-25 12:16:23,139 INFO L130 PetriNetUnfolder]: For 57482/57529 co-relation queries the response was YES. [2021-03-25 12:16:23,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11432 conditions, 770 events. 284/770 cut-off events. For 57482/57529 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5497 event pairs, 31 based on Foata normal form. 15/782 useless extension candidates. Maximal degree in co-relation 11231. Up to 618 conditions per place. [2021-03-25 12:16:23,150 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 395 selfloop transitions, 28 changer transitions 3/434 dead transitions. [2021-03-25 12:16:23,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 434 transitions, 12359 flow [2021-03-25 12:16:23,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:23,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 328 transitions. [2021-03-25 12:16:23,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2952295229522952 [2021-03-25 12:16:23,151 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 328 transitions. [2021-03-25 12:16:23,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 328 transitions. [2021-03-25 12:16:23,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:23,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 328 transitions. [2021-03-25 12:16:23,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.818181818181817) internal successors, (328), 11 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:23,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 101.0) internal successors, (1212), 12 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:23,152 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 101.0) internal successors, (1212), 12 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:23,152 INFO L185 Difference]: Start difference. First operand has 468 places, 429 transitions, 11418 flow. Second operand 11 states and 328 transitions. [2021-03-25 12:16:23,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 434 transitions, 12359 flow [2021-03-25 12:16:23,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 434 transitions, 12069 flow, removed 23 selfloop flow, removed 15 redundant places. [2021-03-25 12:16:23,477 INFO L241 Difference]: Finished difference. Result has 465 places, 428 transitions, 11193 flow [2021-03-25 12:16:23,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11130, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11193, PETRI_PLACES=465, PETRI_TRANSITIONS=428} [2021-03-25 12:16:23,477 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 418 predicate places. [2021-03-25 12:16:23,477 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:23,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 428 transitions, 11193 flow [2021-03-25 12:16:23,478 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 428 transitions, 11193 flow [2021-03-25 12:16:23,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 464 places, 428 transitions, 11193 flow [2021-03-25 12:16:23,584 INFO L129 PetriNetUnfolder]: 244/694 cut-off events. [2021-03-25 12:16:23,585 INFO L130 PetriNetUnfolder]: For 50764/50863 co-relation queries the response was YES. [2021-03-25 12:16:23,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9854 conditions, 694 events. 244/694 cut-off events. For 50764/50863 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5084 event pairs, 22 based on Foata normal form. 20/713 useless extension candidates. Maximal degree in co-relation 9660. Up to 239 conditions per place. [2021-03-25 12:16:23,597 INFO L142 LiptonReduction]: Number of co-enabled transitions 494 [2021-03-25 12:16:23,618 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:23,618 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:23,618 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 12:16:23,618 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 428 transitions, 11193 flow [2021-03-25 12:16:23,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:23,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:23,618 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:23,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-03-25 12:16:23,619 INFO L428 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:23,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash 506489731, now seen corresponding path program 20 times [2021-03-25 12:16:23,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:23,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214326344] [2021-03-25 12:16:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:23,624 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:23,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:23,629 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:23,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:23,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:23,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:23,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:23,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:23,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:23,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:23,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:23,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:23,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:23,675 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:23,687 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:23,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:23,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214326344] [2021-03-25 12:16:23,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:23,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:23,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979727663] [2021-03-25 12:16:23,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:23,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:23,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:23,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:23,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:23,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 428 transitions, 11193 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:23,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:23,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:23,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:24,012 INFO L129 PetriNetUnfolder]: 283/763 cut-off events. [2021-03-25 12:16:24,013 INFO L130 PetriNetUnfolder]: For 54866/54913 co-relation queries the response was YES. [2021-03-25 12:16:24,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11194 conditions, 763 events. 283/763 cut-off events. For 54866/54913 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5416 event pairs, 41 based on Foata normal form. 9/768 useless extension candidates. Maximal degree in co-relation 10996. Up to 626 conditions per place. [2021-03-25 12:16:24,024 INFO L132 encePairwiseOnDemand]: 90/101 looper letters, 400 selfloop transitions, 18 changer transitions 4/430 dead transitions. [2021-03-25 12:16:24,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 430 transitions, 12072 flow [2021-03-25 12:16:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 293 transitions. [2021-03-25 12:16:24,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2900990099009901 [2021-03-25 12:16:24,025 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 293 transitions. [2021-03-25 12:16:24,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 293 transitions. [2021-03-25 12:16:24,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:24,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 293 transitions. [2021-03-25 12:16:24,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.3) internal successors, (293), 10 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,026 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,026 INFO L185 Difference]: Start difference. First operand has 464 places, 428 transitions, 11193 flow. Second operand 10 states and 293 transitions. [2021-03-25 12:16:24,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 430 transitions, 12072 flow [2021-03-25 12:16:24,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 430 transitions, 11968 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-25 12:16:24,330 INFO L241 Difference]: Finished difference. Result has 461 places, 425 transitions, 11011 flow [2021-03-25 12:16:24,331 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=11089, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11011, PETRI_PLACES=461, PETRI_TRANSITIONS=425} [2021-03-25 12:16:24,331 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 414 predicate places. [2021-03-25 12:16:24,331 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:24,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 461 places, 425 transitions, 11011 flow [2021-03-25 12:16:24,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 461 places, 425 transitions, 11011 flow [2021-03-25 12:16:24,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 457 places, 425 transitions, 11011 flow [2021-03-25 12:16:24,440 INFO L129 PetriNetUnfolder]: 256/723 cut-off events. [2021-03-25 12:16:24,440 INFO L130 PetriNetUnfolder]: For 49989/49993 co-relation queries the response was YES. [2021-03-25 12:16:24,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10207 conditions, 723 events. 256/723 cut-off events. For 49989/49993 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5291 event pairs, 22 based on Foata normal form. 4/726 useless extension candidates. Maximal degree in co-relation 10034. Up to 254 conditions per place. [2021-03-25 12:16:24,453 INFO L142 LiptonReduction]: Number of co-enabled transitions 492 [2021-03-25 12:16:24,474 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:24,474 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:24,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-25 12:16:24,474 INFO L480 AbstractCegarLoop]: Abstraction has has 457 places, 425 transitions, 11011 flow [2021-03-25 12:16:24,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:24,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:24,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-03-25 12:16:24,474 INFO L428 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:24,475 INFO L82 PathProgramCache]: Analyzing trace with hash -521653203, now seen corresponding path program 21 times [2021-03-25 12:16:24,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:24,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249371743] [2021-03-25 12:16:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:24,480 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:24,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:24,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:24,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:24,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:24,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:24,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:24,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:24,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:24,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:24,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:24,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:24,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:24,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:24,543 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:24,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:24,557 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:24,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:24,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:24,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249371743] [2021-03-25 12:16:24,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:24,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:24,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904832075] [2021-03-25 12:16:24,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:24,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:24,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:24,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:24,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 101 [2021-03-25 12:16:24,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 425 transitions, 11011 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:24,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 101 [2021-03-25 12:16:24,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:24,981 INFO L129 PetriNetUnfolder]: 283/754 cut-off events. [2021-03-25 12:16:24,982 INFO L130 PetriNetUnfolder]: For 54076/54099 co-relation queries the response was YES. [2021-03-25 12:16:24,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11004 conditions, 754 events. 283/754 cut-off events. For 54076/54099 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5306 event pairs, 30 based on Foata normal form. 10/762 useless extension candidates. Maximal degree in co-relation 10831. Up to 590 conditions per place. [2021-03-25 12:16:24,993 INFO L132 encePairwiseOnDemand]: 88/101 looper letters, 349 selfloop transitions, 65 changer transitions 6/428 dead transitions. [2021-03-25 12:16:24,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 428 transitions, 11864 flow [2021-03-25 12:16:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:16:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:16:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 394 transitions. [2021-03-25 12:16:24,994 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3000761614623001 [2021-03-25 12:16:24,994 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 394 transitions. [2021-03-25 12:16:24,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 394 transitions. [2021-03-25 12:16:24,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:24,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 394 transitions. [2021-03-25 12:16:24,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.307692307692307) internal successors, (394), 13 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,995 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:24,995 INFO L185 Difference]: Start difference. First operand has 457 places, 425 transitions, 11011 flow. Second operand 13 states and 394 transitions. [2021-03-25 12:16:24,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 428 transitions, 11864 flow [2021-03-25 12:16:25,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 428 transitions, 11820 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:25,339 INFO L241 Difference]: Finished difference. Result has 460 places, 419 transitions, 10975 flow [2021-03-25 12:16:25,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=10967, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10975, PETRI_PLACES=460, PETRI_TRANSITIONS=419} [2021-03-25 12:16:25,339 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 413 predicate places. [2021-03-25 12:16:25,339 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:25,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 460 places, 419 transitions, 10975 flow [2021-03-25 12:16:25,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 460 places, 419 transitions, 10975 flow [2021-03-25 12:16:25,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 453 places, 419 transitions, 10975 flow [2021-03-25 12:16:25,447 INFO L129 PetriNetUnfolder]: 243/680 cut-off events. [2021-03-25 12:16:25,447 INFO L130 PetriNetUnfolder]: For 50292/50400 co-relation queries the response was YES. [2021-03-25 12:16:25,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9673 conditions, 680 events. 243/680 cut-off events. For 50292/50400 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4921 event pairs, 22 based on Foata normal form. 17/695 useless extension candidates. Maximal degree in co-relation 9483. Up to 238 conditions per place. [2021-03-25 12:16:25,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 486 [2021-03-25 12:16:25,563 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:25,563 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:16:25,563 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 224 [2021-03-25 12:16:25,563 INFO L480 AbstractCegarLoop]: Abstraction has has 453 places, 419 transitions, 10988 flow [2021-03-25 12:16:25,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:25,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:25,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:25,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-03-25 12:16:25,564 INFO L428 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:25,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash -653865149, now seen corresponding path program 22 times [2021-03-25 12:16:25,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:25,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999426497] [2021-03-25 12:16:25,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:25,569 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:25,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:25,574 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:25,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:25,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:25,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:25,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:25,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:25,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:25,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:25,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:25,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:25,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:25,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:25,632 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:25,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:25,646 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:25,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:25,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999426497] [2021-03-25 12:16:25,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:25,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:25,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671038049] [2021-03-25 12:16:25,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:25,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:25,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:25,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:25,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 103 [2021-03-25 12:16:25,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 419 transitions, 10988 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:25,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:25,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 103 [2021-03-25 12:16:25,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:26,078 INFO L129 PetriNetUnfolder]: 282/751 cut-off events. [2021-03-25 12:16:26,078 INFO L130 PetriNetUnfolder]: For 54484/54499 co-relation queries the response was YES. [2021-03-25 12:16:26,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10995 conditions, 751 events. 282/751 cut-off events. For 54484/54499 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5267 event pairs, 39 based on Foata normal form. 8/757 useless extension candidates. Maximal degree in co-relation 10801. Up to 585 conditions per place. [2021-03-25 12:16:26,089 INFO L132 encePairwiseOnDemand]: 89/103 looper letters, 343 selfloop transitions, 64 changer transitions 5/420 dead transitions. [2021-03-25 12:16:26,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 420 transitions, 11816 flow [2021-03-25 12:16:26,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 311 transitions. [2021-03-25 12:16:26,090 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30194174757281556 [2021-03-25 12:16:26,090 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 311 transitions. [2021-03-25 12:16:26,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 311 transitions. [2021-03-25 12:16:26,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:26,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 311 transitions. [2021-03-25 12:16:26,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.1) internal successors, (311), 10 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,092 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,092 INFO L185 Difference]: Start difference. First operand has 453 places, 419 transitions, 10988 flow. Second operand 10 states and 311 transitions. [2021-03-25 12:16:26,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 420 transitions, 11816 flow [2021-03-25 12:16:26,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 420 transitions, 11540 flow, removed 26 selfloop flow, removed 19 redundant places. [2021-03-25 12:16:26,409 INFO L241 Difference]: Finished difference. Result has 444 places, 414 transitions, 10823 flow [2021-03-25 12:16:26,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10712, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10823, PETRI_PLACES=444, PETRI_TRANSITIONS=414} [2021-03-25 12:16:26,409 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 397 predicate places. [2021-03-25 12:16:26,409 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:26,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 414 transitions, 10823 flow [2021-03-25 12:16:26,409 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 414 transitions, 10823 flow [2021-03-25 12:16:26,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 414 transitions, 10823 flow [2021-03-25 12:16:26,507 INFO L129 PetriNetUnfolder]: 239/663 cut-off events. [2021-03-25 12:16:26,508 INFO L130 PetriNetUnfolder]: For 46978/47094 co-relation queries the response was YES. [2021-03-25 12:16:26,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9345 conditions, 663 events. 239/663 cut-off events. For 46978/47094 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4767 event pairs, 31 based on Foata normal form. 21/680 useless extension candidates. Maximal degree in co-relation 9159. Up to 233 conditions per place. [2021-03-25 12:16:26,519 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 12:16:26,539 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:26,539 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:26,539 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-03-25 12:16:26,539 INFO L480 AbstractCegarLoop]: Abstraction has has 439 places, 414 transitions, 10823 flow [2021-03-25 12:16:26,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,539 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:26,539 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:26,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-03-25 12:16:26,540 INFO L428 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:26,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:26,540 INFO L82 PathProgramCache]: Analyzing trace with hash -966016040, now seen corresponding path program 1 times [2021-03-25 12:16:26,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:26,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459740702] [2021-03-25 12:16:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:26,545 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:26,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:26,550 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:26,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:26,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:26,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:26,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:26,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:26,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:26,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:26,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:26,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:26,587 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:26,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:26,599 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:26,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:26,603 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:26,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:26,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:26,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459740702] [2021-03-25 12:16:26,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:26,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:26,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918733628] [2021-03-25 12:16:26,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:26,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:26,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:26,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:26,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 103 [2021-03-25 12:16:26,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 414 transitions, 10823 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,606 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:26,606 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 103 [2021-03-25 12:16:26,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:26,964 INFO L129 PetriNetUnfolder]: 281/745 cut-off events. [2021-03-25 12:16:26,965 INFO L130 PetriNetUnfolder]: For 53290/53313 co-relation queries the response was YES. [2021-03-25 12:16:26,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10871 conditions, 745 events. 281/745 cut-off events. For 53290/53313 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5181 event pairs, 41 based on Foata normal form. 8/750 useless extension candidates. Maximal degree in co-relation 10681. Up to 595 conditions per place. [2021-03-25 12:16:26,975 INFO L132 encePairwiseOnDemand]: 90/103 looper letters, 348 selfloop transitions, 58 changer transitions 3/417 dead transitions. [2021-03-25 12:16:26,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 417 transitions, 11719 flow [2021-03-25 12:16:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:16:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:16:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 281 transitions. [2021-03-25 12:16:26,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30312837108953616 [2021-03-25 12:16:26,976 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 281 transitions. [2021-03-25 12:16:26,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 281 transitions. [2021-03-25 12:16:26,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:26,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 281 transitions. [2021-03-25 12:16:26,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,977 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:26,977 INFO L185 Difference]: Start difference. First operand has 439 places, 414 transitions, 10823 flow. Second operand 9 states and 281 transitions. [2021-03-25 12:16:26,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 417 transitions, 11719 flow [2021-03-25 12:16:27,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 417 transitions, 11456 flow, removed 6 selfloop flow, removed 15 redundant places. [2021-03-25 12:16:27,264 INFO L241 Difference]: Finished difference. Result has 434 places, 413 transitions, 10690 flow [2021-03-25 12:16:27,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10562, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10690, PETRI_PLACES=434, PETRI_TRANSITIONS=413} [2021-03-25 12:16:27,265 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 387 predicate places. [2021-03-25 12:16:27,265 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:27,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 413 transitions, 10690 flow [2021-03-25 12:16:27,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 413 transitions, 10690 flow [2021-03-25 12:16:27,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 413 transitions, 10690 flow [2021-03-25 12:16:27,372 INFO L129 PetriNetUnfolder]: 254/700 cut-off events. [2021-03-25 12:16:27,372 INFO L130 PetriNetUnfolder]: For 47871/47875 co-relation queries the response was YES. [2021-03-25 12:16:27,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9914 conditions, 700 events. 254/700 cut-off events. For 47871/47875 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5033 event pairs, 21 based on Foata normal form. 4/702 useless extension candidates. Maximal degree in co-relation 9729. Up to 252 conditions per place. [2021-03-25 12:16:27,386 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 12:16:27,406 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:27,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:27,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-03-25 12:16:27,407 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 413 transitions, 10690 flow [2021-03-25 12:16:27,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:27,407 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:27,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:27,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-03-25 12:16:27,407 INFO L428 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:27,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:27,407 INFO L82 PathProgramCache]: Analyzing trace with hash 98058581, now seen corresponding path program 1 times [2021-03-25 12:16:27,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:27,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654812196] [2021-03-25 12:16:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:27,424 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:27,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:27,429 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:27,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:27,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:27,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:27,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:27,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:27,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:27,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:27,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:27,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:27,472 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:27,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:27,484 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:27,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:27,488 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:27,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:27,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:27,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654812196] [2021-03-25 12:16:27,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:27,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:27,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748604797] [2021-03-25 12:16:27,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:27,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:27,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:27,490 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 103 [2021-03-25 12:16:27,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 413 transitions, 10690 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:27,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:27,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 103 [2021-03-25 12:16:27,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:27,842 INFO L129 PetriNetUnfolder]: 281/742 cut-off events. [2021-03-25 12:16:27,842 INFO L130 PetriNetUnfolder]: For 51997/52020 co-relation queries the response was YES. [2021-03-25 12:16:27,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10741 conditions, 742 events. 281/742 cut-off events. For 51997/52020 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5174 event pairs, 42 based on Foata normal form. 8/747 useless extension candidates. Maximal degree in co-relation 10552. Up to 599 conditions per place. [2021-03-25 12:16:27,852 INFO L132 encePairwiseOnDemand]: 90/103 looper letters, 361 selfloop transitions, 46 changer transitions 2/417 dead transitions. [2021-03-25 12:16:27,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 417 transitions, 11580 flow [2021-03-25 12:16:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:16:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:16:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 280 transitions. [2021-03-25 12:16:27,853 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30204962243797195 [2021-03-25 12:16:27,853 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 280 transitions. [2021-03-25 12:16:27,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 280 transitions. [2021-03-25 12:16:27,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:27,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 280 transitions. [2021-03-25 12:16:27,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.11111111111111) internal successors, (280), 9 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:27,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:27,854 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:27,854 INFO L185 Difference]: Start difference. First operand has 433 places, 413 transitions, 10690 flow. Second operand 9 states and 280 transitions. [2021-03-25 12:16:27,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 417 transitions, 11580 flow [2021-03-25 12:16:28,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 417 transitions, 11461 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-25 12:16:28,142 INFO L241 Difference]: Finished difference. Result has 437 places, 414 transitions, 10711 flow [2021-03-25 12:16:28,142 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10573, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10711, PETRI_PLACES=437, PETRI_TRANSITIONS=414} [2021-03-25 12:16:28,142 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 390 predicate places. [2021-03-25 12:16:28,142 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:28,142 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 414 transitions, 10711 flow [2021-03-25 12:16:28,143 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 414 transitions, 10711 flow [2021-03-25 12:16:28,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 414 transitions, 10711 flow [2021-03-25 12:16:28,246 INFO L129 PetriNetUnfolder]: 254/705 cut-off events. [2021-03-25 12:16:28,247 INFO L130 PetriNetUnfolder]: For 48088/48092 co-relation queries the response was YES. [2021-03-25 12:16:28,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9918 conditions, 705 events. 254/705 cut-off events. For 48088/48092 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5136 event pairs, 22 based on Foata normal form. 4/707 useless extension candidates. Maximal degree in co-relation 9732. Up to 251 conditions per place. [2021-03-25 12:16:28,259 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 12:16:28,279 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:28,279 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:28,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 12:16:28,279 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 414 transitions, 10711 flow [2021-03-25 12:16:28,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:28,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:28,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:28,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-03-25 12:16:28,280 INFO L428 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:28,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:28,280 INFO L82 PathProgramCache]: Analyzing trace with hash 545876371, now seen corresponding path program 23 times [2021-03-25 12:16:28,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:28,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563238434] [2021-03-25 12:16:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:28,285 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:28,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:28,290 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:28,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:28,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:28,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:28,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:28,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:28,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:28,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:28,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:28,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:28,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:28,336 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:28,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:28,349 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:28,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:28,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:28,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563238434] [2021-03-25 12:16:28,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:28,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:28,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673893651] [2021-03-25 12:16:28,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:28,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:28,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:28,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:28,354 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 103 [2021-03-25 12:16:28,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 414 transitions, 10711 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:28,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:28,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 103 [2021-03-25 12:16:28,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:28,662 INFO L129 PetriNetUnfolder]: 281/741 cut-off events. [2021-03-25 12:16:28,662 INFO L130 PetriNetUnfolder]: For 52746/52792 co-relation queries the response was YES. [2021-03-25 12:16:28,669 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10782 conditions, 741 events. 281/741 cut-off events. For 52746/52792 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5178 event pairs, 41 based on Foata normal form. 9/746 useless extension candidates. Maximal degree in co-relation 10592. Up to 613 conditions per place. [2021-03-25 12:16:28,672 INFO L132 encePairwiseOnDemand]: 92/103 looper letters, 389 selfloop transitions, 19 changer transitions 3/419 dead transitions. [2021-03-25 12:16:28,672 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 419 transitions, 11678 flow [2021-03-25 12:16:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:28,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2021-03-25 12:16:28,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28640776699029125 [2021-03-25 12:16:28,673 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 295 transitions. [2021-03-25 12:16:28,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 295 transitions. [2021-03-25 12:16:28,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:28,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 295 transitions. [2021-03-25 12:16:28,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.5) internal successors, (295), 10 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:28,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:28,674 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:28,674 INFO L185 Difference]: Start difference. First operand has 436 places, 414 transitions, 10711 flow. Second operand 10 states and 295 transitions. [2021-03-25 12:16:28,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 419 transitions, 11678 flow [2021-03-25 12:16:28,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 419 transitions, 11489 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:28,974 INFO L241 Difference]: Finished difference. Result has 439 places, 415 transitions, 10613 flow [2021-03-25 12:16:28,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10523, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10613, PETRI_PLACES=439, PETRI_TRANSITIONS=415} [2021-03-25 12:16:28,974 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 392 predicate places. [2021-03-25 12:16:28,974 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:28,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 415 transitions, 10613 flow [2021-03-25 12:16:28,974 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 415 transitions, 10613 flow [2021-03-25 12:16:28,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 415 transitions, 10613 flow [2021-03-25 12:16:29,075 INFO L129 PetriNetUnfolder]: 242/677 cut-off events. [2021-03-25 12:16:29,075 INFO L130 PetriNetUnfolder]: For 47545/47638 co-relation queries the response was YES. [2021-03-25 12:16:29,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9366 conditions, 677 events. 242/677 cut-off events. For 47545/47638 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 4910 event pairs, 26 based on Foata normal form. 17/692 useless extension candidates. Maximal degree in co-relation 9199. Up to 236 conditions per place. [2021-03-25 12:16:29,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 12:16:29,223 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:29,223 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:16:29,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-25 12:16:29,223 INFO L480 AbstractCegarLoop]: Abstraction has has 435 places, 414 transitions, 10602 flow [2021-03-25 12:16:29,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:29,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:29,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:29,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-03-25 12:16:29,223 INFO L428 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:29,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash -327864309, now seen corresponding path program 24 times [2021-03-25 12:16:29,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:29,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274524738] [2021-03-25 12:16:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:29,229 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:29,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:29,234 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:29,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:29,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:29,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:29,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:29,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:29,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:29,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:29,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:29,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:29,269 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:29,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:29,281 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:29,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:29,295 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:29,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:29,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274524738] [2021-03-25 12:16:29,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:29,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:29,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809309307] [2021-03-25 12:16:29,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:29,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:29,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:29,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:29,298 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:29,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 414 transitions, 10602 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:29,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:29,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:29,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:29,699 INFO L129 PetriNetUnfolder]: 280/748 cut-off events. [2021-03-25 12:16:29,699 INFO L130 PetriNetUnfolder]: For 51539/51562 co-relation queries the response was YES. [2021-03-25 12:16:29,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10695 conditions, 748 events. 280/748 cut-off events. For 51539/51562 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5277 event pairs, 42 based on Foata normal form. 8/753 useless extension candidates. Maximal degree in co-relation 10526. Up to 608 conditions per place. [2021-03-25 12:16:29,710 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 384 selfloop transitions, 20 changer transitions 5/417 dead transitions. [2021-03-25 12:16:29,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 417 transitions, 11492 flow [2021-03-25 12:16:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 325 transitions. [2021-03-25 12:16:29,711 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2813852813852814 [2021-03-25 12:16:29,711 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 325 transitions. [2021-03-25 12:16:29,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 325 transitions. [2021-03-25 12:16:29,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:29,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 325 transitions. [2021-03-25 12:16:29,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 11 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:29,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:29,712 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:29,712 INFO L185 Difference]: Start difference. First operand has 435 places, 414 transitions, 10602 flow. Second operand 11 states and 325 transitions. [2021-03-25 12:16:29,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 417 transitions, 11492 flow [2021-03-25 12:16:29,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 417 transitions, 11400 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:29,981 INFO L241 Difference]: Finished difference. Result has 439 places, 411 transitions, 10473 flow [2021-03-25 12:16:29,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10510, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10473, PETRI_PLACES=439, PETRI_TRANSITIONS=411} [2021-03-25 12:16:29,982 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 392 predicate places. [2021-03-25 12:16:29,982 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:29,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 411 transitions, 10473 flow [2021-03-25 12:16:29,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 411 transitions, 10473 flow [2021-03-25 12:16:29,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 437 places, 411 transitions, 10473 flow [2021-03-25 12:16:30,085 INFO L129 PetriNetUnfolder]: 253/704 cut-off events. [2021-03-25 12:16:30,085 INFO L130 PetriNetUnfolder]: For 47857/47861 co-relation queries the response was YES. [2021-03-25 12:16:30,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9802 conditions, 704 events. 253/704 cut-off events. For 47857/47861 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5112 event pairs, 26 based on Foata normal form. 4/706 useless extension candidates. Maximal degree in co-relation 9636. Up to 252 conditions per place. [2021-03-25 12:16:30,098 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 12:16:30,117 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:30,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:30,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 12:16:30,117 INFO L480 AbstractCegarLoop]: Abstraction has has 437 places, 411 transitions, 10473 flow [2021-03-25 12:16:30,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:30,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:30,118 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:30,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-03-25 12:16:30,118 INFO L428 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:30,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2025381652, now seen corresponding path program 2 times [2021-03-25 12:16:30,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:30,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835489171] [2021-03-25 12:16:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:30,123 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:30,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:30,128 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:30,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:30,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:30,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:30,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:30,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:30,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:30,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:30,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:30,165 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:30,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:30,177 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:30,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:30,190 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:30,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:30,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835489171] [2021-03-25 12:16:30,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:30,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:30,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150920828] [2021-03-25 12:16:30,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:30,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:30,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:30,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:30,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:30,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 411 transitions, 10473 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:30,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:30,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:30,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:30,575 INFO L129 PetriNetUnfolder]: 278/742 cut-off events. [2021-03-25 12:16:30,575 INFO L130 PetriNetUnfolder]: For 51274/51297 co-relation queries the response was YES. [2021-03-25 12:16:30,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10601 conditions, 742 events. 278/742 cut-off events. For 51274/51297 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5221 event pairs, 42 based on Foata normal form. 8/747 useless extension candidates. Maximal degree in co-relation 10433. Up to 589 conditions per place. [2021-03-25 12:16:30,585 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 344 selfloop transitions, 58 changer transitions 3/413 dead transitions. [2021-03-25 12:16:30,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 413 transitions, 11323 flow [2021-03-25 12:16:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:30,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 308 transitions. [2021-03-25 12:16:30,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29333333333333333 [2021-03-25 12:16:30,586 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 308 transitions. [2021-03-25 12:16:30,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 308 transitions. [2021-03-25 12:16:30,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:30,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 308 transitions. [2021-03-25 12:16:30,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.8) internal successors, (308), 10 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:30,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:30,587 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:30,587 INFO L185 Difference]: Start difference. First operand has 437 places, 411 transitions, 10473 flow. Second operand 10 states and 308 transitions. [2021-03-25 12:16:30,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 413 transitions, 11323 flow [2021-03-25 12:16:30,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 413 transitions, 11250 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-25 12:16:30,856 INFO L241 Difference]: Finished difference. Result has 435 places, 409 transitions, 10486 flow [2021-03-25 12:16:30,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10400, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10486, PETRI_PLACES=435, PETRI_TRANSITIONS=409} [2021-03-25 12:16:30,856 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 388 predicate places. [2021-03-25 12:16:30,856 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:30,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 435 places, 409 transitions, 10486 flow [2021-03-25 12:16:30,856 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 435 places, 409 transitions, 10486 flow [2021-03-25 12:16:30,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 409 transitions, 10486 flow [2021-03-25 12:16:30,955 INFO L129 PetriNetUnfolder]: 240/672 cut-off events. [2021-03-25 12:16:30,955 INFO L130 PetriNetUnfolder]: For 46993/47095 co-relation queries the response was YES. [2021-03-25 12:16:30,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9390 conditions, 672 events. 240/672 cut-off events. For 46993/47095 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4830 event pairs, 20 based on Foata normal form. 19/690 useless extension candidates. Maximal degree in co-relation 9226. Up to 238 conditions per place. [2021-03-25 12:16:30,966 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 12:16:30,986 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:30,986 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:30,986 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-03-25 12:16:30,986 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 409 transitions, 10486 flow [2021-03-25 12:16:30,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:30,986 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:30,986 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:30,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-03-25 12:16:30,986 INFO L428 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:30,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:30,987 INFO L82 PathProgramCache]: Analyzing trace with hash 575332091, now seen corresponding path program 25 times [2021-03-25 12:16:30,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:30,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651796937] [2021-03-25 12:16:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:30,992 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:30,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:30,996 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:30,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:31,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:31,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:31,046 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:31,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:31,058 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:31,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:31,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651796937] [2021-03-25 12:16:31,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:31,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:31,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349212044] [2021-03-25 12:16:31,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:31,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:31,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:31,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:31,061 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:31,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 409 transitions, 10486 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:31,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:31,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:31,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:31,484 INFO L129 PetriNetUnfolder]: 277/734 cut-off events. [2021-03-25 12:16:31,484 INFO L130 PetriNetUnfolder]: For 51691/51720 co-relation queries the response was YES. [2021-03-25 12:16:31,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10579 conditions, 734 events. 277/734 cut-off events. For 51691/51720 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5122 event pairs, 30 based on Foata normal form. 16/748 useless extension candidates. Maximal degree in co-relation 10413. Up to 576 conditions per place. [2021-03-25 12:16:31,495 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 338 selfloop transitions, 62 changer transitions 4/412 dead transitions. [2021-03-25 12:16:31,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 412 transitions, 11307 flow [2021-03-25 12:16:31,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:31,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 368 transitions. [2021-03-25 12:16:31,496 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2920634920634921 [2021-03-25 12:16:31,496 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 368 transitions. [2021-03-25 12:16:31,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 368 transitions. [2021-03-25 12:16:31,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:31,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 368 transitions. [2021-03-25 12:16:31,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.666666666666668) internal successors, (368), 12 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:31,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:31,497 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:31,497 INFO L185 Difference]: Start difference. First operand has 434 places, 409 transitions, 10486 flow. Second operand 12 states and 368 transitions. [2021-03-25 12:16:31,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 412 transitions, 11307 flow [2021-03-25 12:16:31,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 412 transitions, 11220 flow, removed 1 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:31,765 INFO L241 Difference]: Finished difference. Result has 438 places, 405 transitions, 10503 flow [2021-03-25 12:16:31,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10399, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10503, PETRI_PLACES=438, PETRI_TRANSITIONS=405} [2021-03-25 12:16:31,765 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 391 predicate places. [2021-03-25 12:16:31,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:31,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 438 places, 405 transitions, 10503 flow [2021-03-25 12:16:31,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 438 places, 405 transitions, 10503 flow [2021-03-25 12:16:31,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 405 transitions, 10503 flow [2021-03-25 12:16:31,862 INFO L129 PetriNetUnfolder]: 238/662 cut-off events. [2021-03-25 12:16:31,862 INFO L130 PetriNetUnfolder]: For 47476/47593 co-relation queries the response was YES. [2021-03-25 12:16:31,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9295 conditions, 662 events. 238/662 cut-off events. For 47476/47593 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4761 event pairs, 26 based on Foata normal form. 18/679 useless extension candidates. Maximal degree in co-relation 9110. Up to 236 conditions per place. [2021-03-25 12:16:31,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 478 [2021-03-25 12:16:31,893 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:31,893 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:31,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 12:16:31,893 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 405 transitions, 10503 flow [2021-03-25 12:16:31,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:31,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:31,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:31,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-03-25 12:16:31,894 INFO L428 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:31,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:31,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1600294389, now seen corresponding path program 26 times [2021-03-25 12:16:31,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:31,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928650199] [2021-03-25 12:16:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:31,900 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:31,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:31,904 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:31,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:31,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:31,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:31,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:31,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,965 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:31,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:31,979 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:31,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:31,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928650199] [2021-03-25 12:16:31,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:31,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:31,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564034395] [2021-03-25 12:16:31,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:31,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:31,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:31,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:31,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:31,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 405 transitions, 10503 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:31,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:31,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:31,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:32,299 INFO L129 PetriNetUnfolder]: 276/729 cut-off events. [2021-03-25 12:16:32,299 INFO L130 PetriNetUnfolder]: For 51299/51322 co-relation queries the response was YES. [2021-03-25 12:16:32,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10596 conditions, 729 events. 276/729 cut-off events. For 51299/51322 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5063 event pairs, 42 based on Foata normal form. 8/734 useless extension candidates. Maximal degree in co-relation 10407. Up to 601 conditions per place. [2021-03-25 12:16:32,311 INFO L132 encePairwiseOnDemand]: 94/105 looper letters, 379 selfloop transitions, 13 changer transitions 7/407 dead transitions. [2021-03-25 12:16:32,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 407 transitions, 11336 flow [2021-03-25 12:16:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:32,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 319 transitions. [2021-03-25 12:16:32,312 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2761904761904762 [2021-03-25 12:16:32,312 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 319 transitions. [2021-03-25 12:16:32,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 319 transitions. [2021-03-25 12:16:32,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:32,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 319 transitions. [2021-03-25 12:16:32,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:32,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:32,313 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:32,313 INFO L185 Difference]: Start difference. First operand has 434 places, 405 transitions, 10503 flow. Second operand 11 states and 319 transitions. [2021-03-25 12:16:32,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 407 transitions, 11336 flow [2021-03-25 12:16:32,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 407 transitions, 11177 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:32,587 INFO L241 Difference]: Finished difference. Result has 434 places, 399 transitions, 10186 flow [2021-03-25 12:16:32,588 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10344, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10186, PETRI_PLACES=434, PETRI_TRANSITIONS=399} [2021-03-25 12:16:32,588 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 387 predicate places. [2021-03-25 12:16:32,588 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:32,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 399 transitions, 10186 flow [2021-03-25 12:16:32,588 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 399 transitions, 10186 flow [2021-03-25 12:16:32,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 423 places, 399 transitions, 10186 flow [2021-03-25 12:16:32,685 INFO L129 PetriNetUnfolder]: 236/655 cut-off events. [2021-03-25 12:16:32,685 INFO L130 PetriNetUnfolder]: For 46962/47069 co-relation queries the response was YES. [2021-03-25 12:16:32,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9088 conditions, 655 events. 236/655 cut-off events. For 46962/47069 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4680 event pairs, 21 based on Foata normal form. 17/670 useless extension candidates. Maximal degree in co-relation 8924. Up to 234 conditions per place. [2021-03-25 12:16:32,696 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 12:16:32,715 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:32,715 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:32,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 12:16:32,715 INFO L480 AbstractCegarLoop]: Abstraction has has 423 places, 399 transitions, 10186 flow [2021-03-25 12:16:32,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:32,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:32,715 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:32,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-03-25 12:16:32,715 INFO L428 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:32,716 INFO L82 PathProgramCache]: Analyzing trace with hash -762005241, now seen corresponding path program 2 times [2021-03-25 12:16:32,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:32,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735935513] [2021-03-25 12:16:32,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:32,721 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:32,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:32,726 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:32,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:32,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:32,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:32,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:32,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:32,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:32,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:32,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:32,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:32,768 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:32,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:32,781 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:32,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:32,794 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:32,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:32,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:32,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735935513] [2021-03-25 12:16:32,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:32,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:32,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098543378] [2021-03-25 12:16:32,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:32,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:32,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:32,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:32,797 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:32,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 399 transitions, 10186 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:32,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:32,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:32,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:33,253 INFO L129 PetriNetUnfolder]: 275/720 cut-off events. [2021-03-25 12:16:33,253 INFO L130 PetriNetUnfolder]: For 51244/51290 co-relation queries the response was YES. [2021-03-25 12:16:33,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10385 conditions, 720 events. 275/720 cut-off events. For 51244/51290 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4949 event pairs, 41 based on Foata normal form. 9/725 useless extension candidates. Maximal degree in co-relation 10219. Up to 585 conditions per place. [2021-03-25 12:16:33,263 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 350 selfloop transitions, 40 changer transitions 3/401 dead transitions. [2021-03-25 12:16:33,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 401 transitions, 11012 flow [2021-03-25 12:16:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:33,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2021-03-25 12:16:33,264 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2895238095238095 [2021-03-25 12:16:33,264 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 304 transitions. [2021-03-25 12:16:33,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 304 transitions. [2021-03-25 12:16:33,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:33,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 304 transitions. [2021-03-25 12:16:33,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.4) internal successors, (304), 10 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:33,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:33,265 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:33,265 INFO L185 Difference]: Start difference. First operand has 423 places, 399 transitions, 10186 flow. Second operand 10 states and 304 transitions. [2021-03-25 12:16:33,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 401 transitions, 11012 flow [2021-03-25 12:16:33,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 401 transitions, 10942 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:33,570 INFO L241 Difference]: Finished difference. Result has 424 places, 397 transitions, 10180 flow [2021-03-25 12:16:33,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10116, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10180, PETRI_PLACES=424, PETRI_TRANSITIONS=397} [2021-03-25 12:16:33,570 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 377 predicate places. [2021-03-25 12:16:33,570 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:33,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 397 transitions, 10180 flow [2021-03-25 12:16:33,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 397 transitions, 10180 flow [2021-03-25 12:16:33,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 423 places, 397 transitions, 10180 flow [2021-03-25 12:16:33,667 INFO L129 PetriNetUnfolder]: 236/653 cut-off events. [2021-03-25 12:16:33,667 INFO L130 PetriNetUnfolder]: For 47114/47207 co-relation queries the response was YES. [2021-03-25 12:16:33,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9093 conditions, 653 events. 236/653 cut-off events. For 47114/47207 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4658 event pairs, 26 based on Foata normal form. 17/667 useless extension candidates. Maximal degree in co-relation 8931. Up to 235 conditions per place. [2021-03-25 12:16:33,679 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 12:16:33,698 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:33,698 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:33,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 12:16:33,698 INFO L480 AbstractCegarLoop]: Abstraction has has 423 places, 397 transitions, 10180 flow [2021-03-25 12:16:33,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:33,698 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:33,698 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:33,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-03-25 12:16:33,698 INFO L428 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:33,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:33,699 INFO L82 PathProgramCache]: Analyzing trace with hash 661469501, now seen corresponding path program 1 times [2021-03-25 12:16:33,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:33,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696303573] [2021-03-25 12:16:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:33,706 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:33,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:33,710 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:33,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:33,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:33,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:33,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:33,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:33,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:33,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:33,739 INFO L142 QuantifierPusher]: treesize reduction 24, result has 60.0 percent of original size [2021-03-25 12:16:33,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 12:16:33,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:33,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:33,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:33,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:16:33,780 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:16:33,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:16:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:33,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696303573] [2021-03-25 12:16:33,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:33,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:33,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292290571] [2021-03-25 12:16:33,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:33,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:33,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:33,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:33,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:33,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 397 transitions, 10180 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:33,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:33,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:33,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:34,152 INFO L129 PetriNetUnfolder]: 274/720 cut-off events. [2021-03-25 12:16:34,153 INFO L130 PetriNetUnfolder]: For 50759/50782 co-relation queries the response was YES. [2021-03-25 12:16:34,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10384 conditions, 720 events. 274/720 cut-off events. For 50759/50782 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4946 event pairs, 42 based on Foata normal form. 8/725 useless extension candidates. Maximal degree in co-relation 10220. Up to 587 conditions per place. [2021-03-25 12:16:34,163 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 355 selfloop transitions, 33 changer transitions 3/399 dead transitions. [2021-03-25 12:16:34,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 399 transitions, 11002 flow [2021-03-25 12:16:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 328 transitions. [2021-03-25 12:16:34,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.283982683982684 [2021-03-25 12:16:34,164 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 328 transitions. [2021-03-25 12:16:34,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 328 transitions. [2021-03-25 12:16:34,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:34,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 328 transitions. [2021-03-25 12:16:34,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.818181818181817) internal successors, (328), 11 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:34,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:34,165 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:34,165 INFO L185 Difference]: Start difference. First operand has 423 places, 397 transitions, 10180 flow. Second operand 11 states and 328 transitions. [2021-03-25 12:16:34,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 399 transitions, 11002 flow [2021-03-25 12:16:34,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 399 transitions, 10897 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:34,467 INFO L241 Difference]: Finished difference. Result has 423 places, 395 transitions, 10085 flow [2021-03-25 12:16:34,468 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10075, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10085, PETRI_PLACES=423, PETRI_TRANSITIONS=395} [2021-03-25 12:16:34,468 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 376 predicate places. [2021-03-25 12:16:34,468 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:34,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 395 transitions, 10085 flow [2021-03-25 12:16:34,468 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 395 transitions, 10085 flow [2021-03-25 12:16:34,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 422 places, 395 transitions, 10085 flow [2021-03-25 12:16:34,566 INFO L129 PetriNetUnfolder]: 235/650 cut-off events. [2021-03-25 12:16:34,566 INFO L130 PetriNetUnfolder]: For 46755/46848 co-relation queries the response was YES. [2021-03-25 12:16:34,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9038 conditions, 650 events. 235/650 cut-off events. For 46755/46848 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4611 event pairs, 25 based on Foata normal form. 17/664 useless extension candidates. Maximal degree in co-relation 8877. Up to 235 conditions per place. [2021-03-25 12:16:34,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 12:16:34,596 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:34,596 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:34,596 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 12:16:34,596 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 395 transitions, 10085 flow [2021-03-25 12:16:34,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:34,596 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:34,596 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:34,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-03-25 12:16:34,596 INFO L428 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:34,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:34,597 INFO L82 PathProgramCache]: Analyzing trace with hash 129073969, now seen corresponding path program 149 times [2021-03-25 12:16:34,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:34,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335754295] [2021-03-25 12:16:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:34,602 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:34,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:34,607 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:34,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:34,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:34,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:34,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:34,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:34,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:34,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:34,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:34,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:34,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:34,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:34,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:34,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:34,668 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:34,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:34,672 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:34,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:34,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335754295] [2021-03-25 12:16:34,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:34,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:34,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941410144] [2021-03-25 12:16:34,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:34,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:34,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:34,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:34,675 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:34,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 395 transitions, 10085 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:34,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:34,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:34,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:35,093 INFO L129 PetriNetUnfolder]: 278/722 cut-off events. [2021-03-25 12:16:35,093 INFO L130 PetriNetUnfolder]: For 51847/51870 co-relation queries the response was YES. [2021-03-25 12:16:35,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10466 conditions, 722 events. 278/722 cut-off events. For 51847/51870 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4919 event pairs, 35 based on Foata normal form. 12/733 useless extension candidates. Maximal degree in co-relation 10303. Up to 512 conditions per place. [2021-03-25 12:16:35,103 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 253 selfloop transitions, 142 changer transitions 6/409 dead transitions. [2021-03-25 12:16:35,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 409 transitions, 11297 flow [2021-03-25 12:16:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:16:35,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3057142857142857 [2021-03-25 12:16:35,105 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:16:35,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:16:35,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:35,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:16:35,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:35,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:35,105 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:35,105 INFO L185 Difference]: Start difference. First operand has 422 places, 395 transitions, 10085 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:16:35,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 409 transitions, 11297 flow [2021-03-25 12:16:35,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 409 transitions, 11174 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:35,391 INFO L241 Difference]: Finished difference. Result has 423 places, 400 transitions, 10582 flow [2021-03-25 12:16:35,392 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9962, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10582, PETRI_PLACES=423, PETRI_TRANSITIONS=400} [2021-03-25 12:16:35,392 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 376 predicate places. [2021-03-25 12:16:35,392 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:35,392 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 400 transitions, 10582 flow [2021-03-25 12:16:35,392 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 400 transitions, 10582 flow [2021-03-25 12:16:35,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 422 places, 400 transitions, 10582 flow [2021-03-25 12:16:35,501 INFO L129 PetriNetUnfolder]: 234/651 cut-off events. [2021-03-25 12:16:35,501 INFO L130 PetriNetUnfolder]: For 49654/49765 co-relation queries the response was YES. [2021-03-25 12:16:35,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9361 conditions, 651 events. 234/651 cut-off events. For 49654/49765 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4655 event pairs, 25 based on Foata normal form. 19/668 useless extension candidates. Maximal degree in co-relation 9177. Up to 236 conditions per place. [2021-03-25 12:16:35,516 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 12:16:35,536 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:35,536 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:35,536 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-03-25 12:16:35,536 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 400 transitions, 10582 flow [2021-03-25 12:16:35,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:35,536 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:35,536 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:35,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-03-25 12:16:35,536 INFO L428 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:35,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:35,537 INFO L82 PathProgramCache]: Analyzing trace with hash -2068689245, now seen corresponding path program 150 times [2021-03-25 12:16:35,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:35,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607392459] [2021-03-25 12:16:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:35,542 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:35,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:35,547 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:35,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:35,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:35,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:35,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:35,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:35,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:35,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:35,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:35,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:35,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:35,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:35,597 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:35,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:35,603 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:35,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:35,616 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:35,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:35,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607392459] [2021-03-25 12:16:35,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:35,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:35,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100750792] [2021-03-25 12:16:35,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:35,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:35,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:35,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:35,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 400 transitions, 10582 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:35,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:35,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:35,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:36,062 INFO L129 PetriNetUnfolder]: 277/721 cut-off events. [2021-03-25 12:16:36,062 INFO L130 PetriNetUnfolder]: For 54431/54454 co-relation queries the response was YES. [2021-03-25 12:16:36,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10877 conditions, 721 events. 277/721 cut-off events. For 54431/54454 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4934 event pairs, 33 based on Foata normal form. 12/732 useless extension candidates. Maximal degree in co-relation 10689. Up to 543 conditions per place. [2021-03-25 12:16:36,072 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 317 selfloop transitions, 82 changer transitions 2/409 dead transitions. [2021-03-25 12:16:36,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 409 transitions, 11774 flow [2021-03-25 12:16:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:36,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2021-03-25 12:16:36,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3047619047619048 [2021-03-25 12:16:36,074 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 320 transitions. [2021-03-25 12:16:36,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 320 transitions. [2021-03-25 12:16:36,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:36,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 320 transitions. [2021-03-25 12:16:36,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.0) internal successors, (320), 10 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:36,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:36,074 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:36,074 INFO L185 Difference]: Start difference. First operand has 422 places, 400 transitions, 10582 flow. Second operand 10 states and 320 transitions. [2021-03-25 12:16:36,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 409 transitions, 11774 flow [2021-03-25 12:16:36,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 409 transitions, 11299 flow, removed 68 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:36,370 INFO L241 Difference]: Finished difference. Result has 425 places, 403 transitions, 10479 flow [2021-03-25 12:16:36,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10109, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10479, PETRI_PLACES=425, PETRI_TRANSITIONS=403} [2021-03-25 12:16:36,370 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 378 predicate places. [2021-03-25 12:16:36,370 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:36,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 403 transitions, 10479 flow [2021-03-25 12:16:36,370 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 403 transitions, 10479 flow [2021-03-25 12:16:36,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 424 places, 403 transitions, 10479 flow [2021-03-25 12:16:36,473 INFO L129 PetriNetUnfolder]: 237/658 cut-off events. [2021-03-25 12:16:36,473 INFO L130 PetriNetUnfolder]: For 49270/49356 co-relation queries the response was YES. [2021-03-25 12:16:36,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9334 conditions, 658 events. 237/658 cut-off events. For 49270/49356 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4748 event pairs, 28 based on Foata normal form. 21/678 useless extension candidates. Maximal degree in co-relation 9171. Up to 238 conditions per place. [2021-03-25 12:16:36,487 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:36,506 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:36,506 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:36,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 12:16:36,506 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 403 transitions, 10479 flow [2021-03-25 12:16:36,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:36,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:36,506 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:36,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-03-25 12:16:36,507 INFO L428 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:36,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:36,507 INFO L82 PathProgramCache]: Analyzing trace with hash 80107291, now seen corresponding path program 151 times [2021-03-25 12:16:36,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:36,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791408461] [2021-03-25 12:16:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:36,513 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:36,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:36,517 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:36,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:36,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:36,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:36,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:36,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:36,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:36,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:36,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:36,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:36,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:36,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:36,566 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:36,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:36,578 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:36,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:36,592 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:36,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:36,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:36,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791408461] [2021-03-25 12:16:36,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:36,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:36,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252384123] [2021-03-25 12:16:36,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:36,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:36,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:36,595 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:36,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 403 transitions, 10479 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:36,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:36,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:36,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:37,058 INFO L129 PetriNetUnfolder]: 278/742 cut-off events. [2021-03-25 12:16:37,059 INFO L130 PetriNetUnfolder]: For 55584/55607 co-relation queries the response was YES. [2021-03-25 12:16:37,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10902 conditions, 742 events. 278/742 cut-off events. For 55584/55607 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5189 event pairs, 19 based on Foata normal form. 14/756 useless extension candidates. Maximal degree in co-relation 10737. Up to 492 conditions per place. [2021-03-25 12:16:37,070 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 278 selfloop transitions, 126 changer transitions 4/416 dead transitions. [2021-03-25 12:16:37,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 416 transitions, 11759 flow [2021-03-25 12:16:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 356 transitions. [2021-03-25 12:16:37,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30822510822510824 [2021-03-25 12:16:37,071 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 356 transitions. [2021-03-25 12:16:37,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 356 transitions. [2021-03-25 12:16:37,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:37,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 356 transitions. [2021-03-25 12:16:37,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.36363636363637) internal successors, (356), 11 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,072 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,072 INFO L185 Difference]: Start difference. First operand has 424 places, 403 transitions, 10479 flow. Second operand 11 states and 356 transitions. [2021-03-25 12:16:37,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 416 transitions, 11759 flow [2021-03-25 12:16:37,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 416 transitions, 11614 flow, removed 36 selfloop flow, removed 6 redundant places. [2021-03-25 12:16:37,380 INFO L241 Difference]: Finished difference. Result has 431 places, 406 transitions, 10834 flow [2021-03-25 12:16:37,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10334, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10834, PETRI_PLACES=431, PETRI_TRANSITIONS=406} [2021-03-25 12:16:37,380 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 384 predicate places. [2021-03-25 12:16:37,381 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:37,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 431 places, 406 transitions, 10834 flow [2021-03-25 12:16:37,381 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 431 places, 406 transitions, 10834 flow [2021-03-25 12:16:37,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 406 transitions, 10834 flow [2021-03-25 12:16:37,486 INFO L129 PetriNetUnfolder]: 236/663 cut-off events. [2021-03-25 12:16:37,486 INFO L130 PetriNetUnfolder]: For 51020/51106 co-relation queries the response was YES. [2021-03-25 12:16:37,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9583 conditions, 663 events. 236/663 cut-off events. For 51020/51106 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4795 event pairs, 18 based on Foata normal form. 21/683 useless extension candidates. Maximal degree in co-relation 9417. Up to 242 conditions per place. [2021-03-25 12:16:37,498 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:37,518 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:37,518 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:37,518 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 12:16:37,519 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 406 transitions, 10834 flow [2021-03-25 12:16:37,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:37,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:37,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-25 12:16:37,519 INFO L428 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:37,519 INFO L82 PathProgramCache]: Analyzing trace with hash -218868733, now seen corresponding path program 152 times [2021-03-25 12:16:37,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:37,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250359593] [2021-03-25 12:16:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:37,525 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:37,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:37,530 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:37,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:37,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:37,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:37,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:37,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:37,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:37,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:37,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:37,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:37,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:37,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:37,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:37,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:37,583 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:37,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:37,586 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:37,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:37,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250359593] [2021-03-25 12:16:37,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:37,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:37,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79870386] [2021-03-25 12:16:37,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:37,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:37,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:37,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:37,589 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:37,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 406 transitions, 10834 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:37,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:37,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:37,959 INFO L129 PetriNetUnfolder]: 279/734 cut-off events. [2021-03-25 12:16:37,959 INFO L130 PetriNetUnfolder]: For 54786/54809 co-relation queries the response was YES. [2021-03-25 12:16:37,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11074 conditions, 734 events. 279/734 cut-off events. For 54786/54809 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5048 event pairs, 38 based on Foata normal form. 8/739 useless extension candidates. Maximal degree in co-relation 10906. Up to 593 conditions per place. [2021-03-25 12:16:37,970 INFO L132 encePairwiseOnDemand]: 94/105 looper letters, 348 selfloop transitions, 56 changer transitions 3/415 dead transitions. [2021-03-25 12:16:37,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 415 transitions, 11931 flow [2021-03-25 12:16:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:37,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 334 transitions. [2021-03-25 12:16:37,971 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2891774891774892 [2021-03-25 12:16:37,971 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 334 transitions. [2021-03-25 12:16:37,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 334 transitions. [2021-03-25 12:16:37,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:37,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 334 transitions. [2021-03-25 12:16:37,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.363636363636363) internal successors, (334), 11 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,972 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:37,972 INFO L185 Difference]: Start difference. First operand has 430 places, 406 transitions, 10834 flow. Second operand 11 states and 334 transitions. [2021-03-25 12:16:37,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 415 transitions, 11931 flow [2021-03-25 12:16:38,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 415 transitions, 11696 flow, removed 42 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:38,255 INFO L241 Difference]: Finished difference. Result has 437 places, 411 transitions, 10929 flow [2021-03-25 12:16:38,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10607, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10929, PETRI_PLACES=437, PETRI_TRANSITIONS=411} [2021-03-25 12:16:38,255 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 390 predicate places. [2021-03-25 12:16:38,255 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:38,255 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 411 transitions, 10929 flow [2021-03-25 12:16:38,255 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 411 transitions, 10929 flow [2021-03-25 12:16:38,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 411 transitions, 10929 flow [2021-03-25 12:16:38,358 INFO L129 PetriNetUnfolder]: 246/685 cut-off events. [2021-03-25 12:16:38,359 INFO L130 PetriNetUnfolder]: For 51221/51324 co-relation queries the response was YES. [2021-03-25 12:16:38,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9958 conditions, 685 events. 246/685 cut-off events. For 51221/51324 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5006 event pairs, 38 based on Foata normal form. 14/696 useless extension candidates. Maximal degree in co-relation 9767. Up to 256 conditions per place. [2021-03-25 12:16:38,370 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:38,389 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:38,389 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:38,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 134 [2021-03-25 12:16:38,390 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 411 transitions, 10929 flow [2021-03-25 12:16:38,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:38,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:38,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:38,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-03-25 12:16:38,390 INFO L428 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:38,390 INFO L82 PathProgramCache]: Analyzing trace with hash 694886193, now seen corresponding path program 153 times [2021-03-25 12:16:38,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:38,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296807045] [2021-03-25 12:16:38,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:38,396 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:38,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:38,401 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:38,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:38,407 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:16:38,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:16:38,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:38,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:38,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:38,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:38,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:38,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:38,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:38,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:38,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:38,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:38,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:38,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:38,475 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:38,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:38,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296807045] [2021-03-25 12:16:38,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:38,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:38,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037477778] [2021-03-25 12:16:38,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:38,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:38,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:38,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:38,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:38,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 411 transitions, 10929 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:38,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:38,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:38,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:38,861 INFO L129 PetriNetUnfolder]: 277/730 cut-off events. [2021-03-25 12:16:38,861 INFO L130 PetriNetUnfolder]: For 53755/53784 co-relation queries the response was YES. [2021-03-25 12:16:38,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11006 conditions, 730 events. 277/730 cut-off events. For 53755/53784 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5047 event pairs, 25 based on Foata normal form. 18/747 useless extension candidates. Maximal degree in co-relation 10811. Up to 593 conditions per place. [2021-03-25 12:16:38,873 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 371 selfloop transitions, 34 changer transitions 2/415 dead transitions. [2021-03-25 12:16:38,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 415 transitions, 11805 flow [2021-03-25 12:16:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2021-03-25 12:16:38,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2021-03-25 12:16:38,874 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 330 transitions. [2021-03-25 12:16:38,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 330 transitions. [2021-03-25 12:16:38,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:38,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 330 transitions. [2021-03-25 12:16:38,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.0) internal successors, (330), 11 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:38,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:38,875 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:38,875 INFO L185 Difference]: Start difference. First operand has 436 places, 411 transitions, 10929 flow. Second operand 11 states and 330 transitions. [2021-03-25 12:16:38,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 415 transitions, 11805 flow [2021-03-25 12:16:39,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 415 transitions, 11603 flow, removed 37 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:39,160 INFO L241 Difference]: Finished difference. Result has 440 places, 410 transitions, 10803 flow [2021-03-25 12:16:39,160 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10727, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10803, PETRI_PLACES=440, PETRI_TRANSITIONS=410} [2021-03-25 12:16:39,160 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 393 predicate places. [2021-03-25 12:16:39,160 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:39,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 410 transitions, 10803 flow [2021-03-25 12:16:39,161 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 410 transitions, 10803 flow [2021-03-25 12:16:39,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 410 transitions, 10803 flow [2021-03-25 12:16:39,268 INFO L129 PetriNetUnfolder]: 248/695 cut-off events. [2021-03-25 12:16:39,268 INFO L130 PetriNetUnfolder]: For 50509/50584 co-relation queries the response was YES. [2021-03-25 12:16:39,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10072 conditions, 695 events. 248/695 cut-off events. For 50509/50584 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5111 event pairs, 28 based on Foata normal form. 6/695 useless extension candidates. Maximal degree in co-relation 9881. Up to 259 conditions per place. [2021-03-25 12:16:39,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:16:39,300 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:39,300 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:39,300 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-25 12:16:39,300 INFO L480 AbstractCegarLoop]: Abstraction has has 439 places, 410 transitions, 10803 flow [2021-03-25 12:16:39,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:39,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:39,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:39,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-03-25 12:16:39,300 INFO L428 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:39,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1542086433, now seen corresponding path program 154 times [2021-03-25 12:16:39,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:39,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893985392] [2021-03-25 12:16:39,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:39,307 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:39,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:39,312 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:39,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:39,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:39,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:39,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:39,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:39,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:39,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:39,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:39,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:39,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:39,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:39,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:39,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:39,362 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:39,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:39,375 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:39,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:39,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893985392] [2021-03-25 12:16:39,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:39,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:39,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254688891] [2021-03-25 12:16:39,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:39,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:39,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:39,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:39,378 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:39,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 410 transitions, 10803 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:39,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:39,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:39,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:39,760 INFO L129 PetriNetUnfolder]: 277/734 cut-off events. [2021-03-25 12:16:39,760 INFO L130 PetriNetUnfolder]: For 53353/53376 co-relation queries the response was YES. [2021-03-25 12:16:39,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10985 conditions, 734 events. 277/734 cut-off events. For 53353/53376 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5105 event pairs, 27 based on Foata normal form. 10/742 useless extension candidates. Maximal degree in co-relation 10790. Up to 582 conditions per place. [2021-03-25 12:16:39,771 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 347 selfloop transitions, 54 changer transitions 8/417 dead transitions. [2021-03-25 12:16:39,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 417 transitions, 11738 flow [2021-03-25 12:16:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:39,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 335 transitions. [2021-03-25 12:16:39,772 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29004329004329005 [2021-03-25 12:16:39,772 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 335 transitions. [2021-03-25 12:16:39,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 335 transitions. [2021-03-25 12:16:39,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:39,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 335 transitions. [2021-03-25 12:16:39,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.454545454545453) internal successors, (335), 11 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:39,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:39,773 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:39,773 INFO L185 Difference]: Start difference. First operand has 439 places, 410 transitions, 10803 flow. Second operand 11 states and 335 transitions. [2021-03-25 12:16:39,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 417 transitions, 11738 flow [2021-03-25 12:16:40,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 417 transitions, 11635 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:40,094 INFO L241 Difference]: Finished difference. Result has 443 places, 406 transitions, 10715 flow [2021-03-25 12:16:40,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10702, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10715, PETRI_PLACES=443, PETRI_TRANSITIONS=406} [2021-03-25 12:16:40,095 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 396 predicate places. [2021-03-25 12:16:40,095 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:40,095 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 406 transitions, 10715 flow [2021-03-25 12:16:40,095 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 406 transitions, 10715 flow [2021-03-25 12:16:40,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 406 transitions, 10715 flow [2021-03-25 12:16:40,200 INFO L129 PetriNetUnfolder]: 245/680 cut-off events. [2021-03-25 12:16:40,201 INFO L130 PetriNetUnfolder]: For 50018/50107 co-relation queries the response was YES. [2021-03-25 12:16:40,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9867 conditions, 680 events. 245/680 cut-off events. For 50018/50107 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4901 event pairs, 18 based on Foata normal form. 14/692 useless extension candidates. Maximal degree in co-relation 9695. Up to 251 conditions per place. [2021-03-25 12:16:40,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 492 [2021-03-25 12:16:40,233 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:40,233 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:40,233 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 138 [2021-03-25 12:16:40,234 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 406 transitions, 10715 flow [2021-03-25 12:16:40,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:40,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:40,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:40,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-03-25 12:16:40,234 INFO L428 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:40,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:40,234 INFO L82 PathProgramCache]: Analyzing trace with hash 503387791, now seen corresponding path program 155 times [2021-03-25 12:16:40,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:40,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396370216] [2021-03-25 12:16:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:40,241 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:40,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:40,245 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:40,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:40,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:40,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:40,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:40,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:40,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:40,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:40,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:40,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:40,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:40,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:40,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:40,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:40,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:40,313 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:40,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:40,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396370216] [2021-03-25 12:16:40,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:40,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:40,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881584654] [2021-03-25 12:16:40,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:40,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:40,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:40,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:40,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:40,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 406 transitions, 10715 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:40,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:40,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:40,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:40,736 INFO L129 PetriNetUnfolder]: 275/726 cut-off events. [2021-03-25 12:16:40,736 INFO L130 PetriNetUnfolder]: For 53795/53810 co-relation queries the response was YES. [2021-03-25 12:16:40,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10927 conditions, 726 events. 275/726 cut-off events. For 53795/53810 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5022 event pairs, 30 based on Foata normal form. 12/738 useless extension candidates. Maximal degree in co-relation 10753. Up to 549 conditions per place. [2021-03-25 12:16:40,748 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 316 selfloop transitions, 88 changer transitions 2/414 dead transitions. [2021-03-25 12:16:40,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 414 transitions, 11740 flow [2021-03-25 12:16:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 322 transitions. [2021-03-25 12:16:40,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30666666666666664 [2021-03-25 12:16:40,749 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 322 transitions. [2021-03-25 12:16:40,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 322 transitions. [2021-03-25 12:16:40,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:40,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 322 transitions. [2021-03-25 12:16:40,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:40,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:40,750 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:40,750 INFO L185 Difference]: Start difference. First operand has 438 places, 406 transitions, 10715 flow. Second operand 10 states and 322 transitions. [2021-03-25 12:16:40,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 414 transitions, 11740 flow [2021-03-25 12:16:41,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 414 transitions, 11590 flow, removed 19 selfloop flow, removed 13 redundant places. [2021-03-25 12:16:41,050 INFO L241 Difference]: Finished difference. Result has 437 places, 408 transitions, 10942 flow [2021-03-25 12:16:41,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10567, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10942, PETRI_PLACES=437, PETRI_TRANSITIONS=408} [2021-03-25 12:16:41,051 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 390 predicate places. [2021-03-25 12:16:41,051 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:41,051 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 408 transitions, 10942 flow [2021-03-25 12:16:41,051 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 408 transitions, 10942 flow [2021-03-25 12:16:41,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 408 transitions, 10942 flow [2021-03-25 12:16:41,154 INFO L129 PetriNetUnfolder]: 233/658 cut-off events. [2021-03-25 12:16:41,154 INFO L130 PetriNetUnfolder]: For 50781/50874 co-relation queries the response was YES. [2021-03-25 12:16:41,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9623 conditions, 658 events. 233/658 cut-off events. For 50781/50874 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4801 event pairs, 33 based on Foata normal form. 17/673 useless extension candidates. Maximal degree in co-relation 9433. Up to 239 conditions per place. [2021-03-25 12:16:41,188 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:41,207 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:41,208 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:41,208 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-03-25 12:16:41,208 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 408 transitions, 10942 flow [2021-03-25 12:16:41,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:41,208 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:41,208 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:41,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-03-25 12:16:41,208 INFO L428 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:41,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash 640410479, now seen corresponding path program 156 times [2021-03-25 12:16:41,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:41,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391665735] [2021-03-25 12:16:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:41,216 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:41,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:41,221 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:41,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:41,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:41,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:41,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:41,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:41,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:41,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:41,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:41,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:41,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:41,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:41,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:41,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:41,281 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:41,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:41,295 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:41,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:41,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391665735] [2021-03-25 12:16:41,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:41,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:41,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654244075] [2021-03-25 12:16:41,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:41,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:41,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:41,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:41,298 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:41,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 408 transitions, 10942 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:41,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:41,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:41,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:41,786 INFO L129 PetriNetUnfolder]: 275/729 cut-off events. [2021-03-25 12:16:41,786 INFO L130 PetriNetUnfolder]: For 54043/54066 co-relation queries the response was YES. [2021-03-25 12:16:41,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11045 conditions, 729 events. 275/729 cut-off events. For 54043/54066 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5082 event pairs, 23 based on Foata normal form. 14/743 useless extension candidates. Maximal degree in co-relation 10851. Up to 489 conditions per place. [2021-03-25 12:16:41,798 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 275 selfloop transitions, 132 changer transitions 2/417 dead transitions. [2021-03-25 12:16:41,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 417 transitions, 11981 flow [2021-03-25 12:16:41,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:41,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 357 transitions. [2021-03-25 12:16:41,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3090909090909091 [2021-03-25 12:16:41,799 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 357 transitions. [2021-03-25 12:16:41,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 357 transitions. [2021-03-25 12:16:41,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:41,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 357 transitions. [2021-03-25 12:16:41,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.45454545454545) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:41,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:41,801 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:41,801 INFO L185 Difference]: Start difference. First operand has 436 places, 408 transitions, 10942 flow. Second operand 11 states and 357 transitions. [2021-03-25 12:16:41,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 417 transitions, 11981 flow [2021-03-25 12:16:42,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 417 transitions, 11579 flow, removed 65 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:42,135 INFO L241 Difference]: Finished difference. Result has 439 places, 410 transitions, 11034 flow [2021-03-25 12:16:42,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10546, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11034, PETRI_PLACES=439, PETRI_TRANSITIONS=410} [2021-03-25 12:16:42,135 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 392 predicate places. [2021-03-25 12:16:42,136 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:42,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 410 transitions, 11034 flow [2021-03-25 12:16:42,136 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 410 transitions, 11034 flow [2021-03-25 12:16:42,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 410 transitions, 11034 flow [2021-03-25 12:16:42,240 INFO L129 PetriNetUnfolder]: 233/663 cut-off events. [2021-03-25 12:16:42,240 INFO L130 PetriNetUnfolder]: For 52407/52557 co-relation queries the response was YES. [2021-03-25 12:16:42,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9643 conditions, 663 events. 233/663 cut-off events. For 52407/52557 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4846 event pairs, 23 based on Foata normal form. 19/680 useless extension candidates. Maximal degree in co-relation 9453. Up to 239 conditions per place. [2021-03-25 12:16:42,253 INFO L142 LiptonReduction]: Number of co-enabled transitions 508 [2021-03-25 12:16:42,272 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:42,273 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:42,273 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 138 [2021-03-25 12:16:42,273 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 410 transitions, 11034 flow [2021-03-25 12:16:42,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:42,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:42,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:42,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-03-25 12:16:42,273 INFO L428 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:42,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:42,274 INFO L82 PathProgramCache]: Analyzing trace with hash 204519219, now seen corresponding path program 157 times [2021-03-25 12:16:42,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:42,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625970269] [2021-03-25 12:16:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:42,303 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:42,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:42,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:42,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:42,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:42,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:42,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:42,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:42,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:42,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:42,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:42,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:42,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:42,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:42,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:42,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:42,359 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:42,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:42,372 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:42,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:42,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625970269] [2021-03-25 12:16:42,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:42,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:42,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412076117] [2021-03-25 12:16:42,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:42,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:42,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:42,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:42,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:42,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 410 transitions, 11034 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:42,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:42,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:42,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:42,779 INFO L129 PetriNetUnfolder]: 275/737 cut-off events. [2021-03-25 12:16:42,779 INFO L130 PetriNetUnfolder]: For 54604/54627 co-relation queries the response was YES. [2021-03-25 12:16:42,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11105 conditions, 737 events. 275/737 cut-off events. For 54604/54627 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5155 event pairs, 43 based on Foata normal form. 10/745 useless extension candidates. Maximal degree in co-relation 10911. Up to 586 conditions per place. [2021-03-25 12:16:42,790 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 359 selfloop transitions, 45 changer transitions 6/418 dead transitions. [2021-03-25 12:16:42,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 418 transitions, 12026 flow [2021-03-25 12:16:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:42,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 337 transitions. [2021-03-25 12:16:42,792 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2917748917748918 [2021-03-25 12:16:42,792 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 337 transitions. [2021-03-25 12:16:42,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 337 transitions. [2021-03-25 12:16:42,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:42,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 337 transitions. [2021-03-25 12:16:42,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 11 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:42,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:42,793 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:42,793 INFO L185 Difference]: Start difference. First operand has 438 places, 410 transitions, 11034 flow. Second operand 11 states and 337 transitions. [2021-03-25 12:16:42,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 418 transitions, 12026 flow [2021-03-25 12:16:43,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 418 transitions, 11611 flow, removed 69 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:43,119 INFO L241 Difference]: Finished difference. Result has 443 places, 408 transitions, 10654 flow [2021-03-25 12:16:43,119 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10637, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10654, PETRI_PLACES=443, PETRI_TRANSITIONS=408} [2021-03-25 12:16:43,119 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 396 predicate places. [2021-03-25 12:16:43,119 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:43,119 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 408 transitions, 10654 flow [2021-03-25 12:16:43,119 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 408 transitions, 10654 flow [2021-03-25 12:16:43,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 408 transitions, 10654 flow [2021-03-25 12:16:43,221 INFO L129 PetriNetUnfolder]: 233/660 cut-off events. [2021-03-25 12:16:43,222 INFO L130 PetriNetUnfolder]: For 48010/48103 co-relation queries the response was YES. [2021-03-25 12:16:43,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9407 conditions, 660 events. 233/660 cut-off events. For 48010/48103 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4759 event pairs, 24 based on Foata normal form. 17/674 useless extension candidates. Maximal degree in co-relation 9236. Up to 239 conditions per place. [2021-03-25 12:16:43,234 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:16:43,254 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:43,254 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:43,254 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 12:16:43,254 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 408 transitions, 10654 flow [2021-03-25 12:16:43,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:43,254 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:43,254 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:43,254 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-03-25 12:16:43,254 INFO L428 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:43,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:43,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1696066097, now seen corresponding path program 158 times [2021-03-25 12:16:43,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:43,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501568313] [2021-03-25 12:16:43,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:43,261 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:43,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:43,265 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:43,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:43,272 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:16:43,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:16:43,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:43,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:43,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:43,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:43,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:43,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:43,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:43,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:43,303 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:43,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:43,315 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:43,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:43,319 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:43,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:43,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501568313] [2021-03-25 12:16:43,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:43,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:43,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253923832] [2021-03-25 12:16:43,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:43,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:43,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:43,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:43,321 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:43,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 408 transitions, 10654 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:43,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:43,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:43,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:43,663 INFO L129 PetriNetUnfolder]: 274/729 cut-off events. [2021-03-25 12:16:43,663 INFO L130 PetriNetUnfolder]: For 53029/53058 co-relation queries the response was YES. [2021-03-25 12:16:43,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10827 conditions, 729 events. 274/729 cut-off events. For 53029/53058 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5066 event pairs, 44 based on Foata normal form. 16/743 useless extension candidates. Maximal degree in co-relation 10654. Up to 598 conditions per place. [2021-03-25 12:16:43,674 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 375 selfloop transitions, 27 changer transitions 2/412 dead transitions. [2021-03-25 12:16:43,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 412 transitions, 11575 flow [2021-03-25 12:16:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 323 transitions. [2021-03-25 12:16:43,675 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27965367965367965 [2021-03-25 12:16:43,675 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 323 transitions. [2021-03-25 12:16:43,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 323 transitions. [2021-03-25 12:16:43,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:43,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 323 transitions. [2021-03-25 12:16:43,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.363636363636363) internal successors, (323), 11 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:43,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:43,676 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:43,676 INFO L185 Difference]: Start difference. First operand has 438 places, 408 transitions, 10654 flow. Second operand 11 states and 323 transitions. [2021-03-25 12:16:43,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 412 transitions, 11575 flow [2021-03-25 12:16:43,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 412 transitions, 11469 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-25 12:16:43,969 INFO L241 Difference]: Finished difference. Result has 440 places, 409 transitions, 10657 flow [2021-03-25 12:16:43,969 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10548, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10657, PETRI_PLACES=440, PETRI_TRANSITIONS=409} [2021-03-25 12:16:43,969 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 393 predicate places. [2021-03-25 12:16:43,969 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:43,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 409 transitions, 10657 flow [2021-03-25 12:16:43,969 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 409 transitions, 10657 flow [2021-03-25 12:16:43,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 409 transitions, 10657 flow [2021-03-25 12:16:44,079 INFO L129 PetriNetUnfolder]: 234/663 cut-off events. [2021-03-25 12:16:44,079 INFO L130 PetriNetUnfolder]: For 49085/49192 co-relation queries the response was YES. [2021-03-25 12:16:44,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9415 conditions, 663 events. 234/663 cut-off events. For 49085/49192 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4822 event pairs, 31 based on Foata normal form. 17/677 useless extension candidates. Maximal degree in co-relation 9225. Up to 241 conditions per place. [2021-03-25 12:16:44,092 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:16:44,110 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:44,110 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:44,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 12:16:44,111 INFO L480 AbstractCegarLoop]: Abstraction has has 439 places, 409 transitions, 10657 flow [2021-03-25 12:16:44,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:44,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:44,111 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:44,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-25 12:16:44,111 INFO L428 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:44,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:44,111 INFO L82 PathProgramCache]: Analyzing trace with hash -500125301, now seen corresponding path program 159 times [2021-03-25 12:16:44,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:44,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111934847] [2021-03-25 12:16:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:44,117 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:44,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:44,122 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:44,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:44,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:44,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:44,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:44,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:44,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:44,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:44,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:44,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:44,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:44,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:44,185 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:44,199 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:44,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:44,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:44,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111934847] [2021-03-25 12:16:44,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:44,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:44,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415031069] [2021-03-25 12:16:44,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:44,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:44,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:44,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:44,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:44,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 409 transitions, 10657 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:44,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:44,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:44,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:44,650 INFO L129 PetriNetUnfolder]: 274/736 cut-off events. [2021-03-25 12:16:44,651 INFO L130 PetriNetUnfolder]: For 51107/51130 co-relation queries the response was YES. [2021-03-25 12:16:44,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10823 conditions, 736 events. 274/736 cut-off events. For 51107/51130 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5164 event pairs, 36 based on Foata normal form. 10/744 useless extension candidates. Maximal degree in co-relation 10629. Up to 581 conditions per place. [2021-03-25 12:16:44,662 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 348 selfloop transitions, 54 changer transitions 6/416 dead transitions. [2021-03-25 12:16:44,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 416 transitions, 11588 flow [2021-03-25 12:16:44,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 363 transitions. [2021-03-25 12:16:44,663 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28809523809523807 [2021-03-25 12:16:44,663 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 363 transitions. [2021-03-25 12:16:44,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 363 transitions. [2021-03-25 12:16:44,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:44,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 363 transitions. [2021-03-25 12:16:44,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.25) internal successors, (363), 12 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:44,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:44,664 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:44,664 INFO L185 Difference]: Start difference. First operand has 439 places, 409 transitions, 10657 flow. Second operand 12 states and 363 transitions. [2021-03-25 12:16:44,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 416 transitions, 11588 flow [2021-03-25 12:16:44,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 416 transitions, 11501 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:44,943 INFO L241 Difference]: Finished difference. Result has 444 places, 407 transitions, 10632 flow [2021-03-25 12:16:44,944 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10570, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10632, PETRI_PLACES=444, PETRI_TRANSITIONS=407} [2021-03-25 12:16:44,944 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 397 predicate places. [2021-03-25 12:16:44,944 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:44,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 407 transitions, 10632 flow [2021-03-25 12:16:44,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 407 transitions, 10632 flow [2021-03-25 12:16:44,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 407 transitions, 10632 flow [2021-03-25 12:16:45,049 INFO L129 PetriNetUnfolder]: 235/666 cut-off events. [2021-03-25 12:16:45,050 INFO L130 PetriNetUnfolder]: For 48857/48988 co-relation queries the response was YES. [2021-03-25 12:16:45,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9423 conditions, 666 events. 235/666 cut-off events. For 48857/48988 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4866 event pairs, 21 based on Foata normal form. 21/682 useless extension candidates. Maximal degree in co-relation 9252. Up to 244 conditions per place. [2021-03-25 12:16:45,063 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:16:45,082 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:45,082 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:45,082 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 138 [2021-03-25 12:16:45,083 INFO L480 AbstractCegarLoop]: Abstraction has has 439 places, 407 transitions, 10632 flow [2021-03-25 12:16:45,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:45,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:45,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:45,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-03-25 12:16:45,083 INFO L428 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:45,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:45,083 INFO L82 PathProgramCache]: Analyzing trace with hash -459647495, now seen corresponding path program 160 times [2021-03-25 12:16:45,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:45,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110800983] [2021-03-25 12:16:45,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:45,089 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:45,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:45,094 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:45,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:45,100 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:16:45,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:16:45,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:45,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:45,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:45,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:45,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:45,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:45,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:45,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:45,144 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:45,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:45,147 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:45,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:45,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110800983] [2021-03-25 12:16:45,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:45,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:45,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482691597] [2021-03-25 12:16:45,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:45,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:45,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:45,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:45,151 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:45,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 407 transitions, 10632 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:45,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:45,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:45,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:45,518 INFO L129 PetriNetUnfolder]: 273/731 cut-off events. [2021-03-25 12:16:45,518 INFO L130 PetriNetUnfolder]: For 51605/51620 co-relation queries the response was YES. [2021-03-25 12:16:45,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10857 conditions, 731 events. 273/731 cut-off events. For 51605/51620 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5110 event pairs, 42 based on Foata normal form. 10/740 useless extension candidates. Maximal degree in co-relation 10684. Up to 569 conditions per place. [2021-03-25 12:16:45,529 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 337 selfloop transitions, 66 changer transitions 8/419 dead transitions. [2021-03-25 12:16:45,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 419 transitions, 11887 flow [2021-03-25 12:16:45,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:16:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:16:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 284 transitions. [2021-03-25 12:16:45,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30052910052910053 [2021-03-25 12:16:45,530 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 284 transitions. [2021-03-25 12:16:45,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 284 transitions. [2021-03-25 12:16:45,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:45,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 284 transitions. [2021-03-25 12:16:45,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.555555555555557) internal successors, (284), 9 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:45,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:45,531 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:45,531 INFO L185 Difference]: Start difference. First operand has 439 places, 407 transitions, 10632 flow. Second operand 9 states and 284 transitions. [2021-03-25 12:16:45,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 419 transitions, 11887 flow [2021-03-25 12:16:45,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 419 transitions, 11761 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:45,847 INFO L241 Difference]: Finished difference. Result has 439 places, 408 transitions, 10848 flow [2021-03-25 12:16:45,847 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10510, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10848, PETRI_PLACES=439, PETRI_TRANSITIONS=408} [2021-03-25 12:16:45,847 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 392 predicate places. [2021-03-25 12:16:45,848 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:45,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 408 transitions, 10848 flow [2021-03-25 12:16:45,848 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 408 transitions, 10848 flow [2021-03-25 12:16:45,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 408 transitions, 10848 flow [2021-03-25 12:16:45,952 INFO L129 PetriNetUnfolder]: 228/657 cut-off events. [2021-03-25 12:16:45,952 INFO L130 PetriNetUnfolder]: For 49979/50075 co-relation queries the response was YES. [2021-03-25 12:16:45,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9450 conditions, 657 events. 228/657 cut-off events. For 49979/50075 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4840 event pairs, 26 based on Foata normal form. 21/677 useless extension candidates. Maximal degree in co-relation 9259. Up to 232 conditions per place. [2021-03-25 12:16:45,965 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:16:45,984 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:45,984 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:45,984 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 12:16:45,985 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 408 transitions, 10848 flow [2021-03-25 12:16:45,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:45,985 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:45,985 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:45,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-03-25 12:16:45,985 INFO L428 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:45,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1508839411, now seen corresponding path program 161 times [2021-03-25 12:16:45,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:45,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274505328] [2021-03-25 12:16:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:45,991 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:45,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:45,995 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:45,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:46,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:46,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,031 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:46,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:46,034 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:46,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:46,046 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:46,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:46,050 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:46,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:46,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274505328] [2021-03-25 12:16:46,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:46,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:46,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606445688] [2021-03-25 12:16:46,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:46,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:46,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:46,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:46,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:46,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 408 transitions, 10848 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:46,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:46,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:46,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:46,425 INFO L129 PetriNetUnfolder]: 270/720 cut-off events. [2021-03-25 12:16:46,425 INFO L130 PetriNetUnfolder]: For 53102/53131 co-relation queries the response was YES. [2021-03-25 12:16:46,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10869 conditions, 720 events. 270/720 cut-off events. For 53102/53131 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4977 event pairs, 44 based on Foata normal form. 16/734 useless extension candidates. Maximal degree in co-relation 10674. Up to 557 conditions per place. [2021-03-25 12:16:46,435 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 323 selfloop transitions, 80 changer transitions 2/413 dead transitions. [2021-03-25 12:16:46,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 413 transitions, 11883 flow [2021-03-25 12:16:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:16:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:16:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 281 transitions. [2021-03-25 12:16:46,436 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29735449735449737 [2021-03-25 12:16:46,436 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 281 transitions. [2021-03-25 12:16:46,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 281 transitions. [2021-03-25 12:16:46,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:46,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 281 transitions. [2021-03-25 12:16:46,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.22222222222222) internal successors, (281), 9 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:46,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:46,437 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:46,437 INFO L185 Difference]: Start difference. First operand has 438 places, 408 transitions, 10848 flow. Second operand 9 states and 281 transitions. [2021-03-25 12:16:46,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 413 transitions, 11883 flow [2021-03-25 12:16:46,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 413 transitions, 11517 flow, removed 93 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:46,766 INFO L241 Difference]: Finished difference. Result has 439 places, 410 transitions, 10834 flow [2021-03-25 12:16:46,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10486, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10834, PETRI_PLACES=439, PETRI_TRANSITIONS=410} [2021-03-25 12:16:46,766 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 392 predicate places. [2021-03-25 12:16:46,766 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:46,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 410 transitions, 10834 flow [2021-03-25 12:16:46,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 410 transitions, 10834 flow [2021-03-25 12:16:46,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 410 transitions, 10834 flow [2021-03-25 12:16:46,872 INFO L129 PetriNetUnfolder]: 238/676 cut-off events. [2021-03-25 12:16:46,872 INFO L130 PetriNetUnfolder]: For 47545/47634 co-relation queries the response was YES. [2021-03-25 12:16:46,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9665 conditions, 676 events. 238/676 cut-off events. For 47545/47634 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4941 event pairs, 14 based on Foata normal form. 14/688 useless extension candidates. Maximal degree in co-relation 9475. Up to 240 conditions per place. [2021-03-25 12:16:46,886 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:16:46,906 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:46,906 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:46,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-25 12:16:46,906 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 410 transitions, 10834 flow [2021-03-25 12:16:46,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:46,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:46,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:46,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-03-25 12:16:46,907 INFO L428 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1439854573, now seen corresponding path program 162 times [2021-03-25 12:16:46,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:46,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453385840] [2021-03-25 12:16:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:46,913 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:46,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:46,917 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:46,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:46,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:46,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:46,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:46,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:46,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:46,992 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:46,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:46,996 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:46,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:46,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453385840] [2021-03-25 12:16:46,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:46,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:46,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421846061] [2021-03-25 12:16:46,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:46,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:46,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:46,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:46,999 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:46,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 410 transitions, 10834 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:47,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:47,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:47,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:47,499 INFO L129 PetriNetUnfolder]: 271/720 cut-off events. [2021-03-25 12:16:47,499 INFO L130 PetriNetUnfolder]: For 50992/51015 co-relation queries the response was YES. [2021-03-25 12:16:47,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10786 conditions, 720 events. 271/720 cut-off events. For 50992/51015 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4984 event pairs, 43 based on Foata normal form. 10/728 useless extension candidates. Maximal degree in co-relation 10592. Up to 547 conditions per place. [2021-03-25 12:16:47,510 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 295 selfloop transitions, 111 changer transitions 4/418 dead transitions. [2021-03-25 12:16:47,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 418 transitions, 11908 flow [2021-03-25 12:16:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:16:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:16:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2021-03-25 12:16:47,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2915750915750916 [2021-03-25 12:16:47,511 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 398 transitions. [2021-03-25 12:16:47,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 398 transitions. [2021-03-25 12:16:47,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:47,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 398 transitions. [2021-03-25 12:16:47,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.615384615384617) internal successors, (398), 13 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:47,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:47,512 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:47,512 INFO L185 Difference]: Start difference. First operand has 438 places, 410 transitions, 10834 flow. Second operand 13 states and 398 transitions. [2021-03-25 12:16:47,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 418 transitions, 11908 flow [2021-03-25 12:16:47,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 418 transitions, 11606 flow, removed 74 selfloop flow, removed 7 redundant places. [2021-03-25 12:16:47,812 INFO L241 Difference]: Finished difference. Result has 448 places, 413 transitions, 10944 flow [2021-03-25 12:16:47,812 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10542, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10944, PETRI_PLACES=448, PETRI_TRANSITIONS=413} [2021-03-25 12:16:47,812 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 401 predicate places. [2021-03-25 12:16:47,812 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:47,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 448 places, 413 transitions, 10944 flow [2021-03-25 12:16:47,813 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 448 places, 413 transitions, 10944 flow [2021-03-25 12:16:47,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 447 places, 413 transitions, 10944 flow [2021-03-25 12:16:47,924 INFO L129 PetriNetUnfolder]: 230/656 cut-off events. [2021-03-25 12:16:47,924 INFO L130 PetriNetUnfolder]: For 45126/45237 co-relation queries the response was YES. [2021-03-25 12:16:47,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9339 conditions, 656 events. 230/656 cut-off events. For 45126/45237 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4733 event pairs, 19 based on Foata normal form. 20/674 useless extension candidates. Maximal degree in co-relation 9145. Up to 230 conditions per place. [2021-03-25 12:16:47,937 INFO L142 LiptonReduction]: Number of co-enabled transitions 504 [2021-03-25 12:16:47,958 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:47,958 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:47,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-03-25 12:16:47,958 INFO L480 AbstractCegarLoop]: Abstraction has has 447 places, 413 transitions, 10944 flow [2021-03-25 12:16:47,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:47,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:47,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:47,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-03-25 12:16:47,958 INFO L428 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:47,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:47,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1352416847, now seen corresponding path program 163 times [2021-03-25 12:16:47,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:47,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441708258] [2021-03-25 12:16:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:47,965 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:47,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:47,969 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:47,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:47,975 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:16:47,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:16:47,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:47,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:47,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:47,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:47,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:47,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:47,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:48,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:48,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:48,019 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:48,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:48,024 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:48,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:48,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:48,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441708258] [2021-03-25 12:16:48,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:48,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:16:48,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686953222] [2021-03-25 12:16:48,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:16:48,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:48,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:16:48,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:16:48,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:48,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 413 transitions, 10944 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:48,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:48,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:48,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:48,365 INFO L129 PetriNetUnfolder]: 269/715 cut-off events. [2021-03-25 12:16:48,365 INFO L130 PetriNetUnfolder]: For 49933/49970 co-relation queries the response was YES. [2021-03-25 12:16:48,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10701 conditions, 715 events. 269/715 cut-off events. For 49933/49970 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4966 event pairs, 42 based on Foata normal form. 15/728 useless extension candidates. Maximal degree in co-relation 10503. Up to 589 conditions per place. [2021-03-25 12:16:48,376 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 382 selfloop transitions, 26 changer transitions 2/418 dead transitions. [2021-03-25 12:16:48,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 418 transitions, 11840 flow [2021-03-25 12:16:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:16:48,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:16:48,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 273 transitions. [2021-03-25 12:16:48,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28888888888888886 [2021-03-25 12:16:48,377 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 273 transitions. [2021-03-25 12:16:48,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 273 transitions. [2021-03-25 12:16:48,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:48,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 273 transitions. [2021-03-25 12:16:48,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.333333333333332) internal successors, (273), 9 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:48,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:48,378 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 105.0) internal successors, (1050), 10 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:48,378 INFO L185 Difference]: Start difference. First operand has 447 places, 413 transitions, 10944 flow. Second operand 9 states and 273 transitions. [2021-03-25 12:16:48,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 418 transitions, 11840 flow [2021-03-25 12:16:48,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 418 transitions, 11485 flow, removed 36 selfloop flow, removed 11 redundant places. [2021-03-25 12:16:48,694 INFO L241 Difference]: Finished difference. Result has 447 places, 413 transitions, 10673 flow [2021-03-25 12:16:48,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10591, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10673, PETRI_PLACES=447, PETRI_TRANSITIONS=413} [2021-03-25 12:16:48,694 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 400 predicate places. [2021-03-25 12:16:48,694 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:48,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 447 places, 413 transitions, 10673 flow [2021-03-25 12:16:48,695 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 447 places, 413 transitions, 10673 flow [2021-03-25 12:16:48,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 413 transitions, 10673 flow [2021-03-25 12:16:48,802 INFO L129 PetriNetUnfolder]: 229/657 cut-off events. [2021-03-25 12:16:48,802 INFO L130 PetriNetUnfolder]: For 44682/44781 co-relation queries the response was YES. [2021-03-25 12:16:48,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9163 conditions, 657 events. 229/657 cut-off events. For 44682/44781 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4809 event pairs, 26 based on Foata normal form. 20/676 useless extension candidates. Maximal degree in co-relation 8973. Up to 224 conditions per place. [2021-03-25 12:16:48,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 12:16:48,837 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:48,837 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:48,838 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-03-25 12:16:48,838 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 413 transitions, 10673 flow [2021-03-25 12:16:48,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:48,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:48,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:48,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-03-25 12:16:48,838 INFO L428 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:48,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:48,838 INFO L82 PathProgramCache]: Analyzing trace with hash -146148957, now seen corresponding path program 164 times [2021-03-25 12:16:48,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:48,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719773031] [2021-03-25 12:16:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:48,845 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:48,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:48,849 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:48,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:48,856 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:16:48,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:16:48,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:48,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:48,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:48,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:48,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:48,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:48,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:48,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:48,901 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:48,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:48,907 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:48,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:48,920 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:48,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:48,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719773031] [2021-03-25 12:16:48,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:48,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:48,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747518001] [2021-03-25 12:16:48,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:48,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:48,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:48,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:48,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:48,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 413 transitions, 10673 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:48,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:48,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:48,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:49,269 INFO L129 PetriNetUnfolder]: 268/710 cut-off events. [2021-03-25 12:16:49,269 INFO L130 PetriNetUnfolder]: For 48636/48659 co-relation queries the response was YES. [2021-03-25 12:16:49,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10492 conditions, 710 events. 268/710 cut-off events. For 48636/48659 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4909 event pairs, 43 based on Foata normal form. 10/718 useless extension candidates. Maximal degree in co-relation 10298. Up to 589 conditions per place. [2021-03-25 12:16:49,304 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 378 selfloop transitions, 25 changer transitions 3/414 dead transitions. [2021-03-25 12:16:49,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 414 transitions, 11489 flow [2021-03-25 12:16:49,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 322 transitions. [2021-03-25 12:16:49,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2787878787878788 [2021-03-25 12:16:49,305 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 322 transitions. [2021-03-25 12:16:49,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 322 transitions. [2021-03-25 12:16:49,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:49,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 322 transitions. [2021-03-25 12:16:49,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.272727272727273) internal successors, (322), 11 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:49,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:49,306 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:49,306 INFO L185 Difference]: Start difference. First operand has 446 places, 413 transitions, 10673 flow. Second operand 11 states and 322 transitions. [2021-03-25 12:16:49,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 414 transitions, 11489 flow [2021-03-25 12:16:49,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 414 transitions, 11361 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-03-25 12:16:49,605 INFO L241 Difference]: Finished difference. Result has 448 places, 410 transitions, 10516 flow [2021-03-25 12:16:49,605 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10545, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10516, PETRI_PLACES=448, PETRI_TRANSITIONS=410} [2021-03-25 12:16:49,605 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 401 predicate places. [2021-03-25 12:16:49,605 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:49,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 448 places, 410 transitions, 10516 flow [2021-03-25 12:16:49,606 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 448 places, 410 transitions, 10516 flow [2021-03-25 12:16:49,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 445 places, 410 transitions, 10516 flow [2021-03-25 12:16:49,712 INFO L129 PetriNetUnfolder]: 234/668 cut-off events. [2021-03-25 12:16:49,712 INFO L130 PetriNetUnfolder]: For 42876/42882 co-relation queries the response was YES. [2021-03-25 12:16:49,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9352 conditions, 668 events. 234/668 cut-off events. For 42876/42882 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4849 event pairs, 33 based on Foata normal form. 5/671 useless extension candidates. Maximal degree in co-relation 9180. Up to 232 conditions per place. [2021-03-25 12:16:49,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:16:49,755 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:49,755 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:49,755 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 150 [2021-03-25 12:16:49,756 INFO L480 AbstractCegarLoop]: Abstraction has has 445 places, 410 transitions, 10516 flow [2021-03-25 12:16:49,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:49,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:49,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:49,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-03-25 12:16:49,756 INFO L428 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:49,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1962343371, now seen corresponding path program 165 times [2021-03-25 12:16:49,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:49,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955502780] [2021-03-25 12:16:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:49,764 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:49,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:49,769 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:49,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:49,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:49,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:49,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:49,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:49,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:49,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:49,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:49,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:49,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:49,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:49,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:49,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:49,854 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:49,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:49,875 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:49,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:49,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955502780] [2021-03-25 12:16:49,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:49,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:16:49,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893130110] [2021-03-25 12:16:49,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:16:49,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:49,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:16:49,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:16:49,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:49,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 410 transitions, 10516 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:49,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:49,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:49,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:50,464 INFO L129 PetriNetUnfolder]: 269/717 cut-off events. [2021-03-25 12:16:50,464 INFO L130 PetriNetUnfolder]: For 48029/48052 co-relation queries the response was YES. [2021-03-25 12:16:50,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10522 conditions, 717 events. 269/717 cut-off events. For 48029/48052 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5000 event pairs, 29 based on Foata normal form. 12/728 useless extension candidates. Maximal degree in co-relation 10348. Up to 545 conditions per place. [2021-03-25 12:16:50,475 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 319 selfloop transitions, 88 changer transitions 5/420 dead transitions. [2021-03-25 12:16:50,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 420 transitions, 11598 flow [2021-03-25 12:16:50,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:16:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:16:50,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 428 transitions. [2021-03-25 12:16:50,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.291156462585034 [2021-03-25 12:16:50,476 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 428 transitions. [2021-03-25 12:16:50,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 428 transitions. [2021-03-25 12:16:50,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:50,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 428 transitions. [2021-03-25 12:16:50,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.571428571428573) internal successors, (428), 14 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:50,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:50,477 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 105.0) internal successors, (1575), 15 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:50,477 INFO L185 Difference]: Start difference. First operand has 445 places, 410 transitions, 10516 flow. Second operand 14 states and 428 transitions. [2021-03-25 12:16:50,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 420 transitions, 11598 flow [2021-03-25 12:16:50,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 420 transitions, 11488 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:50,792 INFO L241 Difference]: Finished difference. Result has 450 places, 412 transitions, 10719 flow [2021-03-25 12:16:50,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10406, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10719, PETRI_PLACES=450, PETRI_TRANSITIONS=412} [2021-03-25 12:16:50,792 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 403 predicate places. [2021-03-25 12:16:50,792 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:50,792 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 412 transitions, 10719 flow [2021-03-25 12:16:50,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 412 transitions, 10719 flow [2021-03-25 12:16:50,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 448 places, 412 transitions, 10719 flow [2021-03-25 12:16:50,895 INFO L129 PetriNetUnfolder]: 227/651 cut-off events. [2021-03-25 12:16:50,895 INFO L130 PetriNetUnfolder]: For 44190/44252 co-relation queries the response was YES. [2021-03-25 12:16:50,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9212 conditions, 651 events. 227/651 cut-off events. For 44190/44252 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4757 event pairs, 38 based on Foata normal form. 18/667 useless extension candidates. Maximal degree in co-relation 9017. Up to 224 conditions per place. [2021-03-25 12:16:50,907 INFO L142 LiptonReduction]: Number of co-enabled transitions 506 [2021-03-25 12:16:50,928 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:50,928 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:50,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 12:16:50,928 INFO L480 AbstractCegarLoop]: Abstraction has has 448 places, 412 transitions, 10719 flow [2021-03-25 12:16:50,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:50,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:50,928 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:50,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-03-25 12:16:50,928 INFO L428 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:50,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:50,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1016466621, now seen corresponding path program 166 times [2021-03-25 12:16:50,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:50,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103675957] [2021-03-25 12:16:50,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:50,940 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:50,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:50,945 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:50,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:50,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:50,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:50,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:50,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:50,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:50,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:50,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:50,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:51,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:51,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:51,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:51,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:51,041 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:51,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:51,058 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:51,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:51,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103675957] [2021-03-25 12:16:51,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:51,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:16:51,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772618376] [2021-03-25 12:16:51,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:16:51,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:51,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:16:51,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:16:51,062 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:51,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 412 transitions, 10719 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:51,062 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:51,062 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:51,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:51,557 INFO L129 PetriNetUnfolder]: 267/718 cut-off events. [2021-03-25 12:16:51,558 INFO L130 PetriNetUnfolder]: For 49669/49692 co-relation queries the response was YES. [2021-03-25 12:16:51,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10608 conditions, 718 events. 267/718 cut-off events. For 49669/49692 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5030 event pairs, 40 based on Foata normal form. 12/729 useless extension candidates. Maximal degree in co-relation 10409. Up to 550 conditions per place. [2021-03-25 12:16:51,568 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 323 selfloop transitions, 80 changer transitions 8/419 dead transitions. [2021-03-25 12:16:51,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 419 transitions, 11687 flow [2021-03-25 12:16:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:16:51,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:16:51,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2021-03-25 12:16:51,569 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2915750915750916 [2021-03-25 12:16:51,569 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 398 transitions. [2021-03-25 12:16:51,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 398 transitions. [2021-03-25 12:16:51,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:51,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 398 transitions. [2021-03-25 12:16:51,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.615384615384617) internal successors, (398), 13 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:51,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:51,570 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:51,570 INFO L185 Difference]: Start difference. First operand has 448 places, 412 transitions, 10719 flow. Second operand 13 states and 398 transitions. [2021-03-25 12:16:51,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 419 transitions, 11687 flow [2021-03-25 12:16:51,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 419 transitions, 11367 flow, removed 41 selfloop flow, removed 14 redundant places. [2021-03-25 12:16:51,865 INFO L241 Difference]: Finished difference. Result has 450 places, 408 transitions, 10442 flow [2021-03-25 12:16:51,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10401, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10442, PETRI_PLACES=450, PETRI_TRANSITIONS=408} [2021-03-25 12:16:51,866 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 403 predicate places. [2021-03-25 12:16:51,866 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:51,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 408 transitions, 10442 flow [2021-03-25 12:16:51,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 408 transitions, 10442 flow [2021-03-25 12:16:51,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 443 places, 408 transitions, 10442 flow [2021-03-25 12:16:51,964 INFO L129 PetriNetUnfolder]: 223/649 cut-off events. [2021-03-25 12:16:51,965 INFO L130 PetriNetUnfolder]: For 43548/43608 co-relation queries the response was YES. [2021-03-25 12:16:51,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9029 conditions, 649 events. 223/649 cut-off events. For 43548/43608 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 4794 event pairs, 38 based on Foata normal form. 16/663 useless extension candidates. Maximal degree in co-relation 8857. Up to 218 conditions per place. [2021-03-25 12:16:51,978 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 12:16:51,997 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:51,997 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:51,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-03-25 12:16:51,997 INFO L480 AbstractCegarLoop]: Abstraction has has 443 places, 408 transitions, 10442 flow [2021-03-25 12:16:51,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:51,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:51,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:51,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-03-25 12:16:51,998 INFO L428 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:51,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:51,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1596334615, now seen corresponding path program 167 times [2021-03-25 12:16:51,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:51,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544528413] [2021-03-25 12:16:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:52,004 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:52,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:52,008 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:52,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:52,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:52,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:52,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:52,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:52,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:52,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:52,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:52,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:52,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:52,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:52,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:52,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:52,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:52,083 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:52,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:52,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544528413] [2021-03-25 12:16:52,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:52,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:52,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503825477] [2021-03-25 12:16:52,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:52,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:52,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:52,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:52,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:52,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 408 transitions, 10442 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:52,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:52,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:52,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:52,608 INFO L129 PetriNetUnfolder]: 265/712 cut-off events. [2021-03-25 12:16:52,609 INFO L130 PetriNetUnfolder]: For 47014/47037 co-relation queries the response was YES. [2021-03-25 12:16:52,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10432 conditions, 712 events. 265/712 cut-off events. For 47014/47037 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4983 event pairs, 21 based on Foata normal form. 14/726 useless extension candidates. Maximal degree in co-relation 10258. Up to 526 conditions per place. [2021-03-25 12:16:52,619 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 308 selfloop transitions, 93 changer transitions 7/416 dead transitions. [2021-03-25 12:16:52,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 416 transitions, 11414 flow [2021-03-25 12:16:52,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:16:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:16:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 403 transitions. [2021-03-25 12:16:52,620 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29523809523809524 [2021-03-25 12:16:52,620 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 403 transitions. [2021-03-25 12:16:52,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 403 transitions. [2021-03-25 12:16:52,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:52,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 403 transitions. [2021-03-25 12:16:52,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.0) internal successors, (403), 13 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:52,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:52,621 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 105.0) internal successors, (1470), 14 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:52,621 INFO L185 Difference]: Start difference. First operand has 443 places, 408 transitions, 10442 flow. Second operand 13 states and 403 transitions. [2021-03-25 12:16:52,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 416 transitions, 11414 flow [2021-03-25 12:16:52,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 416 transitions, 11230 flow, removed 12 selfloop flow, removed 13 redundant places. [2021-03-25 12:16:52,891 INFO L241 Difference]: Finished difference. Result has 446 places, 405 transitions, 10404 flow [2021-03-25 12:16:52,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10266, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10404, PETRI_PLACES=446, PETRI_TRANSITIONS=405} [2021-03-25 12:16:52,891 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 399 predicate places. [2021-03-25 12:16:52,891 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:52,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 446 places, 405 transitions, 10404 flow [2021-03-25 12:16:52,891 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 446 places, 405 transitions, 10404 flow [2021-03-25 12:16:52,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 440 places, 405 transitions, 10404 flow [2021-03-25 12:16:52,989 INFO L129 PetriNetUnfolder]: 223/643 cut-off events. [2021-03-25 12:16:52,990 INFO L130 PetriNetUnfolder]: For 45093/45155 co-relation queries the response was YES. [2021-03-25 12:16:52,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9008 conditions, 643 events. 223/643 cut-off events. For 45093/45155 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4652 event pairs, 28 based on Foata normal form. 18/659 useless extension candidates. Maximal degree in co-relation 8837. Up to 220 conditions per place. [2021-03-25 12:16:53,001 INFO L142 LiptonReduction]: Number of co-enabled transitions 496 [2021-03-25 12:16:53,020 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:53,020 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:53,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-25 12:16:53,020 INFO L480 AbstractCegarLoop]: Abstraction has has 440 places, 405 transitions, 10404 flow [2021-03-25 12:16:53,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:53,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:53,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:53,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-03-25 12:16:53,021 INFO L428 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:53,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1144565681, now seen corresponding path program 168 times [2021-03-25 12:16:53,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:53,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865973709] [2021-03-25 12:16:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:53,026 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:53,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:53,031 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:53,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:53,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:53,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:53,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:53,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:53,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:53,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:53,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:16:53,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:53,096 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:53,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865973709] [2021-03-25 12:16:53,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:53,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:53,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471628773] [2021-03-25 12:16:53,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:53,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:53,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:53,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:53,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:53,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 405 transitions, 10404 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:53,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:53,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:53,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:53,499 INFO L129 PetriNetUnfolder]: 263/711 cut-off events. [2021-03-25 12:16:53,499 INFO L130 PetriNetUnfolder]: For 49270/49293 co-relation queries the response was YES. [2021-03-25 12:16:53,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10386 conditions, 711 events. 263/711 cut-off events. For 49270/49293 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4956 event pairs, 40 based on Foata normal form. 12/722 useless extension candidates. Maximal degree in co-relation 10213. Up to 551 conditions per place. [2021-03-25 12:16:53,510 INFO L132 encePairwiseOnDemand]: 93/105 looper letters, 335 selfloop transitions, 62 changer transitions 8/413 dead transitions. [2021-03-25 12:16:53,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 413 transitions, 11335 flow [2021-03-25 12:16:53,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 367 transitions. [2021-03-25 12:16:53,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2912698412698413 [2021-03-25 12:16:53,511 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 367 transitions. [2021-03-25 12:16:53,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 367 transitions. [2021-03-25 12:16:53,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:53,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 367 transitions. [2021-03-25 12:16:53,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.583333333333332) internal successors, (367), 12 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:53,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:53,512 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:53,512 INFO L185 Difference]: Start difference. First operand has 440 places, 405 transitions, 10404 flow. Second operand 12 states and 367 transitions. [2021-03-25 12:16:53,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 413 transitions, 11335 flow [2021-03-25 12:16:53,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 413 transitions, 11096 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:53,797 INFO L241 Difference]: Finished difference. Result has 443 places, 401 transitions, 10238 flow [2021-03-25 12:16:53,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10169, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10238, PETRI_PLACES=443, PETRI_TRANSITIONS=401} [2021-03-25 12:16:53,798 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 396 predicate places. [2021-03-25 12:16:53,798 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:53,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 401 transitions, 10238 flow [2021-03-25 12:16:53,798 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 401 transitions, 10238 flow [2021-03-25 12:16:53,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 401 transitions, 10238 flow [2021-03-25 12:16:53,895 INFO L129 PetriNetUnfolder]: 222/640 cut-off events. [2021-03-25 12:16:53,895 INFO L130 PetriNetUnfolder]: For 44471/44547 co-relation queries the response was YES. [2021-03-25 12:16:53,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8905 conditions, 640 events. 222/640 cut-off events. For 44471/44547 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4596 event pairs, 23 based on Foata normal form. 18/656 useless extension candidates. Maximal degree in co-relation 8735. Up to 221 conditions per place. [2021-03-25 12:16:53,908 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:53,927 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:53,927 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:53,927 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-25 12:16:53,927 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 401 transitions, 10238 flow [2021-03-25 12:16:53,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:53,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:53,928 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:53,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-03-25 12:16:53,928 INFO L428 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:53,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1066874955, now seen corresponding path program 169 times [2021-03-25 12:16:53,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:53,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614227427] [2021-03-25 12:16:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:53,934 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:53,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:53,938 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:53,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:53,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:53,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:53,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:53,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:53,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:53,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:53,990 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:53,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:53,997 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:54,010 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:54,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:54,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614227427] [2021-03-25 12:16:54,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:54,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:54,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884632642] [2021-03-25 12:16:54,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:54,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:54,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:54,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:54,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:54,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 401 transitions, 10238 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:54,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:54,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:54,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:54,392 INFO L129 PetriNetUnfolder]: 262/714 cut-off events. [2021-03-25 12:16:54,392 INFO L130 PetriNetUnfolder]: For 47606/47629 co-relation queries the response was YES. [2021-03-25 12:16:54,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10292 conditions, 714 events. 262/714 cut-off events. For 47606/47629 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4986 event pairs, 40 based on Foata normal form. 10/722 useless extension candidates. Maximal degree in co-relation 10120. Up to 562 conditions per place. [2021-03-25 12:16:54,402 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 340 selfloop transitions, 55 changer transitions 6/409 dead transitions. [2021-03-25 12:16:54,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 409 transitions, 11191 flow [2021-03-25 12:16:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 333 transitions. [2021-03-25 12:16:54,403 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2883116883116883 [2021-03-25 12:16:54,403 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 333 transitions. [2021-03-25 12:16:54,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 333 transitions. [2021-03-25 12:16:54,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:54,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 333 transitions. [2021-03-25 12:16:54,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.272727272727273) internal successors, (333), 11 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:54,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:54,404 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:54,404 INFO L185 Difference]: Start difference. First operand has 436 places, 401 transitions, 10238 flow. Second operand 11 states and 333 transitions. [2021-03-25 12:16:54,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 409 transitions, 11191 flow [2021-03-25 12:16:54,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 409 transitions, 11025 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 12:16:54,686 INFO L241 Difference]: Finished difference. Result has 440 places, 401 transitions, 10180 flow [2021-03-25 12:16:54,686 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10072, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10180, PETRI_PLACES=440, PETRI_TRANSITIONS=401} [2021-03-25 12:16:54,686 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 393 predicate places. [2021-03-25 12:16:54,686 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:54,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 401 transitions, 10180 flow [2021-03-25 12:16:54,686 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 401 transitions, 10180 flow [2021-03-25 12:16:54,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 437 places, 401 transitions, 10180 flow [2021-03-25 12:16:54,792 INFO L129 PetriNetUnfolder]: 221/642 cut-off events. [2021-03-25 12:16:54,792 INFO L130 PetriNetUnfolder]: For 43027/43088 co-relation queries the response was YES. [2021-03-25 12:16:54,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8859 conditions, 642 events. 221/642 cut-off events. For 43027/43088 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4683 event pairs, 25 based on Foata normal form. 21/661 useless extension candidates. Maximal degree in co-relation 8689. Up to 220 conditions per place. [2021-03-25 12:16:54,804 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:54,823 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:54,823 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:54,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-25 12:16:54,823 INFO L480 AbstractCegarLoop]: Abstraction has has 437 places, 401 transitions, 10180 flow [2021-03-25 12:16:54,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:54,823 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:54,823 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:54,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-03-25 12:16:54,823 INFO L428 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:54,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1596776145, now seen corresponding path program 170 times [2021-03-25 12:16:54,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:54,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169221566] [2021-03-25 12:16:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:54,829 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:54,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:54,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:54,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:54,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:54,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:54,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:54,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:54,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:54,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:54,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:54,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:54,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:54,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:54,894 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:54,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:54,908 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:54,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:54,912 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:54,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:54,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169221566] [2021-03-25 12:16:54,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:54,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:54,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254537601] [2021-03-25 12:16:54,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:54,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:54,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:54,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:54,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:54,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 401 transitions, 10180 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:54,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:54,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:54,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:55,338 INFO L129 PetriNetUnfolder]: 260/702 cut-off events. [2021-03-25 12:16:55,339 INFO L130 PetriNetUnfolder]: For 47752/47798 co-relation queries the response was YES. [2021-03-25 12:16:55,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10178 conditions, 702 events. 260/702 cut-off events. For 47752/47798 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4872 event pairs, 40 based on Foata normal form. 11/710 useless extension candidates. Maximal degree in co-relation 10006. Up to 542 conditions per place. [2021-03-25 12:16:55,349 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 310 selfloop transitions, 82 changer transitions 4/404 dead transitions. [2021-03-25 12:16:55,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 404 transitions, 11053 flow [2021-03-25 12:16:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 338 transitions. [2021-03-25 12:16:55,350 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29264069264069265 [2021-03-25 12:16:55,350 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 338 transitions. [2021-03-25 12:16:55,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 338 transitions. [2021-03-25 12:16:55,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:55,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 338 transitions. [2021-03-25 12:16:55,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.727272727272727) internal successors, (338), 11 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:55,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:55,351 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:55,351 INFO L185 Difference]: Start difference. First operand has 437 places, 401 transitions, 10180 flow. Second operand 11 states and 338 transitions. [2021-03-25 12:16:55,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 404 transitions, 11053 flow [2021-03-25 12:16:55,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 404 transitions, 10915 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-25 12:16:55,613 INFO L241 Difference]: Finished difference. Result has 437 places, 399 transitions, 10174 flow [2021-03-25 12:16:55,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10042, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10174, PETRI_PLACES=437, PETRI_TRANSITIONS=399} [2021-03-25 12:16:55,613 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 390 predicate places. [2021-03-25 12:16:55,613 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:55,614 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 399 transitions, 10174 flow [2021-03-25 12:16:55,614 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 399 transitions, 10174 flow [2021-03-25 12:16:55,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 399 transitions, 10174 flow [2021-03-25 12:16:55,710 INFO L129 PetriNetUnfolder]: 221/643 cut-off events. [2021-03-25 12:16:55,710 INFO L130 PetriNetUnfolder]: For 42539/42644 co-relation queries the response was YES. [2021-03-25 12:16:55,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8877 conditions, 643 events. 221/643 cut-off events. For 42539/42644 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4695 event pairs, 26 based on Foata normal form. 21/659 useless extension candidates. Maximal degree in co-relation 8690. Up to 221 conditions per place. [2021-03-25 12:16:55,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 488 [2021-03-25 12:16:55,740 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:55,740 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:55,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 12:16:55,740 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 399 transitions, 10174 flow [2021-03-25 12:16:55,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:55,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:55,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:55,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-03-25 12:16:55,740 INFO L428 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:55,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:55,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2104234353, now seen corresponding path program 171 times [2021-03-25 12:16:55,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:55,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266117876] [2021-03-25 12:16:55,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:55,749 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:55,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:55,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:55,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:55,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:55,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:55,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:55,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:55,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:55,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:55,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:55,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:55,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:55,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:55,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:55,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:55,816 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:55,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:55,830 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:55,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:55,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266117876] [2021-03-25 12:16:55,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:55,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:55,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966124804] [2021-03-25 12:16:55,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:55,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:55,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:55,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:55,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:55,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 399 transitions, 10174 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:55,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:55,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:55,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:56,177 INFO L129 PetriNetUnfolder]: 258/702 cut-off events. [2021-03-25 12:16:56,178 INFO L130 PetriNetUnfolder]: For 46925/46948 co-relation queries the response was YES. [2021-03-25 12:16:56,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10168 conditions, 702 events. 258/702 cut-off events. For 46925/46948 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4872 event pairs, 42 based on Foata normal form. 8/707 useless extension candidates. Maximal degree in co-relation 9975. Up to 568 conditions per place. [2021-03-25 12:16:56,188 INFO L132 encePairwiseOnDemand]: 94/105 looper letters, 346 selfloop transitions, 42 changer transitions 5/401 dead transitions. [2021-03-25 12:16:56,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 401 transitions, 10998 flow [2021-03-25 12:16:56,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 327 transitions. [2021-03-25 12:16:56,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2831168831168831 [2021-03-25 12:16:56,189 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 327 transitions. [2021-03-25 12:16:56,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 327 transitions. [2021-03-25 12:16:56,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:56,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 327 transitions. [2021-03-25 12:16:56,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.727272727272727) internal successors, (327), 11 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:56,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:56,190 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:56,190 INFO L185 Difference]: Start difference. First operand has 436 places, 399 transitions, 10174 flow. Second operand 11 states and 327 transitions. [2021-03-25 12:16:56,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 401 transitions, 10998 flow [2021-03-25 12:16:56,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 401 transitions, 10859 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:56,461 INFO L241 Difference]: Finished difference. Result has 440 places, 395 transitions, 10070 flow [2021-03-25 12:16:56,461 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10070, PETRI_PLACES=440, PETRI_TRANSITIONS=395} [2021-03-25 12:16:56,461 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 393 predicate places. [2021-03-25 12:16:56,462 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:56,462 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 395 transitions, 10070 flow [2021-03-25 12:16:56,462 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 395 transitions, 10070 flow [2021-03-25 12:16:56,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 395 transitions, 10070 flow [2021-03-25 12:16:56,556 INFO L129 PetriNetUnfolder]: 220/636 cut-off events. [2021-03-25 12:16:56,556 INFO L130 PetriNetUnfolder]: For 43051/43170 co-relation queries the response was YES. [2021-03-25 12:16:56,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8785 conditions, 636 events. 220/636 cut-off events. For 43051/43170 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4638 event pairs, 26 based on Foata normal form. 21/652 useless extension candidates. Maximal degree in co-relation 8617. Up to 219 conditions per place. [2021-03-25 12:16:56,567 INFO L142 LiptonReduction]: Number of co-enabled transitions 486 [2021-03-25 12:16:56,585 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:56,585 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:56,585 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-25 12:16:56,585 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 395 transitions, 10070 flow [2021-03-25 12:16:56,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:56,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:56,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:56,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-03-25 12:16:56,585 INFO L428 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:56,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:56,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1900329605, now seen corresponding path program 172 times [2021-03-25 12:16:56,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:56,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846783128] [2021-03-25 12:16:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:56,591 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:56,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:56,595 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:56,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:56,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:56,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:56,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:56,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:56,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:56,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:56,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:56,642 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:56,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:56,644 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:56,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:56,657 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:56,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:56,661 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:56,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:56,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:56,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846783128] [2021-03-25 12:16:56,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:56,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:16:56,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083005015] [2021-03-25 12:16:56,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:16:56,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:56,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:16:56,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:16:56,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:56,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 395 transitions, 10070 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:56,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:56,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:56,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:57,040 INFO L129 PetriNetUnfolder]: 259/698 cut-off events. [2021-03-25 12:16:57,040 INFO L130 PetriNetUnfolder]: For 46556/46579 co-relation queries the response was YES. [2021-03-25 12:16:57,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10125 conditions, 698 events. 259/698 cut-off events. For 46556/46579 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4792 event pairs, 37 based on Foata normal form. 10/706 useless extension candidates. Maximal degree in co-relation 9955. Up to 514 conditions per place. [2021-03-25 12:16:57,050 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 285 selfloop transitions, 106 changer transitions 3/402 dead transitions. [2021-03-25 12:16:57,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 402 transitions, 11084 flow [2021-03-25 12:16:57,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:16:57,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:16:57,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2021-03-25 12:16:57,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29523809523809524 [2021-03-25 12:16:57,052 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 310 transitions. [2021-03-25 12:16:57,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 310 transitions. [2021-03-25 12:16:57,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:57,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 310 transitions. [2021-03-25 12:16:57,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:57,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:57,053 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 105.0) internal successors, (1155), 11 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:57,053 INFO L185 Difference]: Start difference. First operand has 433 places, 395 transitions, 10070 flow. Second operand 10 states and 310 transitions. [2021-03-25 12:16:57,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 402 transitions, 11084 flow [2021-03-25 12:16:57,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 402 transitions, 10947 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-03-25 12:16:57,337 INFO L241 Difference]: Finished difference. Result has 433 places, 398 transitions, 10342 flow [2021-03-25 12:16:57,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9933, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10342, PETRI_PLACES=433, PETRI_TRANSITIONS=398} [2021-03-25 12:16:57,337 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 386 predicate places. [2021-03-25 12:16:57,337 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:57,337 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 398 transitions, 10342 flow [2021-03-25 12:16:57,337 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 398 transitions, 10342 flow [2021-03-25 12:16:57,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 398 transitions, 10342 flow [2021-03-25 12:16:57,432 INFO L129 PetriNetUnfolder]: 218/636 cut-off events. [2021-03-25 12:16:57,432 INFO L130 PetriNetUnfolder]: For 43323/43403 co-relation queries the response was YES. [2021-03-25 12:16:57,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8905 conditions, 636 events. 218/636 cut-off events. For 43323/43403 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4595 event pairs, 28 based on Foata normal form. 21/655 useless extension candidates. Maximal degree in co-relation 8719. Up to 216 conditions per place. [2021-03-25 12:16:57,442 INFO L142 LiptonReduction]: Number of co-enabled transitions 486 [2021-03-25 12:16:57,461 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:57,461 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:57,461 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-03-25 12:16:57,462 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 398 transitions, 10342 flow [2021-03-25 12:16:57,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:57,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:57,462 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:57,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-03-25 12:16:57,462 INFO L428 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:57,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:57,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1121308221, now seen corresponding path program 173 times [2021-03-25 12:16:57,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:57,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138473571] [2021-03-25 12:16:57,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:57,484 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:57,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:57,489 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:57,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:57,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:57,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:57,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:57,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:57,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:57,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:57,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:57,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:57,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:57,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:57,563 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:57,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:57,574 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:57,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:57,593 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:57,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:57,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138473571] [2021-03-25 12:16:57,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:57,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:57,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070048101] [2021-03-25 12:16:57,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:57,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:57,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:57,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:57,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:57,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 398 transitions, 10342 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:57,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:57,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:57,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:58,098 INFO L129 PetriNetUnfolder]: 257/695 cut-off events. [2021-03-25 12:16:58,098 INFO L130 PetriNetUnfolder]: For 47438/47461 co-relation queries the response was YES. [2021-03-25 12:16:58,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10209 conditions, 695 events. 257/695 cut-off events. For 47438/47461 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4811 event pairs, 37 based on Foata normal form. 10/703 useless extension candidates. Maximal degree in co-relation 10016. Up to 552 conditions per place. [2021-03-25 12:16:58,109 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 329 selfloop transitions, 60 changer transitions 3/400 dead transitions. [2021-03-25 12:16:58,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 400 transitions, 11159 flow [2021-03-25 12:16:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:58,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 361 transitions. [2021-03-25 12:16:58,110 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2865079365079365 [2021-03-25 12:16:58,110 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 361 transitions. [2021-03-25 12:16:58,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 361 transitions. [2021-03-25 12:16:58,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:58,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 361 transitions. [2021-03-25 12:16:58,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.083333333333332) internal successors, (361), 12 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:58,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:58,111 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:58,111 INFO L185 Difference]: Start difference. First operand has 432 places, 398 transitions, 10342 flow. Second operand 12 states and 361 transitions. [2021-03-25 12:16:58,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 400 transitions, 11159 flow [2021-03-25 12:16:58,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 400 transitions, 10851 flow, removed 52 selfloop flow, removed 8 redundant places. [2021-03-25 12:16:58,365 INFO L241 Difference]: Finished difference. Result has 437 places, 396 transitions, 10119 flow [2021-03-25 12:16:58,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10034, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10119, PETRI_PLACES=437, PETRI_TRANSITIONS=396} [2021-03-25 12:16:58,365 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 390 predicate places. [2021-03-25 12:16:58,365 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:58,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 396 transitions, 10119 flow [2021-03-25 12:16:58,365 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 396 transitions, 10119 flow [2021-03-25 12:16:58,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 396 transitions, 10119 flow [2021-03-25 12:16:58,458 INFO L129 PetriNetUnfolder]: 219/636 cut-off events. [2021-03-25 12:16:58,458 INFO L130 PetriNetUnfolder]: For 41009/41114 co-relation queries the response was YES. [2021-03-25 12:16:58,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8746 conditions, 636 events. 219/636 cut-off events. For 41009/41114 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4637 event pairs, 26 based on Foata normal form. 21/652 useless extension candidates. Maximal degree in co-relation 8578. Up to 219 conditions per place. [2021-03-25 12:16:58,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 486 [2021-03-25 12:16:58,487 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:58,487 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:58,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 12:16:58,487 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 396 transitions, 10119 flow [2021-03-25 12:16:58,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:58,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:58,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:58,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-03-25 12:16:58,487 INFO L428 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:58,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:58,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1604730533, now seen corresponding path program 174 times [2021-03-25 12:16:58,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:58,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573616604] [2021-03-25 12:16:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:58,493 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:58,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:58,498 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:58,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:58,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:58,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:58,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:58,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:58,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:58,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:58,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:58,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:58,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:58,546 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:16:58,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:16:58,559 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:58,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:58,572 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:58,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:58,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573616604] [2021-03-25 12:16:58,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:58,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:58,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865626868] [2021-03-25 12:16:58,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:58,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:58,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:58,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:58,575 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:58,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 396 transitions, 10119 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:58,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:58,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:58,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:58,991 INFO L129 PetriNetUnfolder]: 256/693 cut-off events. [2021-03-25 12:16:58,992 INFO L130 PetriNetUnfolder]: For 45982/45997 co-relation queries the response was YES. [2021-03-25 12:16:58,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10030 conditions, 693 events. 256/693 cut-off events. For 45982/45997 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4787 event pairs, 37 based on Foata normal form. 10/702 useless extension candidates. Maximal degree in co-relation 9860. Up to 533 conditions per place. [2021-03-25 12:16:59,002 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 312 selfloop transitions, 75 changer transitions 6/401 dead transitions. [2021-03-25 12:16:59,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 401 transitions, 10964 flow [2021-03-25 12:16:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:16:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:16:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:16:59,003 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29365079365079366 [2021-03-25 12:16:59,003 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:16:59,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:16:59,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:59,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:16:59,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,004 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,004 INFO L185 Difference]: Start difference. First operand has 434 places, 396 transitions, 10119 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:16:59,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 401 transitions, 10964 flow [2021-03-25 12:16:59,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 401 transitions, 10845 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 12:16:59,266 INFO L241 Difference]: Finished difference. Result has 436 places, 392 transitions, 10059 flow [2021-03-25 12:16:59,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=10000, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10059, PETRI_PLACES=436, PETRI_TRANSITIONS=392} [2021-03-25 12:16:59,267 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 389 predicate places. [2021-03-25 12:16:59,267 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:16:59,267 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 436 places, 392 transitions, 10059 flow [2021-03-25 12:16:59,267 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 436 places, 392 transitions, 10059 flow [2021-03-25 12:16:59,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 392 transitions, 10059 flow [2021-03-25 12:16:59,358 INFO L129 PetriNetUnfolder]: 215/625 cut-off events. [2021-03-25 12:16:59,359 INFO L130 PetriNetUnfolder]: For 40440/40500 co-relation queries the response was YES. [2021-03-25 12:16:59,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8686 conditions, 625 events. 215/625 cut-off events. For 40440/40500 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4537 event pairs, 25 based on Foata normal form. 16/639 useless extension candidates. Maximal degree in co-relation 8519. Up to 214 conditions per place. [2021-03-25 12:16:59,369 INFO L142 LiptonReduction]: Number of co-enabled transitions 482 [2021-03-25 12:16:59,387 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:16:59,388 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:16:59,388 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-03-25 12:16:59,388 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 392 transitions, 10059 flow [2021-03-25 12:16:59,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:16:59,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:16:59,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-03-25 12:16:59,388 INFO L428 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:16:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:16:59,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1623164559, now seen corresponding path program 175 times [2021-03-25 12:16:59,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:16:59,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132597953] [2021-03-25 12:16:59,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:16:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:16:59,394 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:16:59,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:16:59,398 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:16:59,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:16:59,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:59,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:59,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:59,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:59,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:59,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:16:59,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:59,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:59,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:59,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:16:59,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:16:59,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:59,459 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:16:59,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:16:59,473 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:16:59,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:16:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:16:59,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132597953] [2021-03-25 12:16:59,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:16:59,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:16:59,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638778878] [2021-03-25 12:16:59,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:16:59,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:16:59,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:16:59,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:16:59,476 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:16:59,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 392 transitions, 10059 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:16:59,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:16:59,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:16:59,869 INFO L129 PetriNetUnfolder]: 254/688 cut-off events. [2021-03-25 12:16:59,870 INFO L130 PetriNetUnfolder]: For 45933/45956 co-relation queries the response was YES. [2021-03-25 12:16:59,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 688 events. 254/688 cut-off events. For 45933/45956 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4752 event pairs, 38 based on Foata normal form. 12/699 useless extension candidates. Maximal degree in co-relation 9833. Up to 533 conditions per place. [2021-03-25 12:16:59,880 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 316 selfloop transitions, 68 changer transitions 5/397 dead transitions. [2021-03-25 12:16:59,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 397 transitions, 10901 flow [2021-03-25 12:16:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:16:59,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:16:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 340 transitions. [2021-03-25 12:16:59,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2943722943722944 [2021-03-25 12:16:59,881 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 340 transitions. [2021-03-25 12:16:59,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 340 transitions. [2021-03-25 12:16:59,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:16:59,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 340 transitions. [2021-03-25 12:16:59,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,882 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:16:59,882 INFO L185 Difference]: Start difference. First operand has 434 places, 392 transitions, 10059 flow. Second operand 11 states and 340 transitions. [2021-03-25 12:16:59,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 397 transitions, 10901 flow [2021-03-25 12:17:00,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 397 transitions, 10621 flow, removed 12 selfloop flow, removed 13 redundant places. [2021-03-25 12:17:00,136 INFO L241 Difference]: Finished difference. Result has 434 places, 389 transitions, 9874 flow [2021-03-25 12:17:00,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9779, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9874, PETRI_PLACES=434, PETRI_TRANSITIONS=389} [2021-03-25 12:17:00,136 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 387 predicate places. [2021-03-25 12:17:00,136 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:00,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 389 transitions, 9874 flow [2021-03-25 12:17:00,136 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 389 transitions, 9874 flow [2021-03-25 12:17:00,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 389 transitions, 9874 flow [2021-03-25 12:17:00,230 INFO L129 PetriNetUnfolder]: 213/630 cut-off events. [2021-03-25 12:17:00,230 INFO L130 PetriNetUnfolder]: For 38520/38581 co-relation queries the response was YES. [2021-03-25 12:17:00,236 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8677 conditions, 630 events. 213/630 cut-off events. For 38520/38581 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4560 event pairs, 17 based on Foata normal form. 17/645 useless extension candidates. Maximal degree in co-relation 8510. Up to 215 conditions per place. [2021-03-25 12:17:00,242 INFO L142 LiptonReduction]: Number of co-enabled transitions 482 [2021-03-25 12:17:00,259 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:00,259 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:00,259 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-25 12:17:00,260 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 389 transitions, 9874 flow [2021-03-25 12:17:00,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:00,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:00,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:00,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-03-25 12:17:00,260 INFO L428 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:00,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:00,260 INFO L82 PathProgramCache]: Analyzing trace with hash -137469677, now seen corresponding path program 176 times [2021-03-25 12:17:00,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:00,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530218564] [2021-03-25 12:17:00,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:00,267 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:00,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:00,272 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:00,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:00,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:00,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:00,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:00,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:00,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:00,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:00,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:00,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:00,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:00,335 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:00,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:00,339 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:00,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:00,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530218564] [2021-03-25 12:17:00,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:00,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:00,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272710327] [2021-03-25 12:17:00,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:00,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:00,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:00,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:00,341 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:17:00,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 389 transitions, 9874 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:00,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:00,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:17:00,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:00,732 INFO L129 PetriNetUnfolder]: 253/682 cut-off events. [2021-03-25 12:17:00,732 INFO L130 PetriNetUnfolder]: For 45240/45269 co-relation queries the response was YES. [2021-03-25 12:17:00,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9938 conditions, 682 events. 253/682 cut-off events. For 45240/45269 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4703 event pairs, 42 based on Foata normal form. 14/693 useless extension candidates. Maximal degree in co-relation 9769. Up to 548 conditions per place. [2021-03-25 12:17:00,742 INFO L132 encePairwiseOnDemand]: 94/105 looper letters, 321 selfloop transitions, 62 changer transitions 5/396 dead transitions. [2021-03-25 12:17:00,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 396 transitions, 10879 flow [2021-03-25 12:17:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:17:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:17:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2021-03-25 12:17:00,743 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2873015873015873 [2021-03-25 12:17:00,743 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 362 transitions. [2021-03-25 12:17:00,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 362 transitions. [2021-03-25 12:17:00,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:00,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 362 transitions. [2021-03-25 12:17:00,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:00,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:00,744 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 105.0) internal successors, (1365), 13 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:00,744 INFO L185 Difference]: Start difference. First operand has 430 places, 389 transitions, 9874 flow. Second operand 12 states and 362 transitions. [2021-03-25 12:17:00,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 396 transitions, 10879 flow [2021-03-25 12:17:00,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 396 transitions, 10697 flow, removed 3 selfloop flow, removed 13 redundant places. [2021-03-25 12:17:01,003 INFO L241 Difference]: Finished difference. Result has 432 places, 390 transitions, 9918 flow [2021-03-25 12:17:01,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9698, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9918, PETRI_PLACES=432, PETRI_TRANSITIONS=390} [2021-03-25 12:17:01,003 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 385 predicate places. [2021-03-25 12:17:01,003 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:01,003 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 390 transitions, 9918 flow [2021-03-25 12:17:01,003 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 390 transitions, 9918 flow [2021-03-25 12:17:01,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 390 transitions, 9918 flow [2021-03-25 12:17:01,098 INFO L129 PetriNetUnfolder]: 210/614 cut-off events. [2021-03-25 12:17:01,098 INFO L130 PetriNetUnfolder]: For 42435/42538 co-relation queries the response was YES. [2021-03-25 12:17:01,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8605 conditions, 614 events. 210/614 cut-off events. For 42435/42538 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4409 event pairs, 14 based on Foata normal form. 22/633 useless extension candidates. Maximal degree in co-relation 8416. Up to 210 conditions per place. [2021-03-25 12:17:01,110 INFO L142 LiptonReduction]: Number of co-enabled transitions 482 [2021-03-25 12:17:01,128 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:01,128 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:01,128 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 12:17:01,128 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 390 transitions, 9918 flow [2021-03-25 12:17:01,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:01,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:01,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:01,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-03-25 12:17:01,129 INFO L428 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:01,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1183658387, now seen corresponding path program 177 times [2021-03-25 12:17:01,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:01,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77000308] [2021-03-25 12:17:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:01,135 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:01,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:01,139 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:01,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:01,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:01,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:01,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:01,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:01,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:01,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:01,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:01,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:01,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:01,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:01,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:01,204 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:01,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:01,218 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:01,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:01,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77000308] [2021-03-25 12:17:01,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:01,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:01,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621052090] [2021-03-25 12:17:01,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:01,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:01,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:01,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:01,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:17:01,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 390 transitions, 9918 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:01,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:01,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:17:01,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:01,619 INFO L129 PetriNetUnfolder]: 251/678 cut-off events. [2021-03-25 12:17:01,619 INFO L130 PetriNetUnfolder]: For 44165/44180 co-relation queries the response was YES. [2021-03-25 12:17:01,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9926 conditions, 678 events. 251/678 cut-off events. For 44165/44180 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4681 event pairs, 39 based on Foata normal form. 8/684 useless extension candidates. Maximal degree in co-relation 9733. Up to 511 conditions per place. [2021-03-25 12:17:01,629 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 288 selfloop transitions, 90 changer transitions 8/394 dead transitions. [2021-03-25 12:17:01,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 394 transitions, 10763 flow [2021-03-25 12:17:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:01,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 337 transitions. [2021-03-25 12:17:01,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2917748917748918 [2021-03-25 12:17:01,630 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 337 transitions. [2021-03-25 12:17:01,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 337 transitions. [2021-03-25 12:17:01,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:01,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 337 transitions. [2021-03-25 12:17:01,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 11 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:01,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:01,631 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:01,631 INFO L185 Difference]: Start difference. First operand has 432 places, 390 transitions, 9918 flow. Second operand 11 states and 337 transitions. [2021-03-25 12:17:01,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 394 transitions, 10763 flow [2021-03-25 12:17:01,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 394 transitions, 10566 flow, removed 38 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:01,914 INFO L241 Difference]: Finished difference. Result has 434 places, 384 transitions, 9802 flow [2021-03-25 12:17:01,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9721, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9802, PETRI_PLACES=434, PETRI_TRANSITIONS=384} [2021-03-25 12:17:01,914 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 387 predicate places. [2021-03-25 12:17:01,914 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:01,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 434 places, 384 transitions, 9802 flow [2021-03-25 12:17:01,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 434 places, 384 transitions, 9802 flow [2021-03-25 12:17:01,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 384 transitions, 9802 flow [2021-03-25 12:17:02,010 INFO L129 PetriNetUnfolder]: 215/623 cut-off events. [2021-03-25 12:17:02,010 INFO L130 PetriNetUnfolder]: For 41225/41274 co-relation queries the response was YES. [2021-03-25 12:17:02,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8746 conditions, 623 events. 215/623 cut-off events. For 41225/41274 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4438 event pairs, 18 based on Foata normal form. 16/635 useless extension candidates. Maximal degree in co-relation 8578. Up to 213 conditions per place. [2021-03-25 12:17:02,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 474 [2021-03-25 12:17:02,048 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:02,048 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:02,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 134 [2021-03-25 12:17:02,048 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 384 transitions, 9802 flow [2021-03-25 12:17:02,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:02,048 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:02,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:02,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-03-25 12:17:02,049 INFO L428 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:02,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:02,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1028566107, now seen corresponding path program 178 times [2021-03-25 12:17:02,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:02,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337980901] [2021-03-25 12:17:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:02,072 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:02,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:02,078 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:02,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:02,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:02,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:02,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:02,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:02,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:02,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:02,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:02,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:02,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:02,140 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:02,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:02,158 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:02,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:02,179 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:02,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:02,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337980901] [2021-03-25 12:17:02,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:02,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:02,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200781581] [2021-03-25 12:17:02,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:02,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:02,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:02,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:02,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:17:02,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 384 transitions, 9802 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:02,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:02,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:17:02,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:02,660 INFO L129 PetriNetUnfolder]: 249/673 cut-off events. [2021-03-25 12:17:02,661 INFO L130 PetriNetUnfolder]: For 43369/43392 co-relation queries the response was YES. [2021-03-25 12:17:02,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9839 conditions, 673 events. 249/673 cut-off events. For 43369/43392 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4609 event pairs, 37 based on Foata normal form. 10/681 useless extension candidates. Maximal degree in co-relation 9669. Up to 517 conditions per place. [2021-03-25 12:17:02,670 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 288 selfloop transitions, 80 changer transitions 11/387 dead transitions. [2021-03-25 12:17:02,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 387 transitions, 10623 flow [2021-03-25 12:17:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 338 transitions. [2021-03-25 12:17:02,671 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29264069264069265 [2021-03-25 12:17:02,671 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 338 transitions. [2021-03-25 12:17:02,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 338 transitions. [2021-03-25 12:17:02,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:02,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 338 transitions. [2021-03-25 12:17:02,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.727272727272727) internal successors, (338), 11 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:02,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:02,672 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:02,672 INFO L185 Difference]: Start difference. First operand has 430 places, 384 transitions, 9802 flow. Second operand 11 states and 338 transitions. [2021-03-25 12:17:02,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 387 transitions, 10623 flow [2021-03-25 12:17:02,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 387 transitions, 10433 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:02,921 INFO L241 Difference]: Finished difference. Result has 433 places, 375 transitions, 9578 flow [2021-03-25 12:17:02,921 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9614, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9578, PETRI_PLACES=433, PETRI_TRANSITIONS=375} [2021-03-25 12:17:02,921 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 386 predicate places. [2021-03-25 12:17:02,921 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:02,921 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 375 transitions, 9578 flow [2021-03-25 12:17:02,922 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 375 transitions, 9578 flow [2021-03-25 12:17:02,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 430 places, 375 transitions, 9578 flow [2021-03-25 12:17:03,011 INFO L129 PetriNetUnfolder]: 213/620 cut-off events. [2021-03-25 12:17:03,011 INFO L130 PetriNetUnfolder]: For 41571/41643 co-relation queries the response was YES. [2021-03-25 12:17:03,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8721 conditions, 620 events. 213/620 cut-off events. For 41571/41643 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4480 event pairs, 14 based on Foata normal form. 8/626 useless extension candidates. Maximal degree in co-relation 8553. Up to 218 conditions per place. [2021-03-25 12:17:03,022 INFO L142 LiptonReduction]: Number of co-enabled transitions 474 [2021-03-25 12:17:03,038 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:03,038 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:03,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 12:17:03,038 INFO L480 AbstractCegarLoop]: Abstraction has has 430 places, 375 transitions, 9578 flow [2021-03-25 12:17:03,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,038 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:03,038 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:03,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-03-25 12:17:03,038 INFO L428 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1085308981, now seen corresponding path program 179 times [2021-03-25 12:17:03,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:03,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677815752] [2021-03-25 12:17:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:03,044 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:03,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:03,049 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:03,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:03,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:03,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:03,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,111 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:03,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:03,125 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:03,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:03,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677815752] [2021-03-25 12:17:03,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:03,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:03,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437044201] [2021-03-25 12:17:03,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:03,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:03,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:03,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:03,128 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:17:03,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 375 transitions, 9578 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:03,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:17:03,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:03,523 INFO L129 PetriNetUnfolder]: 244/668 cut-off events. [2021-03-25 12:17:03,523 INFO L130 PetriNetUnfolder]: For 43781/43804 co-relation queries the response was YES. [2021-03-25 12:17:03,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9718 conditions, 668 events. 244/668 cut-off events. For 43781/43804 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4585 event pairs, 40 based on Foata normal form. 10/676 useless extension candidates. Maximal degree in co-relation 9545. Up to 525 conditions per place. [2021-03-25 12:17:03,532 INFO L132 encePairwiseOnDemand]: 92/105 looper letters, 314 selfloop transitions, 54 changer transitions 4/380 dead transitions. [2021-03-25 12:17:03,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 380 transitions, 10390 flow [2021-03-25 12:17:03,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 333 transitions. [2021-03-25 12:17:03,533 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2883116883116883 [2021-03-25 12:17:03,533 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 333 transitions. [2021-03-25 12:17:03,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 333 transitions. [2021-03-25 12:17:03,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:03,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 333 transitions. [2021-03-25 12:17:03,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.272727272727273) internal successors, (333), 11 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,534 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,534 INFO L185 Difference]: Start difference. First operand has 430 places, 375 transitions, 9578 flow. Second operand 11 states and 333 transitions. [2021-03-25 12:17:03,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 380 transitions, 10390 flow [2021-03-25 12:17:03,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 380 transitions, 10045 flow, removed 17 selfloop flow, removed 17 redundant places. [2021-03-25 12:17:03,786 INFO L241 Difference]: Finished difference. Result has 426 places, 374 transitions, 9323 flow [2021-03-25 12:17:03,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9235, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9323, PETRI_PLACES=426, PETRI_TRANSITIONS=374} [2021-03-25 12:17:03,786 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 379 predicate places. [2021-03-25 12:17:03,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:03,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 374 transitions, 9323 flow [2021-03-25 12:17:03,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 374 transitions, 9323 flow [2021-03-25 12:17:03,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 425 places, 374 transitions, 9323 flow [2021-03-25 12:17:03,872 INFO L129 PetriNetUnfolder]: 201/601 cut-off events. [2021-03-25 12:17:03,873 INFO L130 PetriNetUnfolder]: For 38933/39055 co-relation queries the response was YES. [2021-03-25 12:17:03,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8248 conditions, 601 events. 201/601 cut-off events. For 38933/39055 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4313 event pairs, 14 based on Foata normal form. 20/619 useless extension candidates. Maximal degree in co-relation 8079. Up to 205 conditions per place. [2021-03-25 12:17:03,882 INFO L142 LiptonReduction]: Number of co-enabled transitions 480 [2021-03-25 12:17:03,898 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:03,898 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:03,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 12:17:03,899 INFO L480 AbstractCegarLoop]: Abstraction has has 425 places, 374 transitions, 9323 flow [2021-03-25 12:17:03,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,899 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:03,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:03,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-03-25 12:17:03,899 INFO L428 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:03,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:03,899 INFO L82 PathProgramCache]: Analyzing trace with hash 666334901, now seen corresponding path program 180 times [2021-03-25 12:17:03,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:03,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476741679] [2021-03-25 12:17:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:03,905 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:03,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:03,909 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:03,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:03,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:03,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:03,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:03,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:03,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:03,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:03,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:03,985 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:03,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:03,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476741679] [2021-03-25 12:17:03,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:03,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:03,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560566076] [2021-03-25 12:17:03,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:03,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:03,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:03,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:03,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 105 [2021-03-25 12:17:03,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 374 transitions, 9323 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:03,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:03,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 105 [2021-03-25 12:17:03,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:04,412 INFO L129 PetriNetUnfolder]: 243/655 cut-off events. [2021-03-25 12:17:04,413 INFO L130 PetriNetUnfolder]: For 42921/42944 co-relation queries the response was YES. [2021-03-25 12:17:04,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9507 conditions, 655 events. 243/655 cut-off events. For 42921/42944 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4464 event pairs, 37 based on Foata normal form. 12/666 useless extension candidates. Maximal degree in co-relation 9338. Up to 477 conditions per place. [2021-03-25 12:17:04,422 INFO L132 encePairwiseOnDemand]: 91/105 looper letters, 245 selfloop transitions, 115 changer transitions 9/377 dead transitions. [2021-03-25 12:17:04,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 377 transitions, 10073 flow [2021-03-25 12:17:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:17:04,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30043290043290044 [2021-03-25 12:17:04,424 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:17:04,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:17:04,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:04,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:17:04,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:04,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:04,425 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 105.0) internal successors, (1260), 12 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:04,425 INFO L185 Difference]: Start difference. First operand has 425 places, 374 transitions, 9323 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:17:04,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 377 transitions, 10073 flow [2021-03-25 12:17:04,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 377 transitions, 9947 flow, removed 8 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:04,676 INFO L241 Difference]: Finished difference. Result has 426 places, 365 transitions, 9304 flow [2021-03-25 12:17:04,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=9197, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9304, PETRI_PLACES=426, PETRI_TRANSITIONS=365} [2021-03-25 12:17:04,676 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 379 predicate places. [2021-03-25 12:17:04,676 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:04,676 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 365 transitions, 9304 flow [2021-03-25 12:17:04,676 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 365 transitions, 9304 flow [2021-03-25 12:17:04,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 417 places, 365 transitions, 9304 flow [2021-03-25 12:17:04,765 INFO L129 PetriNetUnfolder]: 197/580 cut-off events. [2021-03-25 12:17:04,765 INFO L130 PetriNetUnfolder]: For 38701/38793 co-relation queries the response was YES. [2021-03-25 12:17:04,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8109 conditions, 580 events. 197/580 cut-off events. For 38701/38793 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4067 event pairs, 14 based on Foata normal form. 26/604 useless extension candidates. Maximal degree in co-relation 7942. Up to 199 conditions per place. [2021-03-25 12:17:04,777 INFO L142 LiptonReduction]: Number of co-enabled transitions 474 [2021-03-25 12:17:04,843 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:04,843 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:04,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-03-25 12:17:04,844 INFO L480 AbstractCegarLoop]: Abstraction has has 417 places, 365 transitions, 9315 flow [2021-03-25 12:17:04,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:04,844 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:04,844 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:04,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-03-25 12:17:04,844 INFO L428 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:04,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:04,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1030239029, now seen corresponding path program 181 times [2021-03-25 12:17:04,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:04,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032582869] [2021-03-25 12:17:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:04,850 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:04,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:04,855 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:04,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:04,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:04,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:04,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:04,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:04,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:04,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:04,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:04,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:04,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:04,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:04,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:04,934 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:04,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:04,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:04,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032582869] [2021-03-25 12:17:04,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:04,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:04,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328126747] [2021-03-25 12:17:04,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:04,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:04,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:04,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:04,937 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:04,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 365 transitions, 9315 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:04,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:04,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:04,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:05,356 INFO L129 PetriNetUnfolder]: 241/650 cut-off events. [2021-03-25 12:17:05,356 INFO L130 PetriNetUnfolder]: For 42973/42988 co-relation queries the response was YES. [2021-03-25 12:17:05,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9543 conditions, 650 events. 241/650 cut-off events. For 42973/42988 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4430 event pairs, 39 based on Foata normal form. 10/659 useless extension candidates. Maximal degree in co-relation 9374. Up to 524 conditions per place. [2021-03-25 12:17:05,365 INFO L132 encePairwiseOnDemand]: 93/106 looper letters, 317 selfloop transitions, 43 changer transitions 3/371 dead transitions. [2021-03-25 12:17:05,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 371 transitions, 10185 flow [2021-03-25 12:17:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:17:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:17:05,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 389 transitions. [2021-03-25 12:17:05,366 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2822931785195936 [2021-03-25 12:17:05,366 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 389 transitions. [2021-03-25 12:17:05,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 389 transitions. [2021-03-25 12:17:05,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:05,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 389 transitions. [2021-03-25 12:17:05,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.923076923076923) internal successors, (389), 13 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:05,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:05,367 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:05,367 INFO L185 Difference]: Start difference. First operand has 417 places, 365 transitions, 9315 flow. Second operand 13 states and 389 transitions. [2021-03-25 12:17:05,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 371 transitions, 10185 flow [2021-03-25 12:17:05,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 371 transitions, 9738 flow, removed 36 selfloop flow, removed 16 redundant places. [2021-03-25 12:17:05,612 INFO L241 Difference]: Finished difference. Result has 416 places, 365 transitions, 9016 flow [2021-03-25 12:17:05,612 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8872, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9016, PETRI_PLACES=416, PETRI_TRANSITIONS=365} [2021-03-25 12:17:05,612 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 369 predicate places. [2021-03-25 12:17:05,612 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:05,612 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 416 places, 365 transitions, 9016 flow [2021-03-25 12:17:05,612 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 416 places, 365 transitions, 9016 flow [2021-03-25 12:17:05,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 415 places, 365 transitions, 9016 flow [2021-03-25 12:17:05,702 INFO L129 PetriNetUnfolder]: 204/594 cut-off events. [2021-03-25 12:17:05,702 INFO L130 PetriNetUnfolder]: For 37808/37920 co-relation queries the response was YES. [2021-03-25 12:17:05,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8091 conditions, 594 events. 204/594 cut-off events. For 37808/37920 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4240 event pairs, 21 based on Foata normal form. 19/606 useless extension candidates. Maximal degree in co-relation 7907. Up to 210 conditions per place. [2021-03-25 12:17:05,712 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 12:17:05,728 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:05,728 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:05,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 12:17:05,728 INFO L480 AbstractCegarLoop]: Abstraction has has 415 places, 365 transitions, 9016 flow [2021-03-25 12:17:05,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:05,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:05,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:05,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-25 12:17:05,728 INFO L428 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:05,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:05,729 INFO L82 PathProgramCache]: Analyzing trace with hash 343090426, now seen corresponding path program 1 times [2021-03-25 12:17:05,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:05,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482518556] [2021-03-25 12:17:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:05,735 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:05,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:05,739 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:05,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:05,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:05,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:05,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:05,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:05,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:05,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:05,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:05,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:17:05,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:05,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:17:05,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:17:05,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:05,800 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:05,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:05,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482518556] [2021-03-25 12:17:05,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:05,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:05,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493589101] [2021-03-25 12:17:05,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:05,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:05,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:05,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:05,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:05,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 365 transitions, 9016 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:05,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:05,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:05,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:06,162 INFO L129 PetriNetUnfolder]: 240/651 cut-off events. [2021-03-25 12:17:06,162 INFO L130 PetriNetUnfolder]: For 40662/40685 co-relation queries the response was YES. [2021-03-25 12:17:06,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9337 conditions, 651 events. 240/651 cut-off events. For 40662/40685 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4438 event pairs, 31 based on Foata normal form. 10/659 useless extension candidates. Maximal degree in co-relation 9149. Up to 506 conditions per place. [2021-03-25 12:17:06,171 INFO L132 encePairwiseOnDemand]: 93/106 looper letters, 285 selfloop transitions, 73 changer transitions 3/369 dead transitions. [2021-03-25 12:17:06,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 369 transitions, 9806 flow [2021-03-25 12:17:06,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:17:06,172 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2943396226415094 [2021-03-25 12:17:06,172 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:17:06,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:17:06,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:06,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:17:06,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,173 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,173 INFO L185 Difference]: Start difference. First operand has 415 places, 365 transitions, 9016 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:17:06,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 369 transitions, 9806 flow [2021-03-25 12:17:06,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 369 transitions, 9517 flow, removed 65 selfloop flow, removed 15 redundant places. [2021-03-25 12:17:06,441 INFO L241 Difference]: Finished difference. Result has 411 places, 363 transitions, 8975 flow [2021-03-25 12:17:06,441 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8776, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8975, PETRI_PLACES=411, PETRI_TRANSITIONS=363} [2021-03-25 12:17:06,441 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 364 predicate places. [2021-03-25 12:17:06,441 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:06,441 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 363 transitions, 8975 flow [2021-03-25 12:17:06,441 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 363 transitions, 8975 flow [2021-03-25 12:17:06,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 410 places, 363 transitions, 8975 flow [2021-03-25 12:17:06,521 INFO L129 PetriNetUnfolder]: 199/587 cut-off events. [2021-03-25 12:17:06,522 INFO L130 PetriNetUnfolder]: For 37438/37515 co-relation queries the response was YES. [2021-03-25 12:17:06,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7948 conditions, 587 events. 199/587 cut-off events. For 37438/37515 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4219 event pairs, 31 based on Foata normal form. 19/600 useless extension candidates. Maximal degree in co-relation 7767. Up to 203 conditions per place. [2021-03-25 12:17:06,532 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-25 12:17:06,547 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:06,547 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:06,547 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-25 12:17:06,548 INFO L480 AbstractCegarLoop]: Abstraction has has 410 places, 363 transitions, 8975 flow [2021-03-25 12:17:06,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,548 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:06,548 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:06,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-03-25 12:17:06,548 INFO L428 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:06,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1275462520, now seen corresponding path program 2 times [2021-03-25 12:17:06,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:06,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152630882] [2021-03-25 12:17:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:06,554 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:06,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:06,558 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:06,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:06,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:06,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:06,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:06,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:06,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:06,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:06,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:17:06,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:06,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:06,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:06,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:06,618 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:06,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:06,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152630882] [2021-03-25 12:17:06,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:06,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:06,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784018099] [2021-03-25 12:17:06,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:06,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:06,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:06,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:06,621 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:06,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 363 transitions, 8975 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:06,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:06,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:06,948 INFO L129 PetriNetUnfolder]: 239/646 cut-off events. [2021-03-25 12:17:06,948 INFO L130 PetriNetUnfolder]: For 39715/39738 co-relation queries the response was YES. [2021-03-25 12:17:06,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9252 conditions, 646 events. 239/646 cut-off events. For 39715/39738 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4367 event pairs, 42 based on Foata normal form. 8/651 useless extension candidates. Maximal degree in co-relation 9067. Up to 531 conditions per place. [2021-03-25 12:17:06,957 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 322 selfloop transitions, 31 changer transitions 3/364 dead transitions. [2021-03-25 12:17:06,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 364 transitions, 9692 flow [2021-03-25 12:17:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:17:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:17:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 354 transitions. [2021-03-25 12:17:06,958 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2783018867924528 [2021-03-25 12:17:06,958 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 354 transitions. [2021-03-25 12:17:06,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 354 transitions. [2021-03-25 12:17:06,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:06,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 354 transitions. [2021-03-25 12:17:06,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,959 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:06,959 INFO L185 Difference]: Start difference. First operand has 410 places, 363 transitions, 8975 flow. Second operand 12 states and 354 transitions. [2021-03-25 12:17:06,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 364 transitions, 9692 flow [2021-03-25 12:17:07,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 364 transitions, 9461 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:17:07,173 INFO L241 Difference]: Finished difference. Result has 410 places, 360 transitions, 8749 flow [2021-03-25 12:17:07,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8744, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8749, PETRI_PLACES=410, PETRI_TRANSITIONS=360} [2021-03-25 12:17:07,174 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 363 predicate places. [2021-03-25 12:17:07,174 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:07,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 410 places, 360 transitions, 8749 flow [2021-03-25 12:17:07,174 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 410 places, 360 transitions, 8749 flow [2021-03-25 12:17:07,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 408 places, 360 transitions, 8749 flow [2021-03-25 12:17:07,255 INFO L129 PetriNetUnfolder]: 198/584 cut-off events. [2021-03-25 12:17:07,255 INFO L130 PetriNetUnfolder]: For 36302/36379 co-relation queries the response was YES. [2021-03-25 12:17:07,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7783 conditions, 584 events. 198/584 cut-off events. For 36302/36379 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4204 event pairs, 36 based on Foata normal form. 19/596 useless extension candidates. Maximal degree in co-relation 7625. Up to 202 conditions per place. [2021-03-25 12:17:07,265 INFO L142 LiptonReduction]: Number of co-enabled transitions 472 [2021-03-25 12:17:07,280 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:07,280 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:07,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-25 12:17:07,280 INFO L480 AbstractCegarLoop]: Abstraction has has 408 places, 360 transitions, 8749 flow [2021-03-25 12:17:07,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:07,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:07,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:07,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-03-25 12:17:07,281 INFO L428 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:07,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1094594756, now seen corresponding path program 3 times [2021-03-25 12:17:07,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:07,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108274963] [2021-03-25 12:17:07,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:07,286 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:07,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:07,290 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:07,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:07,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:07,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:07,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:07,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:07,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:17:07,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:07,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:07,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:07,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:07,350 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:07,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:07,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108274963] [2021-03-25 12:17:07,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:07,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:07,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008374376] [2021-03-25 12:17:07,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:07,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:07,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:07,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:07,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:07,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 360 transitions, 8749 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:07,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:07,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:07,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:07,644 INFO L129 PetriNetUnfolder]: 238/642 cut-off events. [2021-03-25 12:17:07,645 INFO L130 PetriNetUnfolder]: For 39996/40019 co-relation queries the response was YES. [2021-03-25 12:17:07,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9097 conditions, 642 events. 238/642 cut-off events. For 39996/40019 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4338 event pairs, 42 based on Foata normal form. 8/647 useless extension candidates. Maximal degree in co-relation 8937. Up to 532 conditions per place. [2021-03-25 12:17:07,653 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 324 selfloop transitions, 26 changer transitions 4/362 dead transitions. [2021-03-25 12:17:07,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 362 transitions, 9501 flow [2021-03-25 12:17:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:07,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 298 transitions. [2021-03-25 12:17:07,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2811320754716981 [2021-03-25 12:17:07,654 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 298 transitions. [2021-03-25 12:17:07,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 298 transitions. [2021-03-25 12:17:07,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:07,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 298 transitions. [2021-03-25 12:17:07,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.8) internal successors, (298), 10 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:07,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:07,655 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:07,655 INFO L185 Difference]: Start difference. First operand has 408 places, 360 transitions, 8749 flow. Second operand 10 states and 298 transitions. [2021-03-25 12:17:07,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 362 transitions, 9501 flow [2021-03-25 12:17:07,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 362 transitions, 9412 flow, removed 1 selfloop flow, removed 13 redundant places. [2021-03-25 12:17:07,894 INFO L241 Difference]: Finished difference. Result has 406 places, 357 transitions, 8670 flow [2021-03-25 12:17:07,894 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8660, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8670, PETRI_PLACES=406, PETRI_TRANSITIONS=357} [2021-03-25 12:17:07,894 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 359 predicate places. [2021-03-25 12:17:07,894 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:07,894 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 357 transitions, 8670 flow [2021-03-25 12:17:07,895 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 357 transitions, 8670 flow [2021-03-25 12:17:07,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 357 transitions, 8670 flow [2021-03-25 12:17:07,980 INFO L129 PetriNetUnfolder]: 210/611 cut-off events. [2021-03-25 12:17:07,980 INFO L130 PetriNetUnfolder]: For 37059/37092 co-relation queries the response was YES. [2021-03-25 12:17:07,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8268 conditions, 611 events. 210/611 cut-off events. For 37059/37092 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4289 event pairs, 31 based on Foata normal form. 4/608 useless extension candidates. Maximal degree in co-relation 8109. Up to 218 conditions per place. [2021-03-25 12:17:07,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 468 [2021-03-25 12:17:08,006 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:08,006 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:08,006 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 12:17:08,006 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 357 transitions, 8670 flow [2021-03-25 12:17:08,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:08,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:08,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:08,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-03-25 12:17:08,006 INFO L428 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:08,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:08,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1753852547, now seen corresponding path program 182 times [2021-03-25 12:17:08,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:08,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893673717] [2021-03-25 12:17:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:08,026 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:08,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:08,031 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:08,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:08,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:08,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:08,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:08,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,101 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:08,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:08,115 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:08,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:08,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893673717] [2021-03-25 12:17:08,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:08,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:08,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066707065] [2021-03-25 12:17:08,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:08,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:08,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:08,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:08,118 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:08,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 357 transitions, 8670 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:08,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:08,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:08,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:08,554 INFO L129 PetriNetUnfolder]: 237/635 cut-off events. [2021-03-25 12:17:08,555 INFO L130 PetriNetUnfolder]: For 40426/40449 co-relation queries the response was YES. [2021-03-25 12:17:08,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9050 conditions, 635 events. 237/635 cut-off events. For 40426/40449 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4258 event pairs, 34 based on Foata normal form. 14/649 useless extension candidates. Maximal degree in co-relation 8889. Up to 495 conditions per place. [2021-03-25 12:17:08,563 INFO L132 encePairwiseOnDemand]: 92/106 looper letters, 288 selfloop transitions, 59 changer transitions 7/362 dead transitions. [2021-03-25 12:17:08,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 362 transitions, 9435 flow [2021-03-25 12:17:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:08,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 343 transitions. [2021-03-25 12:17:08,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29416809605488853 [2021-03-25 12:17:08,564 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 343 transitions. [2021-03-25 12:17:08,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 343 transitions. [2021-03-25 12:17:08,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:08,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 343 transitions. [2021-03-25 12:17:08,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:08,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:08,565 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:08,565 INFO L185 Difference]: Start difference. First operand has 401 places, 357 transitions, 8670 flow. Second operand 11 states and 343 transitions. [2021-03-25 12:17:08,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 362 transitions, 9435 flow [2021-03-25 12:17:08,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 362 transitions, 9375 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-25 12:17:08,806 INFO L241 Difference]: Finished difference. Result has 406 places, 351 transitions, 8595 flow [2021-03-25 12:17:08,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8612, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8595, PETRI_PLACES=406, PETRI_TRANSITIONS=351} [2021-03-25 12:17:08,806 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 359 predicate places. [2021-03-25 12:17:08,806 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:08,806 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 351 transitions, 8595 flow [2021-03-25 12:17:08,806 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 351 transitions, 8595 flow [2021-03-25 12:17:08,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 402 places, 351 transitions, 8595 flow [2021-03-25 12:17:08,886 INFO L129 PetriNetUnfolder]: 195/569 cut-off events. [2021-03-25 12:17:08,886 INFO L130 PetriNetUnfolder]: For 35119/35205 co-relation queries the response was YES. [2021-03-25 12:17:08,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7686 conditions, 569 events. 195/569 cut-off events. For 35119/35205 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3981 event pairs, 16 based on Foata normal form. 22/585 useless extension candidates. Maximal degree in co-relation 7527. Up to 200 conditions per place. [2021-03-25 12:17:08,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-25 12:17:08,910 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:08,910 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:08,911 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-03-25 12:17:08,911 INFO L480 AbstractCegarLoop]: Abstraction has has 402 places, 351 transitions, 8595 flow [2021-03-25 12:17:08,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:08,911 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:08,911 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:08,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-03-25 12:17:08,911 INFO L428 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:08,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:08,912 INFO L82 PathProgramCache]: Analyzing trace with hash 285918275, now seen corresponding path program 183 times [2021-03-25 12:17:08,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:08,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662398821] [2021-03-25 12:17:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:08,919 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:08,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:08,924 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:08,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:08,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:08,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:08,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:08,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:08,989 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:08,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:09,003 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:09,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:09,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:09,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662398821] [2021-03-25 12:17:09,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:09,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:09,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368390184] [2021-03-25 12:17:09,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:09,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:09,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:09,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:09,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:09,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 351 transitions, 8595 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:09,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:09,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:09,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:09,402 INFO L129 PetriNetUnfolder]: 235/637 cut-off events. [2021-03-25 12:17:09,403 INFO L130 PetriNetUnfolder]: For 40791/40814 co-relation queries the response was YES. [2021-03-25 12:17:09,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9033 conditions, 637 events. 235/637 cut-off events. For 40791/40814 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4284 event pairs, 32 based on Foata normal form. 10/645 useless extension candidates. Maximal degree in co-relation 8872. Up to 513 conditions per place. [2021-03-25 12:17:09,412 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 311 selfloop transitions, 31 changer transitions 7/357 dead transitions. [2021-03-25 12:17:09,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 357 transitions, 9418 flow [2021-03-25 12:17:09,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:17:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:17:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 384 transitions. [2021-03-25 12:17:09,413 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27866473149492016 [2021-03-25 12:17:09,413 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 384 transitions. [2021-03-25 12:17:09,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 384 transitions. [2021-03-25 12:17:09,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:09,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 384 transitions. [2021-03-25 12:17:09,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.53846153846154) internal successors, (384), 13 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:09,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:09,414 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:09,414 INFO L185 Difference]: Start difference. First operand has 402 places, 351 transitions, 8595 flow. Second operand 13 states and 384 transitions. [2021-03-25 12:17:09,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 357 transitions, 9418 flow [2021-03-25 12:17:09,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 357 transitions, 9271 flow, removed 3 selfloop flow, removed 12 redundant places. [2021-03-25 12:17:09,636 INFO L241 Difference]: Finished difference. Result has 405 places, 347 transitions, 8408 flow [2021-03-25 12:17:09,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8448, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8408, PETRI_PLACES=405, PETRI_TRANSITIONS=347} [2021-03-25 12:17:09,637 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 358 predicate places. [2021-03-25 12:17:09,637 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:09,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 405 places, 347 transitions, 8408 flow [2021-03-25 12:17:09,637 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 405 places, 347 transitions, 8408 flow [2021-03-25 12:17:09,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 400 places, 347 transitions, 8408 flow [2021-03-25 12:17:09,716 INFO L129 PetriNetUnfolder]: 194/566 cut-off events. [2021-03-25 12:17:09,716 INFO L130 PetriNetUnfolder]: For 36327/36410 co-relation queries the response was YES. [2021-03-25 12:17:09,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7697 conditions, 566 events. 194/566 cut-off events. For 36327/36410 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3950 event pairs, 29 based on Foata normal form. 20/581 useless extension candidates. Maximal degree in co-relation 7538. Up to 199 conditions per place. [2021-03-25 12:17:09,726 INFO L142 LiptonReduction]: Number of co-enabled transitions 450 [2021-03-25 12:17:09,740 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:09,740 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:09,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-03-25 12:17:09,740 INFO L480 AbstractCegarLoop]: Abstraction has has 400 places, 347 transitions, 8408 flow [2021-03-25 12:17:09,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:09,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:09,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:09,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-03-25 12:17:09,740 INFO L428 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:09,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:09,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1499044547, now seen corresponding path program 184 times [2021-03-25 12:17:09,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:09,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172851896] [2021-03-25 12:17:09,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:09,767 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:09,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:09,773 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:09,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:09,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:09,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:09,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:09,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:09,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:09,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:09,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:09,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:09,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:09,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:09,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:09,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:09,836 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:09,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:09,849 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:09,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:09,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172851896] [2021-03-25 12:17:09,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:09,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:09,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104208117] [2021-03-25 12:17:09,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:09,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:09,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:09,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:09,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:09,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 347 transitions, 8408 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:09,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:09,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:09,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:10,205 INFO L129 PetriNetUnfolder]: 233/625 cut-off events. [2021-03-25 12:17:10,205 INFO L130 PetriNetUnfolder]: For 38989/39012 co-relation queries the response was YES. [2021-03-25 12:17:10,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8900 conditions, 625 events. 233/625 cut-off events. For 38989/39012 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4115 event pairs, 39 based on Foata normal form. 10/633 useless extension candidates. Maximal degree in co-relation 8739. Up to 510 conditions per place. [2021-03-25 12:17:10,214 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 309 selfloop transitions, 32 changer transitions 4/353 dead transitions. [2021-03-25 12:17:10,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 353 transitions, 9165 flow [2021-03-25 12:17:10,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 12:17:10,215 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28773584905660377 [2021-03-25 12:17:10,215 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 12:17:10,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 12:17:10,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:10,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 12:17:10,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:10,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:10,216 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:10,216 INFO L185 Difference]: Start difference. First operand has 400 places, 347 transitions, 8408 flow. Second operand 10 states and 305 transitions. [2021-03-25 12:17:10,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 353 transitions, 9165 flow [2021-03-25 12:17:10,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 353 transitions, 9082 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-03-25 12:17:10,432 INFO L241 Difference]: Finished difference. Result has 401 places, 346 transitions, 8369 flow [2021-03-25 12:17:10,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8325, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8369, PETRI_PLACES=401, PETRI_TRANSITIONS=346} [2021-03-25 12:17:10,433 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 354 predicate places. [2021-03-25 12:17:10,433 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:10,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 346 transitions, 8369 flow [2021-03-25 12:17:10,433 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 346 transitions, 8369 flow [2021-03-25 12:17:10,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 398 places, 346 transitions, 8369 flow [2021-03-25 12:17:10,513 INFO L129 PetriNetUnfolder]: 194/566 cut-off events. [2021-03-25 12:17:10,513 INFO L130 PetriNetUnfolder]: For 36137/36306 co-relation queries the response was YES. [2021-03-25 12:17:10,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7648 conditions, 566 events. 194/566 cut-off events. For 36137/36306 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3964 event pairs, 30 based on Foata normal form. 16/574 useless extension candidates. Maximal degree in co-relation 7489. Up to 199 conditions per place. [2021-03-25 12:17:10,524 INFO L142 LiptonReduction]: Number of co-enabled transitions 448 [2021-03-25 12:17:10,539 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:10,539 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:10,539 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-25 12:17:10,539 INFO L480 AbstractCegarLoop]: Abstraction has has 398 places, 346 transitions, 8369 flow [2021-03-25 12:17:10,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:10,539 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:10,539 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:10,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-03-25 12:17:10,539 INFO L428 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:10,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:10,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1280742269, now seen corresponding path program 185 times [2021-03-25 12:17:10,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:10,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700836689] [2021-03-25 12:17:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:10,548 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:10,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:10,553 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:10,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:10,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:10,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:10,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:10,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:10,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:10,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:10,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:10,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:10,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:10,621 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:10,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:10,640 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:10,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:10,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700836689] [2021-03-25 12:17:10,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:10,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:10,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906915994] [2021-03-25 12:17:10,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:10,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:10,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:10,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:10,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:10,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 346 transitions, 8369 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:10,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:10,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:10,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:10,998 INFO L129 PetriNetUnfolder]: 232/624 cut-off events. [2021-03-25 12:17:10,998 INFO L130 PetriNetUnfolder]: For 39503/39526 co-relation queries the response was YES. [2021-03-25 12:17:11,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8862 conditions, 624 events. 232/624 cut-off events. For 39503/39526 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4148 event pairs, 35 based on Foata normal form. 10/632 useless extension candidates. Maximal degree in co-relation 8701. Up to 506 conditions per place. [2021-03-25 12:17:11,006 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 307 selfloop transitions, 31 changer transitions 6/352 dead transitions. [2021-03-25 12:17:11,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 352 transitions, 9129 flow [2021-03-25 12:17:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:11,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:11,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 12:17:11,007 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28867924528301886 [2021-03-25 12:17:11,007 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 12:17:11,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 12:17:11,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:11,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 12:17:11,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,008 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,008 INFO L185 Difference]: Start difference. First operand has 398 places, 346 transitions, 8369 flow. Second operand 10 states and 306 transitions. [2021-03-25 12:17:11,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 352 transitions, 9129 flow [2021-03-25 12:17:11,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 352 transitions, 9065 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:11,253 INFO L241 Difference]: Finished difference. Result has 402 places, 343 transitions, 8275 flow [2021-03-25 12:17:11,253 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8305, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8275, PETRI_PLACES=402, PETRI_TRANSITIONS=343} [2021-03-25 12:17:11,253 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 355 predicate places. [2021-03-25 12:17:11,253 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:11,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 343 transitions, 8275 flow [2021-03-25 12:17:11,253 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 343 transitions, 8275 flow [2021-03-25 12:17:11,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 343 transitions, 8275 flow [2021-03-25 12:17:11,334 INFO L129 PetriNetUnfolder]: 198/577 cut-off events. [2021-03-25 12:17:11,334 INFO L130 PetriNetUnfolder]: For 36588/36629 co-relation queries the response was YES. [2021-03-25 12:17:11,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7801 conditions, 577 events. 198/577 cut-off events. For 36588/36629 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3983 event pairs, 36 based on Foata normal form. 10/580 useless extension candidates. Maximal degree in co-relation 7642. Up to 206 conditions per place. [2021-03-25 12:17:11,344 INFO L142 LiptonReduction]: Number of co-enabled transitions 446 [2021-03-25 12:17:11,358 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:11,358 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:11,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-03-25 12:17:11,358 INFO L480 AbstractCegarLoop]: Abstraction has has 399 places, 343 transitions, 8275 flow [2021-03-25 12:17:11,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:11,358 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:11,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-03-25 12:17:11,358 INFO L428 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:11,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:11,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1910124469, now seen corresponding path program 186 times [2021-03-25 12:17:11,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:11,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016754327] [2021-03-25 12:17:11,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:11,364 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:11,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:11,369 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:11,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:11,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:11,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:11,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:11,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:11,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:11,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:11,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:11,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:11,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:11,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:11,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:11,437 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:11,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:11,451 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:11,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:11,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016754327] [2021-03-25 12:17:11,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:11,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:11,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764325668] [2021-03-25 12:17:11,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:11,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:11,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:11,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:11,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:11,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 343 transitions, 8275 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:11,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:11,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:11,845 INFO L129 PetriNetUnfolder]: 231/618 cut-off events. [2021-03-25 12:17:11,845 INFO L130 PetriNetUnfolder]: For 38963/38986 co-relation queries the response was YES. [2021-03-25 12:17:11,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8799 conditions, 618 events. 231/618 cut-off events. For 38963/38986 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4046 event pairs, 34 based on Foata normal form. 12/629 useless extension candidates. Maximal degree in co-relation 8638. Up to 474 conditions per place. [2021-03-25 12:17:11,854 INFO L132 encePairwiseOnDemand]: 92/106 looper letters, 273 selfloop transitions, 62 changer transitions 4/347 dead transitions. [2021-03-25 12:17:11,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 347 transitions, 8995 flow [2021-03-25 12:17:11,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 341 transitions. [2021-03-25 12:17:11,855 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29245283018867924 [2021-03-25 12:17:11,855 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 341 transitions. [2021-03-25 12:17:11,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 341 transitions. [2021-03-25 12:17:11,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:11,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 341 transitions. [2021-03-25 12:17:11,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.0) internal successors, (341), 11 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,856 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:11,856 INFO L185 Difference]: Start difference. First operand has 399 places, 343 transitions, 8275 flow. Second operand 11 states and 341 transitions. [2021-03-25 12:17:11,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 347 transitions, 8995 flow [2021-03-25 12:17:12,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 347 transitions, 8888 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-03-25 12:17:12,084 INFO L241 Difference]: Finished difference. Result has 397 places, 340 transitions, 8241 flow [2021-03-25 12:17:12,084 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8168, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8241, PETRI_PLACES=397, PETRI_TRANSITIONS=340} [2021-03-25 12:17:12,084 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 350 predicate places. [2021-03-25 12:17:12,085 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:12,085 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 397 places, 340 transitions, 8241 flow [2021-03-25 12:17:12,085 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 397 places, 340 transitions, 8241 flow [2021-03-25 12:17:12,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 340 transitions, 8241 flow [2021-03-25 12:17:12,169 INFO L129 PetriNetUnfolder]: 198/579 cut-off events. [2021-03-25 12:17:12,169 INFO L130 PetriNetUnfolder]: For 35123/35139 co-relation queries the response was YES. [2021-03-25 12:17:12,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7932 conditions, 579 events. 198/579 cut-off events. For 35123/35139 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4014 event pairs, 25 based on Foata normal form. 4/581 useless extension candidates. Maximal degree in co-relation 7777. Up to 207 conditions per place. [2021-03-25 12:17:12,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 440 [2021-03-25 12:17:12,195 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:12,195 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:12,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-03-25 12:17:12,195 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 340 transitions, 8241 flow [2021-03-25 12:17:12,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:12,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:12,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:12,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-03-25 12:17:12,195 INFO L428 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:12,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:12,195 INFO L82 PathProgramCache]: Analyzing trace with hash -394943989, now seen corresponding path program 187 times [2021-03-25 12:17:12,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:12,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230189632] [2021-03-25 12:17:12,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:12,201 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:12,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:12,206 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:12,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:12,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:12,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:12,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:12,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:12,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:12,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:12,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:12,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:12,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:12,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:12,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:12,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:12,272 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:12,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:12,286 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:12,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:12,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230189632] [2021-03-25 12:17:12,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:12,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:12,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909388179] [2021-03-25 12:17:12,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:12,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:12,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:12,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:12,289 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:12,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 340 transitions, 8241 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:12,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:12,289 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:12,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:12,688 INFO L129 PetriNetUnfolder]: 230/615 cut-off events. [2021-03-25 12:17:12,688 INFO L130 PetriNetUnfolder]: For 38975/39018 co-relation queries the response was YES. [2021-03-25 12:17:12,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8755 conditions, 615 events. 230/615 cut-off events. For 38975/39018 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4060 event pairs, 35 based on Foata normal form. 19/633 useless extension candidates. Maximal degree in co-relation 8598. Up to 474 conditions per place. [2021-03-25 12:17:12,696 INFO L132 encePairwiseOnDemand]: 92/106 looper letters, 274 selfloop transitions, 55 changer transitions 6/343 dead transitions. [2021-03-25 12:17:12,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 343 transitions, 8923 flow [2021-03-25 12:17:12,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 341 transitions. [2021-03-25 12:17:12,698 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29245283018867924 [2021-03-25 12:17:12,698 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 341 transitions. [2021-03-25 12:17:12,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 341 transitions. [2021-03-25 12:17:12,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:12,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 341 transitions. [2021-03-25 12:17:12,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.0) internal successors, (341), 11 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:12,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:12,699 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:12,699 INFO L185 Difference]: Start difference. First operand has 393 places, 340 transitions, 8241 flow. Second operand 11 states and 341 transitions. [2021-03-25 12:17:12,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 343 transitions, 8923 flow [2021-03-25 12:17:12,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 343 transitions, 8787 flow, removed 1 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:12,914 INFO L241 Difference]: Finished difference. Result has 395 places, 334 transitions, 8052 flow [2021-03-25 12:17:12,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8105, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8052, PETRI_PLACES=395, PETRI_TRANSITIONS=334} [2021-03-25 12:17:12,914 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 348 predicate places. [2021-03-25 12:17:12,914 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:12,914 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 334 transitions, 8052 flow [2021-03-25 12:17:12,914 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 334 transitions, 8052 flow [2021-03-25 12:17:12,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 391 places, 334 transitions, 8052 flow [2021-03-25 12:17:12,988 INFO L129 PetriNetUnfolder]: 188/547 cut-off events. [2021-03-25 12:17:12,988 INFO L130 PetriNetUnfolder]: For 34674/34764 co-relation queries the response was YES. [2021-03-25 12:17:12,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7371 conditions, 547 events. 188/547 cut-off events. For 34674/34764 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3732 event pairs, 26 based on Foata normal form. 17/556 useless extension candidates. Maximal degree in co-relation 7216. Up to 191 conditions per place. [2021-03-25 12:17:12,997 INFO L142 LiptonReduction]: Number of co-enabled transitions 426 [2021-03-25 12:17:13,011 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:13,011 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:13,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 12:17:13,011 INFO L480 AbstractCegarLoop]: Abstraction has has 391 places, 334 transitions, 8052 flow [2021-03-25 12:17:13,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,011 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:13,011 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:13,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-03-25 12:17:13,011 INFO L428 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:13,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:13,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1333388175, now seen corresponding path program 188 times [2021-03-25 12:17:13,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:13,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240924027] [2021-03-25 12:17:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:13,019 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:13,023 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:13,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:13,030 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:17:13,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:13,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:13,062 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:13,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:13,074 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:13,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:13,078 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:13,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:13,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240924027] [2021-03-25 12:17:13,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:13,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:13,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506460086] [2021-03-25 12:17:13,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:13,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:13,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:13,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:13,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:13,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 334 transitions, 8052 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:13,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:13,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:13,366 INFO L129 PetriNetUnfolder]: 229/607 cut-off events. [2021-03-25 12:17:13,366 INFO L130 PetriNetUnfolder]: For 39456/39479 co-relation queries the response was YES. [2021-03-25 12:17:13,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8671 conditions, 607 events. 229/607 cut-off events. For 39456/39479 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3947 event pairs, 39 based on Foata normal form. 10/615 useless extension candidates. Maximal degree in co-relation 8514. Up to 501 conditions per place. [2021-03-25 12:17:13,374 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 304 selfloop transitions, 24 changer transitions 2/338 dead transitions. [2021-03-25 12:17:13,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 338 transitions, 8771 flow [2021-03-25 12:17:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:17:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:17:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2021-03-25 12:17:13,376 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2840670859538784 [2021-03-25 12:17:13,376 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 271 transitions. [2021-03-25 12:17:13,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 271 transitions. [2021-03-25 12:17:13,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:13,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 271 transitions. [2021-03-25 12:17:13,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.11111111111111) internal successors, (271), 9 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,376 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,376 INFO L185 Difference]: Start difference. First operand has 391 places, 334 transitions, 8052 flow. Second operand 9 states and 271 transitions. [2021-03-25 12:17:13,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 338 transitions, 8771 flow [2021-03-25 12:17:13,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 338 transitions, 8589 flow, removed 1 selfloop flow, removed 12 redundant places. [2021-03-25 12:17:13,601 INFO L241 Difference]: Finished difference. Result has 389 places, 333 transitions, 7908 flow [2021-03-25 12:17:13,601 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7870, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7908, PETRI_PLACES=389, PETRI_TRANSITIONS=333} [2021-03-25 12:17:13,601 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 342 predicate places. [2021-03-25 12:17:13,601 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:13,601 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 333 transitions, 7908 flow [2021-03-25 12:17:13,601 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 333 transitions, 7908 flow [2021-03-25 12:17:13,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 388 places, 333 transitions, 7908 flow [2021-03-25 12:17:13,676 INFO L129 PetriNetUnfolder]: 190/549 cut-off events. [2021-03-25 12:17:13,676 INFO L130 PetriNetUnfolder]: For 34858/34946 co-relation queries the response was YES. [2021-03-25 12:17:13,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7418 conditions, 549 events. 190/549 cut-off events. For 34858/34946 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3741 event pairs, 35 based on Foata normal form. 15/556 useless extension candidates. Maximal degree in co-relation 7242. Up to 194 conditions per place. [2021-03-25 12:17:13,685 INFO L142 LiptonReduction]: Number of co-enabled transitions 426 [2021-03-25 12:17:13,698 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:13,698 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:13,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-25 12:17:13,699 INFO L480 AbstractCegarLoop]: Abstraction has has 388 places, 333 transitions, 7908 flow [2021-03-25 12:17:13,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:13,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:13,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-03-25 12:17:13,699 INFO L428 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:13,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:13,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1258717925, now seen corresponding path program 189 times [2021-03-25 12:17:13,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:13,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040127710] [2021-03-25 12:17:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:13,705 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:13,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:13,709 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:13,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:13,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:13,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:13,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:13,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:13,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,772 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:13,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:13,786 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:13,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:13,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040127710] [2021-03-25 12:17:13,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:13,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:13,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725104357] [2021-03-25 12:17:13,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:13,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:13,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:13,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:13,789 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:13,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 333 transitions, 7908 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:13,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:13,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:13,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:14,108 INFO L129 PetriNetUnfolder]: 228/612 cut-off events. [2021-03-25 12:17:14,109 INFO L130 PetriNetUnfolder]: For 38358/38381 co-relation queries the response was YES. [2021-03-25 12:17:14,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8597 conditions, 612 events. 228/612 cut-off events. For 38358/38381 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4045 event pairs, 35 based on Foata normal form. 8/617 useless extension candidates. Maximal degree in co-relation 8417. Up to 505 conditions per place. [2021-03-25 12:17:14,116 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 302 selfloop transitions, 20 changer transitions 5/335 dead transitions. [2021-03-25 12:17:14,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 335 transitions, 8597 flow [2021-03-25 12:17:14,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:14,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 322 transitions. [2021-03-25 12:17:14,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27615780445969124 [2021-03-25 12:17:14,117 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 322 transitions. [2021-03-25 12:17:14,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 322 transitions. [2021-03-25 12:17:14,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:14,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 322 transitions. [2021-03-25 12:17:14,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.272727272727273) internal successors, (322), 11 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,118 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,118 INFO L185 Difference]: Start difference. First operand has 388 places, 333 transitions, 7908 flow. Second operand 11 states and 322 transitions. [2021-03-25 12:17:14,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 335 transitions, 8597 flow [2021-03-25 12:17:14,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 335 transitions, 8499 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:14,308 INFO L241 Difference]: Finished difference. Result has 391 places, 329 transitions, 7748 flow [2021-03-25 12:17:14,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7810, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7748, PETRI_PLACES=391, PETRI_TRANSITIONS=329} [2021-03-25 12:17:14,308 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 344 predicate places. [2021-03-25 12:17:14,308 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:14,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 391 places, 329 transitions, 7748 flow [2021-03-25 12:17:14,308 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 391 places, 329 transitions, 7748 flow [2021-03-25 12:17:14,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 383 places, 329 transitions, 7748 flow [2021-03-25 12:17:14,376 INFO L129 PetriNetUnfolder]: 184/533 cut-off events. [2021-03-25 12:17:14,376 INFO L130 PetriNetUnfolder]: For 34062/34159 co-relation queries the response was YES. [2021-03-25 12:17:14,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7104 conditions, 533 events. 184/533 cut-off events. For 34062/34159 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3613 event pairs, 36 based on Foata normal form. 19/545 useless extension candidates. Maximal degree in co-relation 6949. Up to 184 conditions per place. [2021-03-25 12:17:14,384 INFO L142 LiptonReduction]: Number of co-enabled transitions 424 [2021-03-25 12:17:14,397 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:14,397 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:14,397 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 12:17:14,397 INFO L480 AbstractCegarLoop]: Abstraction has has 383 places, 329 transitions, 7748 flow [2021-03-25 12:17:14,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:14,397 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:14,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-03-25 12:17:14,398 INFO L428 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:14,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:14,398 INFO L82 PathProgramCache]: Analyzing trace with hash 736712323, now seen corresponding path program 190 times [2021-03-25 12:17:14,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:14,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072770074] [2021-03-25 12:17:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:14,403 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:14,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:14,408 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:14,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:14,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:14,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:14,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:14,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:14,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:14,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:14,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:14,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:14,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:14,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:14,467 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:14,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:14,481 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:14,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:14,496 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:14,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072770074] [2021-03-25 12:17:14,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:14,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:14,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340516865] [2021-03-25 12:17:14,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:14,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:14,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:14,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:14,499 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 106 [2021-03-25 12:17:14,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 329 transitions, 7748 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:14,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 106 [2021-03-25 12:17:14,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:14,885 INFO L129 PetriNetUnfolder]: 227/612 cut-off events. [2021-03-25 12:17:14,886 INFO L130 PetriNetUnfolder]: For 38172/38214 co-relation queries the response was YES. [2021-03-25 12:17:14,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8506 conditions, 612 events. 227/612 cut-off events. For 38172/38214 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4029 event pairs, 33 based on Foata normal form. 11/620 useless extension candidates. Maximal degree in co-relation 8349. Up to 465 conditions per place. [2021-03-25 12:17:14,894 INFO L132 encePairwiseOnDemand]: 93/106 looper letters, 255 selfloop transitions, 53 changer transitions 16/332 dead transitions. [2021-03-25 12:17:14,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 332 transitions, 8460 flow [2021-03-25 12:17:14,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:17:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:17:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 361 transitions. [2021-03-25 12:17:14,896 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2838050314465409 [2021-03-25 12:17:14,896 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 361 transitions. [2021-03-25 12:17:14,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 361 transitions. [2021-03-25 12:17:14,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:14,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 361 transitions. [2021-03-25 12:17:14,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.083333333333332) internal successors, (361), 12 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,897 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:14,897 INFO L185 Difference]: Start difference. First operand has 383 places, 329 transitions, 7748 flow. Second operand 12 states and 361 transitions. [2021-03-25 12:17:14,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 332 transitions, 8460 flow [2021-03-25 12:17:15,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 332 transitions, 8386 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:15,098 INFO L241 Difference]: Finished difference. Result has 386 places, 315 transitions, 7431 flow [2021-03-25 12:17:15,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7674, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7431, PETRI_PLACES=386, PETRI_TRANSITIONS=315} [2021-03-25 12:17:15,098 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 339 predicate places. [2021-03-25 12:17:15,098 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:15,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 315 transitions, 7431 flow [2021-03-25 12:17:15,098 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 315 transitions, 7431 flow [2021-03-25 12:17:15,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 315 transitions, 7431 flow [2021-03-25 12:17:15,170 INFO L129 PetriNetUnfolder]: 195/564 cut-off events. [2021-03-25 12:17:15,170 INFO L130 PetriNetUnfolder]: For 33118/33149 co-relation queries the response was YES. [2021-03-25 12:17:15,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7667 conditions, 564 events. 195/564 cut-off events. For 33118/33149 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3824 event pairs, 15 based on Foata normal form. 3/560 useless extension candidates. Maximal degree in co-relation 7513. Up to 209 conditions per place. [2021-03-25 12:17:15,179 INFO L142 LiptonReduction]: Number of co-enabled transitions 424 [2021-03-25 12:17:15,236 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:15,236 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:15,237 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-03-25 12:17:15,237 INFO L480 AbstractCegarLoop]: Abstraction has has 378 places, 314 transitions, 7421 flow [2021-03-25 12:17:15,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:15,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:15,237 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:15,237 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-03-25 12:17:15,237 INFO L428 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:15,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:15,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1379148638, now seen corresponding path program 8 times [2021-03-25 12:17:15,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:15,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607388076] [2021-03-25 12:17:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:15,243 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:15,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:15,247 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:15,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:15,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:15,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:15,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:15,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:15,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:15,312 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:15,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:15,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:15,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:15,330 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:15,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:15,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607388076] [2021-03-25 12:17:15,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:15,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:15,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464640363] [2021-03-25 12:17:15,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:15,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:15,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:15,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:15,333 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:15,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 314 transitions, 7421 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:15,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:15,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:15,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:15,664 INFO L129 PetriNetUnfolder]: 221/594 cut-off events. [2021-03-25 12:17:15,664 INFO L130 PetriNetUnfolder]: For 37419/37442 co-relation queries the response was YES. [2021-03-25 12:17:15,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8325 conditions, 594 events. 221/594 cut-off events. For 37419/37442 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3877 event pairs, 35 based on Foata normal form. 8/599 useless extension candidates. Maximal degree in co-relation 8169. Up to 483 conditions per place. [2021-03-25 12:17:15,672 INFO L132 encePairwiseOnDemand]: 95/107 looper letters, 276 selfloop transitions, 32 changer transitions 2/318 dead transitions. [2021-03-25 12:17:15,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 318 transitions, 8113 flow [2021-03-25 12:17:15,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 328 transitions. [2021-03-25 12:17:15,674 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2786745964316058 [2021-03-25 12:17:15,674 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 328 transitions. [2021-03-25 12:17:15,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 328 transitions. [2021-03-25 12:17:15,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:15,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 328 transitions. [2021-03-25 12:17:15,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.818181818181817) internal successors, (328), 11 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:15,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:15,675 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:15,675 INFO L185 Difference]: Start difference. First operand has 378 places, 314 transitions, 7421 flow. Second operand 11 states and 328 transitions. [2021-03-25 12:17:15,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 318 transitions, 8113 flow [2021-03-25 12:17:15,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 318 transitions, 7834 flow, removed 15 selfloop flow, removed 21 redundant places. [2021-03-25 12:17:15,869 INFO L241 Difference]: Finished difference. Result has 370 places, 315 transitions, 7241 flow [2021-03-25 12:17:15,870 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=7142, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7241, PETRI_PLACES=370, PETRI_TRANSITIONS=315} [2021-03-25 12:17:15,870 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 323 predicate places. [2021-03-25 12:17:15,870 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:15,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 315 transitions, 7241 flow [2021-03-25 12:17:15,870 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 315 transitions, 7241 flow [2021-03-25 12:17:15,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 315 transitions, 7241 flow [2021-03-25 12:17:15,941 INFO L129 PetriNetUnfolder]: 187/548 cut-off events. [2021-03-25 12:17:15,941 INFO L130 PetriNetUnfolder]: For 33497/33554 co-relation queries the response was YES. [2021-03-25 12:17:15,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7299 conditions, 548 events. 187/548 cut-off events. For 33497/33554 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3741 event pairs, 18 based on Foata normal form. 14/560 useless extension candidates. Maximal degree in co-relation 7128. Up to 198 conditions per place. [2021-03-25 12:17:15,950 INFO L142 LiptonReduction]: Number of co-enabled transitions 424 [2021-03-25 12:17:15,963 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:15,963 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:15,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-25 12:17:15,963 INFO L480 AbstractCegarLoop]: Abstraction has has 369 places, 315 transitions, 7241 flow [2021-03-25 12:17:15,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:15,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:15,963 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:15,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-03-25 12:17:15,963 INFO L428 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:15,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:15,964 INFO L82 PathProgramCache]: Analyzing trace with hash 2000008443, now seen corresponding path program 1 times [2021-03-25 12:17:15,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:15,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755926000] [2021-03-25 12:17:15,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:15,970 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:15,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:15,974 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:15,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:15,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:15,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:15,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:16,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:16,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:16,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:16,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:16,047 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:16,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:16,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755926000] [2021-03-25 12:17:16,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:16,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:16,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690311435] [2021-03-25 12:17:16,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:16,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:16,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:16,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:16,050 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:16,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 315 transitions, 7241 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:16,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:16,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:16,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:16,369 INFO L129 PetriNetUnfolder]: 220/593 cut-off events. [2021-03-25 12:17:16,369 INFO L130 PetriNetUnfolder]: For 36384/36407 co-relation queries the response was YES. [2021-03-25 12:17:16,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8216 conditions, 593 events. 220/593 cut-off events. For 36384/36407 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3879 event pairs, 33 based on Foata normal form. 10/601 useless extension candidates. Maximal degree in co-relation 8041. Up to 474 conditions per place. [2021-03-25 12:17:16,377 INFO L132 encePairwiseOnDemand]: 93/107 looper letters, 269 selfloop transitions, 36 changer transitions 4/317 dead transitions. [2021-03-25 12:17:16,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 317 transitions, 7896 flow [2021-03-25 12:17:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2021-03-25 12:17:16,379 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2803738317757009 [2021-03-25 12:17:16,379 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 330 transitions. [2021-03-25 12:17:16,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 330 transitions. [2021-03-25 12:17:16,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:16,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 330 transitions. [2021-03-25 12:17:16,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.0) internal successors, (330), 11 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:16,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:16,380 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:16,380 INFO L185 Difference]: Start difference. First operand has 369 places, 315 transitions, 7241 flow. Second operand 11 states and 330 transitions. [2021-03-25 12:17:16,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 317 transitions, 7896 flow [2021-03-25 12:17:16,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 317 transitions, 7814 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:16,570 INFO L241 Difference]: Finished difference. Result has 371 places, 312 transitions, 7180 flow [2021-03-25 12:17:16,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=7159, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7180, PETRI_PLACES=371, PETRI_TRANSITIONS=312} [2021-03-25 12:17:16,570 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 324 predicate places. [2021-03-25 12:17:16,570 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:16,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 312 transitions, 7180 flow [2021-03-25 12:17:16,570 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 312 transitions, 7180 flow [2021-03-25 12:17:16,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 365 places, 312 transitions, 7180 flow [2021-03-25 12:17:16,643 INFO L129 PetriNetUnfolder]: 186/540 cut-off events. [2021-03-25 12:17:16,643 INFO L130 PetriNetUnfolder]: For 32863/32937 co-relation queries the response was YES. [2021-03-25 12:17:16,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7156 conditions, 540 events. 186/540 cut-off events. For 32863/32937 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3681 event pairs, 27 based on Foata normal form. 11/544 useless extension candidates. Maximal degree in co-relation 7006. Up to 200 conditions per place. [2021-03-25 12:17:16,653 INFO L142 LiptonReduction]: Number of co-enabled transitions 422 [2021-03-25 12:17:16,665 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:16,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:16,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-03-25 12:17:16,665 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 312 transitions, 7180 flow [2021-03-25 12:17:16,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:16,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:16,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:16,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-03-25 12:17:16,665 INFO L428 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:16,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:16,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2101608577, now seen corresponding path program 191 times [2021-03-25 12:17:16,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:16,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359593945] [2021-03-25 12:17:16,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:16,671 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:16,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:16,676 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:16,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:16,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:16,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:16,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:16,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:16,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:16,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:16,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:16,745 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:16,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:16,759 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:16,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:16,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359593945] [2021-03-25 12:17:16,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:16,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:16,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050035562] [2021-03-25 12:17:16,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:16,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:16,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:16,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:16,763 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:16,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 312 transitions, 7180 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:16,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:16,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:16,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:17,093 INFO L129 PetriNetUnfolder]: 219/589 cut-off events. [2021-03-25 12:17:17,093 INFO L130 PetriNetUnfolder]: For 36738/36771 co-relation queries the response was YES. [2021-03-25 12:17:17,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8180 conditions, 589 events. 219/589 cut-off events. For 36738/36771 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3865 event pairs, 33 based on Foata normal form. 9/595 useless extension candidates. Maximal degree in co-relation 8028. Up to 454 conditions per place. [2021-03-25 12:17:17,102 INFO L132 encePairwiseOnDemand]: 94/107 looper letters, 241 selfloop transitions, 55 changer transitions 11/315 dead transitions. [2021-03-25 12:17:17,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 315 transitions, 7863 flow [2021-03-25 12:17:17,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:17,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 334 transitions. [2021-03-25 12:17:17,103 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28377230246389124 [2021-03-25 12:17:17,103 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 334 transitions. [2021-03-25 12:17:17,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 334 transitions. [2021-03-25 12:17:17,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:17,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 334 transitions. [2021-03-25 12:17:17,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.363636363636363) internal successors, (334), 11 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,104 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,104 INFO L185 Difference]: Start difference. First operand has 365 places, 312 transitions, 7180 flow. Second operand 11 states and 334 transitions. [2021-03-25 12:17:17,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 315 transitions, 7863 flow [2021-03-25 12:17:17,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 315 transitions, 7779 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:17,289 INFO L241 Difference]: Finished difference. Result has 367 places, 303 transitions, 7007 flow [2021-03-25 12:17:17,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=7096, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7007, PETRI_PLACES=367, PETRI_TRANSITIONS=303} [2021-03-25 12:17:17,289 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 320 predicate places. [2021-03-25 12:17:17,289 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:17,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 367 places, 303 transitions, 7007 flow [2021-03-25 12:17:17,290 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 367 places, 303 transitions, 7007 flow [2021-03-25 12:17:17,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 363 places, 303 transitions, 7007 flow [2021-03-25 12:17:17,363 INFO L129 PetriNetUnfolder]: 178/515 cut-off events. [2021-03-25 12:17:17,363 INFO L130 PetriNetUnfolder]: For 31037/31114 co-relation queries the response was YES. [2021-03-25 12:17:17,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6904 conditions, 515 events. 178/515 cut-off events. For 31037/31114 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3435 event pairs, 15 based on Foata normal form. 15/522 useless extension candidates. Maximal degree in co-relation 6755. Up to 190 conditions per place. [2021-03-25 12:17:17,372 INFO L142 LiptonReduction]: Number of co-enabled transitions 418 [2021-03-25 12:17:17,384 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:17,384 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:17,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-03-25 12:17:17,384 INFO L480 AbstractCegarLoop]: Abstraction has has 363 places, 303 transitions, 7007 flow [2021-03-25 12:17:17,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,384 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:17,384 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:17,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-03-25 12:17:17,384 INFO L428 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:17,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:17,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1543220905, now seen corresponding path program 192 times [2021-03-25 12:17:17,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:17,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214712950] [2021-03-25 12:17:17,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:17,404 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:17,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:17,409 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:17,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:17,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:17,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:17,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:17,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:17,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:17,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:17,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:17,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:17,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:17,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:17,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:17,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:17,465 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:17,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:17,479 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:17,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:17,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214712950] [2021-03-25 12:17:17,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:17,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:17,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472159604] [2021-03-25 12:17:17,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:17,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:17,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:17,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:17,482 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:17,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 303 transitions, 7007 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:17,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:17,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:17,820 INFO L129 PetriNetUnfolder]: 217/574 cut-off events. [2021-03-25 12:17:17,820 INFO L130 PetriNetUnfolder]: For 36907/36949 co-relation queries the response was YES. [2021-03-25 12:17:17,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8037 conditions, 574 events. 217/574 cut-off events. For 36907/36949 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3675 event pairs, 32 based on Foata normal form. 15/586 useless extension candidates. Maximal degree in co-relation 7886. Up to 447 conditions per place. [2021-03-25 12:17:17,828 INFO L132 encePairwiseOnDemand]: 95/107 looper letters, 235 selfloop transitions, 59 changer transitions 4/306 dead transitions. [2021-03-25 12:17:17,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 306 transitions, 7616 flow [2021-03-25 12:17:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2021-03-25 12:17:17,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2897196261682243 [2021-03-25 12:17:17,829 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 310 transitions. [2021-03-25 12:17:17,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 310 transitions. [2021-03-25 12:17:17,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:17,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 310 transitions. [2021-03-25 12:17:17,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,830 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:17,830 INFO L185 Difference]: Start difference. First operand has 363 places, 303 transitions, 7007 flow. Second operand 10 states and 310 transitions. [2021-03-25 12:17:17,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 306 transitions, 7616 flow [2021-03-25 12:17:17,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 306 transitions, 7429 flow, removed 9 selfloop flow, removed 16 redundant places. [2021-03-25 12:17:17,992 INFO L241 Difference]: Finished difference. Result has 357 places, 299 transitions, 6927 flow [2021-03-25 12:17:17,992 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=6820, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6927, PETRI_PLACES=357, PETRI_TRANSITIONS=299} [2021-03-25 12:17:17,992 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 310 predicate places. [2021-03-25 12:17:17,992 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:17,992 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 357 places, 299 transitions, 6927 flow [2021-03-25 12:17:17,992 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 357 places, 299 transitions, 6927 flow [2021-03-25 12:17:17,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 353 places, 299 transitions, 6927 flow [2021-03-25 12:17:18,062 INFO L129 PetriNetUnfolder]: 193/542 cut-off events. [2021-03-25 12:17:18,063 INFO L130 PetriNetUnfolder]: For 34313/34367 co-relation queries the response was YES. [2021-03-25 12:17:18,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7436 conditions, 542 events. 193/542 cut-off events. For 34313/34367 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3571 event pairs, 16 based on Foata normal form. 3/540 useless extension candidates. Maximal degree in co-relation 7269. Up to 210 conditions per place. [2021-03-25 12:17:18,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-25 12:17:18,083 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:18,083 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:18,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-25 12:17:18,083 INFO L480 AbstractCegarLoop]: Abstraction has has 353 places, 299 transitions, 6927 flow [2021-03-25 12:17:18,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:18,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:18,083 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-03-25 12:17:18,083 INFO L428 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:18,084 INFO L82 PathProgramCache]: Analyzing trace with hash 2083081273, now seen corresponding path program 193 times [2021-03-25 12:17:18,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:18,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937598790] [2021-03-25 12:17:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:18,089 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:18,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:18,094 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:18,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:18,101 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:17:18,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:18,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:18,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:18,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:18,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:18,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:18,145 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:18,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:18,158 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:18,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:18,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937598790] [2021-03-25 12:17:18,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:18,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:18,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706286450] [2021-03-25 12:17:18,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:18,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:18,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:18,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:18,161 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:18,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 299 transitions, 6927 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:18,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:18,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:18,422 INFO L129 PetriNetUnfolder]: 216/573 cut-off events. [2021-03-25 12:17:18,422 INFO L130 PetriNetUnfolder]: For 36240/36263 co-relation queries the response was YES. [2021-03-25 12:17:18,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8003 conditions, 573 events. 216/573 cut-off events. For 36240/36263 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3678 event pairs, 32 based on Foata normal form. 10/581 useless extension candidates. Maximal degree in co-relation 7832. Up to 465 conditions per place. [2021-03-25 12:17:18,429 INFO L132 encePairwiseOnDemand]: 95/107 looper letters, 269 selfloop transitions, 23 changer transitions 3/303 dead transitions. [2021-03-25 12:17:18,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 303 transitions, 7549 flow [2021-03-25 12:17:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:18,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2021-03-25 12:17:18,430 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2775700934579439 [2021-03-25 12:17:18,430 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 297 transitions. [2021-03-25 12:17:18,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 297 transitions. [2021-03-25 12:17:18,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:18,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 297 transitions. [2021-03-25 12:17:18,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.7) internal successors, (297), 10 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,431 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,431 INFO L185 Difference]: Start difference. First operand has 353 places, 299 transitions, 6927 flow. Second operand 10 states and 297 transitions. [2021-03-25 12:17:18,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 303 transitions, 7549 flow [2021-03-25 12:17:18,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 303 transitions, 7370 flow, removed 5 selfloop flow, removed 12 redundant places. [2021-03-25 12:17:18,603 INFO L241 Difference]: Finished difference. Result has 352 places, 297 transitions, 6780 flow [2021-03-25 12:17:18,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=6748, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6780, PETRI_PLACES=352, PETRI_TRANSITIONS=297} [2021-03-25 12:17:18,603 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 305 predicate places. [2021-03-25 12:17:18,603 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:18,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 297 transitions, 6780 flow [2021-03-25 12:17:18,603 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 297 transitions, 6780 flow [2021-03-25 12:17:18,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 348 places, 297 transitions, 6780 flow [2021-03-25 12:17:18,668 INFO L129 PetriNetUnfolder]: 180/511 cut-off events. [2021-03-25 12:17:18,668 INFO L130 PetriNetUnfolder]: For 32618/32732 co-relation queries the response was YES. [2021-03-25 12:17:18,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6877 conditions, 511 events. 180/511 cut-off events. For 32618/32732 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3423 event pairs, 21 based on Foata normal form. 19/524 useless extension candidates. Maximal degree in co-relation 6732. Up to 196 conditions per place. [2021-03-25 12:17:18,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 408 [2021-03-25 12:17:18,687 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:18,687 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:18,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 12:17:18,687 INFO L480 AbstractCegarLoop]: Abstraction has has 348 places, 297 transitions, 6780 flow [2021-03-25 12:17:18,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,687 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:18,687 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:18,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-03-25 12:17:18,687 INFO L428 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:18,688 INFO L82 PathProgramCache]: Analyzing trace with hash 767022122, now seen corresponding path program 9 times [2021-03-25 12:17:18,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:18,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997333086] [2021-03-25 12:17:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:18,693 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:18,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:18,698 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:18,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:18,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:18,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:18,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:18,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:18,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:18,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:18,759 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:18,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:18,773 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:18,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:18,777 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:18,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:18,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997333086] [2021-03-25 12:17:18,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:18,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:18,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368914964] [2021-03-25 12:17:18,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:18,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:18,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:18,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:18,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:18,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 297 transitions, 6780 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:18,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:18,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:18,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:19,113 INFO L129 PetriNetUnfolder]: 216/571 cut-off events. [2021-03-25 12:17:19,113 INFO L130 PetriNetUnfolder]: For 33950/33973 co-relation queries the response was YES. [2021-03-25 12:17:19,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7914 conditions, 571 events. 216/571 cut-off events. For 33950/33973 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3648 event pairs, 35 based on Foata normal form. 8/576 useless extension candidates. Maximal degree in co-relation 7767. Up to 466 conditions per place. [2021-03-25 12:17:19,121 INFO L132 encePairwiseOnDemand]: 96/107 looper letters, 262 selfloop transitions, 29 changer transitions 2/301 dead transitions. [2021-03-25 12:17:19,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 301 transitions, 7474 flow [2021-03-25 12:17:19,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 325 transitions. [2021-03-25 12:17:19,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27612574341546303 [2021-03-25 12:17:19,122 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 325 transitions. [2021-03-25 12:17:19,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 325 transitions. [2021-03-25 12:17:19,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:19,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 325 transitions. [2021-03-25 12:17:19,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 11 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,123 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,123 INFO L185 Difference]: Start difference. First operand has 348 places, 297 transitions, 6780 flow. Second operand 11 states and 325 transitions. [2021-03-25 12:17:19,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 301 transitions, 7474 flow [2021-03-25 12:17:19,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 301 transitions, 7399 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:19,291 INFO L241 Difference]: Finished difference. Result has 352 places, 298 transitions, 6813 flow [2021-03-25 12:17:19,291 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=6705, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6813, PETRI_PLACES=352, PETRI_TRANSITIONS=298} [2021-03-25 12:17:19,291 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 305 predicate places. [2021-03-25 12:17:19,291 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:19,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 298 transitions, 6813 flow [2021-03-25 12:17:19,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 298 transitions, 6813 flow [2021-03-25 12:17:19,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 351 places, 298 transitions, 6813 flow [2021-03-25 12:17:19,359 INFO L129 PetriNetUnfolder]: 194/539 cut-off events. [2021-03-25 12:17:19,360 INFO L130 PetriNetUnfolder]: For 32384/32437 co-relation queries the response was YES. [2021-03-25 12:17:19,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7389 conditions, 539 events. 194/539 cut-off events. For 32384/32437 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3539 event pairs, 21 based on Foata normal form. 3/537 useless extension candidates. Maximal degree in co-relation 7223. Up to 214 conditions per place. [2021-03-25 12:17:19,385 INFO L142 LiptonReduction]: Number of co-enabled transitions 408 [2021-03-25 12:17:19,396 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:19,396 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:19,396 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-03-25 12:17:19,396 INFO L480 AbstractCegarLoop]: Abstraction has has 351 places, 298 transitions, 6813 flow [2021-03-25 12:17:19,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,396 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:19,396 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:19,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-03-25 12:17:19,396 INFO L428 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:19,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:19,397 INFO L82 PathProgramCache]: Analyzing trace with hash -164582983, now seen corresponding path program 194 times [2021-03-25 12:17:19,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:19,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580900629] [2021-03-25 12:17:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:19,402 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:19,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:19,407 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:19,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:19,413 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:17:19,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:19,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:19,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:19,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:19,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:19,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:19,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:19,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:19,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:19,469 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:19,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:19,483 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:19,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580900629] [2021-03-25 12:17:19,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:19,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:19,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445497787] [2021-03-25 12:17:19,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:19,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:19,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:19,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:19,486 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 107 [2021-03-25 12:17:19,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 298 transitions, 6813 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:19,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 107 [2021-03-25 12:17:19,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:19,759 INFO L129 PetriNetUnfolder]: 215/564 cut-off events. [2021-03-25 12:17:19,759 INFO L130 PetriNetUnfolder]: For 34563/34586 co-relation queries the response was YES. [2021-03-25 12:17:19,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7848 conditions, 564 events. 215/564 cut-off events. For 34563/34586 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3567 event pairs, 34 based on Foata normal form. 10/572 useless extension candidates. Maximal degree in co-relation 7678. Up to 465 conditions per place. [2021-03-25 12:17:19,766 INFO L132 encePairwiseOnDemand]: 94/107 looper letters, 265 selfloop transitions, 20 changer transitions 6/299 dead transitions. [2021-03-25 12:17:19,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 299 transitions, 7399 flow [2021-03-25 12:17:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 320 transitions. [2021-03-25 12:17:19,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27187765505522515 [2021-03-25 12:17:19,767 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 320 transitions. [2021-03-25 12:17:19,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 320 transitions. [2021-03-25 12:17:19,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:19,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 320 transitions. [2021-03-25 12:17:19,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.09090909090909) internal successors, (320), 11 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,768 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:19,768 INFO L185 Difference]: Start difference. First operand has 351 places, 298 transitions, 6813 flow. Second operand 11 states and 320 transitions. [2021-03-25 12:17:19,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 299 transitions, 7399 flow [2021-03-25 12:17:19,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 299 transitions, 7306 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:19,948 INFO L241 Difference]: Finished difference. Result has 352 places, 292 transitions, 6605 flow [2021-03-25 12:17:19,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=6720, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6605, PETRI_PLACES=352, PETRI_TRANSITIONS=292} [2021-03-25 12:17:19,949 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 305 predicate places. [2021-03-25 12:17:19,949 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:19,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 292 transitions, 6605 flow [2021-03-25 12:17:19,949 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 292 transitions, 6605 flow [2021-03-25 12:17:19,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 342 places, 292 transitions, 6605 flow [2021-03-25 12:17:20,011 INFO L129 PetriNetUnfolder]: 173/491 cut-off events. [2021-03-25 12:17:20,011 INFO L130 PetriNetUnfolder]: For 30781/30853 co-relation queries the response was YES. [2021-03-25 12:17:20,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6563 conditions, 491 events. 173/491 cut-off events. For 30781/30853 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3212 event pairs, 18 based on Foata normal form. 19/508 useless extension candidates. Maximal degree in co-relation 6419. Up to 186 conditions per place. [2021-03-25 12:17:20,019 INFO L142 LiptonReduction]: Number of co-enabled transitions 400 [2021-03-25 12:17:20,071 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 12:17:20,071 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:20,071 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-03-25 12:17:20,071 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 292 transitions, 6625 flow [2021-03-25 12:17:20,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,071 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:20,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:20,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-03-25 12:17:20,072 INFO L428 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:20,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1610453003, now seen corresponding path program 195 times [2021-03-25 12:17:20,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:20,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107440934] [2021-03-25 12:17:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:20,080 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:20,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:20,085 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:20,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:20,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:20,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:20,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:20,184 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:20,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:20,204 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:20,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:20,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107440934] [2021-03-25 12:17:20,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:20,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:20,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554025530] [2021-03-25 12:17:20,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:20,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:20,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:20,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:20,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 108 [2021-03-25 12:17:20,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 292 transitions, 6625 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:20,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 108 [2021-03-25 12:17:20,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:20,563 INFO L129 PetriNetUnfolder]: 214/557 cut-off events. [2021-03-25 12:17:20,563 INFO L130 PetriNetUnfolder]: For 33705/33732 co-relation queries the response was YES. [2021-03-25 12:17:20,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7772 conditions, 557 events. 214/557 cut-off events. For 33705/33732 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3481 event pairs, 34 based on Foata normal form. 10/564 useless extension candidates. Maximal degree in co-relation 7626. Up to 438 conditions per place. [2021-03-25 12:17:20,570 INFO L132 encePairwiseOnDemand]: 95/108 looper letters, 235 selfloop transitions, 36 changer transitions 16/295 dead transitions. [2021-03-25 12:17:20,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 295 transitions, 7263 flow [2021-03-25 12:17:20,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:17:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:17:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 358 transitions. [2021-03-25 12:17:20,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2762345679012346 [2021-03-25 12:17:20,572 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 358 transitions. [2021-03-25 12:17:20,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 358 transitions. [2021-03-25 12:17:20,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:20,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 358 transitions. [2021-03-25 12:17:20,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.833333333333332) internal successors, (358), 12 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,573 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,573 INFO L185 Difference]: Start difference. First operand has 342 places, 292 transitions, 6625 flow. Second operand 12 states and 358 transitions. [2021-03-25 12:17:20,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 295 transitions, 7263 flow [2021-03-25 12:17:20,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 295 transitions, 6854 flow, removed 100 selfloop flow, removed 13 redundant places. [2021-03-25 12:17:20,736 INFO L241 Difference]: Finished difference. Result has 342 places, 278 transitions, 6054 flow [2021-03-25 12:17:20,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=6224, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6054, PETRI_PLACES=342, PETRI_TRANSITIONS=278} [2021-03-25 12:17:20,737 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 295 predicate places. [2021-03-25 12:17:20,737 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:20,737 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 342 places, 278 transitions, 6054 flow [2021-03-25 12:17:20,737 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 342 places, 278 transitions, 6054 flow [2021-03-25 12:17:20,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 278 transitions, 6054 flow [2021-03-25 12:17:20,796 INFO L129 PetriNetUnfolder]: 175/493 cut-off events. [2021-03-25 12:17:20,796 INFO L130 PetriNetUnfolder]: For 29109/29179 co-relation queries the response was YES. [2021-03-25 12:17:20,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6394 conditions, 493 events. 175/493 cut-off events. For 29109/29179 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3158 event pairs, 23 based on Foata normal form. 14/505 useless extension candidates. Maximal degree in co-relation 6255. Up to 193 conditions per place. [2021-03-25 12:17:20,803 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 12:17:20,813 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:20,813 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:20,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-03-25 12:17:20,813 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 278 transitions, 6054 flow [2021-03-25 12:17:20,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:20,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:20,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-03-25 12:17:20,813 INFO L428 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:20,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:20,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1303909942, now seen corresponding path program 1 times [2021-03-25 12:17:20,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:20,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716075366] [2021-03-25 12:17:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:20,819 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:20,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:20,824 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:20,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:20,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:20,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:20,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:20,884 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:20,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:20,898 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:20,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:20,914 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:20,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:20,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716075366] [2021-03-25 12:17:20,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:20,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:20,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908428153] [2021-03-25 12:17:20,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:20,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:20,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:20,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:20,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 108 [2021-03-25 12:17:20,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 278 transitions, 6054 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:20,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:20,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 108 [2021-03-25 12:17:20,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:21,307 INFO L129 PetriNetUnfolder]: 222/565 cut-off events. [2021-03-25 12:17:21,307 INFO L130 PetriNetUnfolder]: For 34941/34968 co-relation queries the response was YES. [2021-03-25 12:17:21,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7786 conditions, 565 events. 222/565 cut-off events. For 34941/34968 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3471 event pairs, 26 based on Foata normal form. 14/578 useless extension candidates. Maximal degree in co-relation 7645. Up to 436 conditions per place. [2021-03-25 12:17:21,314 INFO L132 encePairwiseOnDemand]: 94/108 looper letters, 244 selfloop transitions, 52 changer transitions 3/307 dead transitions. [2021-03-25 12:17:21,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 307 transitions, 7521 flow [2021-03-25 12:17:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:17:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:17:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 423 transitions. [2021-03-25 12:17:21,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27976190476190477 [2021-03-25 12:17:21,315 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 423 transitions. [2021-03-25 12:17:21,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 423 transitions. [2021-03-25 12:17:21,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:21,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 423 transitions. [2021-03-25 12:17:21,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.214285714285715) internal successors, (423), 14 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:21,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:21,316 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 108.0) internal successors, (1620), 15 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:21,316 INFO L185 Difference]: Start difference. First operand has 330 places, 278 transitions, 6054 flow. Second operand 14 states and 423 transitions. [2021-03-25 12:17:21,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 307 transitions, 7521 flow [2021-03-25 12:17:21,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 307 transitions, 7381 flow, removed 5 selfloop flow, removed 16 redundant places. [2021-03-25 12:17:21,478 INFO L241 Difference]: Finished difference. Result has 335 places, 295 transitions, 6547 flow [2021-03-25 12:17:21,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=5914, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6547, PETRI_PLACES=335, PETRI_TRANSITIONS=295} [2021-03-25 12:17:21,479 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 288 predicate places. [2021-03-25 12:17:21,479 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:21,479 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 295 transitions, 6547 flow [2021-03-25 12:17:21,479 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 295 transitions, 6547 flow [2021-03-25 12:17:21,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 333 places, 295 transitions, 6547 flow [2021-03-25 12:17:21,545 INFO L129 PetriNetUnfolder]: 188/531 cut-off events. [2021-03-25 12:17:21,545 INFO L130 PetriNetUnfolder]: For 33808/33903 co-relation queries the response was YES. [2021-03-25 12:17:21,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6975 conditions, 531 events. 188/531 cut-off events. For 33808/33903 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3508 event pairs, 25 based on Foata normal form. 16/544 useless extension candidates. Maximal degree in co-relation 6832. Up to 209 conditions per place. [2021-03-25 12:17:21,553 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-25 12:17:21,594 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:21,594 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:21,594 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 12:17:21,594 INFO L480 AbstractCegarLoop]: Abstraction has has 333 places, 295 transitions, 6550 flow [2021-03-25 12:17:21,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:21,594 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:21,594 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:21,594 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-03-25 12:17:21,594 INFO L428 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:21,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:21,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1797285436, now seen corresponding path program 2 times [2021-03-25 12:17:21,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:21,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940013031] [2021-03-25 12:17:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:21,600 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:21,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:21,604 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:21,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:21,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:21,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:21,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:21,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:21,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:21,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:21,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:21,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:21,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:21,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:21,665 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:21,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:21,679 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:21,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:21,695 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:21,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:21,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940013031] [2021-03-25 12:17:21,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:21,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:21,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448482281] [2021-03-25 12:17:21,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:21,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:21,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:21,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:21,698 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 109 [2021-03-25 12:17:21,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 295 transitions, 6550 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:21,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:21,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 109 [2021-03-25 12:17:21,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:22,118 INFO L129 PetriNetUnfolder]: 231/597 cut-off events. [2021-03-25 12:17:22,118 INFO L130 PetriNetUnfolder]: For 39140/39202 co-relation queries the response was YES. [2021-03-25 12:17:22,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8418 conditions, 597 events. 231/597 cut-off events. For 39140/39202 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3785 event pairs, 30 based on Foata normal form. 27/624 useless extension candidates. Maximal degree in co-relation 8273. Up to 441 conditions per place. [2021-03-25 12:17:22,154 INFO L132 encePairwiseOnDemand]: 94/109 looper letters, 243 selfloop transitions, 68 changer transitions 2/321 dead transitions. [2021-03-25 12:17:22,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 321 transitions, 7961 flow [2021-03-25 12:17:22,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:17:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:17:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 451 transitions. [2021-03-25 12:17:22,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27584097859327217 [2021-03-25 12:17:22,156 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 451 transitions. [2021-03-25 12:17:22,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 451 transitions. [2021-03-25 12:17:22,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:22,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 451 transitions. [2021-03-25 12:17:22,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.066666666666666) internal successors, (451), 15 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 109.0) internal successors, (1744), 16 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,157 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 109.0) internal successors, (1744), 16 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,157 INFO L185 Difference]: Start difference. First operand has 333 places, 295 transitions, 6550 flow. Second operand 15 states and 451 transitions. [2021-03-25 12:17:22,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 321 transitions, 7961 flow [2021-03-25 12:17:22,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 321 transitions, 7715 flow, removed 108 selfloop flow, removed 4 redundant places. [2021-03-25 12:17:22,336 INFO L241 Difference]: Finished difference. Result has 349 places, 312 transitions, 6917 flow [2021-03-25 12:17:22,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=6312, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6917, PETRI_PLACES=349, PETRI_TRANSITIONS=312} [2021-03-25 12:17:22,337 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 302 predicate places. [2021-03-25 12:17:22,337 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:22,337 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 349 places, 312 transitions, 6917 flow [2021-03-25 12:17:22,337 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 349 places, 312 transitions, 6917 flow [2021-03-25 12:17:22,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 347 places, 312 transitions, 6917 flow [2021-03-25 12:17:22,409 INFO L129 PetriNetUnfolder]: 211/580 cut-off events. [2021-03-25 12:17:22,409 INFO L130 PetriNetUnfolder]: For 37715/37859 co-relation queries the response was YES. [2021-03-25 12:17:22,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7707 conditions, 580 events. 211/580 cut-off events. For 37715/37859 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3897 event pairs, 23 based on Foata normal form. 10/586 useless extension candidates. Maximal degree in co-relation 7559. Up to 231 conditions per place. [2021-03-25 12:17:22,419 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-25 12:17:22,463 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:22,464 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:22,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 12:17:22,464 INFO L480 AbstractCegarLoop]: Abstraction has has 347 places, 312 transitions, 6922 flow [2021-03-25 12:17:22,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:22,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:22,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-03-25 12:17:22,464 INFO L428 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:22,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1323752974, now seen corresponding path program 3 times [2021-03-25 12:17:22,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:22,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467855557] [2021-03-25 12:17:22,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:22,470 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:22,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:22,474 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:22,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:22,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:22,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:22,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:22,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:22,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:22,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:22,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:22,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:22,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:22,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:22,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:22,549 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:22,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:22,564 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:22,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:22,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:22,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467855557] [2021-03-25 12:17:22,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:22,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:22,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302987887] [2021-03-25 12:17:22,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:22,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:22,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:22,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:22,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 110 [2021-03-25 12:17:22,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 312 transitions, 6922 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:22,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 110 [2021-03-25 12:17:22,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:22,981 INFO L129 PetriNetUnfolder]: 236/617 cut-off events. [2021-03-25 12:17:22,981 INFO L130 PetriNetUnfolder]: For 41564/41627 co-relation queries the response was YES. [2021-03-25 12:17:22,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8763 conditions, 617 events. 236/617 cut-off events. For 41564/41627 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3998 event pairs, 36 based on Foata normal form. 33/649 useless extension candidates. Maximal degree in co-relation 8613. Up to 489 conditions per place. [2021-03-25 12:17:22,989 INFO L132 encePairwiseOnDemand]: 96/110 looper letters, 277 selfloop transitions, 42 changer transitions 5/332 dead transitions. [2021-03-25 12:17:22,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 332 transitions, 8134 flow [2021-03-25 12:17:22,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:17:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:17:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 440 transitions. [2021-03-25 12:17:22,990 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26666666666666666 [2021-03-25 12:17:22,990 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 440 transitions. [2021-03-25 12:17:22,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 440 transitions. [2021-03-25 12:17:22,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:22,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 440 transitions. [2021-03-25 12:17:22,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.333333333333332) internal successors, (440), 15 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 110.0) internal successors, (1760), 16 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,992 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 110.0) internal successors, (1760), 16 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:22,992 INFO L185 Difference]: Start difference. First operand has 347 places, 312 transitions, 6922 flow. Second operand 15 states and 440 transitions. [2021-03-25 12:17:22,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 332 transitions, 8134 flow [2021-03-25 12:17:23,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 332 transitions, 7791 flow, removed 146 selfloop flow, removed 5 redundant places. [2021-03-25 12:17:23,188 INFO L241 Difference]: Finished difference. Result has 362 places, 323 transitions, 6945 flow [2021-03-25 12:17:23,188 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=6619, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6945, PETRI_PLACES=362, PETRI_TRANSITIONS=323} [2021-03-25 12:17:23,188 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 315 predicate places. [2021-03-25 12:17:23,188 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:23,188 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 323 transitions, 6945 flow [2021-03-25 12:17:23,188 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 323 transitions, 6945 flow [2021-03-25 12:17:23,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 358 places, 323 transitions, 6945 flow [2021-03-25 12:17:23,264 INFO L129 PetriNetUnfolder]: 221/594 cut-off events. [2021-03-25 12:17:23,264 INFO L130 PetriNetUnfolder]: For 38649/38695 co-relation queries the response was YES. [2021-03-25 12:17:23,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8061 conditions, 594 events. 221/594 cut-off events. For 38649/38695 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3948 event pairs, 22 based on Foata normal form. 4/593 useless extension candidates. Maximal degree in co-relation 7908. Up to 236 conditions per place. [2021-03-25 12:17:23,274 INFO L142 LiptonReduction]: Number of co-enabled transitions 482 [2021-03-25 12:17:23,360 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 12:17:23,360 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 12:17:23,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 12:17:23,361 INFO L480 AbstractCegarLoop]: Abstraction has has 358 places, 323 transitions, 6994 flow [2021-03-25 12:17:23,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:23,361 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:23,361 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:23,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-03-25 12:17:23,361 INFO L428 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:23,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:23,361 INFO L82 PathProgramCache]: Analyzing trace with hash 903342652, now seen corresponding path program 4 times [2021-03-25 12:17:23,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:23,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636066898] [2021-03-25 12:17:23,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:23,366 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:23,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:23,371 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:23,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:23,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:23,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:23,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:23,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:23,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:23,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:23,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:23,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:23,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:23,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:23,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:23,445 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:23,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:23,460 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:23,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:23,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636066898] [2021-03-25 12:17:23,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:23,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:23,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448556164] [2021-03-25 12:17:23,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:23,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:23,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:23,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:23,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 113 [2021-03-25 12:17:23,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 323 transitions, 6994 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:23,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:23,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 113 [2021-03-25 12:17:23,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:24,078 INFO L129 PetriNetUnfolder]: 247/659 cut-off events. [2021-03-25 12:17:24,078 INFO L130 PetriNetUnfolder]: For 46275/46329 co-relation queries the response was YES. [2021-03-25 12:17:24,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9303 conditions, 659 events. 247/659 cut-off events. For 46275/46329 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4433 event pairs, 37 based on Foata normal form. 44/703 useless extension candidates. Maximal degree in co-relation 9148. Up to 492 conditions per place. [2021-03-25 12:17:24,087 INFO L132 encePairwiseOnDemand]: 95/113 looper letters, 278 selfloop transitions, 57 changer transitions 9/352 dead transitions. [2021-03-25 12:17:24,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 352 transitions, 8788 flow [2021-03-25 12:17:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:17:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:17:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 479 transitions. [2021-03-25 12:17:24,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2649336283185841 [2021-03-25 12:17:24,088 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 479 transitions. [2021-03-25 12:17:24,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 479 transitions. [2021-03-25 12:17:24,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:24,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 479 transitions. [2021-03-25 12:17:24,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 29.9375) internal successors, (479), 16 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,090 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 113.0) internal successors, (1921), 17 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,090 INFO L185 Difference]: Start difference. First operand has 358 places, 323 transitions, 6994 flow. Second operand 16 states and 479 transitions. [2021-03-25 12:17:24,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 352 transitions, 8788 flow [2021-03-25 12:17:24,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 352 transitions, 8494 flow, removed 126 selfloop flow, removed 8 redundant places. [2021-03-25 12:17:24,314 INFO L241 Difference]: Finished difference. Result has 372 places, 338 transitions, 7392 flow [2021-03-25 12:17:24,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=6736, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7392, PETRI_PLACES=372, PETRI_TRANSITIONS=338} [2021-03-25 12:17:24,314 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 325 predicate places. [2021-03-25 12:17:24,314 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:24,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 338 transitions, 7392 flow [2021-03-25 12:17:24,314 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 338 transitions, 7392 flow [2021-03-25 12:17:24,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 366 places, 338 transitions, 7392 flow [2021-03-25 12:17:24,399 INFO L129 PetriNetUnfolder]: 226/627 cut-off events. [2021-03-25 12:17:24,399 INFO L130 PetriNetUnfolder]: For 43175/43227 co-relation queries the response was YES. [2021-03-25 12:17:24,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8339 conditions, 627 events. 226/627 cut-off events. For 43175/43227 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4439 event pairs, 25 based on Foata normal form. 4/627 useless extension candidates. Maximal degree in co-relation 8182. Up to 242 conditions per place. [2021-03-25 12:17:24,410 INFO L142 LiptonReduction]: Number of co-enabled transitions 534 [2021-03-25 12:17:24,509 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 12:17:24,509 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:17:24,509 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-03-25 12:17:24,510 INFO L480 AbstractCegarLoop]: Abstraction has has 366 places, 338 transitions, 7426 flow [2021-03-25 12:17:24,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,510 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:24,510 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:24,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-03-25 12:17:24,510 INFO L428 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:24,510 INFO L82 PathProgramCache]: Analyzing trace with hash -824394185, now seen corresponding path program 1 times [2021-03-25 12:17:24,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:24,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061942361] [2021-03-25 12:17:24,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:24,516 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:24,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:24,520 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:24,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:24,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:24,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:24,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:24,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:24,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:24,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:24,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:24,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:24,558 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:24,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:24,570 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:24,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:24,584 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:24,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:24,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061942361] [2021-03-25 12:17:24,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:24,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:24,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996134226] [2021-03-25 12:17:24,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:24,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:24,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:24,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:24,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 115 [2021-03-25 12:17:24,587 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 338 transitions, 7426 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:24,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 115 [2021-03-25 12:17:24,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:24,988 INFO L129 PetriNetUnfolder]: 245/654 cut-off events. [2021-03-25 12:17:24,988 INFO L130 PetriNetUnfolder]: For 46587/46651 co-relation queries the response was YES. [2021-03-25 12:17:24,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9208 conditions, 654 events. 245/654 cut-off events. For 46587/46651 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4420 event pairs, 27 based on Foata normal form. 44/698 useless extension candidates. Maximal degree in co-relation 9049. Up to 482 conditions per place. [2021-03-25 12:17:24,996 INFO L132 encePairwiseOnDemand]: 98/115 looper letters, 268 selfloop transitions, 67 changer transitions 5/348 dead transitions. [2021-03-25 12:17:24,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 348 transitions, 8366 flow [2021-03-25 12:17:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:17:24,997 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27391304347826084 [2021-03-25 12:17:24,997 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:17:24,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:17:24,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:24,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:17:24,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,998 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:24,998 INFO L185 Difference]: Start difference. First operand has 366 places, 338 transitions, 7426 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:17:24,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 348 transitions, 8366 flow [2021-03-25 12:17:25,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 348 transitions, 7898 flow, removed 223 selfloop flow, removed 6 redundant places. [2021-03-25 12:17:25,217 INFO L241 Difference]: Finished difference. Result has 373 places, 338 transitions, 7172 flow [2021-03-25 12:17:25,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=6968, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7172, PETRI_PLACES=373, PETRI_TRANSITIONS=338} [2021-03-25 12:17:25,217 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 326 predicate places. [2021-03-25 12:17:25,217 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:25,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 338 transitions, 7172 flow [2021-03-25 12:17:25,218 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 338 transitions, 7172 flow [2021-03-25 12:17:25,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 338 transitions, 7172 flow [2021-03-25 12:17:25,299 INFO L129 PetriNetUnfolder]: 215/594 cut-off events. [2021-03-25 12:17:25,299 INFO L130 PetriNetUnfolder]: For 42256/42437 co-relation queries the response was YES. [2021-03-25 12:17:25,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7815 conditions, 594 events. 215/594 cut-off events. For 42256/42437 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4156 event pairs, 21 based on Foata normal form. 12/601 useless extension candidates. Maximal degree in co-relation 7657. Up to 211 conditions per place. [2021-03-25 12:17:25,314 INFO L142 LiptonReduction]: Number of co-enabled transitions 538 [2021-03-25 12:17:25,332 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:25,333 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:25,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116 [2021-03-25 12:17:25,333 INFO L480 AbstractCegarLoop]: Abstraction has has 369 places, 338 transitions, 7172 flow [2021-03-25 12:17:25,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:25,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:25,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:25,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-03-25 12:17:25,333 INFO L428 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:25,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:25,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1889804883, now seen corresponding path program 1 times [2021-03-25 12:17:25,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:25,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270862062] [2021-03-25 12:17:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:25,340 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:25,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:25,345 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:25,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:25,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:25,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:25,360 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:17:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:17:25,384 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:17:25,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:17:25,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:25,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:25,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:25,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:25,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:25,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:25,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270862062] [2021-03-25 12:17:25,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:25,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:25,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886059737] [2021-03-25 12:17:25,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:25,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:25,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:25,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:25,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 115 [2021-03-25 12:17:25,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 338 transitions, 7172 flow. Second operand has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:25,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:25,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 115 [2021-03-25 12:17:25,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:25,815 INFO L129 PetriNetUnfolder]: 250/676 cut-off events. [2021-03-25 12:17:25,815 INFO L130 PetriNetUnfolder]: For 49483/49554 co-relation queries the response was YES. [2021-03-25 12:17:25,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9522 conditions, 676 events. 250/676 cut-off events. For 49483/49554 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4642 event pairs, 31 based on Foata normal form. 52/728 useless extension candidates. Maximal degree in co-relation 9362. Up to 479 conditions per place. [2021-03-25 12:17:25,825 INFO L132 encePairwiseOnDemand]: 97/115 looper letters, 270 selfloop transitions, 77 changer transitions 8/363 dead transitions. [2021-03-25 12:17:25,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 363 transitions, 8899 flow [2021-03-25 12:17:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:25,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2021-03-25 12:17:25,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2843478260869565 [2021-03-25 12:17:25,826 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 327 transitions. [2021-03-25 12:17:25,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 327 transitions. [2021-03-25 12:17:25,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:25,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 327 transitions. [2021-03-25 12:17:25,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:25,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:25,827 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:25,827 INFO L185 Difference]: Start difference. First operand has 369 places, 338 transitions, 7172 flow. Second operand 10 states and 327 transitions. [2021-03-25 12:17:25,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 363 transitions, 8899 flow [2021-03-25 12:17:26,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 363 transitions, 8714 flow, removed 33 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:26,056 INFO L241 Difference]: Finished difference. Result has 373 places, 349 transitions, 7904 flow [2021-03-25 12:17:26,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=7011, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7904, PETRI_PLACES=373, PETRI_TRANSITIONS=349} [2021-03-25 12:17:26,056 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 326 predicate places. [2021-03-25 12:17:26,056 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:26,056 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 349 transitions, 7904 flow [2021-03-25 12:17:26,056 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 349 transitions, 7904 flow [2021-03-25 12:17:26,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 349 transitions, 7904 flow [2021-03-25 12:17:26,149 INFO L129 PetriNetUnfolder]: 227/641 cut-off events. [2021-03-25 12:17:26,149 INFO L130 PetriNetUnfolder]: For 44333/44351 co-relation queries the response was YES. [2021-03-25 12:17:26,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8688 conditions, 641 events. 227/641 cut-off events. For 44333/44351 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4556 event pairs, 21 based on Foata normal form. 4/644 useless extension candidates. Maximal degree in co-relation 8498. Up to 229 conditions per place. [2021-03-25 12:17:26,163 INFO L142 LiptonReduction]: Number of co-enabled transitions 578 [2021-03-25 12:17:26,217 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:17:26,217 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:26,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-25 12:17:26,217 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 349 transitions, 7983 flow [2021-03-25 12:17:26,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:26,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:26,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:26,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-03-25 12:17:26,218 INFO L428 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:26,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:26,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1178491627, now seen corresponding path program 2 times [2021-03-25 12:17:26,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:26,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036979748] [2021-03-25 12:17:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:26,232 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:26,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:26,237 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:26,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:26,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:26,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:26,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:26,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:26,263 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:17:26,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:17:26,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:26,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:26,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:26,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:26,308 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:26,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:26,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036979748] [2021-03-25 12:17:26,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:26,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:26,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672953123] [2021-03-25 12:17:26,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:26,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:26,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:26,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:26,312 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:26,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 349 transitions, 7983 flow. Second operand has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:26,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:26,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:26,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:26,667 INFO L129 PetriNetUnfolder]: 247/679 cut-off events. [2021-03-25 12:17:26,667 INFO L130 PetriNetUnfolder]: For 51957/52004 co-relation queries the response was YES. [2021-03-25 12:17:26,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9644 conditions, 679 events. 247/679 cut-off events. For 51957/52004 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4749 event pairs, 31 based on Foata normal form. 37/716 useless extension candidates. Maximal degree in co-relation 9462. Up to 530 conditions per place. [2021-03-25 12:17:26,677 INFO L132 encePairwiseOnDemand]: 100/116 looper letters, 304 selfloop transitions, 42 changer transitions 4/358 dead transitions. [2021-03-25 12:17:26,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 358 transitions, 8898 flow [2021-03-25 12:17:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:26,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:17:26,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2689655172413793 [2021-03-25 12:17:26,679 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:17:26,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:17:26,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:26,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:17:26,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:26,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:26,680 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:26,680 INFO L185 Difference]: Start difference. First operand has 373 places, 349 transitions, 7983 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:17:26,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 358 transitions, 8898 flow [2021-03-25 12:17:26,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 358 transitions, 8231 flow, removed 293 selfloop flow, removed 7 redundant places. [2021-03-25 12:17:26,953 INFO L241 Difference]: Finished difference. Result has 379 places, 350 transitions, 7443 flow [2021-03-25 12:17:26,953 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=7318, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7443, PETRI_PLACES=379, PETRI_TRANSITIONS=350} [2021-03-25 12:17:26,953 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 332 predicate places. [2021-03-25 12:17:26,953 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:26,953 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 379 places, 350 transitions, 7443 flow [2021-03-25 12:17:26,953 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 379 places, 350 transitions, 7443 flow [2021-03-25 12:17:26,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 377 places, 350 transitions, 7443 flow [2021-03-25 12:17:27,040 INFO L129 PetriNetUnfolder]: 221/632 cut-off events. [2021-03-25 12:17:27,040 INFO L130 PetriNetUnfolder]: For 41351/41403 co-relation queries the response was YES. [2021-03-25 12:17:27,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8175 conditions, 632 events. 221/632 cut-off events. For 41351/41403 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4518 event pairs, 23 based on Foata normal form. 13/645 useless extension candidates. Maximal degree in co-relation 8013. Up to 214 conditions per place. [2021-03-25 12:17:27,052 INFO L142 LiptonReduction]: Number of co-enabled transitions 582 [2021-03-25 12:17:27,068 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:27,068 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:27,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-25 12:17:27,068 INFO L480 AbstractCegarLoop]: Abstraction has has 377 places, 350 transitions, 7443 flow [2021-03-25 12:17:27,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:27,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:27,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:27,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-03-25 12:17:27,069 INFO L428 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:27,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1380693648, now seen corresponding path program 1 times [2021-03-25 12:17:27,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:27,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986208051] [2021-03-25 12:17:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:27,078 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:27,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:27,083 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:27,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:27,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:27,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:27,110 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:17:27,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:17:27,115 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:17:27,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:17:27,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:27,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:27,152 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:27,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:27,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986208051] [2021-03-25 12:17:27,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:27,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:27,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462098603] [2021-03-25 12:17:27,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:27,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:27,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:27,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:27,155 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:27,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 350 transitions, 7443 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:27,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:27,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:27,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:27,487 INFO L129 PetriNetUnfolder]: 246/687 cut-off events. [2021-03-25 12:17:27,488 INFO L130 PetriNetUnfolder]: For 45459/45523 co-relation queries the response was YES. [2021-03-25 12:17:27,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9256 conditions, 687 events. 246/687 cut-off events. For 45459/45523 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4854 event pairs, 22 based on Foata normal form. 44/731 useless extension candidates. Maximal degree in co-relation 9092. Up to 489 conditions per place. [2021-03-25 12:17:27,497 INFO L132 encePairwiseOnDemand]: 99/116 looper letters, 281 selfloop transitions, 68 changer transitions 5/362 dead transitions. [2021-03-25 12:17:27,497 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 362 transitions, 8424 flow [2021-03-25 12:17:27,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:17:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:17:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2021-03-25 12:17:27,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28987068965517243 [2021-03-25 12:17:27,498 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 269 transitions. [2021-03-25 12:17:27,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 269 transitions. [2021-03-25 12:17:27,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:27,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 269 transitions. [2021-03-25 12:17:27,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.625) internal successors, (269), 8 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:27,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:27,499 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 116.0) internal successors, (1044), 9 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:27,499 INFO L185 Difference]: Start difference. First operand has 377 places, 350 transitions, 7443 flow. Second operand 8 states and 269 transitions. [2021-03-25 12:17:27,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 362 transitions, 8424 flow [2021-03-25 12:17:27,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 362 transitions, 8329 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:27,769 INFO L241 Difference]: Finished difference. Result has 378 places, 351 transitions, 7514 flow [2021-03-25 12:17:27,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=7350, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7514, PETRI_PLACES=378, PETRI_TRANSITIONS=351} [2021-03-25 12:17:27,769 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 331 predicate places. [2021-03-25 12:17:27,769 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:27,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 378 places, 351 transitions, 7514 flow [2021-03-25 12:17:27,769 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 378 places, 351 transitions, 7514 flow [2021-03-25 12:17:27,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 377 places, 351 transitions, 7514 flow [2021-03-25 12:17:27,855 INFO L129 PetriNetUnfolder]: 221/644 cut-off events. [2021-03-25 12:17:27,855 INFO L130 PetriNetUnfolder]: For 40165/40232 co-relation queries the response was YES. [2021-03-25 12:17:27,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8322 conditions, 644 events. 221/644 cut-off events. For 40165/40232 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4708 event pairs, 24 based on Foata normal form. 7/651 useless extension candidates. Maximal degree in co-relation 8160. Up to 216 conditions per place. [2021-03-25 12:17:27,866 INFO L142 LiptonReduction]: Number of co-enabled transitions 584 [2021-03-25 12:17:27,881 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:27,881 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:27,881 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-25 12:17:27,881 INFO L480 AbstractCegarLoop]: Abstraction has has 377 places, 351 transitions, 7514 flow [2021-03-25 12:17:27,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:27,881 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:27,881 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:27,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-03-25 12:17:27,881 INFO L428 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:27,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:27,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1177785312, now seen corresponding path program 1 times [2021-03-25 12:17:27,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:27,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070399588] [2021-03-25 12:17:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:27,892 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:27,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:27,897 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:27,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:27,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:27,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:27,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:27,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:27,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:27,964 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:27,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:27,981 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:27,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:28,001 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:28,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:28,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070399588] [2021-03-25 12:17:28,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:28,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:28,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718940161] [2021-03-25 12:17:28,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:28,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:28,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:28,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:28,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:28,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 351 transitions, 7514 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:28,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:28,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:28,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:28,383 INFO L129 PetriNetUnfolder]: 245/682 cut-off events. [2021-03-25 12:17:28,383 INFO L130 PetriNetUnfolder]: For 45345/45409 co-relation queries the response was YES. [2021-03-25 12:17:28,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9284 conditions, 682 events. 245/682 cut-off events. For 45345/45409 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4827 event pairs, 34 based on Foata normal form. 37/718 useless extension candidates. Maximal degree in co-relation 9120. Up to 534 conditions per place. [2021-03-25 12:17:28,393 INFO L132 encePairwiseOnDemand]: 100/116 looper letters, 307 selfloop transitions, 37 changer transitions 5/357 dead transitions. [2021-03-25 12:17:28,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 357 transitions, 8390 flow [2021-03-25 12:17:28,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:28,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 335 transitions. [2021-03-25 12:17:28,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26253918495297807 [2021-03-25 12:17:28,394 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 335 transitions. [2021-03-25 12:17:28,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 335 transitions. [2021-03-25 12:17:28,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:28,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 335 transitions. [2021-03-25 12:17:28,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.454545454545453) internal successors, (335), 11 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:28,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 116.0) internal successors, (1392), 12 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:28,395 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 116.0) internal successors, (1392), 12 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:28,395 INFO L185 Difference]: Start difference. First operand has 377 places, 351 transitions, 7514 flow. Second operand 11 states and 335 transitions. [2021-03-25 12:17:28,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 357 transitions, 8390 flow [2021-03-25 12:17:28,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 357 transitions, 8220 flow, removed 16 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:28,629 INFO L241 Difference]: Finished difference. Result has 380 places, 348 transitions, 7408 flow [2021-03-25 12:17:28,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=7346, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7408, PETRI_PLACES=380, PETRI_TRANSITIONS=348} [2021-03-25 12:17:28,629 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 333 predicate places. [2021-03-25 12:17:28,629 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:28,629 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 348 transitions, 7408 flow [2021-03-25 12:17:28,629 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 348 transitions, 7408 flow [2021-03-25 12:17:28,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 374 places, 348 transitions, 7408 flow [2021-03-25 12:17:28,712 INFO L129 PetriNetUnfolder]: 212/621 cut-off events. [2021-03-25 12:17:28,712 INFO L130 PetriNetUnfolder]: For 40798/40849 co-relation queries the response was YES. [2021-03-25 12:17:28,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 621 events. 212/621 cut-off events. For 40798/40849 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4511 event pairs, 27 based on Foata normal form. 16/636 useless extension candidates. Maximal degree in co-relation 7781. Up to 207 conditions per place. [2021-03-25 12:17:28,723 INFO L142 LiptonReduction]: Number of co-enabled transitions 572 [2021-03-25 12:17:28,737 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:28,737 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:28,737 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-03-25 12:17:28,737 INFO L480 AbstractCegarLoop]: Abstraction has has 374 places, 348 transitions, 7408 flow [2021-03-25 12:17:28,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:28,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:28,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:28,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-03-25 12:17:28,738 INFO L428 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:28,738 INFO L82 PathProgramCache]: Analyzing trace with hash 116933310, now seen corresponding path program 1 times [2021-03-25 12:17:28,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:28,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918825203] [2021-03-25 12:17:28,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:28,743 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:28,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:28,748 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:28,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:28,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:28,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:28,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:28,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:28,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:28,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:28,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:28,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:28,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:28,797 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:28,800 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:28,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:28,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918825203] [2021-03-25 12:17:28,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:28,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:28,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254209323] [2021-03-25 12:17:28,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:28,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:28,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:28,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:28,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:28,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 348 transitions, 7408 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:28,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:28,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:28,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:29,159 INFO L129 PetriNetUnfolder]: 256/708 cut-off events. [2021-03-25 12:17:29,159 INFO L130 PetriNetUnfolder]: For 50037/50101 co-relation queries the response was YES. [2021-03-25 12:17:29,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9808 conditions, 708 events. 256/708 cut-off events. For 50037/50101 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5050 event pairs, 34 based on Foata normal form. 37/744 useless extension candidates. Maximal degree in co-relation 9646. Up to 544 conditions per place. [2021-03-25 12:17:29,169 INFO L132 encePairwiseOnDemand]: 102/116 looper letters, 315 selfloop transitions, 45 changer transitions 3/371 dead transitions. [2021-03-25 12:17:29,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 371 transitions, 9092 flow [2021-03-25 12:17:29,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:17:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:17:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 289 transitions. [2021-03-25 12:17:29,171 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2768199233716475 [2021-03-25 12:17:29,171 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 289 transitions. [2021-03-25 12:17:29,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 289 transitions. [2021-03-25 12:17:29,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:29,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 289 transitions. [2021-03-25 12:17:29,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.111111111111114) internal successors, (289), 9 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:29,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:29,171 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:29,171 INFO L185 Difference]: Start difference. First operand has 374 places, 348 transitions, 7408 flow. Second operand 9 states and 289 transitions. [2021-03-25 12:17:29,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 371 transitions, 9092 flow [2021-03-25 12:17:29,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 371 transitions, 8992 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-25 12:17:29,436 INFO L241 Difference]: Finished difference. Result has 378 places, 362 transitions, 8076 flow [2021-03-25 12:17:29,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=7322, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8076, PETRI_PLACES=378, PETRI_TRANSITIONS=362} [2021-03-25 12:17:29,437 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 331 predicate places. [2021-03-25 12:17:29,437 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:29,437 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 378 places, 362 transitions, 8076 flow [2021-03-25 12:17:29,437 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 378 places, 362 transitions, 8076 flow [2021-03-25 12:17:29,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 377 places, 362 transitions, 8076 flow [2021-03-25 12:17:29,530 INFO L129 PetriNetUnfolder]: 227/658 cut-off events. [2021-03-25 12:17:29,531 INFO L130 PetriNetUnfolder]: For 45881/45937 co-relation queries the response was YES. [2021-03-25 12:17:29,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8746 conditions, 658 events. 227/658 cut-off events. For 45881/45937 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4860 event pairs, 21 based on Foata normal form. 17/673 useless extension candidates. Maximal degree in co-relation 8553. Up to 226 conditions per place. [2021-03-25 12:17:29,544 INFO L142 LiptonReduction]: Number of co-enabled transitions 600 [2021-03-25 12:17:29,560 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:29,560 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:29,560 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123 [2021-03-25 12:17:29,560 INFO L480 AbstractCegarLoop]: Abstraction has has 377 places, 362 transitions, 8076 flow [2021-03-25 12:17:29,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:29,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:29,560 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:29,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-03-25 12:17:29,560 INFO L428 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:29,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1338351612, now seen corresponding path program 1 times [2021-03-25 12:17:29,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:29,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468983336] [2021-03-25 12:17:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:29,566 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:29,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:29,571 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:29,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:29,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:29,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:29,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:29,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:29,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:29,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:29,607 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:17:29,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:17:29,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:29,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:29,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:29,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:29,635 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:29,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:29,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468983336] [2021-03-25 12:17:29,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:29,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:29,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133641314] [2021-03-25 12:17:29,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:29,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:29,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:29,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:29,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:29,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 362 transitions, 8076 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:29,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:29,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:29,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:30,013 INFO L129 PetriNetUnfolder]: 254/707 cut-off events. [2021-03-25 12:17:30,013 INFO L130 PetriNetUnfolder]: For 51778/51842 co-relation queries the response was YES. [2021-03-25 12:17:30,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9879 conditions, 707 events. 254/707 cut-off events. For 51778/51842 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5064 event pairs, 26 based on Foata normal form. 36/743 useless extension candidates. Maximal degree in co-relation 9694. Up to 510 conditions per place. [2021-03-25 12:17:30,023 INFO L132 encePairwiseOnDemand]: 100/116 looper letters, 300 selfloop transitions, 63 changer transitions 4/375 dead transitions. [2021-03-25 12:17:30,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 375 transitions, 9199 flow [2021-03-25 12:17:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:30,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 319 transitions. [2021-03-25 12:17:30,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.275 [2021-03-25 12:17:30,025 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 319 transitions. [2021-03-25 12:17:30,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 319 transitions. [2021-03-25 12:17:30,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:30,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 319 transitions. [2021-03-25 12:17:30,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.9) internal successors, (319), 10 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,026 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,026 INFO L185 Difference]: Start difference. First operand has 377 places, 362 transitions, 8076 flow. Second operand 10 states and 319 transitions. [2021-03-25 12:17:30,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 375 transitions, 9199 flow [2021-03-25 12:17:30,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 375 transitions, 8842 flow, removed 171 selfloop flow, removed 1 redundant places. [2021-03-25 12:17:30,283 INFO L241 Difference]: Finished difference. Result has 389 places, 364 transitions, 7959 flow [2021-03-25 12:17:30,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=7719, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7959, PETRI_PLACES=389, PETRI_TRANSITIONS=364} [2021-03-25 12:17:30,283 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 342 predicate places. [2021-03-25 12:17:30,283 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:30,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 364 transitions, 7959 flow [2021-03-25 12:17:30,283 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 364 transitions, 7959 flow [2021-03-25 12:17:30,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 388 places, 364 transitions, 7959 flow [2021-03-25 12:17:30,393 INFO L129 PetriNetUnfolder]: 228/656 cut-off events. [2021-03-25 12:17:30,393 INFO L130 PetriNetUnfolder]: For 46298/46488 co-relation queries the response was YES. [2021-03-25 12:17:30,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8656 conditions, 656 events. 228/656 cut-off events. For 46298/46488 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 4870 event pairs, 30 based on Foata normal form. 17/668 useless extension candidates. Maximal degree in co-relation 8491. Up to 227 conditions per place. [2021-03-25 12:17:30,406 INFO L142 LiptonReduction]: Number of co-enabled transitions 608 [2021-03-25 12:17:30,421 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:30,421 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:30,422 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-03-25 12:17:30,422 INFO L480 AbstractCegarLoop]: Abstraction has has 388 places, 364 transitions, 7959 flow [2021-03-25 12:17:30,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:30,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:30,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-03-25 12:17:30,422 INFO L428 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:30,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:30,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1878686174, now seen corresponding path program 2 times [2021-03-25 12:17:30,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:30,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048925280] [2021-03-25 12:17:30,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:30,429 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:30,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:30,434 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:30,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:30,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:30,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:30,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:30,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:30,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:30,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:30,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:30,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:30,471 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:30,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:30,483 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:30,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:30,497 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:30,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:30,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048925280] [2021-03-25 12:17:30,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:30,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:30,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187195732] [2021-03-25 12:17:30,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:30,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:30,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:30,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:30,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:30,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 364 transitions, 7959 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:30,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:30,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:30,891 INFO L129 PetriNetUnfolder]: 261/726 cut-off events. [2021-03-25 12:17:30,891 INFO L130 PetriNetUnfolder]: For 54685/54749 co-relation queries the response was YES. [2021-03-25 12:17:30,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10275 conditions, 726 events. 261/726 cut-off events. For 54685/54749 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 5232 event pairs, 27 based on Foata normal form. 44/770 useless extension candidates. Maximal degree in co-relation 10108. Up to 505 conditions per place. [2021-03-25 12:17:30,902 INFO L132 encePairwiseOnDemand]: 100/116 looper letters, 290 selfloop transitions, 81 changer transitions 3/382 dead transitions. [2021-03-25 12:17:30,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 382 transitions, 9658 flow [2021-03-25 12:17:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:17:30,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2767241379310345 [2021-03-25 12:17:30,903 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:17:30,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:17:30,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:30,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:17:30,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,904 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:30,904 INFO L185 Difference]: Start difference. First operand has 388 places, 364 transitions, 7959 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:17:30,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 382 transitions, 9658 flow [2021-03-25 12:17:31,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 382 transitions, 9394 flow, removed 54 selfloop flow, removed 11 redundant places. [2021-03-25 12:17:31,160 INFO L241 Difference]: Finished difference. Result has 389 places, 372 transitions, 8422 flow [2021-03-25 12:17:31,160 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=7713, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8422, PETRI_PLACES=389, PETRI_TRANSITIONS=372} [2021-03-25 12:17:31,160 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 342 predicate places. [2021-03-25 12:17:31,160 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:31,160 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 372 transitions, 8422 flow [2021-03-25 12:17:31,160 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 372 transitions, 8422 flow [2021-03-25 12:17:31,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 372 transitions, 8422 flow [2021-03-25 12:17:31,257 INFO L129 PetriNetUnfolder]: 232/682 cut-off events. [2021-03-25 12:17:31,257 INFO L130 PetriNetUnfolder]: For 52276/52373 co-relation queries the response was YES. [2021-03-25 12:17:31,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9165 conditions, 682 events. 232/682 cut-off events. For 52276/52373 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5159 event pairs, 22 based on Foata normal form. 19/697 useless extension candidates. Maximal degree in co-relation 9001. Up to 235 conditions per place. [2021-03-25 12:17:31,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-25 12:17:31,285 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:31,286 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:31,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 126 [2021-03-25 12:17:31,286 INFO L480 AbstractCegarLoop]: Abstraction has has 387 places, 372 transitions, 8422 flow [2021-03-25 12:17:31,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:31,286 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:31,286 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:31,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-03-25 12:17:31,286 INFO L428 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:31,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash -742535866, now seen corresponding path program 3 times [2021-03-25 12:17:31,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:31,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142227012] [2021-03-25 12:17:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:31,292 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:31,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:31,296 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:31,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:31,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:31,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:31,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:31,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:31,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:31,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:31,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:31,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:31,344 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:31,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:31,358 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:31,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:31,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142227012] [2021-03-25 12:17:31,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:31,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:31,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414061461] [2021-03-25 12:17:31,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:31,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:31,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:31,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:31,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:31,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 372 transitions, 8422 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:31,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:31,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:31,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:31,725 INFO L129 PetriNetUnfolder]: 259/727 cut-off events. [2021-03-25 12:17:31,725 INFO L130 PetriNetUnfolder]: For 54744/54791 co-relation queries the response was YES. [2021-03-25 12:17:31,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10262 conditions, 727 events. 259/727 cut-off events. For 54744/54791 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 5244 event pairs, 42 based on Foata normal form. 37/764 useless extension candidates. Maximal degree in co-relation 10096. Up to 557 conditions per place. [2021-03-25 12:17:31,736 INFO L132 encePairwiseOnDemand]: 102/116 looper letters, 326 selfloop transitions, 39 changer transitions 6/379 dead transitions. [2021-03-25 12:17:31,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 379 transitions, 9437 flow [2021-03-25 12:17:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:17:31,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26982758620689656 [2021-03-25 12:17:31,737 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:17:31,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:17:31,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:31,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:17:31,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:31,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:31,738 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:31,738 INFO L185 Difference]: Start difference. First operand has 387 places, 372 transitions, 8422 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:17:31,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 379 transitions, 9437 flow [2021-03-25 12:17:31,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 379 transitions, 9211 flow, removed 107 selfloop flow, removed 3 redundant places. [2021-03-25 12:17:31,995 INFO L241 Difference]: Finished difference. Result has 395 places, 367 transitions, 8246 flow [2021-03-25 12:17:31,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8218, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8246, PETRI_PLACES=395, PETRI_TRANSITIONS=367} [2021-03-25 12:17:31,995 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 348 predicate places. [2021-03-25 12:17:31,995 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:31,995 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 367 transitions, 8246 flow [2021-03-25 12:17:31,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 367 transitions, 8246 flow [2021-03-25 12:17:31,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 391 places, 367 transitions, 8246 flow [2021-03-25 12:17:32,087 INFO L129 PetriNetUnfolder]: 227/664 cut-off events. [2021-03-25 12:17:32,087 INFO L130 PetriNetUnfolder]: For 49956/50064 co-relation queries the response was YES. [2021-03-25 12:17:32,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8830 conditions, 664 events. 227/664 cut-off events. For 49956/50064 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4969 event pairs, 26 based on Foata normal form. 17/676 useless extension candidates. Maximal degree in co-relation 8665. Up to 232 conditions per place. [2021-03-25 12:17:32,099 INFO L142 LiptonReduction]: Number of co-enabled transitions 604 [2021-03-25 12:17:32,114 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:32,114 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:32,114 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 119 [2021-03-25 12:17:32,114 INFO L480 AbstractCegarLoop]: Abstraction has has 391 places, 367 transitions, 8246 flow [2021-03-25 12:17:32,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:32,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:32,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:32,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-03-25 12:17:32,114 INFO L428 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:32,115 INFO L82 PathProgramCache]: Analyzing trace with hash -221143684, now seen corresponding path program 4 times [2021-03-25 12:17:32,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:32,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427038408] [2021-03-25 12:17:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:32,120 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:32,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:32,124 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:32,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:32,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:32,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:32,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:32,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:32,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:32,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:32,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:32,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:32,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:32,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:32,185 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:32,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:32,198 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:32,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:32,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427038408] [2021-03-25 12:17:32,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:32,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:32,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082738162] [2021-03-25 12:17:32,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:32,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:32,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:32,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:32,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:32,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 367 transitions, 8246 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:32,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:32,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:32,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:32,601 INFO L129 PetriNetUnfolder]: 279/756 cut-off events. [2021-03-25 12:17:32,601 INFO L130 PetriNetUnfolder]: For 61125/61189 co-relation queries the response was YES. [2021-03-25 12:17:32,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11135 conditions, 756 events. 279/756 cut-off events. For 61125/61189 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5464 event pairs, 32 based on Foata normal form. 30/784 useless extension candidates. Maximal degree in co-relation 10968. Up to 549 conditions per place. [2021-03-25 12:17:32,612 INFO L132 encePairwiseOnDemand]: 101/116 looper letters, 279 selfloop transitions, 103 changer transitions 6/396 dead transitions. [2021-03-25 12:17:32,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 396 transitions, 10460 flow [2021-03-25 12:17:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:32,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:17:32,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2767241379310345 [2021-03-25 12:17:32,613 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:17:32,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:17:32,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:32,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:17:32,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:32,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:32,614 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:32,614 INFO L185 Difference]: Start difference. First operand has 391 places, 367 transitions, 8246 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:17:32,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 396 transitions, 10460 flow [2021-03-25 12:17:32,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 396 transitions, 10338 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-03-25 12:17:32,909 INFO L241 Difference]: Finished difference. Result has 393 places, 385 transitions, 9407 flow [2021-03-25 12:17:32,909 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8128, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9407, PETRI_PLACES=393, PETRI_TRANSITIONS=385} [2021-03-25 12:17:32,909 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 346 predicate places. [2021-03-25 12:17:32,909 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:32,909 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 385 transitions, 9407 flow [2021-03-25 12:17:32,909 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 385 transitions, 9407 flow [2021-03-25 12:17:32,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 392 places, 385 transitions, 9407 flow [2021-03-25 12:17:33,023 INFO L129 PetriNetUnfolder]: 249/696 cut-off events. [2021-03-25 12:17:33,023 INFO L130 PetriNetUnfolder]: For 63034/63212 co-relation queries the response was YES. [2021-03-25 12:17:33,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10006 conditions, 696 events. 249/696 cut-off events. For 63034/63212 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5124 event pairs, 20 based on Foata normal form. 19/708 useless extension candidates. Maximal degree in co-relation 9809. Up to 261 conditions per place. [2021-03-25 12:17:33,035 INFO L142 LiptonReduction]: Number of co-enabled transitions 610 [2021-03-25 12:17:33,052 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:33,052 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:33,052 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-25 12:17:33,052 INFO L480 AbstractCegarLoop]: Abstraction has has 392 places, 385 transitions, 9407 flow [2021-03-25 12:17:33,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,053 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:33,053 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:33,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-03-25 12:17:33,053 INFO L428 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:33,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1113913036, now seen corresponding path program 5 times [2021-03-25 12:17:33,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:33,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571161622] [2021-03-25 12:17:33,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:33,059 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:33,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:33,063 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:33,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:33,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:33,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:33,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,116 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:33,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:33,120 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:33,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:33,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571161622] [2021-03-25 12:17:33,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:33,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:33,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8857341] [2021-03-25 12:17:33,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:33,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:33,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:33,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:33,123 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:33,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 385 transitions, 9407 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:33,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:33,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:33,457 INFO L129 PetriNetUnfolder]: 275/745 cut-off events. [2021-03-25 12:17:33,457 INFO L130 PetriNetUnfolder]: For 62471/62535 co-relation queries the response was YES. [2021-03-25 12:17:33,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11218 conditions, 745 events. 275/745 cut-off events. For 62471/62535 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 5306 event pairs, 34 based on Foata normal form. 30/773 useless extension candidates. Maximal degree in co-relation 11029. Up to 595 conditions per place. [2021-03-25 12:17:33,467 INFO L132 encePairwiseOnDemand]: 102/116 looper letters, 347 selfloop transitions, 34 changer transitions 2/391 dead transitions. [2021-03-25 12:17:33,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 391 transitions, 10436 flow [2021-03-25 12:17:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:17:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:17:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 280 transitions. [2021-03-25 12:17:33,468 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2681992337164751 [2021-03-25 12:17:33,468 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 280 transitions. [2021-03-25 12:17:33,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 280 transitions. [2021-03-25 12:17:33,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:33,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 280 transitions. [2021-03-25 12:17:33,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.11111111111111) internal successors, (280), 9 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,469 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,469 INFO L185 Difference]: Start difference. First operand has 392 places, 385 transitions, 9407 flow. Second operand 9 states and 280 transitions. [2021-03-25 12:17:33,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 391 transitions, 10436 flow [2021-03-25 12:17:33,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 391 transitions, 9748 flow, removed 314 selfloop flow, removed 2 redundant places. [2021-03-25 12:17:33,750 INFO L241 Difference]: Finished difference. Result has 401 places, 385 transitions, 8891 flow [2021-03-25 12:17:33,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8799, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8891, PETRI_PLACES=401, PETRI_TRANSITIONS=385} [2021-03-25 12:17:33,750 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 354 predicate places. [2021-03-25 12:17:33,750 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:33,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 385 transitions, 8891 flow [2021-03-25 12:17:33,750 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 385 transitions, 8891 flow [2021-03-25 12:17:33,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 400 places, 385 transitions, 8891 flow [2021-03-25 12:17:33,848 INFO L129 PetriNetUnfolder]: 243/683 cut-off events. [2021-03-25 12:17:33,848 INFO L130 PetriNetUnfolder]: For 57656/57752 co-relation queries the response was YES. [2021-03-25 12:17:33,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9523 conditions, 683 events. 243/683 cut-off events. For 57656/57752 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5026 event pairs, 19 based on Foata normal form. 21/696 useless extension candidates. Maximal degree in co-relation 9323. Up to 246 conditions per place. [2021-03-25 12:17:33,860 INFO L142 LiptonReduction]: Number of co-enabled transitions 606 [2021-03-25 12:17:33,877 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:33,877 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:33,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 12:17:33,877 INFO L480 AbstractCegarLoop]: Abstraction has has 400 places, 385 transitions, 8891 flow [2021-03-25 12:17:33,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:33,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:33,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-03-25 12:17:33,878 INFO L428 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:33,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1094884364, now seen corresponding path program 6 times [2021-03-25 12:17:33,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:33,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099708474] [2021-03-25 12:17:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:33,883 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:33,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:33,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:33,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:33,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:33,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:33,926 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:33,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:33,938 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:33,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:33,951 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:33,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:33,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099708474] [2021-03-25 12:17:33,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:33,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:33,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290552585] [2021-03-25 12:17:33,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:33,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:33,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:33,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:33,955 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:33,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 385 transitions, 8891 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:33,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:33,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:33,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:34,324 INFO L129 PetriNetUnfolder]: 274/747 cut-off events. [2021-03-25 12:17:34,325 INFO L130 PetriNetUnfolder]: For 57309/57373 co-relation queries the response was YES. [2021-03-25 12:17:34,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10841 conditions, 747 events. 274/747 cut-off events. For 57309/57373 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5342 event pairs, 38 based on Foata normal form. 30/775 useless extension candidates. Maximal degree in co-relation 10649. Up to 588 conditions per place. [2021-03-25 12:17:34,336 INFO L132 encePairwiseOnDemand]: 101/116 looper letters, 337 selfloop transitions, 43 changer transitions 3/391 dead transitions. [2021-03-25 12:17:34,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 391 transitions, 9869 flow [2021-03-25 12:17:34,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:34,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:17:34,337 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2663793103448276 [2021-03-25 12:17:34,337 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:17:34,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:17:34,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:34,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:17:34,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:34,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:34,338 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:34,338 INFO L185 Difference]: Start difference. First operand has 400 places, 385 transitions, 8891 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:17:34,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 391 transitions, 9869 flow [2021-03-25 12:17:34,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 391 transitions, 9724 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:34,610 INFO L241 Difference]: Finished difference. Result has 402 places, 385 transitions, 8894 flow [2021-03-25 12:17:34,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8749, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8894, PETRI_PLACES=402, PETRI_TRANSITIONS=385} [2021-03-25 12:17:34,610 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 355 predicate places. [2021-03-25 12:17:34,610 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:34,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 402 places, 385 transitions, 8894 flow [2021-03-25 12:17:34,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 402 places, 385 transitions, 8894 flow [2021-03-25 12:17:34,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 385 transitions, 8894 flow [2021-03-25 12:17:34,706 INFO L129 PetriNetUnfolder]: 239/678 cut-off events. [2021-03-25 12:17:34,706 INFO L130 PetriNetUnfolder]: For 56266/56359 co-relation queries the response was YES. [2021-03-25 12:17:34,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9403 conditions, 678 events. 239/678 cut-off events. For 56266/56359 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5029 event pairs, 21 based on Foata normal form. 20/693 useless extension candidates. Maximal degree in co-relation 9203. Up to 240 conditions per place. [2021-03-25 12:17:34,718 INFO L142 LiptonReduction]: Number of co-enabled transitions 606 [2021-03-25 12:17:34,735 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:34,735 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:34,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 12:17:34,736 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 385 transitions, 8894 flow [2021-03-25 12:17:34,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:34,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:34,736 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:34,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-03-25 12:17:34,736 INFO L428 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:34,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:34,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1794221936, now seen corresponding path program 7 times [2021-03-25 12:17:34,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:34,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586739912] [2021-03-25 12:17:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:34,741 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:34,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:34,746 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:34,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:34,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:34,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:34,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:34,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:34,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:34,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:34,774 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:34,777 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:34,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:34,788 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:34,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:34,800 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:34,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:34,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586739912] [2021-03-25 12:17:34,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:34,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:34,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049042007] [2021-03-25 12:17:34,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:34,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:34,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:34,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:34,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:34,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 385 transitions, 8894 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:34,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:34,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:34,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:35,128 INFO L129 PetriNetUnfolder]: 272/742 cut-off events. [2021-03-25 12:17:35,128 INFO L130 PetriNetUnfolder]: For 57506/57570 co-relation queries the response was YES. [2021-03-25 12:17:35,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10803 conditions, 742 events. 272/742 cut-off events. For 57506/57570 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5298 event pairs, 38 based on Foata normal form. 30/770 useless extension candidates. Maximal degree in co-relation 10611. Up to 594 conditions per place. [2021-03-25 12:17:35,138 INFO L132 encePairwiseOnDemand]: 102/116 looper letters, 348 selfloop transitions, 30 changer transitions 4/390 dead transitions. [2021-03-25 12:17:35,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 390 transitions, 9766 flow [2021-03-25 12:17:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:17:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:17:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-03-25 12:17:35,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2653256704980843 [2021-03-25 12:17:35,139 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-03-25 12:17:35,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-03-25 12:17:35,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:35,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-03-25 12:17:35,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,140 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 116.0) internal successors, (1160), 10 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,140 INFO L185 Difference]: Start difference. First operand has 401 places, 385 transitions, 8894 flow. Second operand 9 states and 277 transitions. [2021-03-25 12:17:35,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 390 transitions, 9766 flow [2021-03-25 12:17:35,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 390 transitions, 9559 flow, removed 71 selfloop flow, removed 7 redundant places. [2021-03-25 12:17:35,414 INFO L241 Difference]: Finished difference. Result has 404 places, 383 transitions, 8725 flow [2021-03-25 12:17:35,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8720, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8725, PETRI_PLACES=404, PETRI_TRANSITIONS=383} [2021-03-25 12:17:35,415 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 357 predicate places. [2021-03-25 12:17:35,415 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:35,415 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 383 transitions, 8725 flow [2021-03-25 12:17:35,415 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 383 transitions, 8725 flow [2021-03-25 12:17:35,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 383 transitions, 8725 flow [2021-03-25 12:17:35,523 INFO L129 PetriNetUnfolder]: 239/678 cut-off events. [2021-03-25 12:17:35,523 INFO L130 PetriNetUnfolder]: For 55420/55478 co-relation queries the response was YES. [2021-03-25 12:17:35,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9358 conditions, 678 events. 239/678 cut-off events. For 55420/55478 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5018 event pairs, 16 based on Foata normal form. 21/697 useless extension candidates. Maximal degree in co-relation 9189. Up to 239 conditions per place. [2021-03-25 12:17:35,535 INFO L142 LiptonReduction]: Number of co-enabled transitions 606 [2021-03-25 12:17:35,550 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:35,550 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:35,550 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 12:17:35,551 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 383 transitions, 8725 flow [2021-03-25 12:17:35,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,551 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:35,551 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:35,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-03-25 12:17:35,551 INFO L428 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:35,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:35,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1973382212, now seen corresponding path program 8 times [2021-03-25 12:17:35,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:35,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577518902] [2021-03-25 12:17:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:35,557 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:35,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:35,561 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:35,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:35,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:35,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:35,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:35,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:35,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:35,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:35,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:35,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:35,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:35,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:35,613 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:35,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:35,626 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:35,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:35,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577518902] [2021-03-25 12:17:35,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:35,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:35,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14305565] [2021-03-25 12:17:35,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:35,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:35,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:35,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:35,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:35,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 383 transitions, 8725 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:35,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:35,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:35,968 INFO L129 PetriNetUnfolder]: 271/739 cut-off events. [2021-03-25 12:17:35,968 INFO L130 PetriNetUnfolder]: For 56313/56377 co-relation queries the response was YES. [2021-03-25 12:17:35,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10679 conditions, 739 events. 271/739 cut-off events. For 56313/56377 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 5294 event pairs, 38 based on Foata normal form. 30/767 useless extension candidates. Maximal degree in co-relation 10508. Up to 592 conditions per place. [2021-03-25 12:17:35,978 INFO L132 encePairwiseOnDemand]: 102/116 looper letters, 346 selfloop transitions, 30 changer transitions 3/387 dead transitions. [2021-03-25 12:17:35,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 387 transitions, 9548 flow [2021-03-25 12:17:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 302 transitions. [2021-03-25 12:17:35,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2603448275862069 [2021-03-25 12:17:35,979 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 302 transitions. [2021-03-25 12:17:35,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 302 transitions. [2021-03-25 12:17:35,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:35,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 302 transitions. [2021-03-25 12:17:35,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.2) internal successors, (302), 10 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,980 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:35,980 INFO L185 Difference]: Start difference. First operand has 401 places, 383 transitions, 8725 flow. Second operand 10 states and 302 transitions. [2021-03-25 12:17:35,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 387 transitions, 9548 flow [2021-03-25 12:17:36,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 387 transitions, 9450 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:36,242 INFO L241 Difference]: Finished difference. Result has 403 places, 381 transitions, 8674 flow [2021-03-25 12:17:36,242 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8629, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8674, PETRI_PLACES=403, PETRI_TRANSITIONS=381} [2021-03-25 12:17:36,242 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 356 predicate places. [2021-03-25 12:17:36,242 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:36,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 381 transitions, 8674 flow [2021-03-25 12:17:36,243 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 381 transitions, 8674 flow [2021-03-25 12:17:36,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 381 transitions, 8674 flow [2021-03-25 12:17:36,345 INFO L129 PetriNetUnfolder]: 245/689 cut-off events. [2021-03-25 12:17:36,345 INFO L130 PetriNetUnfolder]: For 55119/55205 co-relation queries the response was YES. [2021-03-25 12:17:36,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9531 conditions, 689 events. 245/689 cut-off events. For 55119/55205 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5064 event pairs, 12 based on Foata normal form. 20/705 useless extension candidates. Maximal degree in co-relation 9363. Up to 248 conditions per place. [2021-03-25 12:17:36,359 INFO L142 LiptonReduction]: Number of co-enabled transitions 602 [2021-03-25 12:17:36,376 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:36,376 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:36,376 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 134 [2021-03-25 12:17:36,376 INFO L480 AbstractCegarLoop]: Abstraction has has 399 places, 381 transitions, 8674 flow [2021-03-25 12:17:36,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:36,376 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:36,376 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:36,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-03-25 12:17:36,376 INFO L428 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:36,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:36,376 INFO L82 PathProgramCache]: Analyzing trace with hash 2140717320, now seen corresponding path program 9 times [2021-03-25 12:17:36,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:36,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927423787] [2021-03-25 12:17:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:36,385 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:36,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:36,390 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:36,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:36,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:36,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:36,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:36,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:36,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:36,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:36,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:36,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:36,430 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:36,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:36,442 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:36,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:36,456 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:36,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:36,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927423787] [2021-03-25 12:17:36,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:36,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:36,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352285556] [2021-03-25 12:17:36,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:36,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:36,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:36,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:36,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:36,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 381 transitions, 8674 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:36,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:36,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:36,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:36,802 INFO L129 PetriNetUnfolder]: 270/735 cut-off events. [2021-03-25 12:17:36,802 INFO L130 PetriNetUnfolder]: For 55019/55083 co-relation queries the response was YES. [2021-03-25 12:17:36,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10623 conditions, 735 events. 270/735 cut-off events. For 55019/55083 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 5215 event pairs, 39 based on Foata normal form. 30/763 useless extension candidates. Maximal degree in co-relation 10453. Up to 591 conditions per place. [2021-03-25 12:17:36,813 INFO L132 encePairwiseOnDemand]: 102/116 looper letters, 346 selfloop transitions, 25 changer transitions 6/385 dead transitions. [2021-03-25 12:17:36,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 385 transitions, 9493 flow [2021-03-25 12:17:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 300 transitions. [2021-03-25 12:17:36,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25862068965517243 [2021-03-25 12:17:36,814 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 300 transitions. [2021-03-25 12:17:36,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 300 transitions. [2021-03-25 12:17:36,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:36,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 300 transitions. [2021-03-25 12:17:36,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.0) internal successors, (300), 10 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:36,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:36,815 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 116.0) internal successors, (1276), 11 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:36,815 INFO L185 Difference]: Start difference. First operand has 399 places, 381 transitions, 8674 flow. Second operand 10 states and 300 transitions. [2021-03-25 12:17:36,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 385 transitions, 9493 flow [2021-03-25 12:17:37,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 385 transitions, 9415 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:37,096 INFO L241 Difference]: Finished difference. Result has 401 places, 376 transitions, 8583 flow [2021-03-25 12:17:37,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8598, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8583, PETRI_PLACES=401, PETRI_TRANSITIONS=376} [2021-03-25 12:17:37,096 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 354 predicate places. [2021-03-25 12:17:37,096 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:37,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 376 transitions, 8583 flow [2021-03-25 12:17:37,096 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 376 transitions, 8583 flow [2021-03-25 12:17:37,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 376 transitions, 8583 flow [2021-03-25 12:17:37,197 INFO L129 PetriNetUnfolder]: 244/698 cut-off events. [2021-03-25 12:17:37,197 INFO L130 PetriNetUnfolder]: For 52842/52859 co-relation queries the response was YES. [2021-03-25 12:17:37,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9663 conditions, 698 events. 244/698 cut-off events. For 52842/52859 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5188 event pairs, 17 based on Foata normal form. 4/700 useless extension candidates. Maximal degree in co-relation 9496. Up to 248 conditions per place. [2021-03-25 12:17:37,209 INFO L142 LiptonReduction]: Number of co-enabled transitions 602 [2021-03-25 12:17:37,226 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:37,226 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:37,226 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-03-25 12:17:37,226 INFO L480 AbstractCegarLoop]: Abstraction has has 394 places, 376 transitions, 8583 flow [2021-03-25 12:17:37,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:37,227 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:37,227 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:37,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-03-25 12:17:37,227 INFO L428 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:37,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:37,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1208055164, now seen corresponding path program 5 times [2021-03-25 12:17:37,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:37,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495838253] [2021-03-25 12:17:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:37,233 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:37,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:37,237 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:37,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:37,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:37,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:37,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:37,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:37,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:37,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:37,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:37,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:37,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:37,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:37,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:37,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:37,300 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:37,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:37,314 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:37,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:37,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495838253] [2021-03-25 12:17:37,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:37,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:37,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576966287] [2021-03-25 12:17:37,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:37,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:37,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:37,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:37,318 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 116 [2021-03-25 12:17:37,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 376 transitions, 8583 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:37,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:37,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 116 [2021-03-25 12:17:37,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:37,855 INFO L129 PetriNetUnfolder]: 300/797 cut-off events. [2021-03-25 12:17:37,855 INFO L130 PetriNetUnfolder]: For 67974/68033 co-relation queries the response was YES. [2021-03-25 12:17:37,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12195 conditions, 797 events. 300/797 cut-off events. For 67974/68033 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5720 event pairs, 34 based on Foata normal form. 33/829 useless extension candidates. Maximal degree in co-relation 12026. Up to 603 conditions per place. [2021-03-25 12:17:37,866 INFO L132 encePairwiseOnDemand]: 101/116 looper letters, 344 selfloop transitions, 62 changer transitions 9/423 dead transitions. [2021-03-25 12:17:37,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 423 transitions, 11773 flow [2021-03-25 12:17:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 12:17:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 12:17:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 519 transitions. [2021-03-25 12:17:37,868 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.263184584178499 [2021-03-25 12:17:37,868 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 519 transitions. [2021-03-25 12:17:37,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 519 transitions. [2021-03-25 12:17:37,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:37,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 519 transitions. [2021-03-25 12:17:37,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 30.529411764705884) internal successors, (519), 17 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:37,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 116.0) internal successors, (2088), 18 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:37,869 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 116.0) internal successors, (2088), 18 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:37,869 INFO L185 Difference]: Start difference. First operand has 394 places, 376 transitions, 8583 flow. Second operand 17 states and 519 transitions. [2021-03-25 12:17:37,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 423 transitions, 11773 flow [2021-03-25 12:17:38,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 423 transitions, 11665 flow, removed 12 selfloop flow, removed 11 redundant places. [2021-03-25 12:17:38,197 INFO L241 Difference]: Finished difference. Result has 403 places, 408 transitions, 10122 flow [2021-03-25 12:17:38,197 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=8475, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10122, PETRI_PLACES=403, PETRI_TRANSITIONS=408} [2021-03-25 12:17:38,198 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 356 predicate places. [2021-03-25 12:17:38,198 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:38,198 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 408 transitions, 10122 flow [2021-03-25 12:17:38,198 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 408 transitions, 10122 flow [2021-03-25 12:17:38,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 397 places, 408 transitions, 10122 flow [2021-03-25 12:17:38,311 INFO L129 PetriNetUnfolder]: 270/749 cut-off events. [2021-03-25 12:17:38,311 INFO L130 PetriNetUnfolder]: For 67904/67920 co-relation queries the response was YES. [2021-03-25 12:17:38,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11156 conditions, 749 events. 270/749 cut-off events. For 67904/67920 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5591 event pairs, 13 based on Foata normal form. 4/751 useless extension candidates. Maximal degree in co-relation 10989. Up to 286 conditions per place. [2021-03-25 12:17:38,325 INFO L142 LiptonReduction]: Number of co-enabled transitions 640 [2021-03-25 12:17:38,403 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:38,403 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:17:38,403 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 205 [2021-03-25 12:17:38,403 INFO L480 AbstractCegarLoop]: Abstraction has has 397 places, 408 transitions, 10144 flow [2021-03-25 12:17:38,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:38,403 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:38,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:38,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-03-25 12:17:38,404 INFO L428 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:38,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:38,404 INFO L82 PathProgramCache]: Analyzing trace with hash -282566118, now seen corresponding path program 6 times [2021-03-25 12:17:38,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:38,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455799427] [2021-03-25 12:17:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:38,409 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:38,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:38,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:38,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:38,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:38,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:38,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:38,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:38,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:38,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:38,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:38,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:38,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:38,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:38,468 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:38,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:38,481 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:38,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:38,496 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:38,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:38,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455799427] [2021-03-25 12:17:38,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:38,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:38,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012678293] [2021-03-25 12:17:38,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:38,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:38,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:38,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:38,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 118 [2021-03-25 12:17:38,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 408 transitions, 10144 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:38,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:38,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 118 [2021-03-25 12:17:38,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:39,114 INFO L129 PetriNetUnfolder]: 334/881 cut-off events. [2021-03-25 12:17:39,115 INFO L130 PetriNetUnfolder]: For 87243/87310 co-relation queries the response was YES. [2021-03-25 12:17:39,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14249 conditions, 881 events. 334/881 cut-off events. For 87243/87310 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6458 event pairs, 21 based on Foata normal form. 48/929 useless extension candidates. Maximal degree in co-relation 14080. Up to 580 conditions per place. [2021-03-25 12:17:39,128 INFO L132 encePairwiseOnDemand]: 100/118 looper letters, 320 selfloop transitions, 127 changer transitions 5/460 dead transitions. [2021-03-25 12:17:39,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 460 transitions, 13734 flow [2021-03-25 12:17:39,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:17:39,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:17:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 453 transitions. [2021-03-25 12:17:39,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27421307506053266 [2021-03-25 12:17:39,129 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 453 transitions. [2021-03-25 12:17:39,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 453 transitions. [2021-03-25 12:17:39,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:39,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 453 transitions. [2021-03-25 12:17:39,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 32.357142857142854) internal successors, (453), 14 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:39,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 118.0) internal successors, (1770), 15 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:39,130 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 118.0) internal successors, (1770), 15 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:39,130 INFO L185 Difference]: Start difference. First operand has 397 places, 408 transitions, 10144 flow. Second operand 14 states and 453 transitions. [2021-03-25 12:17:39,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 460 transitions, 13734 flow [2021-03-25 12:17:39,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 460 transitions, 12910 flow, removed 412 selfloop flow, removed 1 redundant places. [2021-03-25 12:17:39,506 INFO L241 Difference]: Finished difference. Result has 414 places, 447 transitions, 11772 flow [2021-03-25 12:17:39,506 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=9320, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11772, PETRI_PLACES=414, PETRI_TRANSITIONS=447} [2021-03-25 12:17:39,506 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 367 predicate places. [2021-03-25 12:17:39,506 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:39,506 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 414 places, 447 transitions, 11772 flow [2021-03-25 12:17:39,506 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 414 places, 447 transitions, 11772 flow [2021-03-25 12:17:39,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 447 transitions, 11772 flow [2021-03-25 12:17:39,640 INFO L129 PetriNetUnfolder]: 311/832 cut-off events. [2021-03-25 12:17:39,640 INFO L130 PetriNetUnfolder]: For 86997/87066 co-relation queries the response was YES. [2021-03-25 12:17:39,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12849 conditions, 832 events. 311/832 cut-off events. For 86997/87066 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6226 event pairs, 20 based on Foata normal form. 14/842 useless extension candidates. Maximal degree in co-relation 12645. Up to 320 conditions per place. [2021-03-25 12:17:39,656 INFO L142 LiptonReduction]: Number of co-enabled transitions 678 [2021-03-25 12:17:39,731 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:17:39,731 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:39,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 225 [2021-03-25 12:17:39,731 INFO L480 AbstractCegarLoop]: Abstraction has has 414 places, 447 transitions, 11857 flow [2021-03-25 12:17:39,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:39,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:39,731 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:39,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-03-25 12:17:39,732 INFO L428 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:39,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:39,732 INFO L82 PathProgramCache]: Analyzing trace with hash 998888614, now seen corresponding path program 1 times [2021-03-25 12:17:39,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:39,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765535482] [2021-03-25 12:17:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:39,756 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:39,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:39,761 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:39,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:39,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:39,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:39,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:39,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:39,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:39,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:39,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:39,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:39,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:39,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:39,826 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:39,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:39,839 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:39,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:39,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765535482] [2021-03-25 12:17:39,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:39,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:39,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613748033] [2021-03-25 12:17:39,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:39,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:39,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:39,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:39,842 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 119 [2021-03-25 12:17:39,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 447 transitions, 11857 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:39,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:39,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 119 [2021-03-25 12:17:39,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:40,367 INFO L129 PetriNetUnfolder]: 334/895 cut-off events. [2021-03-25 12:17:40,367 INFO L130 PetriNetUnfolder]: For 92525/92623 co-relation queries the response was YES. [2021-03-25 12:17:40,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14376 conditions, 895 events. 334/895 cut-off events. For 92525/92623 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6642 event pairs, 32 based on Foata normal form. 52/946 useless extension candidates. Maximal degree in co-relation 14180. Up to 674 conditions per place. [2021-03-25 12:17:40,381 INFO L132 encePairwiseOnDemand]: 103/119 looper letters, 391 selfloop transitions, 59 changer transitions 10/468 dead transitions. [2021-03-25 12:17:40,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 468 transitions, 13571 flow [2021-03-25 12:17:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:17:40,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:17:40,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 402 transitions. [2021-03-25 12:17:40,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.259857789269554 [2021-03-25 12:17:40,382 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 402 transitions. [2021-03-25 12:17:40,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 402 transitions. [2021-03-25 12:17:40,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:40,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 402 transitions. [2021-03-25 12:17:40,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.923076923076923) internal successors, (402), 13 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:40,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 119.0) internal successors, (1666), 14 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:40,383 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 119.0) internal successors, (1666), 14 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:40,383 INFO L185 Difference]: Start difference. First operand has 414 places, 447 transitions, 11857 flow. Second operand 13 states and 402 transitions. [2021-03-25 12:17:40,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 468 transitions, 13571 flow [2021-03-25 12:17:40,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 468 transitions, 12278 flow, removed 628 selfloop flow, removed 2 redundant places. [2021-03-25 12:17:40,774 INFO L241 Difference]: Finished difference. Result has 429 places, 453 transitions, 11152 flow [2021-03-25 12:17:40,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=10602, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=11152, PETRI_PLACES=429, PETRI_TRANSITIONS=453} [2021-03-25 12:17:40,774 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 382 predicate places. [2021-03-25 12:17:40,774 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:40,774 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 453 transitions, 11152 flow [2021-03-25 12:17:40,775 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 453 transitions, 11152 flow [2021-03-25 12:17:40,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 426 places, 453 transitions, 11152 flow [2021-03-25 12:17:40,928 INFO L129 PetriNetUnfolder]: 312/854 cut-off events. [2021-03-25 12:17:40,929 INFO L130 PetriNetUnfolder]: For 78950/78972 co-relation queries the response was YES. [2021-03-25 12:17:40,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12441 conditions, 854 events. 312/854 cut-off events. For 78950/78972 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6442 event pairs, 16 based on Foata normal form. 10/864 useless extension candidates. Maximal degree in co-relation 12260. Up to 309 conditions per place. [2021-03-25 12:17:40,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 678 [2021-03-25 12:17:41,036 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:41,036 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:17:41,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 12:17:41,036 INFO L480 AbstractCegarLoop]: Abstraction has has 426 places, 453 transitions, 11326 flow [2021-03-25 12:17:41,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:41,036 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:41,037 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:41,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-03-25 12:17:41,037 INFO L428 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:41,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1530891078, now seen corresponding path program 2 times [2021-03-25 12:17:41,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:41,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669573274] [2021-03-25 12:17:41,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:41,052 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:41,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:41,056 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:41,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:41,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:41,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:41,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:41,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:41,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:41,085 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:41,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:41,087 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:41,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:41,099 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:41,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:41,111 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:41,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:41,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:41,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669573274] [2021-03-25 12:17:41,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:41,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:41,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150230798] [2021-03-25 12:17:41,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:41,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:41,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:41,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:41,114 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 121 [2021-03-25 12:17:41,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 453 transitions, 11326 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:41,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:41,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 121 [2021-03-25 12:17:41,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:41,587 INFO L129 PetriNetUnfolder]: 333/895 cut-off events. [2021-03-25 12:17:41,587 INFO L130 PetriNetUnfolder]: For 84633/84719 co-relation queries the response was YES. [2021-03-25 12:17:41,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13776 conditions, 895 events. 333/895 cut-off events. For 84633/84719 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6667 event pairs, 32 based on Foata normal form. 52/946 useless extension candidates. Maximal degree in co-relation 13592. Up to 680 conditions per place. [2021-03-25 12:17:41,601 INFO L132 encePairwiseOnDemand]: 103/121 looper letters, 390 selfloop transitions, 67 changer transitions 2/467 dead transitions. [2021-03-25 12:17:41,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 467 transitions, 12970 flow [2021-03-25 12:17:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:17:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:17:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 299 transitions. [2021-03-25 12:17:41,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2745638200183655 [2021-03-25 12:17:41,602 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 299 transitions. [2021-03-25 12:17:41,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 299 transitions. [2021-03-25 12:17:41,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:41,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 299 transitions. [2021-03-25 12:17:41,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.22222222222222) internal successors, (299), 9 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:41,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 121.0) internal successors, (1210), 10 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:41,603 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 121.0) internal successors, (1210), 10 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:41,603 INFO L185 Difference]: Start difference. First operand has 426 places, 453 transitions, 11326 flow. Second operand 9 states and 299 transitions. [2021-03-25 12:17:41,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 467 transitions, 12970 flow [2021-03-25 12:17:41,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 467 transitions, 12394 flow, removed 270 selfloop flow, removed 4 redundant places. [2021-03-25 12:17:41,952 INFO L241 Difference]: Finished difference. Result has 432 places, 462 transitions, 11495 flow [2021-03-25 12:17:41,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=10754, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11495, PETRI_PLACES=432, PETRI_TRANSITIONS=462} [2021-03-25 12:17:41,952 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 385 predicate places. [2021-03-25 12:17:41,952 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:41,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 432 places, 462 transitions, 11495 flow [2021-03-25 12:17:41,952 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 432 places, 462 transitions, 11495 flow [2021-03-25 12:17:41,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 462 transitions, 11495 flow [2021-03-25 12:17:42,088 INFO L129 PetriNetUnfolder]: 312/864 cut-off events. [2021-03-25 12:17:42,089 INFO L130 PetriNetUnfolder]: For 78513/78549 co-relation queries the response was YES. [2021-03-25 12:17:42,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12480 conditions, 864 events. 312/864 cut-off events. For 78513/78549 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6664 event pairs, 22 based on Foata normal form. 12/873 useless extension candidates. Maximal degree in co-relation 12270. Up to 309 conditions per place. [2021-03-25 12:17:42,107 INFO L142 LiptonReduction]: Number of co-enabled transitions 680 [2021-03-25 12:17:42,183 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:42,183 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:17:42,183 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 12:17:42,183 INFO L480 AbstractCegarLoop]: Abstraction has has 432 places, 462 transitions, 11584 flow [2021-03-25 12:17:42,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:42,183 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:42,183 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:42,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-03-25 12:17:42,183 INFO L428 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:42,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1749007923, now seen corresponding path program 1 times [2021-03-25 12:17:42,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:42,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195837431] [2021-03-25 12:17:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:42,192 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:42,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:42,196 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:42,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:42,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:42,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:42,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:42,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:42,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:42,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:42,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:42,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:42,235 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:42,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:42,247 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:42,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:42,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195837431] [2021-03-25 12:17:42,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:42,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:42,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253575796] [2021-03-25 12:17:42,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:42,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:42,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:42,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:42,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 462 transitions, 11584 flow. Second operand has 8 states, 8 states have (on average 27.125) internal successors, (217), 8 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:42,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:42,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:42,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:42,732 INFO L129 PetriNetUnfolder]: 340/931 cut-off events. [2021-03-25 12:17:42,733 INFO L130 PetriNetUnfolder]: For 91250/91336 co-relation queries the response was YES. [2021-03-25 12:17:42,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14214 conditions, 931 events. 340/931 cut-off events. For 91250/91336 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 7099 event pairs, 32 based on Foata normal form. 53/983 useless extension candidates. Maximal degree in co-relation 14012. Up to 639 conditions per place. [2021-03-25 12:17:42,747 INFO L132 encePairwiseOnDemand]: 104/122 looper letters, 347 selfloop transitions, 116 changer transitions 13/484 dead transitions. [2021-03-25 12:17:42,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 484 transitions, 13561 flow [2021-03-25 12:17:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:17:42,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:17:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 278 transitions. [2021-03-25 12:17:42,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2848360655737705 [2021-03-25 12:17:42,748 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 278 transitions. [2021-03-25 12:17:42,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 278 transitions. [2021-03-25 12:17:42,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:42,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 278 transitions. [2021-03-25 12:17:42,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.75) internal successors, (278), 8 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:42,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:42,749 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:42,749 INFO L185 Difference]: Start difference. First operand has 432 places, 462 transitions, 11584 flow. Second operand 8 states and 278 transitions. [2021-03-25 12:17:42,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 484 transitions, 13561 flow [2021-03-25 12:17:43,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 484 transitions, 12985 flow, removed 263 selfloop flow, removed 3 redundant places. [2021-03-25 12:17:43,139 INFO L241 Difference]: Finished difference. Result has 441 places, 464 transitions, 11755 flow [2021-03-25 12:17:43,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11008, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11755, PETRI_PLACES=441, PETRI_TRANSITIONS=464} [2021-03-25 12:17:43,139 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 394 predicate places. [2021-03-25 12:17:43,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:43,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 464 transitions, 11755 flow [2021-03-25 12:17:43,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 464 transitions, 11755 flow [2021-03-25 12:17:43,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 437 places, 464 transitions, 11755 flow [2021-03-25 12:17:43,282 INFO L129 PetriNetUnfolder]: 321/868 cut-off events. [2021-03-25 12:17:43,282 INFO L130 PetriNetUnfolder]: For 84363/84415 co-relation queries the response was YES. [2021-03-25 12:17:43,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13065 conditions, 868 events. 321/868 cut-off events. For 84363/84415 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6617 event pairs, 16 based on Foata normal form. 3/866 useless extension candidates. Maximal degree in co-relation 12849. Up to 322 conditions per place. [2021-03-25 12:17:43,300 INFO L142 LiptonReduction]: Number of co-enabled transitions 684 [2021-03-25 12:17:43,325 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:43,325 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:43,325 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 186 [2021-03-25 12:17:43,325 INFO L480 AbstractCegarLoop]: Abstraction has has 437 places, 464 transitions, 11755 flow [2021-03-25 12:17:43,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.125) internal successors, (217), 8 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:43,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:43,325 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:43,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-03-25 12:17:43,325 INFO L428 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:43,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:43,326 INFO L82 PathProgramCache]: Analyzing trace with hash -2067999212, now seen corresponding path program 1 times [2021-03-25 12:17:43,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:43,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073929691] [2021-03-25 12:17:43,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:43,343 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:43,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:43,349 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:43,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:43,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:43,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:43,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:43,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:43,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:43,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:43,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:43,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:43,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:17:43,397 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:17:43,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:43,404 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:43,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:43,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073929691] [2021-03-25 12:17:43,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:43,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:17:43,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363571911] [2021-03-25 12:17:43,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:17:43,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:43,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:17:43,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:17:43,408 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:43,408 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 464 transitions, 11755 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:43,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:43,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:43,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:43,834 INFO L129 PetriNetUnfolder]: 338/912 cut-off events. [2021-03-25 12:17:43,834 INFO L130 PetriNetUnfolder]: For 89924/89987 co-relation queries the response was YES. [2021-03-25 12:17:43,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14257 conditions, 912 events. 338/912 cut-off events. For 89924/89987 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6834 event pairs, 31 based on Foata normal form. 41/953 useless extension candidates. Maximal degree in co-relation 14049. Up to 703 conditions per place. [2021-03-25 12:17:43,849 INFO L132 encePairwiseOnDemand]: 107/122 looper letters, 407 selfloop transitions, 57 changer transitions 6/478 dead transitions. [2021-03-25 12:17:43,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 478 transitions, 13180 flow [2021-03-25 12:17:43,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:17:43,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:17:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 244 transitions. [2021-03-25 12:17:43,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2857142857142857 [2021-03-25 12:17:43,850 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 244 transitions. [2021-03-25 12:17:43,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 244 transitions. [2021-03-25 12:17:43,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:43,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 244 transitions. [2021-03-25 12:17:43,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:43,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:43,851 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:43,851 INFO L185 Difference]: Start difference. First operand has 437 places, 464 transitions, 11755 flow. Second operand 7 states and 244 transitions. [2021-03-25 12:17:43,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 478 transitions, 13180 flow [2021-03-25 12:17:44,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 478 transitions, 12957 flow, removed 79 selfloop flow, removed 5 redundant places. [2021-03-25 12:17:44,241 INFO L241 Difference]: Finished difference. Result has 441 places, 468 transitions, 11894 flow [2021-03-25 12:17:44,242 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11546, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11894, PETRI_PLACES=441, PETRI_TRANSITIONS=468} [2021-03-25 12:17:44,242 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 394 predicate places. [2021-03-25 12:17:44,242 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:44,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 468 transitions, 11894 flow [2021-03-25 12:17:44,242 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 468 transitions, 11894 flow [2021-03-25 12:17:44,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 441 places, 468 transitions, 11894 flow [2021-03-25 12:17:44,380 INFO L129 PetriNetUnfolder]: 321/862 cut-off events. [2021-03-25 12:17:44,380 INFO L130 PetriNetUnfolder]: For 84465/84558 co-relation queries the response was YES. [2021-03-25 12:17:44,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12984 conditions, 862 events. 321/862 cut-off events. For 84465/84558 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6514 event pairs, 20 based on Foata normal form. 9/862 useless extension candidates. Maximal degree in co-relation 12767. Up to 318 conditions per place. [2021-03-25 12:17:44,397 INFO L142 LiptonReduction]: Number of co-enabled transitions 684 [2021-03-25 12:17:44,422 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:44,422 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:44,422 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-25 12:17:44,422 INFO L480 AbstractCegarLoop]: Abstraction has has 441 places, 468 transitions, 11894 flow [2021-03-25 12:17:44,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:44,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:44,422 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:44,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-03-25 12:17:44,423 INFO L428 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:44,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:44,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1877386462, now seen corresponding path program 3 times [2021-03-25 12:17:44,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:44,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438208849] [2021-03-25 12:17:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:44,429 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:44,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:44,433 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:44,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:44,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:44,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:44,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:44,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:44,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:44,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:44,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:44,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:44,473 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:44,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:44,485 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:44,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:44,498 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:44,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:44,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438208849] [2021-03-25 12:17:44,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:44,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:44,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313461442] [2021-03-25 12:17:44,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:44,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:44,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:44,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:44,502 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:44,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 468 transitions, 11894 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:44,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:44,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:44,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:45,015 INFO L129 PetriNetUnfolder]: 338/904 cut-off events. [2021-03-25 12:17:45,015 INFO L130 PetriNetUnfolder]: For 88673/88761 co-relation queries the response was YES. [2021-03-25 12:17:45,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14204 conditions, 904 events. 338/904 cut-off events. For 88673/88761 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6705 event pairs, 34 based on Foata normal form. 52/955 useless extension candidates. Maximal degree in co-relation 13995. Up to 690 conditions per place. [2021-03-25 12:17:45,029 INFO L132 encePairwiseOnDemand]: 105/122 looper letters, 395 selfloop transitions, 71 changer transitions 5/479 dead transitions. [2021-03-25 12:17:45,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 479 transitions, 13308 flow [2021-03-25 12:17:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:17:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:17:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 379 transitions. [2021-03-25 12:17:45,030 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.258879781420765 [2021-03-25 12:17:45,031 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 379 transitions. [2021-03-25 12:17:45,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 379 transitions. [2021-03-25 12:17:45,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:45,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 379 transitions. [2021-03-25 12:17:45,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:45,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 122.0) internal successors, (1586), 13 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:45,032 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 122.0) internal successors, (1586), 13 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:45,032 INFO L185 Difference]: Start difference. First operand has 441 places, 468 transitions, 11894 flow. Second operand 12 states and 379 transitions. [2021-03-25 12:17:45,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 479 transitions, 13308 flow [2021-03-25 12:17:45,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 479 transitions, 13198 flow, removed 21 selfloop flow, removed 4 redundant places. [2021-03-25 12:17:45,473 INFO L241 Difference]: Finished difference. Result has 450 places, 471 transitions, 12136 flow [2021-03-25 12:17:45,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11786, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12136, PETRI_PLACES=450, PETRI_TRANSITIONS=471} [2021-03-25 12:17:45,473 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 403 predicate places. [2021-03-25 12:17:45,474 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:45,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 450 places, 471 transitions, 12136 flow [2021-03-25 12:17:45,474 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 450 places, 471 transitions, 12136 flow [2021-03-25 12:17:45,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 450 places, 471 transitions, 12136 flow [2021-03-25 12:17:45,620 INFO L129 PetriNetUnfolder]: 318/860 cut-off events. [2021-03-25 12:17:45,620 INFO L130 PetriNetUnfolder]: For 83405/83469 co-relation queries the response was YES. [2021-03-25 12:17:45,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13088 conditions, 860 events. 318/860 cut-off events. For 83405/83469 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6512 event pairs, 18 based on Foata normal form. 5/862 useless extension candidates. Maximal degree in co-relation 12870. Up to 317 conditions per place. [2021-03-25 12:17:45,639 INFO L142 LiptonReduction]: Number of co-enabled transitions 684 [2021-03-25 12:17:45,664 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:45,664 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:45,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 12:17:45,664 INFO L480 AbstractCegarLoop]: Abstraction has has 450 places, 471 transitions, 12136 flow [2021-03-25 12:17:45,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:45,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:45,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:45,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-03-25 12:17:45,664 INFO L428 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:45,665 INFO L82 PathProgramCache]: Analyzing trace with hash 818020850, now seen corresponding path program 4 times [2021-03-25 12:17:45,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:45,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426484415] [2021-03-25 12:17:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:45,670 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:45,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:45,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:45,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:45,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:45,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:45,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:45,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:45,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:45,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:45,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:45,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:45,715 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:45,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:45,728 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:45,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:45,742 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:45,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:45,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426484415] [2021-03-25 12:17:45,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:45,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:45,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23745670] [2021-03-25 12:17:45,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:45,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:45,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:45,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:45,745 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:45,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 471 transitions, 12136 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:45,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:45,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:45,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:46,305 INFO L129 PetriNetUnfolder]: 335/920 cut-off events. [2021-03-25 12:17:46,305 INFO L130 PetriNetUnfolder]: For 87673/87784 co-relation queries the response was YES. [2021-03-25 12:17:46,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14282 conditions, 920 events. 335/920 cut-off events. For 87673/87784 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6952 event pairs, 37 based on Foata normal form. 57/977 useless extension candidates. Maximal degree in co-relation 14072. Up to 688 conditions per place. [2021-03-25 12:17:46,320 INFO L132 encePairwiseOnDemand]: 105/122 looper letters, 402 selfloop transitions, 58 changer transitions 13/481 dead transitions. [2021-03-25 12:17:46,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 481 transitions, 13422 flow [2021-03-25 12:17:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:17:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:17:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 381 transitions. [2021-03-25 12:17:46,323 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26024590163934425 [2021-03-25 12:17:46,323 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 381 transitions. [2021-03-25 12:17:46,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 381 transitions. [2021-03-25 12:17:46,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:46,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 381 transitions. [2021-03-25 12:17:46,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.75) internal successors, (381), 12 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:46,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 122.0) internal successors, (1586), 13 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:46,324 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 122.0) internal successors, (1586), 13 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:46,324 INFO L185 Difference]: Start difference. First operand has 450 places, 471 transitions, 12136 flow. Second operand 12 states and 381 transitions. [2021-03-25 12:17:46,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 481 transitions, 13422 flow [2021-03-25 12:17:46,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 481 transitions, 13020 flow, removed 171 selfloop flow, removed 5 redundant places. [2021-03-25 12:17:46,799 INFO L241 Difference]: Finished difference. Result has 460 places, 464 transitions, 11785 flow [2021-03-25 12:17:46,800 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11736, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11785, PETRI_PLACES=460, PETRI_TRANSITIONS=464} [2021-03-25 12:17:46,800 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 413 predicate places. [2021-03-25 12:17:46,800 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:46,800 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 460 places, 464 transitions, 11785 flow [2021-03-25 12:17:46,800 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 460 places, 464 transitions, 11785 flow [2021-03-25 12:17:46,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 464 transitions, 11785 flow [2021-03-25 12:17:46,958 INFO L129 PetriNetUnfolder]: 313/849 cut-off events. [2021-03-25 12:17:46,958 INFO L130 PetriNetUnfolder]: For 84743/84795 co-relation queries the response was YES. [2021-03-25 12:17:46,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12931 conditions, 849 events. 313/849 cut-off events. For 84743/84795 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6442 event pairs, 16 based on Foata normal form. 5/854 useless extension candidates. Maximal degree in co-relation 12709. Up to 308 conditions per place. [2021-03-25 12:17:46,983 INFO L142 LiptonReduction]: Number of co-enabled transitions 692 [2021-03-25 12:17:47,008 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:47,008 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:47,008 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 208 [2021-03-25 12:17:47,009 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 464 transitions, 11785 flow [2021-03-25 12:17:47,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:47,009 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:47,009 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:47,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-03-25 12:17:47,009 INFO L428 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:47,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:47,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1164107309, now seen corresponding path program 1 times [2021-03-25 12:17:47,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:47,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799622000] [2021-03-25 12:17:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:47,015 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:47,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:47,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:47,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:47,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:47,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:47,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:47,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:47,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:47,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:47,042 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.1 percent of original size [2021-03-25 12:17:47,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 12:17:47,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:47,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:47,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:47,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:47,081 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:47,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:47,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799622000] [2021-03-25 12:17:47,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:47,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:17:47,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914432431] [2021-03-25 12:17:47,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:17:47,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:17:47,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:17:47,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:47,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 464 transitions, 11785 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:47,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:47,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:47,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:47,684 INFO L129 PetriNetUnfolder]: 340/921 cut-off events. [2021-03-25 12:17:47,684 INFO L130 PetriNetUnfolder]: For 95414/95482 co-relation queries the response was YES. [2021-03-25 12:17:47,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14653 conditions, 921 events. 340/921 cut-off events. For 95414/95482 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6913 event pairs, 21 based on Foata normal form. 47/968 useless extension candidates. Maximal degree in co-relation 14439. Up to 668 conditions per place. [2021-03-25 12:17:47,700 INFO L132 encePairwiseOnDemand]: 104/122 looper letters, 390 selfloop transitions, 89 changer transitions 3/490 dead transitions. [2021-03-25 12:17:47,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 490 transitions, 13904 flow [2021-03-25 12:17:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:17:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:17:47,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 248 transitions. [2021-03-25 12:17:47,701 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2903981264637002 [2021-03-25 12:17:47,701 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 248 transitions. [2021-03-25 12:17:47,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 248 transitions. [2021-03-25 12:17:47,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:47,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 248 transitions. [2021-03-25 12:17:47,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 35.42857142857143) internal successors, (248), 7 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:47,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:47,702 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:47,702 INFO L185 Difference]: Start difference. First operand has 459 places, 464 transitions, 11785 flow. Second operand 7 states and 248 transitions. [2021-03-25 12:17:47,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 490 transitions, 13904 flow [2021-03-25 12:17:48,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 490 transitions, 13404 flow, removed 100 selfloop flow, removed 20 redundant places. [2021-03-25 12:17:48,184 INFO L241 Difference]: Finished difference. Result has 449 places, 477 transitions, 12195 flow [2021-03-25 12:17:48,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11293, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12195, PETRI_PLACES=449, PETRI_TRANSITIONS=477} [2021-03-25 12:17:48,185 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 402 predicate places. [2021-03-25 12:17:48,185 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:48,185 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 449 places, 477 transitions, 12195 flow [2021-03-25 12:17:48,185 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 449 places, 477 transitions, 12195 flow [2021-03-25 12:17:48,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 449 places, 477 transitions, 12195 flow [2021-03-25 12:17:48,351 INFO L129 PetriNetUnfolder]: 322/871 cut-off events. [2021-03-25 12:17:48,351 INFO L130 PetriNetUnfolder]: For 92518/92658 co-relation queries the response was YES. [2021-03-25 12:17:48,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13391 conditions, 871 events. 322/871 cut-off events. For 92518/92658 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6581 event pairs, 21 based on Foata normal form. 16/884 useless extension candidates. Maximal degree in co-relation 13169. Up to 315 conditions per place. [2021-03-25 12:17:48,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 716 [2021-03-25 12:17:48,398 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:48,398 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:48,398 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 213 [2021-03-25 12:17:48,399 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 477 transitions, 12195 flow [2021-03-25 12:17:48,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:48,399 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:48,399 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:48,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-03-25 12:17:48,399 INFO L428 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:48,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1226964062, now seen corresponding path program 2 times [2021-03-25 12:17:48,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:48,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804878504] [2021-03-25 12:17:48,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:48,405 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:48,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:48,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:48,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:48,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:48,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:48,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:48,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:48,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:48,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:48,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:48,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:48,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:48,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:17:48,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:48,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:48,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:48,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:48,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804878504] [2021-03-25 12:17:48,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:48,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:17:48,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591322592] [2021-03-25 12:17:48,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:17:48,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:48,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:17:48,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:17:48,455 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:48,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 477 transitions, 12195 flow. Second operand has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:48,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:48,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:48,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:48,888 INFO L129 PetriNetUnfolder]: 339/910 cut-off events. [2021-03-25 12:17:48,888 INFO L130 PetriNetUnfolder]: For 92712/92786 co-relation queries the response was YES. [2021-03-25 12:17:48,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14543 conditions, 910 events. 339/910 cut-off events. For 92712/92786 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6783 event pairs, 29 based on Foata normal form. 46/956 useless extension candidates. Maximal degree in co-relation 14329. Up to 708 conditions per place. [2021-03-25 12:17:48,903 INFO L132 encePairwiseOnDemand]: 105/122 looper letters, 414 selfloop transitions, 57 changer transitions 4/483 dead transitions. [2021-03-25 12:17:48,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 483 transitions, 13453 flow [2021-03-25 12:17:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 12:17:48,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 12:17:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2021-03-25 12:17:48,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28337236533957844 [2021-03-25 12:17:48,904 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 242 transitions. [2021-03-25 12:17:48,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 242 transitions. [2021-03-25 12:17:48,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:48,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 242 transitions. [2021-03-25 12:17:48,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 34.57142857142857) internal successors, (242), 7 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:48,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:48,905 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:48,905 INFO L185 Difference]: Start difference. First operand has 449 places, 477 transitions, 12195 flow. Second operand 7 states and 242 transitions. [2021-03-25 12:17:48,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 483 transitions, 13453 flow [2021-03-25 12:17:49,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 483 transitions, 13234 flow, removed 88 selfloop flow, removed 2 redundant places. [2021-03-25 12:17:49,387 INFO L241 Difference]: Finished difference. Result has 455 places, 475 transitions, 12110 flow [2021-03-25 12:17:49,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11976, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12110, PETRI_PLACES=455, PETRI_TRANSITIONS=475} [2021-03-25 12:17:49,387 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 408 predicate places. [2021-03-25 12:17:49,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:49,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 455 places, 475 transitions, 12110 flow [2021-03-25 12:17:49,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 455 places, 475 transitions, 12110 flow [2021-03-25 12:17:49,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 455 places, 475 transitions, 12110 flow [2021-03-25 12:17:49,550 INFO L129 PetriNetUnfolder]: 323/876 cut-off events. [2021-03-25 12:17:49,550 INFO L130 PetriNetUnfolder]: For 87410/87462 co-relation queries the response was YES. [2021-03-25 12:17:49,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13505 conditions, 876 events. 323/876 cut-off events. For 87410/87462 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6579 event pairs, 19 based on Foata normal form. 5/881 useless extension candidates. Maximal degree in co-relation 13281. Up to 314 conditions per place. [2021-03-25 12:17:49,571 INFO L142 LiptonReduction]: Number of co-enabled transitions 714 [2021-03-25 12:17:49,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:49,597 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:49,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 210 [2021-03-25 12:17:49,597 INFO L480 AbstractCegarLoop]: Abstraction has has 455 places, 475 transitions, 12110 flow [2021-03-25 12:17:49,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.428571428571427) internal successors, (192), 7 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:49,597 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:49,597 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:49,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-03-25 12:17:49,597 INFO L428 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:49,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:49,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1762642636, now seen corresponding path program 3 times [2021-03-25 12:17:49,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:49,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632512123] [2021-03-25 12:17:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:49,603 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:49,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:49,608 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:49,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:49,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:49,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:49,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:49,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:49,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:49,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:49,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:49,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:49,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:49,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:17:49,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:49,659 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:17:49,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:17:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:49,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632512123] [2021-03-25 12:17:49,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:49,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:49,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868880108] [2021-03-25 12:17:49,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:49,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:49,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:49,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:49,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:49,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 475 transitions, 12110 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:49,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:49,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:49,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:50,133 INFO L129 PetriNetUnfolder]: 338/900 cut-off events. [2021-03-25 12:17:50,134 INFO L130 PetriNetUnfolder]: For 92484/92558 co-relation queries the response was YES. [2021-03-25 12:17:50,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14476 conditions, 900 events. 338/900 cut-off events. For 92484/92558 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6635 event pairs, 33 based on Foata normal form. 46/946 useless extension candidates. Maximal degree in co-relation 14260. Up to 695 conditions per place. [2021-03-25 12:17:50,148 INFO L132 encePairwiseOnDemand]: 105/122 looper letters, 399 selfloop transitions, 69 changer transitions 5/481 dead transitions. [2021-03-25 12:17:50,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 481 transitions, 13366 flow [2021-03-25 12:17:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:17:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:17:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 272 transitions. [2021-03-25 12:17:50,149 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2786885245901639 [2021-03-25 12:17:50,149 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 272 transitions. [2021-03-25 12:17:50,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 272 transitions. [2021-03-25 12:17:50,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:50,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 272 transitions. [2021-03-25 12:17:50,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:50,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:50,150 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 122.0) internal successors, (1098), 9 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:50,150 INFO L185 Difference]: Start difference. First operand has 455 places, 475 transitions, 12110 flow. Second operand 8 states and 272 transitions. [2021-03-25 12:17:50,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 481 transitions, 13366 flow [2021-03-25 12:17:50,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 481 transitions, 13187 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 12:17:50,644 INFO L241 Difference]: Finished difference. Result has 455 places, 472 transitions, 12017 flow [2021-03-25 12:17:50,645 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11933, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12017, PETRI_PLACES=455, PETRI_TRANSITIONS=472} [2021-03-25 12:17:50,645 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 408 predicate places. [2021-03-25 12:17:50,645 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:50,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 455 places, 472 transitions, 12017 flow [2021-03-25 12:17:50,645 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 455 places, 472 transitions, 12017 flow [2021-03-25 12:17:50,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 472 transitions, 12017 flow [2021-03-25 12:17:50,806 INFO L129 PetriNetUnfolder]: 320/874 cut-off events. [2021-03-25 12:17:50,807 INFO L130 PetriNetUnfolder]: For 88403/88469 co-relation queries the response was YES. [2021-03-25 12:17:50,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13370 conditions, 874 events. 320/874 cut-off events. For 88403/88469 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6623 event pairs, 19 based on Foata normal form. 5/879 useless extension candidates. Maximal degree in co-relation 13146. Up to 310 conditions per place. [2021-03-25 12:17:50,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 714 [2021-03-25 12:17:50,853 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:50,854 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:50,854 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-03-25 12:17:50,854 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 472 transitions, 12017 flow [2021-03-25 12:17:50,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:50,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:50,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:50,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-03-25 12:17:50,854 INFO L428 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:50,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:50,854 INFO L82 PathProgramCache]: Analyzing trace with hash 370950876, now seen corresponding path program 7 times [2021-03-25 12:17:50,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:50,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968522873] [2021-03-25 12:17:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:50,860 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:50,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:50,865 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:50,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:50,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:50,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:50,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:50,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:50,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:50,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:50,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:50,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:50,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:50,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:50,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:50,942 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:50,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:50,958 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:50,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:50,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968522873] [2021-03-25 12:17:50,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:50,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:17:50,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365551482] [2021-03-25 12:17:50,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:17:50,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:50,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:17:50,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:17:50,961 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:50,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 472 transitions, 12017 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:50,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:50,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:50,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:51,775 INFO L129 PetriNetUnfolder]: 355/947 cut-off events. [2021-03-25 12:17:51,775 INFO L130 PetriNetUnfolder]: For 104742/104816 co-relation queries the response was YES. [2021-03-25 12:17:51,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15694 conditions, 947 events. 355/947 cut-off events. For 104742/104816 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 7082 event pairs, 36 based on Foata normal form. 47/993 useless extension candidates. Maximal degree in co-relation 15478. Up to 722 conditions per place. [2021-03-25 12:17:51,790 INFO L132 encePairwiseOnDemand]: 106/122 looper letters, 421 selfloop transitions, 67 changer transitions 5/501 dead transitions. [2021-03-25 12:17:51,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 501 transitions, 14808 flow [2021-03-25 12:17:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 12:17:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 12:17:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 522 transitions. [2021-03-25 12:17:51,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25168756027000966 [2021-03-25 12:17:51,791 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 522 transitions. [2021-03-25 12:17:51,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 522 transitions. [2021-03-25 12:17:51,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:51,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 522 transitions. [2021-03-25 12:17:51,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 30.705882352941178) internal successors, (522), 17 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:51,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 122.0) internal successors, (2196), 18 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:51,792 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 122.0) internal successors, (2196), 18 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:51,792 INFO L185 Difference]: Start difference. First operand has 454 places, 472 transitions, 12017 flow. Second operand 17 states and 522 transitions. [2021-03-25 12:17:51,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 501 transitions, 14808 flow [2021-03-25 12:17:52,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 501 transitions, 14550 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-03-25 12:17:52,275 INFO L241 Difference]: Finished difference. Result has 465 places, 488 transitions, 12864 flow [2021-03-25 12:17:52,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=11791, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=12864, PETRI_PLACES=465, PETRI_TRANSITIONS=488} [2021-03-25 12:17:52,275 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 418 predicate places. [2021-03-25 12:17:52,275 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:52,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 488 transitions, 12864 flow [2021-03-25 12:17:52,275 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 488 transitions, 12864 flow [2021-03-25 12:17:52,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 461 places, 488 transitions, 12864 flow [2021-03-25 12:17:52,433 INFO L129 PetriNetUnfolder]: 334/910 cut-off events. [2021-03-25 12:17:52,433 INFO L130 PetriNetUnfolder]: For 101720/101784 co-relation queries the response was YES. [2021-03-25 12:17:52,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14463 conditions, 910 events. 334/910 cut-off events. For 101720/101784 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6915 event pairs, 20 based on Foata normal form. 13/923 useless extension candidates. Maximal degree in co-relation 14264. Up to 334 conditions per place. [2021-03-25 12:17:52,452 INFO L142 LiptonReduction]: Number of co-enabled transitions 732 [2021-03-25 12:17:52,478 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:52,478 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:52,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 203 [2021-03-25 12:17:52,478 INFO L480 AbstractCegarLoop]: Abstraction has has 461 places, 488 transitions, 12864 flow [2021-03-25 12:17:52,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:52,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:52,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:52,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-03-25 12:17:52,478 INFO L428 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:52,478 INFO L82 PathProgramCache]: Analyzing trace with hash 332965318, now seen corresponding path program 1 times [2021-03-25 12:17:52,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:52,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851392894] [2021-03-25 12:17:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:52,484 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:52,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:52,488 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:52,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:52,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:52,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:52,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:52,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:52,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:52,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:52,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:52,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:52,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:52,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:52,536 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:52,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:52,542 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:17:52,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:17:52,555 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:52,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:52,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:52,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851392894] [2021-03-25 12:17:52,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:52,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:17:52,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896257604] [2021-03-25 12:17:52,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:17:52,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:52,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:17:52,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:17:52,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:52,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 488 transitions, 12864 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:52,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:52,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:52,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:53,109 INFO L129 PetriNetUnfolder]: 355/955 cut-off events. [2021-03-25 12:17:53,109 INFO L130 PetriNetUnfolder]: For 108156/108236 co-relation queries the response was YES. [2021-03-25 12:17:53,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15865 conditions, 955 events. 355/955 cut-off events. For 108156/108236 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7185 event pairs, 33 based on Foata normal form. 51/1006 useless extension candidates. Maximal degree in co-relation 15663. Up to 679 conditions per place. [2021-03-25 12:17:53,124 INFO L132 encePairwiseOnDemand]: 106/122 looper letters, 387 selfloop transitions, 107 changer transitions 4/506 dead transitions. [2021-03-25 12:17:53,124 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 506 transitions, 14637 flow [2021-03-25 12:17:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:17:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:17:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2021-03-25 12:17:53,125 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26967213114754096 [2021-03-25 12:17:53,125 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 329 transitions. [2021-03-25 12:17:53,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 329 transitions. [2021-03-25 12:17:53,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:53,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 329 transitions. [2021-03-25 12:17:53,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:53,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:53,126 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 122.0) internal successors, (1342), 11 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:53,126 INFO L185 Difference]: Start difference. First operand has 461 places, 488 transitions, 12864 flow. Second operand 10 states and 329 transitions. [2021-03-25 12:17:53,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 506 transitions, 14637 flow [2021-03-25 12:17:53,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 506 transitions, 14118 flow, removed 244 selfloop flow, removed 6 redundant places. [2021-03-25 12:17:53,662 INFO L241 Difference]: Finished difference. Result has 468 places, 493 transitions, 12953 flow [2021-03-25 12:17:53,662 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=12357, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12953, PETRI_PLACES=468, PETRI_TRANSITIONS=493} [2021-03-25 12:17:53,662 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 421 predicate places. [2021-03-25 12:17:53,663 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:53,663 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 468 places, 493 transitions, 12953 flow [2021-03-25 12:17:53,663 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 468 places, 493 transitions, 12953 flow [2021-03-25 12:17:53,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 467 places, 493 transitions, 12953 flow [2021-03-25 12:17:53,841 INFO L129 PetriNetUnfolder]: 337/934 cut-off events. [2021-03-25 12:17:53,841 INFO L130 PetriNetUnfolder]: For 98533/98551 co-relation queries the response was YES. [2021-03-25 12:17:53,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14602 conditions, 934 events. 337/934 cut-off events. For 98533/98551 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7306 event pairs, 25 based on Foata normal form. 3/935 useless extension candidates. Maximal degree in co-relation 14401. Up to 334 conditions per place. [2021-03-25 12:17:53,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 748 [2021-03-25 12:17:53,891 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:53,891 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:53,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 228 [2021-03-25 12:17:53,891 INFO L480 AbstractCegarLoop]: Abstraction has has 467 places, 493 transitions, 12953 flow [2021-03-25 12:17:53,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:53,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:53,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:53,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-03-25 12:17:53,892 INFO L428 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:53,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:53,892 INFO L82 PathProgramCache]: Analyzing trace with hash -241950274, now seen corresponding path program 2 times [2021-03-25 12:17:53,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:53,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342197844] [2021-03-25 12:17:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:53,914 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:53,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:53,920 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:53,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:53,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:53,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:53,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:53,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:53,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:53,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:53,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:53,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:53,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:53,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:17:53,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:53,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:53,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:54,015 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:54,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:54,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342197844] [2021-03-25 12:17:54,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:54,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:54,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327925241] [2021-03-25 12:17:54,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:54,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:54,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:54,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:54,020 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:54,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 493 transitions, 12953 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:54,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:54,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:54,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:54,701 INFO L129 PetriNetUnfolder]: 355/966 cut-off events. [2021-03-25 12:17:54,701 INFO L130 PetriNetUnfolder]: For 106108/106188 co-relation queries the response was YES. [2021-03-25 12:17:54,712 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15814 conditions, 966 events. 355/966 cut-off events. For 106108/106188 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7344 event pairs, 21 based on Foata normal form. 62/1028 useless extension candidates. Maximal degree in co-relation 15610. Up to 672 conditions per place. [2021-03-25 12:17:54,717 INFO L132 encePairwiseOnDemand]: 104/122 looper letters, 380 selfloop transitions, 112 changer transitions 10/510 dead transitions. [2021-03-25 12:17:54,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 510 transitions, 14814 flow [2021-03-25 12:17:54,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:17:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:17:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 413 transitions. [2021-03-25 12:17:54,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2604035308953342 [2021-03-25 12:17:54,718 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 413 transitions. [2021-03-25 12:17:54,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 413 transitions. [2021-03-25 12:17:54,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:54,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 413 transitions. [2021-03-25 12:17:54,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.76923076923077) internal successors, (413), 13 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:54,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 122.0) internal successors, (1708), 14 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:54,719 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 122.0) internal successors, (1708), 14 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:54,719 INFO L185 Difference]: Start difference. First operand has 467 places, 493 transitions, 12953 flow. Second operand 13 states and 413 transitions. [2021-03-25 12:17:54,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 510 transitions, 14814 flow [2021-03-25 12:17:55,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 510 transitions, 14507 flow, removed 136 selfloop flow, removed 3 redundant places. [2021-03-25 12:17:55,289 INFO L241 Difference]: Finished difference. Result has 481 places, 491 transitions, 13032 flow [2021-03-25 12:17:55,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=12770, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13032, PETRI_PLACES=481, PETRI_TRANSITIONS=491} [2021-03-25 12:17:55,290 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 434 predicate places. [2021-03-25 12:17:55,290 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:55,290 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 481 places, 491 transitions, 13032 flow [2021-03-25 12:17:55,290 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 481 places, 491 transitions, 13032 flow [2021-03-25 12:17:55,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 491 transitions, 13032 flow [2021-03-25 12:17:55,463 INFO L129 PetriNetUnfolder]: 334/917 cut-off events. [2021-03-25 12:17:55,463 INFO L130 PetriNetUnfolder]: For 102677/102715 co-relation queries the response was YES. [2021-03-25 12:17:55,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14641 conditions, 917 events. 334/917 cut-off events. For 102677/102715 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7074 event pairs, 20 based on Foata normal form. 9/926 useless extension candidates. Maximal degree in co-relation 14435. Up to 327 conditions per place. [2021-03-25 12:17:55,485 INFO L142 LiptonReduction]: Number of co-enabled transitions 744 [2021-03-25 12:17:55,512 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:55,512 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:55,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 222 [2021-03-25 12:17:55,512 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 491 transitions, 13032 flow [2021-03-25 12:17:55,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:55,512 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:55,512 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:55,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-03-25 12:17:55,513 INFO L428 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:55,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:55,513 INFO L82 PathProgramCache]: Analyzing trace with hash -588445658, now seen corresponding path program 3 times [2021-03-25 12:17:55,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:55,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476194843] [2021-03-25 12:17:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:55,526 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:55,531 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:55,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:55,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:55,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:55,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:55,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:55,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:55,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:55,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:55,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:55,608 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:55,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:55,628 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:55,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476194843] [2021-03-25 12:17:55,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:55,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:55,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976051473] [2021-03-25 12:17:55,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:55,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:55,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:55,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:55,633 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:55,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 491 transitions, 13032 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:55,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:55,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:55,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:56,372 INFO L129 PetriNetUnfolder]: 355/980 cut-off events. [2021-03-25 12:17:56,372 INFO L130 PetriNetUnfolder]: For 110079/110159 co-relation queries the response was YES. [2021-03-25 12:17:56,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16182 conditions, 980 events. 355/980 cut-off events. For 110079/110159 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7574 event pairs, 24 based on Foata normal form. 62/1042 useless extension candidates. Maximal degree in co-relation 15973. Up to 644 conditions per place. [2021-03-25 12:17:56,397 INFO L132 encePairwiseOnDemand]: 104/122 looper letters, 366 selfloop transitions, 135 changer transitions 5/514 dead transitions. [2021-03-25 12:17:56,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 514 transitions, 15242 flow [2021-03-25 12:17:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:17:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:17:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 363 transitions. [2021-03-25 12:17:56,399 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27049180327868855 [2021-03-25 12:17:56,399 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 363 transitions. [2021-03-25 12:17:56,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 363 transitions. [2021-03-25 12:17:56,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:56,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 363 transitions. [2021-03-25 12:17:56,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:56,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:56,400 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 122.0) internal successors, (1464), 12 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:56,400 INFO L185 Difference]: Start difference. First operand has 477 places, 491 transitions, 13032 flow. Second operand 11 states and 363 transitions. [2021-03-25 12:17:56,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 514 transitions, 15242 flow [2021-03-25 12:17:57,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 514 transitions, 15040 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 12:17:57,249 INFO L241 Difference]: Finished difference. Result has 479 places, 498 transitions, 13672 flow [2021-03-25 12:17:57,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=12840, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13672, PETRI_PLACES=479, PETRI_TRANSITIONS=498} [2021-03-25 12:17:57,250 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 432 predicate places. [2021-03-25 12:17:57,250 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:57,250 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 498 transitions, 13672 flow [2021-03-25 12:17:57,250 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 498 transitions, 13672 flow [2021-03-25 12:17:57,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 498 transitions, 13672 flow [2021-03-25 12:17:57,506 INFO L129 PetriNetUnfolder]: 334/931 cut-off events. [2021-03-25 12:17:57,506 INFO L130 PetriNetUnfolder]: For 112108/112201 co-relation queries the response was YES. [2021-03-25 12:17:57,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15057 conditions, 931 events. 334/931 cut-off events. For 112108/112201 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7303 event pairs, 21 based on Foata normal form. 13/943 useless extension candidates. Maximal degree in co-relation 14824. Up to 330 conditions per place. [2021-03-25 12:17:57,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 762 [2021-03-25 12:17:57,582 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:57,582 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:57,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 332 [2021-03-25 12:17:57,607 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 498 transitions, 13672 flow [2021-03-25 12:17:57,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:57,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:57,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:57,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-03-25 12:17:57,608 INFO L428 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:57,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:57,608 INFO L82 PathProgramCache]: Analyzing trace with hash 66671000, now seen corresponding path program 4 times [2021-03-25 12:17:57,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:57,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335936667] [2021-03-25 12:17:57,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:57,616 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:57,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:57,622 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:57,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:57,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:57,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:57,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:57,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:57,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:57,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:57,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:57,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:57,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:57,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:57,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:57,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:57,710 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:17:57,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:57,716 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:57,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:57,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:57,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335936667] [2021-03-25 12:17:57,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:57,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:17:57,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016258308] [2021-03-25 12:17:57,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:17:57,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:57,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:17:57,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:17:57,720 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:57,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 498 transitions, 13672 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:57,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:57,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:57,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:17:58,426 INFO L129 PetriNetUnfolder]: 355/972 cut-off events. [2021-03-25 12:17:58,427 INFO L130 PetriNetUnfolder]: For 114763/114850 co-relation queries the response was YES. [2021-03-25 12:17:58,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16359 conditions, 972 events. 355/972 cut-off events. For 114763/114850 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7446 event pairs, 34 based on Foata normal form. 58/1030 useless extension candidates. Maximal degree in co-relation 16134. Up to 706 conditions per place. [2021-03-25 12:17:58,443 INFO L132 encePairwiseOnDemand]: 106/122 looper letters, 403 selfloop transitions, 95 changer transitions 5/511 dead transitions. [2021-03-25 12:17:58,443 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 511 transitions, 15083 flow [2021-03-25 12:17:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:17:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:17:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 297 transitions. [2021-03-25 12:17:58,444 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27049180327868855 [2021-03-25 12:17:58,444 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 297 transitions. [2021-03-25 12:17:58,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 297 transitions. [2021-03-25 12:17:58,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:17:58,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 297 transitions. [2021-03-25 12:17:58,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:58,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 122.0) internal successors, (1220), 10 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:58,445 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 122.0) internal successors, (1220), 10 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:58,445 INFO L185 Difference]: Start difference. First operand has 478 places, 498 transitions, 13672 flow. Second operand 9 states and 297 transitions. [2021-03-25 12:17:58,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 511 transitions, 15083 flow [2021-03-25 12:17:59,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 511 transitions, 14565 flow, removed 194 selfloop flow, removed 5 redundant places. [2021-03-25 12:17:59,073 INFO L241 Difference]: Finished difference. Result has 484 places, 501 transitions, 13606 flow [2021-03-25 12:17:59,073 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=13158, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13606, PETRI_PLACES=484, PETRI_TRANSITIONS=501} [2021-03-25 12:17:59,073 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 437 predicate places. [2021-03-25 12:17:59,073 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:17:59,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 484 places, 501 transitions, 13606 flow [2021-03-25 12:17:59,073 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 484 places, 501 transitions, 13606 flow [2021-03-25 12:17:59,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 483 places, 501 transitions, 13606 flow [2021-03-25 12:17:59,256 INFO L129 PetriNetUnfolder]: 335/951 cut-off events. [2021-03-25 12:17:59,256 INFO L130 PetriNetUnfolder]: For 103866/103868 co-relation queries the response was YES. [2021-03-25 12:17:59,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15179 conditions, 951 events. 335/951 cut-off events. For 103866/103868 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 7564 event pairs, 25 based on Foata normal form. 1/950 useless extension candidates. Maximal degree in co-relation 14943. Up to 333 conditions per place. [2021-03-25 12:17:59,279 INFO L142 LiptonReduction]: Number of co-enabled transitions 774 [2021-03-25 12:17:59,307 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:17:59,307 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:17:59,307 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 234 [2021-03-25 12:17:59,307 INFO L480 AbstractCegarLoop]: Abstraction has has 483 places, 501 transitions, 13606 flow [2021-03-25 12:17:59,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:59,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:17:59,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:17:59,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-03-25 12:17:59,308 INFO L428 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:17:59,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:17:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1096939310, now seen corresponding path program 8 times [2021-03-25 12:17:59,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:17:59,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855288718] [2021-03-25 12:17:59,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:17:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:17:59,313 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:17:59,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:17:59,318 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:17:59,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:17:59,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:59,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:59,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:59,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:59,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:59,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:59,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:59,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:59,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:17:59,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:17:59,371 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:59,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:59,384 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:17:59,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:17:59,399 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:17:59,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:17:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:17:59,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855288718] [2021-03-25 12:17:59,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:17:59,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:17:59,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972490534] [2021-03-25 12:17:59,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:17:59,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:17:59,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:17:59,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:17:59,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 122 [2021-03-25 12:17:59,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 501 transitions, 13606 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:17:59,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:17:59,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 122 [2021-03-25 12:17:59,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:00,017 INFO L129 PetriNetUnfolder]: 354/981 cut-off events. [2021-03-25 12:18:00,017 INFO L130 PetriNetUnfolder]: For 110985/111065 co-relation queries the response was YES. [2021-03-25 12:18:00,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16279 conditions, 981 events. 354/981 cut-off events. For 110985/111065 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7600 event pairs, 39 based on Foata normal form. 41/1021 useless extension candidates. Maximal degree in co-relation 16051. Up to 766 conditions per place. [2021-03-25 12:18:00,034 INFO L132 encePairwiseOnDemand]: 107/122 looper letters, 456 selfloop transitions, 46 changer transitions 2/512 dead transitions. [2021-03-25 12:18:00,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 512 transitions, 15145 flow [2021-03-25 12:18:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:18:00,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:18:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 422 transitions. [2021-03-25 12:18:00,035 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24707259953161592 [2021-03-25 12:18:00,035 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 422 transitions. [2021-03-25 12:18:00,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 422 transitions. [2021-03-25 12:18:00,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:00,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 422 transitions. [2021-03-25 12:18:00,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.142857142857142) internal successors, (422), 14 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:00,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 122.0) internal successors, (1830), 15 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:00,036 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 122.0) internal successors, (1830), 15 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:00,036 INFO L185 Difference]: Start difference. First operand has 483 places, 501 transitions, 13606 flow. Second operand 14 states and 422 transitions. [2021-03-25 12:18:00,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 512 transitions, 15145 flow [2021-03-25 12:18:00,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 512 transitions, 14814 flow, removed 91 selfloop flow, removed 6 redundant places. [2021-03-25 12:18:00,655 INFO L241 Difference]: Finished difference. Result has 494 places, 508 transitions, 13789 flow [2021-03-25 12:18:00,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=13275, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13789, PETRI_PLACES=494, PETRI_TRANSITIONS=508} [2021-03-25 12:18:00,655 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 447 predicate places. [2021-03-25 12:18:00,655 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:00,655 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 494 places, 508 transitions, 13789 flow [2021-03-25 12:18:00,655 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 494 places, 508 transitions, 13789 flow [2021-03-25 12:18:00,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 493 places, 508 transitions, 13789 flow [2021-03-25 12:18:00,845 INFO L129 PetriNetUnfolder]: 332/929 cut-off events. [2021-03-25 12:18:00,845 INFO L130 PetriNetUnfolder]: For 106730/106756 co-relation queries the response was YES. [2021-03-25 12:18:00,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14774 conditions, 929 events. 332/929 cut-off events. For 106730/106756 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7306 event pairs, 19 based on Foata normal form. 11/939 useless extension candidates. Maximal degree in co-relation 14536. Up to 325 conditions per place. [2021-03-25 12:18:00,868 INFO L142 LiptonReduction]: Number of co-enabled transitions 774 [2021-03-25 12:18:00,982 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:00,982 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:18:00,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 327 [2021-03-25 12:18:00,982 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 508 transitions, 13914 flow [2021-03-25 12:18:00,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:00,982 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:00,982 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:00,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-03-25 12:18:00,982 INFO L428 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:00,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1921713312, now seen corresponding path program 9 times [2021-03-25 12:18:00,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:00,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062829705] [2021-03-25 12:18:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:00,988 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:00,993 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:00,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:00,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:01,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:01,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:01,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:01,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:01,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:01,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:01,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:01,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:01,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:01,045 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:01,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:01,058 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:01,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:01,073 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:01,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:01,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:01,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062829705] [2021-03-25 12:18:01,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:01,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:18:01,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65603308] [2021-03-25 12:18:01,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:18:01,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:01,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:18:01,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:18:01,076 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:01,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 508 transitions, 13914 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:01,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:01,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:01,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:01,828 INFO L129 PetriNetUnfolder]: 378/1047 cut-off events. [2021-03-25 12:18:01,829 INFO L130 PetriNetUnfolder]: For 130738/130818 co-relation queries the response was YES. [2021-03-25 12:18:01,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17708 conditions, 1047 events. 378/1047 cut-off events. For 130738/130818 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 8262 event pairs, 22 based on Foata normal form. 62/1109 useless extension candidates. Maximal degree in co-relation 17478. Up to 688 conditions per place. [2021-03-25 12:18:01,846 INFO L132 encePairwiseOnDemand]: 104/124 looper letters, 381 selfloop transitions, 160 changer transitions 4/553 dead transitions. [2021-03-25 12:18:01,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 553 transitions, 17167 flow [2021-03-25 12:18:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:18:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:18:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 452 transitions. [2021-03-25 12:18:01,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26036866359447003 [2021-03-25 12:18:01,848 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 452 transitions. [2021-03-25 12:18:01,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 452 transitions. [2021-03-25 12:18:01,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:01,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 452 transitions. [2021-03-25 12:18:01,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 32.285714285714285) internal successors, (452), 14 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:01,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:01,849 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 124.0) internal successors, (1860), 15 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:01,849 INFO L185 Difference]: Start difference. First operand has 493 places, 508 transitions, 13914 flow. Second operand 14 states and 452 transitions. [2021-03-25 12:18:01,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 553 transitions, 17167 flow [2021-03-25 12:18:02,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 553 transitions, 16524 flow, removed 286 selfloop flow, removed 8 redundant places. [2021-03-25 12:18:02,579 INFO L241 Difference]: Finished difference. Result has 504 places, 540 transitions, 15112 flow [2021-03-25 12:18:02,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=13279, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15112, PETRI_PLACES=504, PETRI_TRANSITIONS=540} [2021-03-25 12:18:02,579 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 457 predicate places. [2021-03-25 12:18:02,579 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:02,579 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 540 transitions, 15112 flow [2021-03-25 12:18:02,579 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 540 transitions, 15112 flow [2021-03-25 12:18:02,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 504 places, 540 transitions, 15112 flow [2021-03-25 12:18:02,782 INFO L129 PetriNetUnfolder]: 356/1001 cut-off events. [2021-03-25 12:18:02,782 INFO L130 PetriNetUnfolder]: For 123544/123548 co-relation queries the response was YES. [2021-03-25 12:18:02,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16558 conditions, 1001 events. 356/1001 cut-off events. For 123544/123548 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8027 event pairs, 19 based on Foata normal form. 3/1002 useless extension candidates. Maximal degree in co-relation 16315. Up to 354 conditions per place. [2021-03-25 12:18:02,807 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 12:18:02,840 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:02,840 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:02,841 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 12:18:02,841 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 540 transitions, 15112 flow [2021-03-25 12:18:02,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:02,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:02,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:02,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-03-25 12:18:02,841 INFO L428 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:02,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:02,841 INFO L82 PathProgramCache]: Analyzing trace with hash 645821696, now seen corresponding path program 1 times [2021-03-25 12:18:02,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:02,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161267619] [2021-03-25 12:18:02,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:02,847 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:02,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:02,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:02,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:02,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:02,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:02,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:02,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:02,877 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:18:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:18:02,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:02,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:18:02,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:02,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:02,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:02,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:18:02,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:18:02,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:18:02,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:02,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161267619] [2021-03-25 12:18:02,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:02,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:02,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478770585] [2021-03-25 12:18:02,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:02,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:02,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:02,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:02,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:02,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 540 transitions, 15112 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:02,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:02,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:02,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:03,527 INFO L129 PetriNetUnfolder]: 375/1040 cut-off events. [2021-03-25 12:18:03,527 INFO L130 PetriNetUnfolder]: For 128963/129043 co-relation queries the response was YES. [2021-03-25 12:18:03,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17759 conditions, 1040 events. 375/1040 cut-off events. For 128963/129043 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8191 event pairs, 42 based on Foata normal form. 41/1080 useless extension candidates. Maximal degree in co-relation 17524. Up to 819 conditions per place. [2021-03-25 12:18:03,546 INFO L132 encePairwiseOnDemand]: 108/124 looper letters, 498 selfloop transitions, 34 changer transitions 4/544 dead transitions. [2021-03-25 12:18:03,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 544 transitions, 16296 flow [2021-03-25 12:18:03,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:03,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:03,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 336 transitions. [2021-03-25 12:18:03,547 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24633431085043989 [2021-03-25 12:18:03,547 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 336 transitions. [2021-03-25 12:18:03,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 336 transitions. [2021-03-25 12:18:03,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:03,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 336 transitions. [2021-03-25 12:18:03,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.545454545454547) internal successors, (336), 11 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:03,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:03,548 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:03,548 INFO L185 Difference]: Start difference. First operand has 504 places, 540 transitions, 15112 flow. Second operand 11 states and 336 transitions. [2021-03-25 12:18:03,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 544 transitions, 16296 flow [2021-03-25 12:18:04,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 544 transitions, 15691 flow, removed 283 selfloop flow, removed 2 redundant places. [2021-03-25 12:18:04,287 INFO L241 Difference]: Finished difference. Result has 514 places, 538 transitions, 14556 flow [2021-03-25 12:18:04,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14540, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14556, PETRI_PLACES=514, PETRI_TRANSITIONS=538} [2021-03-25 12:18:04,287 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 467 predicate places. [2021-03-25 12:18:04,287 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:04,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 538 transitions, 14556 flow [2021-03-25 12:18:04,287 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 538 transitions, 14556 flow [2021-03-25 12:18:04,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 538 transitions, 14556 flow [2021-03-25 12:18:04,491 INFO L129 PetriNetUnfolder]: 355/1001 cut-off events. [2021-03-25 12:18:04,492 INFO L130 PetriNetUnfolder]: For 116385/116423 co-relation queries the response was YES. [2021-03-25 12:18:04,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15992 conditions, 1001 events. 355/1001 cut-off events. For 116385/116423 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8015 event pairs, 28 based on Foata normal form. 9/1007 useless extension candidates. Maximal degree in co-relation 15774. Up to 346 conditions per place. [2021-03-25 12:18:04,516 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 12:18:04,546 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:04,546 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:04,546 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-25 12:18:04,546 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 538 transitions, 14556 flow [2021-03-25 12:18:04,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:04,546 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:04,546 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:04,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-03-25 12:18:04,547 INFO L428 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:04,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:04,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1132680618, now seen corresponding path program 1 times [2021-03-25 12:18:04,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:04,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169664864] [2021-03-25 12:18:04,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:04,552 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:04,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:04,557 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:04,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:04,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:04,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:04,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:04,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:04,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:04,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:04,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:04,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:04,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:18:04,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:04,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:04,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:18:04,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:18:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:04,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169664864] [2021-03-25 12:18:04,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:04,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:04,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21366079] [2021-03-25 12:18:04,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:04,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:04,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:04,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:04,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:04,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 538 transitions, 14556 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:04,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:04,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:04,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:05,194 INFO L129 PetriNetUnfolder]: 387/1055 cut-off events. [2021-03-25 12:18:05,194 INFO L130 PetriNetUnfolder]: For 125978/126058 co-relation queries the response was YES. [2021-03-25 12:18:05,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17729 conditions, 1055 events. 387/1055 cut-off events. For 125978/126058 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8238 event pairs, 43 based on Foata normal form. 41/1095 useless extension candidates. Maximal degree in co-relation 17508. Up to 827 conditions per place. [2021-03-25 12:18:05,213 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 496 selfloop transitions, 46 changer transitions 2/552 dead transitions. [2021-03-25 12:18:05,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 552 transitions, 16171 flow [2021-03-25 12:18:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 318 transitions. [2021-03-25 12:18:05,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2564516129032258 [2021-03-25 12:18:05,214 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 318 transitions. [2021-03-25 12:18:05,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 318 transitions. [2021-03-25 12:18:05,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:05,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 318 transitions. [2021-03-25 12:18:05,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.8) internal successors, (318), 10 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:05,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:05,215 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:05,215 INFO L185 Difference]: Start difference. First operand has 511 places, 538 transitions, 14556 flow. Second operand 10 states and 318 transitions. [2021-03-25 12:18:05,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 552 transitions, 16171 flow [2021-03-25 12:18:05,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 552 transitions, 16084 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-25 12:18:05,923 INFO L241 Difference]: Finished difference. Result has 512 places, 546 transitions, 14953 flow [2021-03-25 12:18:05,924 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14469, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14953, PETRI_PLACES=512, PETRI_TRANSITIONS=546} [2021-03-25 12:18:05,924 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 465 predicate places. [2021-03-25 12:18:05,924 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:05,924 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 546 transitions, 14953 flow [2021-03-25 12:18:05,924 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 546 transitions, 14953 flow [2021-03-25 12:18:05,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 512 places, 546 transitions, 14953 flow [2021-03-25 12:18:06,133 INFO L129 PetriNetUnfolder]: 368/1029 cut-off events. [2021-03-25 12:18:06,133 INFO L130 PetriNetUnfolder]: For 118543/118600 co-relation queries the response was YES. [2021-03-25 12:18:06,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16546 conditions, 1029 events. 368/1029 cut-off events. For 118543/118600 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 8322 event pairs, 33 based on Foata normal form. 7/1031 useless extension candidates. Maximal degree in co-relation 16300. Up to 361 conditions per place. [2021-03-25 12:18:06,160 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 12:18:06,193 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:06,193 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:06,193 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 269 [2021-03-25 12:18:06,193 INFO L480 AbstractCegarLoop]: Abstraction has has 512 places, 546 transitions, 14953 flow [2021-03-25 12:18:06,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:06,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:06,193 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:06,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-03-25 12:18:06,194 INFO L428 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:06,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1133275264, now seen corresponding path program 2 times [2021-03-25 12:18:06,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:06,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256740557] [2021-03-25 12:18:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:06,199 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:06,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:06,204 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:06,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:06,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:06,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:06,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:06,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:06,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:06,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:06,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:06,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:06,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:06,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:18:06,258 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:18:06,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:06,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:18:06,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:18:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:06,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256740557] [2021-03-25 12:18:06,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:06,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:06,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339664966] [2021-03-25 12:18:06,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:06,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:06,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:06,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:06,273 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:06,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 546 transitions, 14953 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:06,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:06,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:06,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:06,964 INFO L129 PetriNetUnfolder]: 386/1051 cut-off events. [2021-03-25 12:18:06,964 INFO L130 PetriNetUnfolder]: For 125643/125723 co-relation queries the response was YES. [2021-03-25 12:18:06,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17773 conditions, 1051 events. 386/1051 cut-off events. For 125643/125723 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8214 event pairs, 37 based on Foata normal form. 41/1091 useless extension candidates. Maximal degree in co-relation 17535. Up to 791 conditions per place. [2021-03-25 12:18:06,981 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 448 selfloop transitions, 92 changer transitions 3/551 dead transitions. [2021-03-25 12:18:06,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 551 transitions, 16287 flow [2021-03-25 12:18:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:06,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 350 transitions. [2021-03-25 12:18:06,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2565982404692082 [2021-03-25 12:18:06,982 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 350 transitions. [2021-03-25 12:18:06,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 350 transitions. [2021-03-25 12:18:06,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:06,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 350 transitions. [2021-03-25 12:18:06,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:06,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:06,983 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:06,983 INFO L185 Difference]: Start difference. First operand has 512 places, 546 transitions, 14953 flow. Second operand 11 states and 350 transitions. [2021-03-25 12:18:06,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 551 transitions, 16287 flow [2021-03-25 12:18:07,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 551 transitions, 16223 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 12:18:07,670 INFO L241 Difference]: Finished difference. Result has 515 places, 543 transitions, 15103 flow [2021-03-25 12:18:07,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14889, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15103, PETRI_PLACES=515, PETRI_TRANSITIONS=543} [2021-03-25 12:18:07,671 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:18:07,671 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:07,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 543 transitions, 15103 flow [2021-03-25 12:18:07,671 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 543 transitions, 15103 flow [2021-03-25 12:18:07,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 512 places, 543 transitions, 15103 flow [2021-03-25 12:18:07,876 INFO L129 PetriNetUnfolder]: 366/1017 cut-off events. [2021-03-25 12:18:07,877 INFO L130 PetriNetUnfolder]: For 122122/122214 co-relation queries the response was YES. [2021-03-25 12:18:07,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16583 conditions, 1017 events. 366/1017 cut-off events. For 122122/122214 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8137 event pairs, 28 based on Foata normal form. 9/1021 useless extension candidates. Maximal degree in co-relation 16336. Up to 361 conditions per place. [2021-03-25 12:18:07,902 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 12:18:07,935 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:07,935 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:07,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-03-25 12:18:07,935 INFO L480 AbstractCegarLoop]: Abstraction has has 512 places, 543 transitions, 15103 flow [2021-03-25 12:18:07,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:07,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:07,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:07,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-03-25 12:18:07,935 INFO L428 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:07,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:07,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1085478026, now seen corresponding path program 5 times [2021-03-25 12:18:07,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:07,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201912639] [2021-03-25 12:18:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:07,943 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:07,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:07,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:07,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:07,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:07,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:07,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:07,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:07,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:07,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:07,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:07,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:07,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:07,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:07,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:07,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:08,010 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:08,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:08,014 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:08,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:08,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201912639] [2021-03-25 12:18:08,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:08,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:08,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488422178] [2021-03-25 12:18:08,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:08,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:08,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:08,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:08,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:08,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 543 transitions, 15103 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:08,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:08,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:08,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:08,672 INFO L129 PetriNetUnfolder]: 386/1053 cut-off events. [2021-03-25 12:18:08,673 INFO L130 PetriNetUnfolder]: For 128748/128828 co-relation queries the response was YES. [2021-03-25 12:18:08,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17989 conditions, 1053 events. 386/1053 cut-off events. For 128748/128828 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8227 event pairs, 32 based on Foata normal form. 51/1104 useless extension candidates. Maximal degree in co-relation 17750. Up to 769 conditions per place. [2021-03-25 12:18:08,691 INFO L132 encePairwiseOnDemand]: 108/124 looper letters, 443 selfloop transitions, 85 changer transitions 19/555 dead transitions. [2021-03-25 12:18:08,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 555 transitions, 16525 flow [2021-03-25 12:18:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:08,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 351 transitions. [2021-03-25 12:18:08,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25733137829912023 [2021-03-25 12:18:08,693 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 351 transitions. [2021-03-25 12:18:08,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 351 transitions. [2021-03-25 12:18:08,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:08,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 351 transitions. [2021-03-25 12:18:08,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:08,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:08,694 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:08,694 INFO L185 Difference]: Start difference. First operand has 512 places, 543 transitions, 15103 flow. Second operand 11 states and 351 transitions. [2021-03-25 12:18:08,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 555 transitions, 16525 flow [2021-03-25 12:18:09,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 555 transitions, 16346 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:09,345 INFO L241 Difference]: Finished difference. Result has 515 places, 531 transitions, 14782 flow [2021-03-25 12:18:09,345 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14924, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14782, PETRI_PLACES=515, PETRI_TRANSITIONS=531} [2021-03-25 12:18:09,345 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:18:09,345 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:09,345 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 531 transitions, 14782 flow [2021-03-25 12:18:09,345 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 531 transitions, 14782 flow [2021-03-25 12:18:09,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 531 transitions, 14782 flow [2021-03-25 12:18:09,539 INFO L129 PetriNetUnfolder]: 362/1002 cut-off events. [2021-03-25 12:18:09,539 INFO L130 PetriNetUnfolder]: For 119228/119283 co-relation queries the response was YES. [2021-03-25 12:18:09,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16383 conditions, 1002 events. 362/1002 cut-off events. For 119228/119283 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8015 event pairs, 26 based on Foata normal form. 2/999 useless extension candidates. Maximal degree in co-relation 16165. Up to 355 conditions per place. [2021-03-25 12:18:09,562 INFO L142 LiptonReduction]: Number of co-enabled transitions 796 [2021-03-25 12:18:09,593 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:09,593 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:09,593 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 12:18:09,593 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 531 transitions, 14782 flow [2021-03-25 12:18:09,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:09,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:09,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:09,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-03-25 12:18:09,593 INFO L428 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:09,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:09,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1986988640, now seen corresponding path program 6 times [2021-03-25 12:18:09,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:09,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604062278] [2021-03-25 12:18:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:09,616 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:09,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:09,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:09,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:09,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:09,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:09,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:09,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:09,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:09,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:09,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:09,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:09,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:09,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:09,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:09,694 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:09,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:09,708 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:09,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:09,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:09,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604062278] [2021-03-25 12:18:09,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:09,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:18:09,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781097224] [2021-03-25 12:18:09,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:18:09,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:09,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:18:09,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:18:09,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:09,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 531 transitions, 14782 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:09,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:09,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:09,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:10,375 INFO L129 PetriNetUnfolder]: 380/1027 cut-off events. [2021-03-25 12:18:10,375 INFO L130 PetriNetUnfolder]: For 129210/129290 co-relation queries the response was YES. [2021-03-25 12:18:10,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17600 conditions, 1027 events. 380/1027 cut-off events. For 129210/129290 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7893 event pairs, 34 based on Foata normal form. 51/1078 useless extension candidates. Maximal degree in co-relation 17379. Up to 750 conditions per place. [2021-03-25 12:18:10,393 INFO L132 encePairwiseOnDemand]: 108/124 looper letters, 433 selfloop transitions, 89 changer transitions 12/542 dead transitions. [2021-03-25 12:18:10,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 542 transitions, 16033 flow [2021-03-25 12:18:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 352 transitions. [2021-03-25 12:18:10,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25806451612903225 [2021-03-25 12:18:10,395 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 352 transitions. [2021-03-25 12:18:10,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 352 transitions. [2021-03-25 12:18:10,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:10,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 352 transitions. [2021-03-25 12:18:10,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.0) internal successors, (352), 11 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:10,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:10,396 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:10,396 INFO L185 Difference]: Start difference. First operand has 508 places, 531 transitions, 14782 flow. Second operand 11 states and 352 transitions. [2021-03-25 12:18:10,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 542 transitions, 16033 flow [2021-03-25 12:18:11,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 542 transitions, 15787 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 12:18:11,140 INFO L241 Difference]: Finished difference. Result has 510 places, 523 transitions, 14503 flow [2021-03-25 12:18:11,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14536, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14503, PETRI_PLACES=510, PETRI_TRANSITIONS=523} [2021-03-25 12:18:11,140 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 463 predicate places. [2021-03-25 12:18:11,140 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:11,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 510 places, 523 transitions, 14503 flow [2021-03-25 12:18:11,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 510 places, 523 transitions, 14503 flow [2021-03-25 12:18:11,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 506 places, 523 transitions, 14503 flow [2021-03-25 12:18:11,333 INFO L129 PetriNetUnfolder]: 360/993 cut-off events. [2021-03-25 12:18:11,333 INFO L130 PetriNetUnfolder]: For 118722/118775 co-relation queries the response was YES. [2021-03-25 12:18:11,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16293 conditions, 993 events. 360/993 cut-off events. For 118722/118775 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7871 event pairs, 27 based on Foata normal form. 3/991 useless extension candidates. Maximal degree in co-relation 16075. Up to 355 conditions per place. [2021-03-25 12:18:11,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-25 12:18:11,386 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:11,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:11,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-03-25 12:18:11,386 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 523 transitions, 14503 flow [2021-03-25 12:18:11,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:11,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:11,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:11,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-03-25 12:18:11,386 INFO L428 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:11,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:11,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1302794380, now seen corresponding path program 10 times [2021-03-25 12:18:11,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:11,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950768714] [2021-03-25 12:18:11,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:11,392 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:11,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:11,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:11,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:11,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:11,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:11,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:11,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:11,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:11,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:11,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:11,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:11,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:11,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:11,458 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:11,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:11,472 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:11,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:11,488 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:11,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:11,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950768714] [2021-03-25 12:18:11,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:11,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:18:11,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79309877] [2021-03-25 12:18:11,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:18:11,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:11,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:18:11,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:18:11,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:11,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 523 transitions, 14503 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:11,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:11,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:11,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:12,285 INFO L129 PetriNetUnfolder]: 381/1040 cut-off events. [2021-03-25 12:18:12,286 INFO L130 PetriNetUnfolder]: For 135741/135809 co-relation queries the response was YES. [2021-03-25 12:18:12,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17913 conditions, 1040 events. 381/1040 cut-off events. For 135741/135809 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8066 event pairs, 24 based on Foata normal form. 59/1099 useless extension candidates. Maximal degree in co-relation 17692. Up to 646 conditions per place. [2021-03-25 12:18:12,304 INFO L132 encePairwiseOnDemand]: 106/124 looper letters, 351 selfloop transitions, 178 changer transitions 5/542 dead transitions. [2021-03-25 12:18:12,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 542 transitions, 16965 flow [2021-03-25 12:18:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:18:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:18:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 511 transitions. [2021-03-25 12:18:12,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25756048387096775 [2021-03-25 12:18:12,305 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 511 transitions. [2021-03-25 12:18:12,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 511 transitions. [2021-03-25 12:18:12,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:12,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 511 transitions. [2021-03-25 12:18:12,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 31.9375) internal successors, (511), 16 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:12,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:12,306 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:12,306 INFO L185 Difference]: Start difference. First operand has 506 places, 523 transitions, 14503 flow. Second operand 16 states and 511 transitions. [2021-03-25 12:18:12,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 542 transitions, 16965 flow [2021-03-25 12:18:12,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 542 transitions, 16654 flow, removed 22 selfloop flow, removed 12 redundant places. [2021-03-25 12:18:12,912 INFO L241 Difference]: Finished difference. Result has 514 places, 525 transitions, 14942 flow [2021-03-25 12:18:12,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14208, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=14942, PETRI_PLACES=514, PETRI_TRANSITIONS=525} [2021-03-25 12:18:12,912 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 467 predicate places. [2021-03-25 12:18:12,912 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:12,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 525 transitions, 14942 flow [2021-03-25 12:18:12,913 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 525 transitions, 14942 flow [2021-03-25 12:18:12,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 525 transitions, 14942 flow [2021-03-25 12:18:13,122 INFO L129 PetriNetUnfolder]: 363/982 cut-off events. [2021-03-25 12:18:13,122 INFO L130 PetriNetUnfolder]: For 131587/131714 co-relation queries the response was YES. [2021-03-25 12:18:13,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16829 conditions, 982 events. 363/982 cut-off events. For 131587/131714 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7611 event pairs, 25 based on Foata normal form. 10/985 useless extension candidates. Maximal degree in co-relation 16581. Up to 361 conditions per place. [2021-03-25 12:18:13,145 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 12:18:13,173 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:13,174 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:13,174 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 12:18:13,174 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 525 transitions, 14942 flow [2021-03-25 12:18:13,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:13,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:13,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:13,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-03-25 12:18:13,174 INFO L428 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:13,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:13,174 INFO L82 PathProgramCache]: Analyzing trace with hash -978424980, now seen corresponding path program 11 times [2021-03-25 12:18:13,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:13,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114013190] [2021-03-25 12:18:13,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:13,181 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:13,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:13,186 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:13,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:13,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:13,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:13,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:13,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:13,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:13,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:13,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:13,239 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:13,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:13,252 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:13,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:13,266 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:13,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:13,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114013190] [2021-03-25 12:18:13,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:13,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:18:13,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221335373] [2021-03-25 12:18:13,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:18:13,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:13,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:18:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:18:13,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:13,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 525 transitions, 14942 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:13,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:13,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:13,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:13,837 INFO L129 PetriNetUnfolder]: 379/1035 cut-off events. [2021-03-25 12:18:13,837 INFO L130 PetriNetUnfolder]: For 133369/133430 co-relation queries the response was YES. [2021-03-25 12:18:13,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18023 conditions, 1035 events. 379/1035 cut-off events. For 133369/133430 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7997 event pairs, 46 based on Foata normal form. 41/1076 useless extension candidates. Maximal degree in co-relation 17783. Up to 816 conditions per place. [2021-03-25 12:18:13,855 INFO L132 encePairwiseOnDemand]: 110/124 looper letters, 488 selfloop transitions, 29 changer transitions 3/528 dead transitions. [2021-03-25 12:18:13,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 528 transitions, 16055 flow [2021-03-25 12:18:13,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 355 transitions. [2021-03-25 12:18:13,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2385752688172043 [2021-03-25 12:18:13,856 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 355 transitions. [2021-03-25 12:18:13,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 355 transitions. [2021-03-25 12:18:13,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:13,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 355 transitions. [2021-03-25 12:18:13,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:13,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:13,857 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:13,857 INFO L185 Difference]: Start difference. First operand has 514 places, 525 transitions, 14942 flow. Second operand 12 states and 355 transitions. [2021-03-25 12:18:13,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 528 transitions, 16055 flow [2021-03-25 12:18:14,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 528 transitions, 15634 flow, removed 118 selfloop flow, removed 12 redundant places. [2021-03-25 12:18:14,518 INFO L241 Difference]: Finished difference. Result has 515 places, 523 transitions, 14557 flow [2021-03-25 12:18:14,518 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14521, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14557, PETRI_PLACES=515, PETRI_TRANSITIONS=523} [2021-03-25 12:18:14,519 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:18:14,519 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:14,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 523 transitions, 14557 flow [2021-03-25 12:18:14,519 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 523 transitions, 14557 flow [2021-03-25 12:18:14,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 523 transitions, 14557 flow [2021-03-25 12:18:14,721 INFO L129 PetriNetUnfolder]: 359/1004 cut-off events. [2021-03-25 12:18:14,721 INFO L130 PetriNetUnfolder]: For 118959/119000 co-relation queries the response was YES. [2021-03-25 12:18:14,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16517 conditions, 1004 events. 359/1004 cut-off events. For 118959/119000 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7989 event pairs, 19 based on Foata normal form. 5/1008 useless extension candidates. Maximal degree in co-relation 16297. Up to 355 conditions per place. [2021-03-25 12:18:14,745 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 12:18:14,775 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:14,775 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:14,775 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-03-25 12:18:14,775 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 523 transitions, 14557 flow [2021-03-25 12:18:14,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:14,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:14,775 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:14,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-03-25 12:18:14,775 INFO L428 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:14,775 INFO L82 PathProgramCache]: Analyzing trace with hash -693091584, now seen corresponding path program 1 times [2021-03-25 12:18:14,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:14,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723838462] [2021-03-25 12:18:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:14,785 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:14,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:14,790 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:14,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:14,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:14,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:14,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:14,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:14,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:14,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:14,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:14,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:14,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:14,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:14,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:14,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:14,845 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:14,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:14,858 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:14,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:14,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723838462] [2021-03-25 12:18:14,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:14,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:14,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750498292] [2021-03-25 12:18:14,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:14,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:14,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:14,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:14,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:14,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 523 transitions, 14557 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:14,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:14,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:14,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:15,472 INFO L129 PetriNetUnfolder]: 381/1036 cut-off events. [2021-03-25 12:18:15,473 INFO L130 PetriNetUnfolder]: For 125861/125929 co-relation queries the response was YES. [2021-03-25 12:18:15,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17775 conditions, 1036 events. 381/1036 cut-off events. For 125861/125929 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 7977 event pairs, 41 based on Foata normal form. 48/1084 useless extension candidates. Maximal degree in co-relation 17552. Up to 788 conditions per place. [2021-03-25 12:18:15,491 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 451 selfloop transitions, 70 changer transitions 6/535 dead transitions. [2021-03-25 12:18:15,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 535 transitions, 16251 flow [2021-03-25 12:18:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:15,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2021-03-25 12:18:15,493 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26370967741935486 [2021-03-25 12:18:15,493 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 327 transitions. [2021-03-25 12:18:15,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 327 transitions. [2021-03-25 12:18:15,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:15,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 327 transitions. [2021-03-25 12:18:15,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:15,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:15,494 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:15,494 INFO L185 Difference]: Start difference. First operand has 511 places, 523 transitions, 14557 flow. Second operand 10 states and 327 transitions. [2021-03-25 12:18:15,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 535 transitions, 16251 flow [2021-03-25 12:18:16,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 535 transitions, 16107 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-03-25 12:18:16,133 INFO L241 Difference]: Finished difference. Result has 512 places, 526 transitions, 14794 flow [2021-03-25 12:18:16,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14413, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14794, PETRI_PLACES=512, PETRI_TRANSITIONS=526} [2021-03-25 12:18:16,133 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 465 predicate places. [2021-03-25 12:18:16,133 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:16,133 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 526 transitions, 14794 flow [2021-03-25 12:18:16,133 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 526 transitions, 14794 flow [2021-03-25 12:18:16,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 526 transitions, 14794 flow [2021-03-25 12:18:16,332 INFO L129 PetriNetUnfolder]: 360/1008 cut-off events. [2021-03-25 12:18:16,332 INFO L130 PetriNetUnfolder]: For 121098/121155 co-relation queries the response was YES. [2021-03-25 12:18:16,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16659 conditions, 1008 events. 360/1008 cut-off events. For 121098/121155 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8038 event pairs, 23 based on Foata normal form. 6/1011 useless extension candidates. Maximal degree in co-relation 16410. Up to 355 conditions per place. [2021-03-25 12:18:16,356 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 12:18:16,386 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:16,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:16,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 253 [2021-03-25 12:18:16,386 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 526 transitions, 14794 flow [2021-03-25 12:18:16,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:16,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:16,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:16,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-03-25 12:18:16,386 INFO L428 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1077910638, now seen corresponding path program 12 times [2021-03-25 12:18:16,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:16,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041513571] [2021-03-25 12:18:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:16,392 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:16,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:16,397 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:16,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:16,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:16,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:16,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:16,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:16,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:16,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:16,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:16,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:16,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:16,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:16,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:16,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:16,463 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:16,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:16,466 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:16,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:16,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:16,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041513571] [2021-03-25 12:18:16,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:16,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:16,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79364716] [2021-03-25 12:18:16,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:16,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:16,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:16,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:16,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:16,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 526 transitions, 14794 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:16,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:16,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:16,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:17,021 INFO L129 PetriNetUnfolder]: 379/1035 cut-off events. [2021-03-25 12:18:17,022 INFO L130 PetriNetUnfolder]: For 127824/127904 co-relation queries the response was YES. [2021-03-25 12:18:17,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17793 conditions, 1035 events. 379/1035 cut-off events. For 127824/127904 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8006 event pairs, 44 based on Foata normal form. 41/1075 useless extension candidates. Maximal degree in co-relation 17552. Up to 816 conditions per place. [2021-03-25 12:18:17,041 INFO L132 encePairwiseOnDemand]: 110/124 looper letters, 489 selfloop transitions, 30 changer transitions 2/529 dead transitions. [2021-03-25 12:18:17,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 529 transitions, 15907 flow [2021-03-25 12:18:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 329 transitions. [2021-03-25 12:18:17,042 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24120234604105573 [2021-03-25 12:18:17,042 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 329 transitions. [2021-03-25 12:18:17,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 329 transitions. [2021-03-25 12:18:17,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:17,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 329 transitions. [2021-03-25 12:18:17,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.90909090909091) internal successors, (329), 11 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:17,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:17,043 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:17,043 INFO L185 Difference]: Start difference. First operand has 511 places, 526 transitions, 14794 flow. Second operand 11 states and 329 transitions. [2021-03-25 12:18:17,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 529 transitions, 15907 flow [2021-03-25 12:18:17,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 529 transitions, 15593 flow, removed 79 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:17,937 INFO L241 Difference]: Finished difference. Result has 514 places, 525 transitions, 14541 flow [2021-03-25 12:18:17,937 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14480, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14541, PETRI_PLACES=514, PETRI_TRANSITIONS=525} [2021-03-25 12:18:17,937 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 467 predicate places. [2021-03-25 12:18:17,937 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:17,937 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 514 places, 525 transitions, 14541 flow [2021-03-25 12:18:17,937 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 514 places, 525 transitions, 14541 flow [2021-03-25 12:18:17,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 513 places, 525 transitions, 14541 flow [2021-03-25 12:18:18,133 INFO L129 PetriNetUnfolder]: 356/986 cut-off events. [2021-03-25 12:18:18,133 INFO L130 PetriNetUnfolder]: For 120587/120724 co-relation queries the response was YES. [2021-03-25 12:18:18,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16161 conditions, 986 events. 356/986 cut-off events. For 120587/120724 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7782 event pairs, 26 based on Foata normal form. 15/996 useless extension candidates. Maximal degree in co-relation 15913. Up to 345 conditions per place. [2021-03-25 12:18:18,157 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:18:18,187 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:18,187 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:18,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 250 [2021-03-25 12:18:18,187 INFO L480 AbstractCegarLoop]: Abstraction has has 513 places, 525 transitions, 14541 flow [2021-03-25 12:18:18,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:18,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:18,188 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:18,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-03-25 12:18:18,188 INFO L428 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:18,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:18,188 INFO L82 PathProgramCache]: Analyzing trace with hash 19139672, now seen corresponding path program 13 times [2021-03-25 12:18:18,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:18,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959648394] [2021-03-25 12:18:18,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:18,193 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:18,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:18,198 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:18,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:18,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:18,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:18,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:18,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:18,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:18,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:18,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:18,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:18,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:18,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:18,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:18,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:18,265 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:18,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:18,280 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:18,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:18,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959648394] [2021-03-25 12:18:18,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:18,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:18:18,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119412718] [2021-03-25 12:18:18,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:18:18,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:18,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:18:18,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:18:18,283 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:18,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 525 transitions, 14541 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:18,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:18,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:18,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:18,834 INFO L129 PetriNetUnfolder]: 378/1033 cut-off events. [2021-03-25 12:18:18,834 INFO L130 PetriNetUnfolder]: For 123780/123860 co-relation queries the response was YES. [2021-03-25 12:18:18,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17587 conditions, 1033 events. 378/1033 cut-off events. For 123780/123860 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7994 event pairs, 43 based on Foata normal form. 41/1073 useless extension candidates. Maximal degree in co-relation 17347. Up to 815 conditions per place. [2021-03-25 12:18:18,851 INFO L132 encePairwiseOnDemand]: 110/124 looper letters, 489 selfloop transitions, 25 changer transitions 6/528 dead transitions. [2021-03-25 12:18:18,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 528 transitions, 15654 flow [2021-03-25 12:18:18,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 354 transitions. [2021-03-25 12:18:18,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23790322580645162 [2021-03-25 12:18:18,852 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 354 transitions. [2021-03-25 12:18:18,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 354 transitions. [2021-03-25 12:18:18,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:18,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 354 transitions. [2021-03-25 12:18:18,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:18,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:18,853 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:18,853 INFO L185 Difference]: Start difference. First operand has 513 places, 525 transitions, 14541 flow. Second operand 12 states and 354 transitions. [2021-03-25 12:18:18,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 528 transitions, 15654 flow [2021-03-25 12:18:19,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 528 transitions, 15572 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 12:18:19,476 INFO L241 Difference]: Finished difference. Result has 515 places, 520 transitions, 14423 flow [2021-03-25 12:18:19,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14459, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14423, PETRI_PLACES=515, PETRI_TRANSITIONS=520} [2021-03-25 12:18:19,477 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:18:19,477 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:19,477 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 520 transitions, 14423 flow [2021-03-25 12:18:19,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 520 transitions, 14423 flow [2021-03-25 12:18:19,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 520 transitions, 14423 flow [2021-03-25 12:18:19,668 INFO L129 PetriNetUnfolder]: 357/984 cut-off events. [2021-03-25 12:18:19,668 INFO L130 PetriNetUnfolder]: For 121447/121612 co-relation queries the response was YES. [2021-03-25 12:18:19,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16126 conditions, 984 events. 357/984 cut-off events. For 121447/121612 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7720 event pairs, 26 based on Foata normal form. 16/995 useless extension candidates. Maximal degree in co-relation 15906. Up to 347 conditions per place. [2021-03-25 12:18:19,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 12:18:19,722 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:19,722 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:19,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 245 [2021-03-25 12:18:19,722 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 520 transitions, 14423 flow [2021-03-25 12:18:19,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:19,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:19,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:19,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-03-25 12:18:19,723 INFO L428 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:19,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:19,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1935135034, now seen corresponding path program 14 times [2021-03-25 12:18:19,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:19,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503572243] [2021-03-25 12:18:19,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:19,731 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:19,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:19,736 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:19,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:19,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:19,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:19,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:19,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:19,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:19,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:19,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:19,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:19,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:19,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:19,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:19,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:19,812 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:19,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:19,828 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:19,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:19,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503572243] [2021-03-25 12:18:19,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:19,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:18:19,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181639915] [2021-03-25 12:18:19,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:18:19,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:19,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:18:19,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:18:19,831 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:19,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 520 transitions, 14423 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:19,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:19,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:19,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:20,511 INFO L129 PetriNetUnfolder]: 379/1035 cut-off events. [2021-03-25 12:18:20,511 INFO L130 PetriNetUnfolder]: For 124871/124951 co-relation queries the response was YES. [2021-03-25 12:18:20,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17599 conditions, 1035 events. 379/1035 cut-off events. For 124871/124951 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7963 event pairs, 44 based on Foata normal form. 52/1086 useless extension candidates. Maximal degree in co-relation 17376. Up to 799 conditions per place. [2021-03-25 12:18:20,529 INFO L132 encePairwiseOnDemand]: 108/124 looper letters, 468 selfloop transitions, 41 changer transitions 12/529 dead transitions. [2021-03-25 12:18:20,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 529 transitions, 15702 flow [2021-03-25 12:18:20,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:18:20,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:18:20,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 449 transitions. [2021-03-25 12:18:20,531 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2413978494623656 [2021-03-25 12:18:20,531 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 449 transitions. [2021-03-25 12:18:20,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 449 transitions. [2021-03-25 12:18:20,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:20,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 449 transitions. [2021-03-25 12:18:20,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.933333333333334) internal successors, (449), 15 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:20,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:20,532 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 124.0) internal successors, (1984), 16 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:20,532 INFO L185 Difference]: Start difference. First operand has 505 places, 520 transitions, 14423 flow. Second operand 15 states and 449 transitions. [2021-03-25 12:18:20,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 529 transitions, 15702 flow [2021-03-25 12:18:21,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 529 transitions, 15637 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:21,190 INFO L241 Difference]: Finished difference. Result has 516 places, 515 transitions, 14375 flow [2021-03-25 12:18:21,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14358, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14375, PETRI_PLACES=516, PETRI_TRANSITIONS=515} [2021-03-25 12:18:21,190 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 469 predicate places. [2021-03-25 12:18:21,190 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:21,190 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 516 places, 515 transitions, 14375 flow [2021-03-25 12:18:21,190 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 516 places, 515 transitions, 14375 flow [2021-03-25 12:18:21,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 506 places, 515 transitions, 14375 flow [2021-03-25 12:18:21,384 INFO L129 PetriNetUnfolder]: 355/994 cut-off events. [2021-03-25 12:18:21,384 INFO L130 PetriNetUnfolder]: For 119299/119359 co-relation queries the response was YES. [2021-03-25 12:18:21,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16365 conditions, 994 events. 355/994 cut-off events. For 119299/119359 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7909 event pairs, 24 based on Foata normal form. 6/993 useless extension candidates. Maximal degree in co-relation 16143. Up to 354 conditions per place. [2021-03-25 12:18:21,446 INFO L142 LiptonReduction]: Number of co-enabled transitions 778 [2021-03-25 12:18:21,473 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:21,473 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:21,473 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 283 [2021-03-25 12:18:21,474 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 515 transitions, 14375 flow [2021-03-25 12:18:21,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:21,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:21,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:21,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-03-25 12:18:21,474 INFO L428 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:21,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:21,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1458330728, now seen corresponding path program 2 times [2021-03-25 12:18:21,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:21,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87875842] [2021-03-25 12:18:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:21,481 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:21,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:21,486 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:21,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:21,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:21,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:21,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:21,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:21,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:21,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:21,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:21,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:21,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:21,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:21,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:21,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:21,548 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:21,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:21,561 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:21,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:21,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87875842] [2021-03-25 12:18:21,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:21,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:21,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832851595] [2021-03-25 12:18:21,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:21,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:21,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:21,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:21,565 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:21,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 515 transitions, 14375 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:21,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:21,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:21,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:22,158 INFO L129 PetriNetUnfolder]: 377/1025 cut-off events. [2021-03-25 12:18:22,159 INFO L130 PetriNetUnfolder]: For 126670/126745 co-relation queries the response was YES. [2021-03-25 12:18:22,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17658 conditions, 1025 events. 377/1025 cut-off events. For 126670/126745 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7872 event pairs, 46 based on Foata normal form. 38/1062 useless extension candidates. Maximal degree in co-relation 17433. Up to 797 conditions per place. [2021-03-25 12:18:22,178 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 462 selfloop transitions, 51 changer transitions 4/525 dead transitions. [2021-03-25 12:18:22,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 525 transitions, 15816 flow [2021-03-25 12:18:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:18:22,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25 [2021-03-25 12:18:22,180 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:18:22,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:18:22,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:22,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:18:22,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:22,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:22,181 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:22,181 INFO L185 Difference]: Start difference. First operand has 506 places, 515 transitions, 14375 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:18:22,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 525 transitions, 15816 flow [2021-03-25 12:18:22,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 525 transitions, 15696 flow, removed 19 selfloop flow, removed 11 redundant places. [2021-03-25 12:18:22,841 INFO L241 Difference]: Finished difference. Result has 511 places, 519 transitions, 14572 flow [2021-03-25 12:18:22,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14255, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14572, PETRI_PLACES=511, PETRI_TRANSITIONS=519} [2021-03-25 12:18:22,842 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:18:22,842 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:22,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 519 transitions, 14572 flow [2021-03-25 12:18:22,842 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 519 transitions, 14572 flow [2021-03-25 12:18:22,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 519 transitions, 14572 flow [2021-03-25 12:18:23,034 INFO L129 PetriNetUnfolder]: 355/980 cut-off events. [2021-03-25 12:18:23,034 INFO L130 PetriNetUnfolder]: For 122952/123118 co-relation queries the response was YES. [2021-03-25 12:18:23,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16208 conditions, 980 events. 355/980 cut-off events. For 122952/123118 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7674 event pairs, 27 based on Foata normal form. 16/991 useless extension candidates. Maximal degree in co-relation 15959. Up to 349 conditions per place. [2021-03-25 12:18:23,058 INFO L142 LiptonReduction]: Number of co-enabled transitions 778 [2021-03-25 12:18:23,087 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:23,087 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:23,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-03-25 12:18:23,088 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 519 transitions, 14572 flow [2021-03-25 12:18:23,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:23,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:23,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:23,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-03-25 12:18:23,088 INFO L428 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:23,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:23,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1995662504, now seen corresponding path program 3 times [2021-03-25 12:18:23,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:23,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567585678] [2021-03-25 12:18:23,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:23,094 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:23,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:23,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:23,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:23,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:23,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:23,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:23,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:23,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:23,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:23,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:23,150 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:23,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:23,164 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:23,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:23,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567585678] [2021-03-25 12:18:23,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:23,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:23,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645438835] [2021-03-25 12:18:23,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:23,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:23,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:23,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:23,167 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:23,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 519 transitions, 14572 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:23,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:23,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:23,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:23,754 INFO L129 PetriNetUnfolder]: 380/1039 cut-off events. [2021-03-25 12:18:23,755 INFO L130 PetriNetUnfolder]: For 131500/131557 co-relation queries the response was YES. [2021-03-25 12:18:23,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18091 conditions, 1039 events. 380/1039 cut-off events. For 131500/131557 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8057 event pairs, 43 based on Foata normal form. 48/1087 useless extension candidates. Maximal degree in co-relation 17850. Up to 795 conditions per place. [2021-03-25 12:18:23,774 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 472 selfloop transitions, 52 changer transitions 7/539 dead transitions. [2021-03-25 12:18:23,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 539 transitions, 16872 flow [2021-03-25 12:18:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:23,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 343 transitions. [2021-03-25 12:18:23,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25146627565982405 [2021-03-25 12:18:23,775 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 343 transitions. [2021-03-25 12:18:23,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 343 transitions. [2021-03-25 12:18:23,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:23,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 343 transitions. [2021-03-25 12:18:23,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:23,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:23,776 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:23,776 INFO L185 Difference]: Start difference. First operand has 510 places, 519 transitions, 14572 flow. Second operand 11 states and 343 transitions. [2021-03-25 12:18:23,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 539 transitions, 16872 flow [2021-03-25 12:18:24,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 539 transitions, 16589 flow, removed 90 selfloop flow, removed 8 redundant places. [2021-03-25 12:18:24,498 INFO L241 Difference]: Finished difference. Result has 519 places, 528 transitions, 14983 flow [2021-03-25 12:18:24,499 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14291, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14983, PETRI_PLACES=519, PETRI_TRANSITIONS=528} [2021-03-25 12:18:24,499 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 472 predicate places. [2021-03-25 12:18:24,499 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:24,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 519 places, 528 transitions, 14983 flow [2021-03-25 12:18:24,499 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 519 places, 528 transitions, 14983 flow [2021-03-25 12:18:24,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 515 places, 528 transitions, 14983 flow [2021-03-25 12:18:24,710 INFO L129 PetriNetUnfolder]: 357/998 cut-off events. [2021-03-25 12:18:24,710 INFO L130 PetriNetUnfolder]: For 122677/122728 co-relation queries the response was YES. [2021-03-25 12:18:24,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16714 conditions, 998 events. 357/998 cut-off events. For 122677/122728 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 7947 event pairs, 26 based on Foata normal form. 3/994 useless extension candidates. Maximal degree in co-relation 16488. Up to 360 conditions per place. [2021-03-25 12:18:24,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:18:24,771 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:24,771 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:24,771 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-25 12:18:24,771 INFO L480 AbstractCegarLoop]: Abstraction has has 515 places, 528 transitions, 14983 flow [2021-03-25 12:18:24,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:24,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:24,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:24,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-03-25 12:18:24,771 INFO L428 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:24,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:24,772 INFO L82 PathProgramCache]: Analyzing trace with hash 321917248, now seen corresponding path program 4 times [2021-03-25 12:18:24,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:24,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750745608] [2021-03-25 12:18:24,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:24,779 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:24,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:24,784 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:24,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:24,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:24,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:24,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:24,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:24,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:24,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:24,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:24,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:24,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:24,827 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:24,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:24,839 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:24,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:24,853 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:24,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:24,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750745608] [2021-03-25 12:18:24,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:24,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:24,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214451484] [2021-03-25 12:18:24,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:24,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:24,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:24,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:24,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:24,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 528 transitions, 14983 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:24,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:24,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:24,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:25,485 INFO L129 PetriNetUnfolder]: 376/1034 cut-off events. [2021-03-25 12:18:25,486 INFO L130 PetriNetUnfolder]: For 131806/131883 co-relation queries the response was YES. [2021-03-25 12:18:25,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17985 conditions, 1034 events. 376/1034 cut-off events. For 131806/131883 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8044 event pairs, 30 based on Foata normal form. 57/1091 useless extension candidates. Maximal degree in co-relation 17756. Up to 735 conditions per place. [2021-03-25 12:18:25,505 INFO L132 encePairwiseOnDemand]: 108/124 looper letters, 417 selfloop transitions, 107 changer transitions 5/537 dead transitions. [2021-03-25 12:18:25,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 537 transitions, 16662 flow [2021-03-25 12:18:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2021-03-25 12:18:25,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2620967741935484 [2021-03-25 12:18:25,506 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 325 transitions. [2021-03-25 12:18:25,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 325 transitions. [2021-03-25 12:18:25,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:25,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 325 transitions. [2021-03-25 12:18:25,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.5) internal successors, (325), 10 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:25,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:25,507 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:25,507 INFO L185 Difference]: Start difference. First operand has 515 places, 528 transitions, 14983 flow. Second operand 10 states and 325 transitions. [2021-03-25 12:18:25,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 537 transitions, 16662 flow [2021-03-25 12:18:26,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 537 transitions, 16487 flow, removed 86 selfloop flow, removed 4 redundant places. [2021-03-25 12:18:26,266 INFO L241 Difference]: Finished difference. Result has 523 places, 526 transitions, 15068 flow [2021-03-25 12:18:26,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14808, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15068, PETRI_PLACES=523, PETRI_TRANSITIONS=526} [2021-03-25 12:18:26,266 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 476 predicate places. [2021-03-25 12:18:26,267 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:26,267 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 523 places, 526 transitions, 15068 flow [2021-03-25 12:18:26,267 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 523 places, 526 transitions, 15068 flow [2021-03-25 12:18:26,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 521 places, 526 transitions, 15068 flow [2021-03-25 12:18:26,479 INFO L129 PetriNetUnfolder]: 354/997 cut-off events. [2021-03-25 12:18:26,479 INFO L130 PetriNetUnfolder]: For 127796/127904 co-relation queries the response was YES. [2021-03-25 12:18:26,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16727 conditions, 997 events. 354/997 cut-off events. For 127796/127904 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7970 event pairs, 28 based on Foata normal form. 13/1007 useless extension candidates. Maximal degree in co-relation 16500. Up to 355 conditions per place. [2021-03-25 12:18:26,506 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 12:18:26,537 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:26,537 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:26,538 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 271 [2021-03-25 12:18:26,538 INFO L480 AbstractCegarLoop]: Abstraction has has 521 places, 526 transitions, 15068 flow [2021-03-25 12:18:26,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:26,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:26,538 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:26,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-03-25 12:18:26,538 INFO L428 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash -725797114, now seen corresponding path program 5 times [2021-03-25 12:18:26,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:26,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260138376] [2021-03-25 12:18:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:26,544 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:26,549 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:26,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:26,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:26,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:26,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:26,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:26,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:26,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:26,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:26,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:26,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:26,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:26,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:26,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:26,605 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:26,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:26,610 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:26,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:26,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260138376] [2021-03-25 12:18:26,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:26,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:26,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048549068] [2021-03-25 12:18:26,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:26,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:26,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:26,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:26,614 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:26,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 526 transitions, 15068 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:26,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:26,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:26,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:27,207 INFO L129 PetriNetUnfolder]: 375/1029 cut-off events. [2021-03-25 12:18:27,207 INFO L130 PetriNetUnfolder]: For 132152/132229 co-relation queries the response was YES. [2021-03-25 12:18:27,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18019 conditions, 1029 events. 375/1029 cut-off events. For 132152/132229 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 7955 event pairs, 38 based on Foata normal form. 47/1076 useless extension candidates. Maximal degree in co-relation 17789. Up to 797 conditions per place. [2021-03-25 12:18:27,226 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 470 selfloop transitions, 52 changer transitions 3/533 dead transitions. [2021-03-25 12:18:27,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 533 transitions, 16396 flow [2021-03-25 12:18:27,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:18:27,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:18:27,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 291 transitions. [2021-03-25 12:18:27,227 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.260752688172043 [2021-03-25 12:18:27,227 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 291 transitions. [2021-03-25 12:18:27,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 291 transitions. [2021-03-25 12:18:27,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:27,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 291 transitions. [2021-03-25 12:18:27,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.333333333333336) internal successors, (291), 9 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:27,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:27,228 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:27,228 INFO L185 Difference]: Start difference. First operand has 521 places, 526 transitions, 15068 flow. Second operand 9 states and 291 transitions. [2021-03-25 12:18:27,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 533 transitions, 16396 flow [2021-03-25 12:18:27,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 533 transitions, 16153 flow, removed 24 selfloop flow, removed 10 redundant places. [2021-03-25 12:18:27,993 INFO L241 Difference]: Finished difference. Result has 522 places, 527 transitions, 14987 flow [2021-03-25 12:18:27,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14825, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14987, PETRI_PLACES=522, PETRI_TRANSITIONS=527} [2021-03-25 12:18:27,994 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 475 predicate places. [2021-03-25 12:18:27,994 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:27,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 527 transitions, 14987 flow [2021-03-25 12:18:27,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 527 transitions, 14987 flow [2021-03-25 12:18:27,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 521 places, 527 transitions, 14987 flow [2021-03-25 12:18:28,203 INFO L129 PetriNetUnfolder]: 354/989 cut-off events. [2021-03-25 12:18:28,203 INFO L130 PetriNetUnfolder]: For 127667/127785 co-relation queries the response was YES. [2021-03-25 12:18:28,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16709 conditions, 989 events. 354/989 cut-off events. For 127667/127785 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7849 event pairs, 27 based on Foata normal form. 13/1002 useless extension candidates. Maximal degree in co-relation 16454. Up to 355 conditions per place. [2021-03-25 12:18:28,229 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:18:28,260 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:28,260 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:28,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 266 [2021-03-25 12:18:28,260 INFO L480 AbstractCegarLoop]: Abstraction has has 521 places, 527 transitions, 14987 flow [2021-03-25 12:18:28,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:28,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:28,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:28,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-03-25 12:18:28,260 INFO L428 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:28,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1643314006, now seen corresponding path program 6 times [2021-03-25 12:18:28,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:28,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019854415] [2021-03-25 12:18:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:28,267 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:28,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:28,271 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:28,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:28,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:28,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:28,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:28,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:28,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:28,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:28,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:28,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:28,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:28,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:28,316 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:28,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:28,329 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:28,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:28,342 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:28,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:28,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019854415] [2021-03-25 12:18:28,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:28,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:28,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342603847] [2021-03-25 12:18:28,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:28,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:28,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:28,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:28,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:28,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 527 transitions, 14987 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:28,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:28,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:28,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:28,969 INFO L129 PetriNetUnfolder]: 374/1032 cut-off events. [2021-03-25 12:18:28,969 INFO L130 PetriNetUnfolder]: For 133390/133467 co-relation queries the response was YES. [2021-03-25 12:18:28,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17963 conditions, 1032 events. 374/1032 cut-off events. For 133390/133467 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8003 event pairs, 43 based on Foata normal form. 38/1069 useless extension candidates. Maximal degree in co-relation 17716. Up to 792 conditions per place. [2021-03-25 12:18:28,988 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 463 selfloop transitions, 61 changer transitions 5/537 dead transitions. [2021-03-25 12:18:28,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 537 transitions, 16565 flow [2021-03-25 12:18:28,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:28,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2021-03-25 12:18:28,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2493279569892473 [2021-03-25 12:18:28,989 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 371 transitions. [2021-03-25 12:18:28,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 371 transitions. [2021-03-25 12:18:28,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:28,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 371 transitions. [2021-03-25 12:18:28,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:28,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:28,990 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:28,990 INFO L185 Difference]: Start difference. First operand has 521 places, 527 transitions, 14987 flow. Second operand 12 states and 371 transitions. [2021-03-25 12:18:28,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 537 transitions, 16565 flow [2021-03-25 12:18:29,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 537 transitions, 16376 flow, removed 18 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:29,791 INFO L241 Difference]: Finished difference. Result has 526 places, 530 transitions, 15210 flow [2021-03-25 12:18:29,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14798, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15210, PETRI_PLACES=526, PETRI_TRANSITIONS=530} [2021-03-25 12:18:29,791 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 479 predicate places. [2021-03-25 12:18:29,791 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:29,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 526 places, 530 transitions, 15210 flow [2021-03-25 12:18:29,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 526 places, 530 transitions, 15210 flow [2021-03-25 12:18:29,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 525 places, 530 transitions, 15210 flow [2021-03-25 12:18:29,997 INFO L129 PetriNetUnfolder]: 352/982 cut-off events. [2021-03-25 12:18:29,997 INFO L130 PetriNetUnfolder]: For 126398/126453 co-relation queries the response was YES. [2021-03-25 12:18:30,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16639 conditions, 982 events. 352/982 cut-off events. For 126398/126453 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7796 event pairs, 25 based on Foata normal form. 5/983 useless extension candidates. Maximal degree in co-relation 16383. Up to 353 conditions per place. [2021-03-25 12:18:30,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:18:30,092 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:30,092 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:30,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-03-25 12:18:30,092 INFO L480 AbstractCegarLoop]: Abstraction has has 525 places, 530 transitions, 15210 flow [2021-03-25 12:18:30,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:30,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:30,092 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:30,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-03-25 12:18:30,092 INFO L428 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:30,092 INFO L82 PathProgramCache]: Analyzing trace with hash 237453010, now seen corresponding path program 7 times [2021-03-25 12:18:30,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:30,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359786036] [2021-03-25 12:18:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:30,108 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:30,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:30,113 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:30,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:30,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:30,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:30,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:30,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:30,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:30,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:30,147 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:30,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:30,149 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:30,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:30,161 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:30,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:30,173 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:30,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:30,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359786036] [2021-03-25 12:18:30,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:30,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:30,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593431021] [2021-03-25 12:18:30,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:30,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:30,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:30,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:30,177 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:30,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 530 transitions, 15210 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:30,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:30,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:30,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:30,742 INFO L129 PetriNetUnfolder]: 372/1023 cut-off events. [2021-03-25 12:18:30,742 INFO L130 PetriNetUnfolder]: For 134949/135026 co-relation queries the response was YES. [2021-03-25 12:18:30,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17911 conditions, 1023 events. 372/1023 cut-off events. For 134949/135026 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7924 event pairs, 43 based on Foata normal form. 38/1060 useless extension candidates. Maximal degree in co-relation 17663. Up to 799 conditions per place. [2021-03-25 12:18:30,762 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 476 selfloop transitions, 46 changer transitions 5/535 dead transitions. [2021-03-25 12:18:30,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 535 transitions, 16408 flow [2021-03-25 12:18:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:18:30,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:18:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 287 transitions. [2021-03-25 12:18:30,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.257168458781362 [2021-03-25 12:18:30,763 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 287 transitions. [2021-03-25 12:18:30,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 287 transitions. [2021-03-25 12:18:30,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:30,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 287 transitions. [2021-03-25 12:18:30,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.88888888888889) internal successors, (287), 9 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:30,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:30,764 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:30,764 INFO L185 Difference]: Start difference. First operand has 525 places, 530 transitions, 15210 flow. Second operand 9 states and 287 transitions. [2021-03-25 12:18:30,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 535 transitions, 16408 flow [2021-03-25 12:18:31,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 535 transitions, 15900 flow, removed 231 selfloop flow, removed 5 redundant places. [2021-03-25 12:18:31,558 INFO L241 Difference]: Finished difference. Result has 530 places, 528 transitions, 14781 flow [2021-03-25 12:18:31,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14738, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14781, PETRI_PLACES=530, PETRI_TRANSITIONS=528} [2021-03-25 12:18:31,558 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 483 predicate places. [2021-03-25 12:18:31,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:31,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 530 places, 528 transitions, 14781 flow [2021-03-25 12:18:31,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 530 places, 528 transitions, 14781 flow [2021-03-25 12:18:31,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 530 places, 528 transitions, 14781 flow [2021-03-25 12:18:31,751 INFO L129 PetriNetUnfolder]: 352/979 cut-off events. [2021-03-25 12:18:31,752 INFO L130 PetriNetUnfolder]: For 124500/124553 co-relation queries the response was YES. [2021-03-25 12:18:31,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16422 conditions, 979 events. 352/979 cut-off events. For 124500/124553 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 7746 event pairs, 25 based on Foata normal form. 5/979 useless extension candidates. Maximal degree in co-relation 16172. Up to 345 conditions per place. [2021-03-25 12:18:31,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:18:31,806 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:31,806 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:31,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 12:18:31,807 INFO L480 AbstractCegarLoop]: Abstraction has has 530 places, 528 transitions, 14781 flow [2021-03-25 12:18:31,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:31,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:31,807 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:31,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-03-25 12:18:31,807 INFO L428 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:31,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1778507256, now seen corresponding path program 8 times [2021-03-25 12:18:31,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:31,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416895810] [2021-03-25 12:18:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:31,815 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:31,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:31,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:31,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:31,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:31,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:31,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:31,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:31,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:31,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:31,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:31,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:31,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:31,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:31,876 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:31,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:31,880 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:31,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:31,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416895810] [2021-03-25 12:18:31,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:31,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:31,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346235565] [2021-03-25 12:18:31,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:31,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:31,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:31,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:31,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:31,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 528 transitions, 14781 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:31,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:31,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:31,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:32,488 INFO L129 PetriNetUnfolder]: 375/1039 cut-off events. [2021-03-25 12:18:32,488 INFO L130 PetriNetUnfolder]: For 136317/136394 co-relation queries the response was YES. [2021-03-25 12:18:32,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17954 conditions, 1039 events. 375/1039 cut-off events. For 136317/136394 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8102 event pairs, 44 based on Foata normal form. 38/1076 useless extension candidates. Maximal degree in co-relation 17705. Up to 782 conditions per place. [2021-03-25 12:18:32,509 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 457 selfloop transitions, 71 changer transitions 3/539 dead transitions. [2021-03-25 12:18:32,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 539 transitions, 16371 flow [2021-03-25 12:18:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:18:32,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:18:32,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 12:18:32,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2616487455197133 [2021-03-25 12:18:32,511 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 12:18:32,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 12:18:32,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:32,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 12:18:32,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:32,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:32,512 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:32,512 INFO L185 Difference]: Start difference. First operand has 530 places, 528 transitions, 14781 flow. Second operand 9 states and 292 transitions. [2021-03-25 12:18:32,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 539 transitions, 16371 flow [2021-03-25 12:18:33,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 539 transitions, 16248 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-03-25 12:18:33,371 INFO L241 Difference]: Finished difference. Result has 530 places, 532 transitions, 15131 flow [2021-03-25 12:18:33,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14658, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15131, PETRI_PLACES=530, PETRI_TRANSITIONS=532} [2021-03-25 12:18:33,371 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 483 predicate places. [2021-03-25 12:18:33,371 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:33,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 530 places, 532 transitions, 15131 flow [2021-03-25 12:18:33,372 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 530 places, 532 transitions, 15131 flow [2021-03-25 12:18:33,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 530 places, 532 transitions, 15131 flow [2021-03-25 12:18:33,587 INFO L129 PetriNetUnfolder]: 355/999 cut-off events. [2021-03-25 12:18:33,587 INFO L130 PetriNetUnfolder]: For 137462/137609 co-relation queries the response was YES. [2021-03-25 12:18:33,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16862 conditions, 999 events. 355/999 cut-off events. For 137462/137609 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 7995 event pairs, 25 based on Foata normal form. 15/1012 useless extension candidates. Maximal degree in co-relation 16604. Up to 352 conditions per place. [2021-03-25 12:18:33,615 INFO L142 LiptonReduction]: Number of co-enabled transitions 808 [2021-03-25 12:18:33,647 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:33,647 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:33,647 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 276 [2021-03-25 12:18:33,647 INFO L480 AbstractCegarLoop]: Abstraction has has 530 places, 532 transitions, 15131 flow [2021-03-25 12:18:33,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:33,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:33,647 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:33,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-03-25 12:18:33,647 INFO L428 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:33,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:33,648 INFO L82 PathProgramCache]: Analyzing trace with hash 854170392, now seen corresponding path program 9 times [2021-03-25 12:18:33,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:33,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110391910] [2021-03-25 12:18:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:33,655 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:33,660 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:33,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:33,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:33,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:33,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:33,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:33,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:33,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:33,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:33,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:33,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:33,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:33,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:33,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:33,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:33,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:33,749 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:33,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:33,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110391910] [2021-03-25 12:18:33,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:33,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:33,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910215336] [2021-03-25 12:18:33,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:33,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:33,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:33,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:33,752 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:33,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 532 transitions, 15131 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:33,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:33,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:33,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:34,390 INFO L129 PetriNetUnfolder]: 374/1041 cut-off events. [2021-03-25 12:18:34,390 INFO L130 PetriNetUnfolder]: For 136299/136378 co-relation queries the response was YES. [2021-03-25 12:18:34,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18241 conditions, 1041 events. 374/1041 cut-off events. For 136299/136378 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8124 event pairs, 36 based on Foata normal form. 47/1088 useless extension candidates. Maximal degree in co-relation 17991. Up to 793 conditions per place. [2021-03-25 12:18:34,409 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 469 selfloop transitions, 55 changer transitions 10/542 dead transitions. [2021-03-25 12:18:34,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 542 transitions, 16673 flow [2021-03-25 12:18:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:18:34,411 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25268817204301075 [2021-03-25 12:18:34,411 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:18:34,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:18:34,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:34,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:18:34,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:34,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:34,412 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:34,412 INFO L185 Difference]: Start difference. First operand has 530 places, 532 transitions, 15131 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:18:34,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 542 transitions, 16673 flow [2021-03-25 12:18:35,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 542 transitions, 16466 flow, removed 62 selfloop flow, removed 5 redundant places. [2021-03-25 12:18:35,234 INFO L241 Difference]: Finished difference. Result has 541 places, 529 transitions, 15163 flow [2021-03-25 12:18:35,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14926, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15163, PETRI_PLACES=541, PETRI_TRANSITIONS=529} [2021-03-25 12:18:35,234 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 494 predicate places. [2021-03-25 12:18:35,234 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:35,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 541 places, 529 transitions, 15163 flow [2021-03-25 12:18:35,235 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 541 places, 529 transitions, 15163 flow [2021-03-25 12:18:35,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 537 places, 529 transitions, 15163 flow [2021-03-25 12:18:35,446 INFO L129 PetriNetUnfolder]: 354/994 cut-off events. [2021-03-25 12:18:35,446 INFO L130 PetriNetUnfolder]: For 136554/136652 co-relation queries the response was YES. [2021-03-25 12:18:35,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16949 conditions, 994 events. 354/994 cut-off events. For 136554/136652 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7860 event pairs, 25 based on Foata normal form. 7/993 useless extension candidates. Maximal degree in co-relation 16713. Up to 356 conditions per place. [2021-03-25 12:18:35,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:18:35,503 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:35,504 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:35,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 270 [2021-03-25 12:18:35,504 INFO L480 AbstractCegarLoop]: Abstraction has has 537 places, 529 transitions, 15163 flow [2021-03-25 12:18:35,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:35,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:35,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:35,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-03-25 12:18:35,504 INFO L428 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:35,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:35,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1777912610, now seen corresponding path program 10 times [2021-03-25 12:18:35,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:35,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772205623] [2021-03-25 12:18:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:35,510 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:35,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:35,515 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:35,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:35,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:35,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:35,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:35,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:35,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:35,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:35,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:35,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:35,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:35,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:35,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:35,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:35,571 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:35,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:35,585 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:35,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:35,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772205623] [2021-03-25 12:18:35,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:35,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:35,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968762027] [2021-03-25 12:18:35,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:35,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:35,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:35,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:35,588 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:35,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 529 transitions, 15163 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:35,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:35,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:35,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:36,274 INFO L129 PetriNetUnfolder]: 372/1033 cut-off events. [2021-03-25 12:18:36,274 INFO L130 PetriNetUnfolder]: For 141383/141462 co-relation queries the response was YES. [2021-03-25 12:18:36,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18189 conditions, 1033 events. 372/1033 cut-off events. For 141383/141462 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7984 event pairs, 36 based on Foata normal form. 38/1070 useless extension candidates. Maximal degree in co-relation 17949. Up to 727 conditions per place. [2021-03-25 12:18:36,293 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 388 selfloop transitions, 138 changer transitions 4/538 dead transitions. [2021-03-25 12:18:36,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 538 transitions, 16680 flow [2021-03-25 12:18:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 324 transitions. [2021-03-25 12:18:36,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26129032258064516 [2021-03-25 12:18:36,294 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 324 transitions. [2021-03-25 12:18:36,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 324 transitions. [2021-03-25 12:18:36,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:36,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 324 transitions. [2021-03-25 12:18:36,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.4) internal successors, (324), 10 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:36,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:36,295 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:36,295 INFO L185 Difference]: Start difference. First operand has 537 places, 529 transitions, 15163 flow. Second operand 10 states and 324 transitions. [2021-03-25 12:18:36,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 538 transitions, 16680 flow [2021-03-25 12:18:37,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 538 transitions, 16305 flow, removed 117 selfloop flow, removed 13 redundant places. [2021-03-25 12:18:37,127 INFO L241 Difference]: Finished difference. Result has 535 places, 529 transitions, 15239 flow [2021-03-25 12:18:37,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14788, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15239, PETRI_PLACES=535, PETRI_TRANSITIONS=529} [2021-03-25 12:18:37,128 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 488 predicate places. [2021-03-25 12:18:37,128 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:37,128 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 535 places, 529 transitions, 15239 flow [2021-03-25 12:18:37,128 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 535 places, 529 transitions, 15239 flow [2021-03-25 12:18:37,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 533 places, 529 transitions, 15239 flow [2021-03-25 12:18:37,351 INFO L129 PetriNetUnfolder]: 351/998 cut-off events. [2021-03-25 12:18:37,351 INFO L130 PetriNetUnfolder]: For 135075/135102 co-relation queries the response was YES. [2021-03-25 12:18:37,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17015 conditions, 998 events. 351/998 cut-off events. For 135075/135102 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 7968 event pairs, 21 based on Foata normal form. 3/999 useless extension candidates. Maximal degree in co-relation 16757. Up to 354 conditions per place. [2021-03-25 12:18:37,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 806 [2021-03-25 12:18:37,409 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:37,409 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:37,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 281 [2021-03-25 12:18:37,409 INFO L480 AbstractCegarLoop]: Abstraction has has 533 places, 529 transitions, 15239 flow [2021-03-25 12:18:37,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:37,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:37,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:37,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-03-25 12:18:37,410 INFO L428 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:37,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:37,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1425625198, now seen corresponding path program 11 times [2021-03-25 12:18:37,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:37,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791889625] [2021-03-25 12:18:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:37,416 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:37,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:37,420 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:37,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:37,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:37,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:37,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:37,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:37,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:37,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:37,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:37,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:37,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:37,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:37,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:37,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:37,479 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:37,494 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:37,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:37,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791889625] [2021-03-25 12:18:37,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:37,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:37,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405648044] [2021-03-25 12:18:37,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:37,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:37,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:37,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:37,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:37,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 529 transitions, 15239 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:37,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:37,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:37,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:38,131 INFO L129 PetriNetUnfolder]: 371/1030 cut-off events. [2021-03-25 12:18:38,131 INFO L130 PetriNetUnfolder]: For 139899/140031 co-relation queries the response was YES. [2021-03-25 12:18:38,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18290 conditions, 1030 events. 371/1030 cut-off events. For 139899/140031 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8003 event pairs, 41 based on Foata normal form. 51/1081 useless extension candidates. Maximal degree in co-relation 18040. Up to 794 conditions per place. [2021-03-25 12:18:38,151 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 465 selfloop transitions, 60 changer transitions 4/537 dead transitions. [2021-03-25 12:18:38,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 537 transitions, 16640 flow [2021-03-25 12:18:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:38,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 373 transitions. [2021-03-25 12:18:38,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2506720430107527 [2021-03-25 12:18:38,153 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 373 transitions. [2021-03-25 12:18:38,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 373 transitions. [2021-03-25 12:18:38,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:38,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 373 transitions. [2021-03-25 12:18:38,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:38,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:38,154 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:38,154 INFO L185 Difference]: Start difference. First operand has 533 places, 529 transitions, 15239 flow. Second operand 12 states and 373 transitions. [2021-03-25 12:18:38,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 537 transitions, 16640 flow [2021-03-25 12:18:38,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 537 transitions, 16307 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 12:18:38,932 INFO L241 Difference]: Finished difference. Result has 537 places, 531 transitions, 15215 flow [2021-03-25 12:18:38,932 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14908, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15215, PETRI_PLACES=537, PETRI_TRANSITIONS=531} [2021-03-25 12:18:38,932 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 490 predicate places. [2021-03-25 12:18:38,932 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:38,932 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 537 places, 531 transitions, 15215 flow [2021-03-25 12:18:38,932 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 537 places, 531 transitions, 15215 flow [2021-03-25 12:18:38,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 536 places, 531 transitions, 15215 flow [2021-03-25 12:18:39,171 INFO L129 PetriNetUnfolder]: 350/1000 cut-off events. [2021-03-25 12:18:39,171 INFO L130 PetriNetUnfolder]: For 134175/134234 co-relation queries the response was YES. [2021-03-25 12:18:39,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16898 conditions, 1000 events. 350/1000 cut-off events. For 134175/134234 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 8048 event pairs, 30 based on Foata normal form. 7/1004 useless extension candidates. Maximal degree in co-relation 16638. Up to 354 conditions per place. [2021-03-25 12:18:39,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 808 [2021-03-25 12:18:39,225 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:39,225 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:39,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 293 [2021-03-25 12:18:39,225 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 531 transitions, 15215 flow [2021-03-25 12:18:39,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:39,225 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:39,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:39,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-03-25 12:18:39,225 INFO L428 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:39,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:39,226 INFO L82 PathProgramCache]: Analyzing trace with hash -722336328, now seen corresponding path program 12 times [2021-03-25 12:18:39,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:39,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806657727] [2021-03-25 12:18:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:39,231 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:39,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:39,236 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:39,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:39,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:39,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:39,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:39,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:39,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:39,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:39,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:39,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:39,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:39,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:39,278 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:39,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:39,291 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:39,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:39,304 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:39,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:39,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806657727] [2021-03-25 12:18:39,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:39,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:39,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824120476] [2021-03-25 12:18:39,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:39,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:39,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:39,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:39,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:39,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 531 transitions, 15215 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:39,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:39,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:39,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:39,944 INFO L129 PetriNetUnfolder]: 370/1033 cut-off events. [2021-03-25 12:18:39,944 INFO L130 PetriNetUnfolder]: For 138297/138429 co-relation queries the response was YES. [2021-03-25 12:18:39,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18153 conditions, 1033 events. 370/1033 cut-off events. For 138297/138429 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 8083 event pairs, 27 based on Foata normal form. 61/1094 useless extension candidates. Maximal degree in co-relation 17901. Up to 734 conditions per place. [2021-03-25 12:18:39,963 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 425 selfloop transitions, 103 changer transitions 4/540 dead transitions. [2021-03-25 12:18:39,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 540 transitions, 16544 flow [2021-03-25 12:18:39,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:39,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2021-03-25 12:18:39,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26370967741935486 [2021-03-25 12:18:39,965 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 327 transitions. [2021-03-25 12:18:39,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 327 transitions. [2021-03-25 12:18:39,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:39,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 327 transitions. [2021-03-25 12:18:39,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:39,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:39,966 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:39,966 INFO L185 Difference]: Start difference. First operand has 536 places, 531 transitions, 15215 flow. Second operand 10 states and 327 transitions. [2021-03-25 12:18:39,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 540 transitions, 16544 flow [2021-03-25 12:18:40,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 540 transitions, 16191 flow, removed 123 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:40,748 INFO L241 Difference]: Finished difference. Result has 538 places, 530 transitions, 15095 flow [2021-03-25 12:18:40,749 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14862, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15095, PETRI_PLACES=538, PETRI_TRANSITIONS=530} [2021-03-25 12:18:40,749 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 491 predicate places. [2021-03-25 12:18:40,749 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:40,749 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 538 places, 530 transitions, 15095 flow [2021-03-25 12:18:40,749 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 538 places, 530 transitions, 15095 flow [2021-03-25 12:18:40,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 536 places, 530 transitions, 15095 flow [2021-03-25 12:18:40,960 INFO L129 PetriNetUnfolder]: 353/1002 cut-off events. [2021-03-25 12:18:40,961 INFO L130 PetriNetUnfolder]: For 130967/131041 co-relation queries the response was YES. [2021-03-25 12:18:40,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16892 conditions, 1002 events. 353/1002 cut-off events. For 130967/131041 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 8018 event pairs, 30 based on Foata normal form. 5/1003 useless extension candidates. Maximal degree in co-relation 16658. Up to 355 conditions per place. [2021-03-25 12:18:40,988 INFO L142 LiptonReduction]: Number of co-enabled transitions 806 [2021-03-25 12:18:41,019 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:41,019 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:41,019 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 270 [2021-03-25 12:18:41,020 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 530 transitions, 15095 flow [2021-03-25 12:18:41,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:41,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:41,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:41,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-03-25 12:18:41,020 INFO L428 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:41,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:41,020 INFO L82 PathProgramCache]: Analyzing trace with hash 447361780, now seen corresponding path program 13 times [2021-03-25 12:18:41,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:41,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053602033] [2021-03-25 12:18:41,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:41,036 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:41,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:41,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:41,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:41,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:41,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:41,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:41,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:41,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:41,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:41,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:41,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:41,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:41,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:41,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:41,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:41,105 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:41,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:41,109 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:41,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:41,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053602033] [2021-03-25 12:18:41,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:41,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:41,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665363045] [2021-03-25 12:18:41,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:41,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:41,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:41,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:41,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:41,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 530 transitions, 15095 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:41,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:41,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:41,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:41,772 INFO L129 PetriNetUnfolder]: 369/1033 cut-off events. [2021-03-25 12:18:41,772 INFO L130 PetriNetUnfolder]: For 138689/138768 co-relation queries the response was YES. [2021-03-25 12:18:41,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18141 conditions, 1033 events. 369/1033 cut-off events. For 138689/138768 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 8105 event pairs, 45 based on Foata normal form. 38/1070 useless extension candidates. Maximal degree in co-relation 17903. Up to 807 conditions per place. [2021-03-25 12:18:41,792 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 486 selfloop transitions, 38 changer transitions 3/535 dead transitions. [2021-03-25 12:18:41,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 535 transitions, 16342 flow [2021-03-25 12:18:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:41,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 362 transitions. [2021-03-25 12:18:41,793 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24327956989247312 [2021-03-25 12:18:41,793 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 362 transitions. [2021-03-25 12:18:41,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 362 transitions. [2021-03-25 12:18:41,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:41,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 362 transitions. [2021-03-25 12:18:41,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.166666666666668) internal successors, (362), 12 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:41,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:41,794 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:41,794 INFO L185 Difference]: Start difference. First operand has 536 places, 530 transitions, 15095 flow. Second operand 12 states and 362 transitions. [2021-03-25 12:18:41,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 535 transitions, 16342 flow [2021-03-25 12:18:42,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 535 transitions, 16098 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:42,594 INFO L241 Difference]: Finished difference. Result has 541 places, 530 transitions, 14977 flow [2021-03-25 12:18:42,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14851, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14977, PETRI_PLACES=541, PETRI_TRANSITIONS=530} [2021-03-25 12:18:42,595 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 494 predicate places. [2021-03-25 12:18:42,595 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:42,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 541 places, 530 transitions, 14977 flow [2021-03-25 12:18:42,595 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 541 places, 530 transitions, 14977 flow [2021-03-25 12:18:42,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 540 places, 530 transitions, 14977 flow [2021-03-25 12:18:42,805 INFO L129 PetriNetUnfolder]: 350/1005 cut-off events. [2021-03-25 12:18:42,805 INFO L130 PetriNetUnfolder]: For 131658/131718 co-relation queries the response was YES. [2021-03-25 12:18:42,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16801 conditions, 1005 events. 350/1005 cut-off events. For 131658/131718 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8067 event pairs, 28 based on Foata normal form. 9/1011 useless extension candidates. Maximal degree in co-relation 16556. Up to 352 conditions per place. [2021-03-25 12:18:42,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 808 [2021-03-25 12:18:42,863 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:42,863 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:42,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 268 [2021-03-25 12:18:42,863 INFO L480 AbstractCegarLoop]: Abstraction has has 540 places, 530 transitions, 14977 flow [2021-03-25 12:18:42,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:42,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:42,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:42,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-03-25 12:18:42,864 INFO L428 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:42,864 INFO L82 PathProgramCache]: Analyzing trace with hash -898068136, now seen corresponding path program 14 times [2021-03-25 12:18:42,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:42,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121065107] [2021-03-25 12:18:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:42,869 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:42,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:42,874 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:42,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:42,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:42,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:42,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:42,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:42,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:42,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:42,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:42,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:42,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:42,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:42,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:42,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:42,933 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:42,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:42,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121065107] [2021-03-25 12:18:42,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:42,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:42,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671880862] [2021-03-25 12:18:42,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:42,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:42,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:42,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:42,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:42,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 530 transitions, 14977 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:42,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:42,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:42,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:43,503 INFO L129 PetriNetUnfolder]: 368/1033 cut-off events. [2021-03-25 12:18:43,503 INFO L130 PetriNetUnfolder]: For 137236/137315 co-relation queries the response was YES. [2021-03-25 12:18:43,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18030 conditions, 1033 events. 368/1033 cut-off events. For 137236/137315 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8062 event pairs, 44 based on Foata normal form. 38/1070 useless extension candidates. Maximal degree in co-relation 17780. Up to 806 conditions per place. [2021-03-25 12:18:43,524 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 487 selfloop transitions, 33 changer transitions 7/535 dead transitions. [2021-03-25 12:18:43,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 535 transitions, 16209 flow [2021-03-25 12:18:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:43,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:18:43,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24919354838709679 [2021-03-25 12:18:43,526 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:18:43,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:18:43,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:43,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:18:43,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:43,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:43,527 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:43,527 INFO L185 Difference]: Start difference. First operand has 540 places, 530 transitions, 14977 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:18:43,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 535 transitions, 16209 flow [2021-03-25 12:18:44,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 535 transitions, 15994 flow, removed 54 selfloop flow, removed 12 redundant places. [2021-03-25 12:18:44,312 INFO L241 Difference]: Finished difference. Result has 540 places, 526 transitions, 14691 flow [2021-03-25 12:18:44,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14764, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14691, PETRI_PLACES=540, PETRI_TRANSITIONS=526} [2021-03-25 12:18:44,313 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 493 predicate places. [2021-03-25 12:18:44,313 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:44,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 540 places, 526 transitions, 14691 flow [2021-03-25 12:18:44,313 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 540 places, 526 transitions, 14691 flow [2021-03-25 12:18:44,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 535 places, 526 transitions, 14691 flow [2021-03-25 12:18:44,525 INFO L129 PetriNetUnfolder]: 349/1000 cut-off events. [2021-03-25 12:18:44,526 INFO L130 PetriNetUnfolder]: For 130547/130610 co-relation queries the response was YES. [2021-03-25 12:18:44,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16693 conditions, 1000 events. 349/1000 cut-off events. For 130547/130610 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7978 event pairs, 23 based on Foata normal form. 3/999 useless extension candidates. Maximal degree in co-relation 16457. Up to 350 conditions per place. [2021-03-25 12:18:44,553 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 12:18:44,584 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:44,584 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:44,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 271 [2021-03-25 12:18:44,585 INFO L480 AbstractCegarLoop]: Abstraction has has 535 places, 526 transitions, 14691 flow [2021-03-25 12:18:44,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:44,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:44,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:44,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-03-25 12:18:44,585 INFO L428 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:44,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:44,585 INFO L82 PathProgramCache]: Analyzing trace with hash 783250184, now seen corresponding path program 15 times [2021-03-25 12:18:44,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:44,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027912246] [2021-03-25 12:18:44,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:44,596 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:44,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:44,601 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:44,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:44,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:44,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:44,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:44,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:44,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:44,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:44,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:44,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:44,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:44,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:44,650 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:44,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:44,663 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:44,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:44,677 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:44,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:44,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027912246] [2021-03-25 12:18:44,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:44,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:44,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253691051] [2021-03-25 12:18:44,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:44,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:44,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:44,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:44,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:44,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 526 transitions, 14691 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:44,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:44,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:44,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:45,272 INFO L129 PetriNetUnfolder]: 366/1026 cut-off events. [2021-03-25 12:18:45,272 INFO L130 PetriNetUnfolder]: For 134860/134921 co-relation queries the response was YES. [2021-03-25 12:18:45,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17825 conditions, 1026 events. 366/1026 cut-off events. For 134860/134921 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8020 event pairs, 44 based on Foata normal form. 38/1064 useless extension candidates. Maximal degree in co-relation 17585. Up to 796 conditions per place. [2021-03-25 12:18:45,291 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 478 selfloop transitions, 41 changer transitions 4/531 dead transitions. [2021-03-25 12:18:45,291 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 531 transitions, 15828 flow [2021-03-25 12:18:45,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:18:45,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:18:45,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 365 transitions. [2021-03-25 12:18:45,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2452956989247312 [2021-03-25 12:18:45,292 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 365 transitions. [2021-03-25 12:18:45,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 365 transitions. [2021-03-25 12:18:45,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:45,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 365 transitions. [2021-03-25 12:18:45,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.416666666666668) internal successors, (365), 12 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:45,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:45,294 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:45,294 INFO L185 Difference]: Start difference. First operand has 535 places, 526 transitions, 14691 flow. Second operand 12 states and 365 transitions. [2021-03-25 12:18:45,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 531 transitions, 15828 flow [2021-03-25 12:18:46,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 531 transitions, 15710 flow, removed 12 selfloop flow, removed 11 redundant places. [2021-03-25 12:18:46,116 INFO L241 Difference]: Finished difference. Result has 537 places, 524 transitions, 14624 flow [2021-03-25 12:18:46,116 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14575, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14624, PETRI_PLACES=537, PETRI_TRANSITIONS=524} [2021-03-25 12:18:46,116 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 490 predicate places. [2021-03-25 12:18:46,116 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:46,116 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 537 places, 524 transitions, 14624 flow [2021-03-25 12:18:46,117 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 537 places, 524 transitions, 14624 flow [2021-03-25 12:18:46,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 536 places, 524 transitions, 14624 flow [2021-03-25 12:18:46,354 INFO L129 PetriNetUnfolder]: 348/997 cut-off events. [2021-03-25 12:18:46,354 INFO L130 PetriNetUnfolder]: For 127117/127158 co-relation queries the response was YES. [2021-03-25 12:18:46,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16695 conditions, 997 events. 348/997 cut-off events. For 127117/127158 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7997 event pairs, 26 based on Foata normal form. 3/997 useless extension candidates. Maximal degree in co-relation 16465. Up to 351 conditions per place. [2021-03-25 12:18:46,383 INFO L142 LiptonReduction]: Number of co-enabled transitions 798 [2021-03-25 12:18:46,414 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:46,414 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:46,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 298 [2021-03-25 12:18:46,415 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 524 transitions, 14624 flow [2021-03-25 12:18:46,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:46,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:46,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:46,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-03-25 12:18:46,415 INFO L428 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:46,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:46,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1763687304, now seen corresponding path program 16 times [2021-03-25 12:18:46,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:46,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054640485] [2021-03-25 12:18:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:46,421 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:46,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:46,426 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:46,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:46,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:46,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:46,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:46,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:46,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:46,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:46,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:46,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:46,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:46,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:46,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:46,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:46,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:46,498 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:46,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:46,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054640485] [2021-03-25 12:18:46,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:46,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:46,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568842213] [2021-03-25 12:18:46,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:46,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:46,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:46,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:46,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 524 transitions, 14624 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:46,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:46,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:46,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:47,113 INFO L129 PetriNetUnfolder]: 366/1018 cut-off events. [2021-03-25 12:18:47,113 INFO L130 PetriNetUnfolder]: For 133957/134036 co-relation queries the response was YES. [2021-03-25 12:18:47,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17729 conditions, 1018 events. 366/1018 cut-off events. For 133957/134036 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7916 event pairs, 43 based on Foata normal form. 47/1065 useless extension candidates. Maximal degree in co-relation 17496. Up to 785 conditions per place. [2021-03-25 12:18:47,133 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 462 selfloop transitions, 53 changer transitions 4/527 dead transitions. [2021-03-25 12:18:47,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 527 transitions, 15706 flow [2021-03-25 12:18:47,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2021-03-25 12:18:47,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25483870967741934 [2021-03-25 12:18:47,135 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 316 transitions. [2021-03-25 12:18:47,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 316 transitions. [2021-03-25 12:18:47,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:47,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 316 transitions. [2021-03-25 12:18:47,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.6) internal successors, (316), 10 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:47,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:47,136 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:47,136 INFO L185 Difference]: Start difference. First operand has 536 places, 524 transitions, 14624 flow. Second operand 10 states and 316 transitions. [2021-03-25 12:18:47,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 527 transitions, 15706 flow [2021-03-25 12:18:47,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 527 transitions, 15576 flow, removed 3 selfloop flow, removed 14 redundant places. [2021-03-25 12:18:47,914 INFO L241 Difference]: Finished difference. Result has 532 places, 521 transitions, 14602 flow [2021-03-25 12:18:47,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14494, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14602, PETRI_PLACES=532, PETRI_TRANSITIONS=521} [2021-03-25 12:18:47,914 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 485 predicate places. [2021-03-25 12:18:47,914 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:47,914 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 532 places, 521 transitions, 14602 flow [2021-03-25 12:18:47,914 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 532 places, 521 transitions, 14602 flow [2021-03-25 12:18:47,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 530 places, 521 transitions, 14602 flow [2021-03-25 12:18:48,149 INFO L129 PetriNetUnfolder]: 346/986 cut-off events. [2021-03-25 12:18:48,150 INFO L130 PetriNetUnfolder]: For 131537/131599 co-relation queries the response was YES. [2021-03-25 12:18:48,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16472 conditions, 986 events. 346/986 cut-off events. For 131537/131599 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7878 event pairs, 29 based on Foata normal form. 11/994 useless extension candidates. Maximal degree in co-relation 16235. Up to 347 conditions per place. [2021-03-25 12:18:48,176 INFO L142 LiptonReduction]: Number of co-enabled transitions 796 [2021-03-25 12:18:48,205 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:48,205 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:48,205 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 291 [2021-03-25 12:18:48,205 INFO L480 AbstractCegarLoop]: Abstraction has has 530 places, 521 transitions, 14602 flow [2021-03-25 12:18:48,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:48,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:48,205 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:48,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-03-25 12:18:48,205 INFO L428 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:48,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:48,205 INFO L82 PathProgramCache]: Analyzing trace with hash 764816158, now seen corresponding path program 17 times [2021-03-25 12:18:48,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:48,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596053904] [2021-03-25 12:18:48,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:48,211 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:48,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:48,216 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:48,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:48,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:48,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:48,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:48,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:48,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:48,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:48,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:48,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:48,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:48,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:48,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:48,278 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:48,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:48,292 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:48,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:48,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596053904] [2021-03-25 12:18:48,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:48,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:48,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846068756] [2021-03-25 12:18:48,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:48,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:48,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:48,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:48,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:48,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 521 transitions, 14602 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:48,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:48,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:48,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:48,866 INFO L129 PetriNetUnfolder]: 365/1011 cut-off events. [2021-03-25 12:18:48,866 INFO L130 PetriNetUnfolder]: For 133684/133763 co-relation queries the response was YES. [2021-03-25 12:18:48,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17703 conditions, 1011 events. 365/1011 cut-off events. For 133684/133763 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7824 event pairs, 44 based on Foata normal form. 38/1048 useless extension candidates. Maximal degree in co-relation 17462. Up to 792 conditions per place. [2021-03-25 12:18:48,887 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 476 selfloop transitions, 31 changer transitions 9/524 dead transitions. [2021-03-25 12:18:48,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 524 transitions, 15667 flow [2021-03-25 12:18:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 335 transitions. [2021-03-25 12:18:48,888 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24560117302052786 [2021-03-25 12:18:48,888 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 335 transitions. [2021-03-25 12:18:48,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 335 transitions. [2021-03-25 12:18:48,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:48,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 335 transitions. [2021-03-25 12:18:48,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.454545454545453) internal successors, (335), 11 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:48,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:48,889 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:48,889 INFO L185 Difference]: Start difference. First operand has 530 places, 521 transitions, 14602 flow. Second operand 11 states and 335 transitions. [2021-03-25 12:18:48,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 524 transitions, 15667 flow [2021-03-25 12:18:49,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 524 transitions, 15528 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 12:18:49,634 INFO L241 Difference]: Finished difference. Result has 530 places, 513 transitions, 14296 flow [2021-03-25 12:18:49,635 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14463, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14296, PETRI_PLACES=530, PETRI_TRANSITIONS=513} [2021-03-25 12:18:49,635 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 483 predicate places. [2021-03-25 12:18:49,635 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:49,635 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 530 places, 513 transitions, 14296 flow [2021-03-25 12:18:49,635 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 530 places, 513 transitions, 14296 flow [2021-03-25 12:18:49,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 522 places, 513 transitions, 14296 flow [2021-03-25 12:18:49,834 INFO L129 PetriNetUnfolder]: 346/980 cut-off events. [2021-03-25 12:18:49,835 INFO L130 PetriNetUnfolder]: For 125314/125358 co-relation queries the response was YES. [2021-03-25 12:18:49,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16391 conditions, 980 events. 346/980 cut-off events. For 125314/125358 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7757 event pairs, 26 based on Foata normal form. 2/978 useless extension candidates. Maximal degree in co-relation 16165. Up to 346 conditions per place. [2021-03-25 12:18:49,860 INFO L142 LiptonReduction]: Number of co-enabled transitions 778 [2021-03-25 12:18:49,889 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:49,889 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:49,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-25 12:18:49,889 INFO L480 AbstractCegarLoop]: Abstraction has has 522 places, 513 transitions, 14296 flow [2021-03-25 12:18:49,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:49,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:49,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:49,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-03-25 12:18:49,889 INFO L428 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:49,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:49,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1366950270, now seen corresponding path program 18 times [2021-03-25 12:18:49,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:49,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715982759] [2021-03-25 12:18:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:49,900 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:49,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:49,905 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:49,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:49,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:49,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:49,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:49,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:49,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:49,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:49,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:49,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:49,949 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:49,955 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:49,967 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:49,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:49,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715982759] [2021-03-25 12:18:49,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:49,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:49,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557302329] [2021-03-25 12:18:49,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:49,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:49,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:49,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:49,970 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:49,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 513 transitions, 14296 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:49,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:49,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:49,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:50,484 INFO L129 PetriNetUnfolder]: 363/1003 cut-off events. [2021-03-25 12:18:50,484 INFO L130 PetriNetUnfolder]: For 132032/132111 co-relation queries the response was YES. [2021-03-25 12:18:50,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17505 conditions, 1003 events. 363/1003 cut-off events. For 132032/132111 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7749 event pairs, 44 based on Foata normal form. 38/1040 useless extension candidates. Maximal degree in co-relation 17276. Up to 789 conditions per place. [2021-03-25 12:18:50,502 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 472 selfloop transitions, 33 changer transitions 4/517 dead transitions. [2021-03-25 12:18:50,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 517 transitions, 15395 flow [2021-03-25 12:18:50,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2021-03-25 12:18:50,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2467741935483871 [2021-03-25 12:18:50,504 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 306 transitions. [2021-03-25 12:18:50,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 306 transitions. [2021-03-25 12:18:50,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:50,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 306 transitions. [2021-03-25 12:18:50,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.6) internal successors, (306), 10 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:50,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:50,504 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:50,505 INFO L185 Difference]: Start difference. First operand has 522 places, 513 transitions, 14296 flow. Second operand 10 states and 306 transitions. [2021-03-25 12:18:50,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 517 transitions, 15395 flow [2021-03-25 12:18:51,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 517 transitions, 15210 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-25 12:18:51,251 INFO L241 Difference]: Finished difference. Result has 518 places, 511 transitions, 14160 flow [2021-03-25 12:18:51,251 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14111, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14160, PETRI_PLACES=518, PETRI_TRANSITIONS=511} [2021-03-25 12:18:51,251 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 471 predicate places. [2021-03-25 12:18:51,252 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:51,252 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 518 places, 511 transitions, 14160 flow [2021-03-25 12:18:51,252 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 518 places, 511 transitions, 14160 flow [2021-03-25 12:18:51,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 511 transitions, 14160 flow [2021-03-25 12:18:51,450 INFO L129 PetriNetUnfolder]: 344/987 cut-off events. [2021-03-25 12:18:51,450 INFO L130 PetriNetUnfolder]: For 125835/125895 co-relation queries the response was YES. [2021-03-25 12:18:51,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16351 conditions, 987 events. 344/987 cut-off events. For 125835/125895 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7879 event pairs, 26 based on Foata normal form. 3/987 useless extension candidates. Maximal degree in co-relation 16128. Up to 347 conditions per place. [2021-03-25 12:18:51,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 778 [2021-03-25 12:18:51,505 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:51,506 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:51,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-25 12:18:51,506 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 511 transitions, 14160 flow [2021-03-25 12:18:51,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:51,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:51,506 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:51,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-03-25 12:18:51,506 INFO L428 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:51,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:51,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1221272680, now seen corresponding path program 19 times [2021-03-25 12:18:51,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:51,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003837337] [2021-03-25 12:18:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:51,514 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:51,518 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:51,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:51,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:51,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:51,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:51,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:51,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:51,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:51,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:51,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:51,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:51,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:51,574 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:51,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:51,587 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:51,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:51,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003837337] [2021-03-25 12:18:51,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:51,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:51,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28381185] [2021-03-25 12:18:51,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:51,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:51,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:51,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:51,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:51,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 511 transitions, 14160 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:51,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:51,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:51,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:52,131 INFO L129 PetriNetUnfolder]: 361/1000 cut-off events. [2021-03-25 12:18:52,131 INFO L130 PetriNetUnfolder]: For 131712/131796 co-relation queries the response was YES. [2021-03-25 12:18:52,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17367 conditions, 1000 events. 361/1000 cut-off events. For 131712/131796 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7710 event pairs, 44 based on Foata normal form. 45/1044 useless extension candidates. Maximal degree in co-relation 17137. Up to 782 conditions per place. [2021-03-25 12:18:52,149 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 469 selfloop transitions, 34 changer transitions 4/515 dead transitions. [2021-03-25 12:18:52,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 515 transitions, 15213 flow [2021-03-25 12:18:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:18:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:18:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 386 transitions. [2021-03-25 12:18:52,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23945409429280398 [2021-03-25 12:18:52,151 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 386 transitions. [2021-03-25 12:18:52,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 386 transitions. [2021-03-25 12:18:52,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:52,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 386 transitions. [2021-03-25 12:18:52,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.692307692307693) internal successors, (386), 13 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:52,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:52,152 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 124.0) internal successors, (1736), 14 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:52,152 INFO L185 Difference]: Start difference. First operand has 514 places, 511 transitions, 14160 flow. Second operand 13 states and 386 transitions. [2021-03-25 12:18:52,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 515 transitions, 15213 flow [2021-03-25 12:18:52,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 515 transitions, 15093 flow, removed 14 selfloop flow, removed 10 redundant places. [2021-03-25 12:18:52,836 INFO L241 Difference]: Finished difference. Result has 517 places, 508 transitions, 13994 flow [2021-03-25 12:18:52,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14042, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=511, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13994, PETRI_PLACES=517, PETRI_TRANSITIONS=508} [2021-03-25 12:18:52,836 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 470 predicate places. [2021-03-25 12:18:52,836 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:52,836 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 508 transitions, 13994 flow [2021-03-25 12:18:52,836 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 508 transitions, 13994 flow [2021-03-25 12:18:52,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 508 transitions, 13994 flow [2021-03-25 12:18:53,026 INFO L129 PetriNetUnfolder]: 343/982 cut-off events. [2021-03-25 12:18:53,027 INFO L130 PetriNetUnfolder]: For 122056/122093 co-relation queries the response was YES. [2021-03-25 12:18:53,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16209 conditions, 982 events. 343/982 cut-off events. For 122056/122093 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7807 event pairs, 27 based on Foata normal form. 1/980 useless extension candidates. Maximal degree in co-relation 15986. Up to 347 conditions per place. [2021-03-25 12:18:53,050 INFO L142 LiptonReduction]: Number of co-enabled transitions 770 [2021-03-25 12:18:53,079 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:53,079 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:53,079 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 243 [2021-03-25 12:18:53,079 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 508 transitions, 13994 flow [2021-03-25 12:18:53,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:53,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:53,079 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:53,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-03-25 12:18:53,080 INFO L428 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:53,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1322050734, now seen corresponding path program 20 times [2021-03-25 12:18:53,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:53,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484538596] [2021-03-25 12:18:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:53,085 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:53,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:53,090 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:53,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:53,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:53,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:53,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:53,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:53,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:53,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:53,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:53,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:53,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:53,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:53,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:53,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:53,144 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:18:53,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:53,147 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:53,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:53,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484538596] [2021-03-25 12:18:53,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:53,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:18:53,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589099552] [2021-03-25 12:18:53,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:18:53,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:53,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:18:53,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:18:53,151 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:53,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 508 transitions, 13994 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:53,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:53,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:53,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:53,725 INFO L129 PetriNetUnfolder]: 364/1003 cut-off events. [2021-03-25 12:18:53,726 INFO L130 PetriNetUnfolder]: For 132904/132981 co-relation queries the response was YES. [2021-03-25 12:18:53,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17544 conditions, 1003 events. 364/1003 cut-off events. For 132904/132981 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7720 event pairs, 41 based on Foata normal form. 39/1041 useless extension candidates. Maximal degree in co-relation 17321. Up to 769 conditions per place. [2021-03-25 12:18:53,743 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 452 selfloop transitions, 62 changer transitions 5/527 dead transitions. [2021-03-25 12:18:53,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 527 transitions, 16140 flow [2021-03-25 12:18:53,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:53,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:53,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 349 transitions. [2021-03-25 12:18:53,744 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2558651026392962 [2021-03-25 12:18:53,744 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 349 transitions. [2021-03-25 12:18:53,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 349 transitions. [2021-03-25 12:18:53,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:53,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 349 transitions. [2021-03-25 12:18:53,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.727272727272727) internal successors, (349), 11 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:53,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:53,745 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:53,745 INFO L185 Difference]: Start difference. First operand has 514 places, 508 transitions, 13994 flow. Second operand 11 states and 349 transitions. [2021-03-25 12:18:53,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 527 transitions, 16140 flow [2021-03-25 12:18:54,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 527 transitions, 15926 flow, removed 29 selfloop flow, removed 15 redundant places. [2021-03-25 12:18:54,435 INFO L241 Difference]: Finished difference. Result has 512 places, 519 transitions, 14780 flow [2021-03-25 12:18:54,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=13804, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14780, PETRI_PLACES=512, PETRI_TRANSITIONS=519} [2021-03-25 12:18:54,436 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 465 predicate places. [2021-03-25 12:18:54,436 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:54,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 519 transitions, 14780 flow [2021-03-25 12:18:54,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 519 transitions, 14780 flow [2021-03-25 12:18:54,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 519 transitions, 14780 flow [2021-03-25 12:18:54,628 INFO L129 PetriNetUnfolder]: 347/971 cut-off events. [2021-03-25 12:18:54,628 INFO L130 PetriNetUnfolder]: For 121870/121915 co-relation queries the response was YES. [2021-03-25 12:18:54,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16143 conditions, 971 events. 347/971 cut-off events. For 121870/121915 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7683 event pairs, 29 based on Foata normal form. 9/976 useless extension candidates. Maximal degree in co-relation 15918. Up to 350 conditions per place. [2021-03-25 12:18:54,651 INFO L142 LiptonReduction]: Number of co-enabled transitions 764 [2021-03-25 12:18:54,681 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:54,681 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:54,681 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 245 [2021-03-25 12:18:54,682 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 519 transitions, 14780 flow [2021-03-25 12:18:54,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:54,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:54,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:54,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-03-25 12:18:54,682 INFO L428 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:54,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:54,682 INFO L82 PathProgramCache]: Analyzing trace with hash 931686994, now seen corresponding path program 21 times [2021-03-25 12:18:54,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:54,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021721369] [2021-03-25 12:18:54,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:54,688 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:54,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:54,692 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:54,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:54,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:54,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:54,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:54,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:54,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:54,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:54,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:54,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:54,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:54,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:54,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:54,748 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:54,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:54,762 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:54,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:54,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021721369] [2021-03-25 12:18:54,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:54,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:54,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714057645] [2021-03-25 12:18:54,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:54,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:54,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:54,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:54,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:54,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 519 transitions, 14780 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:54,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:54,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:54,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:55,341 INFO L129 PetriNetUnfolder]: 363/999 cut-off events. [2021-03-25 12:18:55,341 INFO L130 PetriNetUnfolder]: For 127005/127084 co-relation queries the response was YES. [2021-03-25 12:18:55,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17354 conditions, 999 events. 363/999 cut-off events. For 127005/127084 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7689 event pairs, 41 based on Foata normal form. 47/1046 useless extension candidates. Maximal degree in co-relation 17125. Up to 773 conditions per place. [2021-03-25 12:18:55,360 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 465 selfloop transitions, 46 changer transitions 5/524 dead transitions. [2021-03-25 12:18:55,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 524 transitions, 15921 flow [2021-03-25 12:18:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:55,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 314 transitions. [2021-03-25 12:18:55,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2532258064516129 [2021-03-25 12:18:55,362 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 314 transitions. [2021-03-25 12:18:55,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 314 transitions. [2021-03-25 12:18:55,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:55,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 314 transitions. [2021-03-25 12:18:55,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:55,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:55,362 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:55,362 INFO L185 Difference]: Start difference. First operand has 511 places, 519 transitions, 14780 flow. Second operand 10 states and 314 transitions. [2021-03-25 12:18:55,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 524 transitions, 15921 flow [2021-03-25 12:18:56,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 524 transitions, 15116 flow, removed 401 selfloop flow, removed 2 redundant places. [2021-03-25 12:18:56,051 INFO L241 Difference]: Finished difference. Result has 520 places, 516 transitions, 14029 flow [2021-03-25 12:18:56,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=13981, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14029, PETRI_PLACES=520, PETRI_TRANSITIONS=516} [2021-03-25 12:18:56,051 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 473 predicate places. [2021-03-25 12:18:56,052 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:56,052 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 520 places, 516 transitions, 14029 flow [2021-03-25 12:18:56,052 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 520 places, 516 transitions, 14029 flow [2021-03-25 12:18:56,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 516 places, 516 transitions, 14029 flow [2021-03-25 12:18:56,237 INFO L129 PetriNetUnfolder]: 343/963 cut-off events. [2021-03-25 12:18:56,238 INFO L130 PetriNetUnfolder]: For 114260/114315 co-relation queries the response was YES. [2021-03-25 12:18:56,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15479 conditions, 963 events. 343/963 cut-off events. For 114260/114315 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7631 event pairs, 31 based on Foata normal form. 13/973 useless extension candidates. Maximal degree in co-relation 15258. Up to 331 conditions per place. [2021-03-25 12:18:56,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 760 [2021-03-25 12:18:56,290 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:56,291 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:56,291 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 239 [2021-03-25 12:18:56,291 INFO L480 AbstractCegarLoop]: Abstraction has has 516 places, 516 transitions, 14029 flow [2021-03-25 12:18:56,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:56,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:56,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:56,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-03-25 12:18:56,291 INFO L428 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:56,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1321456088, now seen corresponding path program 22 times [2021-03-25 12:18:56,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:56,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9604470] [2021-03-25 12:18:56,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:56,297 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:56,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:56,301 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:56,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:56,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:56,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:56,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:56,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:56,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:56,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:56,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:56,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:56,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:56,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:56,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:56,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:56,358 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:18:56,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:18:56,372 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:56,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:56,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9604470] [2021-03-25 12:18:56,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:56,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:56,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886782066] [2021-03-25 12:18:56,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:56,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:56,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:56,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:56,375 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:56,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 516 transitions, 14029 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:56,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:56,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:56,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:57,009 INFO L129 PetriNetUnfolder]: 372/1009 cut-off events. [2021-03-25 12:18:57,009 INFO L130 PetriNetUnfolder]: For 125518/125654 co-relation queries the response was YES. [2021-03-25 12:18:57,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17340 conditions, 1009 events. 372/1009 cut-off events. For 125518/125654 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7709 event pairs, 36 based on Foata normal form. 43/1051 useless extension candidates. Maximal degree in co-relation 17120. Up to 722 conditions per place. [2021-03-25 12:18:57,028 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 394 selfloop transitions, 119 changer transitions 16/537 dead transitions. [2021-03-25 12:18:57,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 537 transitions, 16358 flow [2021-03-25 12:18:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:18:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:18:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 355 transitions. [2021-03-25 12:18:57,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2602639296187683 [2021-03-25 12:18:57,029 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 355 transitions. [2021-03-25 12:18:57,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 355 transitions. [2021-03-25 12:18:57,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:57,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 355 transitions. [2021-03-25 12:18:57,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.27272727272727) internal successors, (355), 11 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:57,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:57,030 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 124.0) internal successors, (1488), 12 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:57,030 INFO L185 Difference]: Start difference. First operand has 516 places, 516 transitions, 14029 flow. Second operand 11 states and 355 transitions. [2021-03-25 12:18:57,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 537 transitions, 16358 flow [2021-03-25 12:18:57,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 537 transitions, 16252 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:18:57,668 INFO L241 Difference]: Finished difference. Result has 520 places, 517 transitions, 14754 flow [2021-03-25 12:18:57,668 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=13923, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14754, PETRI_PLACES=520, PETRI_TRANSITIONS=517} [2021-03-25 12:18:57,668 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 473 predicate places. [2021-03-25 12:18:57,668 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:57,668 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 520 places, 517 transitions, 14754 flow [2021-03-25 12:18:57,668 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 520 places, 517 transitions, 14754 flow [2021-03-25 12:18:57,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 517 transitions, 14754 flow [2021-03-25 12:18:57,869 INFO L129 PetriNetUnfolder]: 344/952 cut-off events. [2021-03-25 12:18:57,869 INFO L130 PetriNetUnfolder]: For 125362/125450 co-relation queries the response was YES. [2021-03-25 12:18:57,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16060 conditions, 952 events. 344/952 cut-off events. For 125362/125450 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7458 event pairs, 26 based on Foata normal form. 15/966 useless extension candidates. Maximal degree in co-relation 15833. Up to 342 conditions per place. [2021-03-25 12:18:57,894 INFO L142 LiptonReduction]: Number of co-enabled transitions 760 [2021-03-25 12:18:57,924 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:57,924 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:57,924 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-03-25 12:18:57,924 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 517 transitions, 14754 flow [2021-03-25 12:18:57,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:57,924 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:57,924 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:57,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-03-25 12:18:57,924 INFO L428 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:57,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1849637184, now seen corresponding path program 23 times [2021-03-25 12:18:57,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:57,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869439048] [2021-03-25 12:18:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:57,930 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:57,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:57,935 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:57,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:57,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:57,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:57,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:57,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:57,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:57,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:57,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:57,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:57,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:57,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:57,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:57,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:57,991 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:57,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:58,005 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:58,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:58,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:58,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869439048] [2021-03-25 12:18:58,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:58,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:58,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443860341] [2021-03-25 12:18:58,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:58,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:58,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:58,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:58,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:58,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 517 transitions, 14754 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:58,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:58,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:58,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:18:58,562 INFO L129 PetriNetUnfolder]: 364/994 cut-off events. [2021-03-25 12:18:58,562 INFO L130 PetriNetUnfolder]: For 124950/125087 co-relation queries the response was YES. [2021-03-25 12:18:58,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17349 conditions, 994 events. 364/994 cut-off events. For 124950/125087 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7625 event pairs, 33 based on Foata normal form. 51/1045 useless extension candidates. Maximal degree in co-relation 17118. Up to 779 conditions per place. [2021-03-25 12:18:58,580 INFO L132 encePairwiseOnDemand]: 107/124 looper letters, 469 selfloop transitions, 40 changer transitions 4/521 dead transitions. [2021-03-25 12:18:58,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 521 transitions, 15869 flow [2021-03-25 12:18:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:18:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:18:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:18:58,581 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24919354838709679 [2021-03-25 12:18:58,581 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:18:58,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:18:58,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:18:58,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:18:58,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:58,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:58,582 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:58,582 INFO L185 Difference]: Start difference. First operand has 511 places, 517 transitions, 14754 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:18:58,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 521 transitions, 15869 flow [2021-03-25 12:18:59,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 521 transitions, 15398 flow, removed 225 selfloop flow, removed 4 redundant places. [2021-03-25 12:18:59,227 INFO L241 Difference]: Finished difference. Result has 518 places, 515 transitions, 14350 flow [2021-03-25 12:18:59,227 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14283, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14350, PETRI_PLACES=518, PETRI_TRANSITIONS=515} [2021-03-25 12:18:59,228 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 471 predicate places. [2021-03-25 12:18:59,228 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:18:59,228 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 518 places, 515 transitions, 14350 flow [2021-03-25 12:18:59,228 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 518 places, 515 transitions, 14350 flow [2021-03-25 12:18:59,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 515 transitions, 14350 flow [2021-03-25 12:18:59,446 INFO L129 PetriNetUnfolder]: 345/950 cut-off events. [2021-03-25 12:18:59,446 INFO L130 PetriNetUnfolder]: For 121367/121485 co-relation queries the response was YES. [2021-03-25 12:18:59,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15731 conditions, 950 events. 345/950 cut-off events. For 121367/121485 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7402 event pairs, 26 based on Foata normal form. 15/963 useless extension candidates. Maximal degree in co-relation 15511. Up to 334 conditions per place. [2021-03-25 12:18:59,467 INFO L142 LiptonReduction]: Number of co-enabled transitions 758 [2021-03-25 12:18:59,495 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:18:59,495 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:18:59,495 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 267 [2021-03-25 12:18:59,496 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 515 transitions, 14350 flow [2021-03-25 12:18:59,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:59,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:18:59,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:18:59,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-03-25 12:18:59,496 INFO L428 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:18:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:18:59,496 INFO L82 PathProgramCache]: Analyzing trace with hash -293907800, now seen corresponding path program 24 times [2021-03-25 12:18:59,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:18:59,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127101946] [2021-03-25 12:18:59,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:18:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:18:59,502 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:18:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:18:59,506 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:18:59,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:18:59,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:59,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:59,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:59,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:18:59,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:59,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:59,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:18:59,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:18:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:59,562 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:18:59,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:18:59,583 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:18:59,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:18:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:18:59,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127101946] [2021-03-25 12:18:59,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:18:59,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:18:59,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365077189] [2021-03-25 12:18:59,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:18:59,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:18:59,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:18:59,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:18:59,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 124 [2021-03-25 12:18:59,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 515 transitions, 14350 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:18:59,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:18:59,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 124 [2021-03-25 12:18:59,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:00,079 INFO L129 PetriNetUnfolder]: 363/986 cut-off events. [2021-03-25 12:19:00,079 INFO L130 PetriNetUnfolder]: For 119836/119922 co-relation queries the response was YES. [2021-03-25 12:19:00,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16928 conditions, 986 events. 363/986 cut-off events. For 119836/119922 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7485 event pairs, 38 based on Foata normal form. 45/1030 useless extension candidates. Maximal degree in co-relation 16706. Up to 787 conditions per place. [2021-03-25 12:19:00,098 INFO L132 encePairwiseOnDemand]: 109/124 looper letters, 478 selfloop transitions, 26 changer transitions 6/518 dead transitions. [2021-03-25 12:19:00,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 518 transitions, 15401 flow [2021-03-25 12:19:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:00,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 301 transitions. [2021-03-25 12:19:00,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24274193548387096 [2021-03-25 12:19:00,099 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 301 transitions. [2021-03-25 12:19:00,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 301 transitions. [2021-03-25 12:19:00,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:00,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 301 transitions. [2021-03-25 12:19:00,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.1) internal successors, (301), 10 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:00,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:00,100 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 124.0) internal successors, (1364), 11 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:00,100 INFO L185 Difference]: Start difference. First operand has 514 places, 515 transitions, 14350 flow. Second operand 10 states and 301 transitions. [2021-03-25 12:19:00,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 518 transitions, 15401 flow [2021-03-25 12:19:00,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 518 transitions, 15315 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:00,736 INFO L241 Difference]: Finished difference. Result has 515 places, 510 transitions, 14200 flow [2021-03-25 12:19:00,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=14264, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14200, PETRI_PLACES=515, PETRI_TRANSITIONS=510} [2021-03-25 12:19:00,736 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:19:00,736 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:00,736 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 510 transitions, 14200 flow [2021-03-25 12:19:00,737 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 510 transitions, 14200 flow [2021-03-25 12:19:00,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 510 transitions, 14200 flow [2021-03-25 12:19:00,929 INFO L129 PetriNetUnfolder]: 347/951 cut-off events. [2021-03-25 12:19:00,929 INFO L130 PetriNetUnfolder]: For 120766/120859 co-relation queries the response was YES. [2021-03-25 12:19:00,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15837 conditions, 951 events. 347/951 cut-off events. For 120766/120859 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7399 event pairs, 25 based on Foata normal form. 11/959 useless extension candidates. Maximal degree in co-relation 15619. Up to 337 conditions per place. [2021-03-25 12:19:00,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 752 [2021-03-25 12:19:01,042 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:01,042 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:19:01,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 306 [2021-03-25 12:19:01,042 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 509 transitions, 14194 flow [2021-03-25 12:19:01,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:01,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:01,042 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:01,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-03-25 12:19:01,043 INFO L428 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:01,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:01,043 INFO L82 PathProgramCache]: Analyzing trace with hash -398147168, now seen corresponding path program 25 times [2021-03-25 12:19:01,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:01,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497871173] [2021-03-25 12:19:01,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:01,048 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:01,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:01,053 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:01,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:01,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:01,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:01,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:01,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:01,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:01,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:01,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:01,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:01,084 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:01,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:01,087 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:01,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:01,098 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:01,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:01,110 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:01,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:01,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:01,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497871173] [2021-03-25 12:19:01,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:01,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:19:01,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316882878] [2021-03-25 12:19:01,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:19:01,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:01,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:19:01,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:19:01,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:01,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 509 transitions, 14194 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:01,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:01,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:01,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:01,623 INFO L129 PetriNetUnfolder]: 362/980 cut-off events. [2021-03-25 12:19:01,623 INFO L130 PetriNetUnfolder]: For 118826/118912 co-relation queries the response was YES. [2021-03-25 12:19:01,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16834 conditions, 980 events. 362/980 cut-off events. For 118826/118912 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7423 event pairs, 31 based on Foata normal form. 54/1034 useless extension candidates. Maximal degree in co-relation 16614. Up to 770 conditions per place. [2021-03-25 12:19:01,640 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 458 selfloop transitions, 42 changer transitions 4/512 dead transitions. [2021-03-25 12:19:01,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 512 transitions, 15242 flow [2021-03-25 12:19:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:19:01,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:19:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2021-03-25 12:19:01,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.258 [2021-03-25 12:19:01,642 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 258 transitions. [2021-03-25 12:19:01,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 258 transitions. [2021-03-25 12:19:01,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:01,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 258 transitions. [2021-03-25 12:19:01,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.25) internal successors, (258), 8 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:01,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:01,643 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:01,643 INFO L185 Difference]: Start difference. First operand has 506 places, 509 transitions, 14194 flow. Second operand 8 states and 258 transitions. [2021-03-25 12:19:01,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 512 transitions, 15242 flow [2021-03-25 12:19:02,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 512 transitions, 15074 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:02,253 INFO L241 Difference]: Finished difference. Result has 505 places, 506 transitions, 14065 flow [2021-03-25 12:19:02,253 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=14026, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14065, PETRI_PLACES=505, PETRI_TRANSITIONS=506} [2021-03-25 12:19:02,253 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 458 predicate places. [2021-03-25 12:19:02,253 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:02,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 505 places, 506 transitions, 14065 flow [2021-03-25 12:19:02,253 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 505 places, 506 transitions, 14065 flow [2021-03-25 12:19:02,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 503 places, 506 transitions, 14065 flow [2021-03-25 12:19:02,447 INFO L129 PetriNetUnfolder]: 343/947 cut-off events. [2021-03-25 12:19:02,447 INFO L130 PetriNetUnfolder]: For 119032/119110 co-relation queries the response was YES. [2021-03-25 12:19:02,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15523 conditions, 947 events. 343/947 cut-off events. For 119032/119110 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7384 event pairs, 29 based on Foata normal form. 16/962 useless extension candidates. Maximal degree in co-relation 15308. Up to 333 conditions per place. [2021-03-25 12:19:02,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 752 [2021-03-25 12:19:02,497 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:02,497 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:02,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 244 [2021-03-25 12:19:02,497 INFO L480 AbstractCegarLoop]: Abstraction has has 503 places, 506 transitions, 14065 flow [2021-03-25 12:19:02,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:02,497 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:02,497 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:02,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-03-25 12:19:02,497 INFO L428 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:02,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1835960326, now seen corresponding path program 26 times [2021-03-25 12:19:02,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:02,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029043538] [2021-03-25 12:19:02,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:02,503 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:02,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:02,508 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:02,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:02,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:02,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:02,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:02,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:02,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:02,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:02,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:02,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:02,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:02,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:02,550 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:02,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:02,563 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:02,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:02,576 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:02,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:02,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029043538] [2021-03-25 12:19:02,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:02,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:02,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457753460] [2021-03-25 12:19:02,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:02,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:02,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:02,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:02,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:02,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 506 transitions, 14065 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:02,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:02,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:02,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:03,127 INFO L129 PetriNetUnfolder]: 361/976 cut-off events. [2021-03-25 12:19:03,127 INFO L130 PetriNetUnfolder]: For 115515/115594 co-relation queries the response was YES. [2021-03-25 12:19:03,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16696 conditions, 976 events. 361/976 cut-off events. For 115515/115594 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7371 event pairs, 40 based on Foata normal form. 47/1023 useless extension candidates. Maximal degree in co-relation 16475. Up to 768 conditions per place. [2021-03-25 12:19:03,145 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 456 selfloop transitions, 42 changer transitions 3/509 dead transitions. [2021-03-25 12:19:03,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 509 transitions, 15107 flow [2021-03-25 12:19:03,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 309 transitions. [2021-03-25 12:19:03,146 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2472 [2021-03-25 12:19:03,146 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 309 transitions. [2021-03-25 12:19:03,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 309 transitions. [2021-03-25 12:19:03,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:03,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 309 transitions. [2021-03-25 12:19:03,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.9) internal successors, (309), 10 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:03,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:03,147 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:03,147 INFO L185 Difference]: Start difference. First operand has 503 places, 506 transitions, 14065 flow. Second operand 10 states and 309 transitions. [2021-03-25 12:19:03,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 509 transitions, 15107 flow [2021-03-25 12:19:03,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 503 places, 509 transitions, 14977 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:03,778 INFO L241 Difference]: Finished difference. Result has 504 places, 504 transitions, 14030 flow [2021-03-25 12:19:03,778 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=13935, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=506, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14030, PETRI_PLACES=504, PETRI_TRANSITIONS=504} [2021-03-25 12:19:03,778 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 457 predicate places. [2021-03-25 12:19:03,778 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:03,778 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 504 places, 504 transitions, 14030 flow [2021-03-25 12:19:03,778 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 504 places, 504 transitions, 14030 flow [2021-03-25 12:19:03,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 502 places, 504 transitions, 14030 flow [2021-03-25 12:19:03,968 INFO L129 PetriNetUnfolder]: 342/944 cut-off events. [2021-03-25 12:19:03,968 INFO L130 PetriNetUnfolder]: For 117415/117494 co-relation queries the response was YES. [2021-03-25 12:19:03,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15504 conditions, 944 events. 342/944 cut-off events. For 117415/117494 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7334 event pairs, 28 based on Foata normal form. 11/954 useless extension candidates. Maximal degree in co-relation 15259. Up to 333 conditions per place. [2021-03-25 12:19:03,993 INFO L142 LiptonReduction]: Number of co-enabled transitions 752 [2021-03-25 12:19:04,021 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:04,021 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:04,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 243 [2021-03-25 12:19:04,021 INFO L480 AbstractCegarLoop]: Abstraction has has 502 places, 504 transitions, 14030 flow [2021-03-25 12:19:04,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:04,022 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:04,022 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:04,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-03-25 12:19:04,022 INFO L428 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:04,022 INFO L82 PathProgramCache]: Analyzing trace with hash 975896504, now seen corresponding path program 27 times [2021-03-25 12:19:04,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:04,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735416125] [2021-03-25 12:19:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:04,027 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:04,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:04,032 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:04,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:04,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:04,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:04,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:04,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:04,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:04,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:04,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:04,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:04,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:04,077 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:04,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:04,089 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:04,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:04,103 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:04,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:04,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735416125] [2021-03-25 12:19:04,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:04,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:04,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87520811] [2021-03-25 12:19:04,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:04,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:04,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:04,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:04,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:04,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 504 transitions, 14030 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:04,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:04,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:04,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:04,636 INFO L129 PetriNetUnfolder]: 360/974 cut-off events. [2021-03-25 12:19:04,636 INFO L130 PetriNetUnfolder]: For 115066/115145 co-relation queries the response was YES. [2021-03-25 12:19:04,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16676 conditions, 974 events. 360/974 cut-off events. For 115066/115145 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7348 event pairs, 37 based on Foata normal form. 47/1021 useless extension candidates. Maximal degree in co-relation 16439. Up to 770 conditions per place. [2021-03-25 12:19:04,654 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 462 selfloop transitions, 29 changer transitions 8/507 dead transitions. [2021-03-25 12:19:04,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 507 transitions, 15068 flow [2021-03-25 12:19:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:04,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 303 transitions. [2021-03-25 12:19:04,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2424 [2021-03-25 12:19:04,656 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 303 transitions. [2021-03-25 12:19:04,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 303 transitions. [2021-03-25 12:19:04,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:04,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 303 transitions. [2021-03-25 12:19:04,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.3) internal successors, (303), 10 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:04,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:04,656 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:04,656 INFO L185 Difference]: Start difference. First operand has 502 places, 504 transitions, 14030 flow. Second operand 10 states and 303 transitions. [2021-03-25 12:19:04,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 507 transitions, 15068 flow [2021-03-25 12:19:05,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 507 transitions, 14959 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-25 12:19:05,309 INFO L241 Difference]: Finished difference. Result has 502 places, 497 transitions, 13753 flow [2021-03-25 12:19:05,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=13921, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13753, PETRI_PLACES=502, PETRI_TRANSITIONS=497} [2021-03-25 12:19:05,310 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 455 predicate places. [2021-03-25 12:19:05,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:05,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 497 transitions, 13753 flow [2021-03-25 12:19:05,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 497 transitions, 13753 flow [2021-03-25 12:19:05,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 495 places, 497 transitions, 13753 flow [2021-03-25 12:19:05,492 INFO L129 PetriNetUnfolder]: 345/946 cut-off events. [2021-03-25 12:19:05,492 INFO L130 PetriNetUnfolder]: For 117971/118062 co-relation queries the response was YES. [2021-03-25 12:19:05,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15536 conditions, 946 events. 345/946 cut-off events. For 117971/118062 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7363 event pairs, 26 based on Foata normal form. 14/957 useless extension candidates. Maximal degree in co-relation 15322. Up to 337 conditions per place. [2021-03-25 12:19:05,514 INFO L142 LiptonReduction]: Number of co-enabled transitions 748 [2021-03-25 12:19:05,542 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:05,542 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:05,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 232 [2021-03-25 12:19:05,542 INFO L480 AbstractCegarLoop]: Abstraction has has 495 places, 497 transitions, 13753 flow [2021-03-25 12:19:05,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:05,542 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:05,543 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:05,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-03-25 12:19:05,543 INFO L428 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash -238570702, now seen corresponding path program 1 times [2021-03-25 12:19:05,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:05,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658263440] [2021-03-25 12:19:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:05,551 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:05,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:05,556 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:05,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:05,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:05,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:05,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:05,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:05,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:05,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:05,601 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:19:05,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:19:05,607 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:19:05,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:19:05,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:05,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:19:05,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:05,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:05,660 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:19:05,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:19:05,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:05,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658263440] [2021-03-25 12:19:05,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:05,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:05,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549227576] [2021-03-25 12:19:05,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:05,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:05,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:05,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:05,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:05,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 497 transitions, 13753 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:05,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:05,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:05,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:06,399 INFO L129 PetriNetUnfolder]: 386/1054 cut-off events. [2021-03-25 12:19:06,399 INFO L130 PetriNetUnfolder]: For 137127/137195 co-relation queries the response was YES. [2021-03-25 12:19:06,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18488 conditions, 1054 events. 386/1054 cut-off events. For 137127/137195 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8121 event pairs, 21 based on Foata normal form. 52/1106 useless extension candidates. Maximal degree in co-relation 18272. Up to 714 conditions per place. [2021-03-25 12:19:06,419 INFO L132 encePairwiseOnDemand]: 108/125 looper letters, 410 selfloop transitions, 122 changer transitions 9/549 dead transitions. [2021-03-25 12:19:06,419 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 549 transitions, 17527 flow [2021-03-25 12:19:06,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:19:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:19:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 397 transitions. [2021-03-25 12:19:06,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26466666666666666 [2021-03-25 12:19:06,420 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 397 transitions. [2021-03-25 12:19:06,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 397 transitions. [2021-03-25 12:19:06,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:06,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 397 transitions. [2021-03-25 12:19:06,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 33.083333333333336) internal successors, (397), 12 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:06,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:06,422 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:06,422 INFO L185 Difference]: Start difference. First operand has 495 places, 497 transitions, 13753 flow. Second operand 12 states and 397 transitions. [2021-03-25 12:19:06,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 549 transitions, 17527 flow [2021-03-25 12:19:07,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 549 transitions, 17061 flow, removed 58 selfloop flow, removed 18 redundant places. [2021-03-25 12:19:07,125 INFO L241 Difference]: Finished difference. Result has 496 places, 530 transitions, 15348 flow [2021-03-25 12:19:07,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=13355, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15348, PETRI_PLACES=496, PETRI_TRANSITIONS=530} [2021-03-25 12:19:07,126 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 449 predicate places. [2021-03-25 12:19:07,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:07,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 530 transitions, 15348 flow [2021-03-25 12:19:07,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 530 transitions, 15348 flow [2021-03-25 12:19:07,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 493 places, 530 transitions, 15348 flow [2021-03-25 12:19:07,336 INFO L129 PetriNetUnfolder]: 369/1011 cut-off events. [2021-03-25 12:19:07,336 INFO L130 PetriNetUnfolder]: For 126974/127019 co-relation queries the response was YES. [2021-03-25 12:19:07,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17098 conditions, 1011 events. 369/1011 cut-off events. For 126974/127019 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7913 event pairs, 27 based on Foata normal form. 8/1013 useless extension candidates. Maximal degree in co-relation 16883. Up to 363 conditions per place. [2021-03-25 12:19:07,363 INFO L142 LiptonReduction]: Number of co-enabled transitions 800 [2021-03-25 12:19:07,395 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:07,395 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:07,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 269 [2021-03-25 12:19:07,395 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 530 transitions, 15348 flow [2021-03-25 12:19:07,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:07,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:07,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:07,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-03-25 12:19:07,395 INFO L428 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:07,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash 789472022, now seen corresponding path program 15 times [2021-03-25 12:19:07,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:07,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828539414] [2021-03-25 12:19:07,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:07,404 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:07,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:07,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:07,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:07,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:07,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:07,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:07,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:07,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:07,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:07,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:07,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:07,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:07,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:07,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:07,517 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:07,535 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:07,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:07,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828539414] [2021-03-25 12:19:07,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:07,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:19:07,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467408027] [2021-03-25 12:19:07,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:19:07,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:07,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:19:07,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:19:07,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:07,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 530 transitions, 15348 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:07,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:07,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:07,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:08,407 INFO L129 PetriNetUnfolder]: 422/1116 cut-off events. [2021-03-25 12:19:08,407 INFO L130 PetriNetUnfolder]: For 151139/151219 co-relation queries the response was YES. [2021-03-25 12:19:08,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20769 conditions, 1116 events. 422/1116 cut-off events. For 151139/151219 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 8630 event pairs, 45 based on Foata normal form. 43/1158 useless extension candidates. Maximal degree in co-relation 20552. Up to 840 conditions per place. [2021-03-25 12:19:08,428 INFO L132 encePairwiseOnDemand]: 110/125 looper letters, 486 selfloop transitions, 79 changer transitions 9/582 dead transitions. [2021-03-25 12:19:08,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 582 transitions, 20022 flow [2021-03-25 12:19:08,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 12:19:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 12:19:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 581 transitions. [2021-03-25 12:19:08,429 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24463157894736842 [2021-03-25 12:19:08,429 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 581 transitions. [2021-03-25 12:19:08,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 581 transitions. [2021-03-25 12:19:08,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:08,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 581 transitions. [2021-03-25 12:19:08,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 30.57894736842105) internal successors, (581), 19 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:08,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 125.0) internal successors, (2500), 20 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:08,431 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 125.0) internal successors, (2500), 20 states have internal predecessors, (2500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:08,431 INFO L185 Difference]: Start difference. First operand has 493 places, 530 transitions, 15348 flow. Second operand 19 states and 581 transitions. [2021-03-25 12:19:08,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 582 transitions, 20022 flow [2021-03-25 12:19:09,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 582 transitions, 19179 flow, removed 378 selfloop flow, removed 5 redundant places. [2021-03-25 12:19:09,217 INFO L241 Difference]: Finished difference. Result has 511 places, 565 transitions, 16994 flow [2021-03-25 12:19:09,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=14571, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=16994, PETRI_PLACES=511, PETRI_TRANSITIONS=565} [2021-03-25 12:19:09,217 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:19:09,217 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:09,217 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 565 transitions, 16994 flow [2021-03-25 12:19:09,217 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 565 transitions, 16994 flow [2021-03-25 12:19:09,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 565 transitions, 16994 flow [2021-03-25 12:19:09,459 INFO L129 PetriNetUnfolder]: 404/1101 cut-off events. [2021-03-25 12:19:09,459 INFO L130 PetriNetUnfolder]: For 146795/146819 co-relation queries the response was YES. [2021-03-25 12:19:09,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19108 conditions, 1101 events. 404/1101 cut-off events. For 146795/146819 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 8825 event pairs, 28 based on Foata normal form. 4/1103 useless extension candidates. Maximal degree in co-relation 18891. Up to 398 conditions per place. [2021-03-25 12:19:09,488 INFO L142 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-25 12:19:09,522 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:09,522 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:09,522 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-25 12:19:09,522 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 565 transitions, 16994 flow [2021-03-25 12:19:09,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:09,522 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:09,522 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:09,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-03-25 12:19:09,522 INFO L428 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:09,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:09,523 INFO L82 PathProgramCache]: Analyzing trace with hash 620494010, now seen corresponding path program 16 times [2021-03-25 12:19:09,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:09,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985913291] [2021-03-25 12:19:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:09,528 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:09,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:09,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:09,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:09,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:09,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:09,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:09,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:09,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:09,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:09,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:09,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:09,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:09,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:09,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:09,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:19:09,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:09,615 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:09,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:09,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985913291] [2021-03-25 12:19:09,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:09,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:09,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064076521] [2021-03-25 12:19:09,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:09,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:09,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:09,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:09,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:09,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 565 transitions, 16994 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:09,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:09,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:09,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:10,302 INFO L129 PetriNetUnfolder]: 420/1114 cut-off events. [2021-03-25 12:19:10,302 INFO L130 PetriNetUnfolder]: For 145429/145509 co-relation queries the response was YES. [2021-03-25 12:19:10,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20226 conditions, 1114 events. 420/1114 cut-off events. For 145429/145509 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 8604 event pairs, 51 based on Foata normal form. 54/1167 useless extension candidates. Maximal degree in co-relation 20007. Up to 880 conditions per place. [2021-03-25 12:19:10,324 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 517 selfloop transitions, 48 changer transitions 2/575 dead transitions. [2021-03-25 12:19:10,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 575 transitions, 18478 flow [2021-03-25 12:19:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:19:10,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:19:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 418 transitions. [2021-03-25 12:19:10,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23885714285714285 [2021-03-25 12:19:10,326 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 418 transitions. [2021-03-25 12:19:10,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 418 transitions. [2021-03-25 12:19:10,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:10,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 418 transitions. [2021-03-25 12:19:10,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.857142857142858) internal successors, (418), 14 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:10,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:10,327 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:10,327 INFO L185 Difference]: Start difference. First operand has 505 places, 565 transitions, 16994 flow. Second operand 14 states and 418 transitions. [2021-03-25 12:19:10,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 575 transitions, 18478 flow [2021-03-25 12:19:11,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 575 transitions, 17369 flow, removed 553 selfloop flow, removed 2 redundant places. [2021-03-25 12:19:11,114 INFO L241 Difference]: Finished difference. Result has 520 places, 571 transitions, 16241 flow [2021-03-25 12:19:11,115 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=15885, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16241, PETRI_PLACES=520, PETRI_TRANSITIONS=571} [2021-03-25 12:19:11,115 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 473 predicate places. [2021-03-25 12:19:11,115 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:11,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 520 places, 571 transitions, 16241 flow [2021-03-25 12:19:11,115 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 520 places, 571 transitions, 16241 flow [2021-03-25 12:19:11,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 519 places, 571 transitions, 16241 flow [2021-03-25 12:19:11,355 INFO L129 PetriNetUnfolder]: 405/1098 cut-off events. [2021-03-25 12:19:11,356 INFO L130 PetriNetUnfolder]: For 142410/142466 co-relation queries the response was YES. [2021-03-25 12:19:11,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18400 conditions, 1098 events. 405/1098 cut-off events. For 142410/142466 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 8688 event pairs, 31 based on Foata normal form. 12/1108 useless extension candidates. Maximal degree in co-relation 18148. Up to 371 conditions per place. [2021-03-25 12:19:11,385 INFO L142 LiptonReduction]: Number of co-enabled transitions 860 [2021-03-25 12:19:11,417 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:11,417 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:11,417 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 302 [2021-03-25 12:19:11,417 INFO L480 AbstractCegarLoop]: Abstraction has has 519 places, 571 transitions, 16241 flow [2021-03-25 12:19:11,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:11,417 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:11,417 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:11,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-03-25 12:19:11,417 INFO L428 AbstractCegarLoop]: === Iteration 379 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:11,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:11,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1795984654, now seen corresponding path program 17 times [2021-03-25 12:19:11,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:11,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504347089] [2021-03-25 12:19:11,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:11,423 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:11,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:11,428 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:11,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:11,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:11,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:11,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:11,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:11,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:11,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:11,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:11,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:11,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:11,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:11,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:11,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:11,506 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:19:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:11,510 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:11,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:11,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504347089] [2021-03-25 12:19:11,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:11,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:11,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245258823] [2021-03-25 12:19:11,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:11,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:11,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:11,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:11,514 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:11,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 571 transitions, 16241 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:11,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:11,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:11,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:12,254 INFO L129 PetriNetUnfolder]: 428/1139 cut-off events. [2021-03-25 12:19:12,254 INFO L130 PetriNetUnfolder]: For 143083/143144 co-relation queries the response was YES. [2021-03-25 12:19:12,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20000 conditions, 1139 events. 428/1139 cut-off events. For 143083/143144 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 8926 event pairs, 56 based on Foata normal form. 54/1193 useless extension candidates. Maximal degree in co-relation 19756. Up to 888 conditions per place. [2021-03-25 12:19:12,276 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 525 selfloop transitions, 53 changer transitions 4/590 dead transitions. [2021-03-25 12:19:12,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 590 transitions, 18409 flow [2021-03-25 12:19:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:19:12,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:19:12,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2021-03-25 12:19:12,278 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24733333333333332 [2021-03-25 12:19:12,278 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 371 transitions. [2021-03-25 12:19:12,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 371 transitions. [2021-03-25 12:19:12,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:12,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 371 transitions. [2021-03-25 12:19:12,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:12,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:12,279 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:12,279 INFO L185 Difference]: Start difference. First operand has 519 places, 571 transitions, 16241 flow. Second operand 12 states and 371 transitions. [2021-03-25 12:19:12,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 590 transitions, 18409 flow [2021-03-25 12:19:13,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 590 transitions, 18198 flow, removed 73 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:13,050 INFO L241 Difference]: Finished difference. Result has 525 places, 582 transitions, 16779 flow [2021-03-25 12:19:13,050 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=16030, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=16779, PETRI_PLACES=525, PETRI_TRANSITIONS=582} [2021-03-25 12:19:13,051 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 478 predicate places. [2021-03-25 12:19:13,051 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:13,051 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 525 places, 582 transitions, 16779 flow [2021-03-25 12:19:13,051 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 525 places, 582 transitions, 16779 flow [2021-03-25 12:19:13,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 524 places, 582 transitions, 16779 flow [2021-03-25 12:19:13,302 INFO L129 PetriNetUnfolder]: 412/1124 cut-off events. [2021-03-25 12:19:13,302 INFO L130 PetriNetUnfolder]: For 148038/148071 co-relation queries the response was YES. [2021-03-25 12:19:13,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18902 conditions, 1124 events. 412/1124 cut-off events. For 148038/148071 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 9042 event pairs, 35 based on Foata normal form. 3/1121 useless extension candidates. Maximal degree in co-relation 18646. Up to 374 conditions per place. [2021-03-25 12:19:13,333 INFO L142 LiptonReduction]: Number of co-enabled transitions 884 [2021-03-25 12:19:13,371 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:13,371 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:13,371 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 320 [2021-03-25 12:19:13,372 INFO L480 AbstractCegarLoop]: Abstraction has has 524 places, 582 transitions, 16779 flow [2021-03-25 12:19:13,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:13,372 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:13,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:13,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2021-03-25 12:19:13,372 INFO L428 AbstractCegarLoop]: === Iteration 380 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:13,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:13,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1690826467, now seen corresponding path program 1 times [2021-03-25 12:19:13,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:13,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610238236] [2021-03-25 12:19:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:13,378 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:13,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:13,383 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:13,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:13,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:13,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:13,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:13,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:13,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:13,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:13,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:13,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:13,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:13,467 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:13,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:13,477 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:13,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:13,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610238236] [2021-03-25 12:19:13,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:13,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:13,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957978031] [2021-03-25 12:19:13,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:13,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:13,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:13,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:13,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 125 [2021-03-25 12:19:13,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 582 transitions, 16779 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:13,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:13,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 125 [2021-03-25 12:19:13,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:14,320 INFO L129 PetriNetUnfolder]: 436/1176 cut-off events. [2021-03-25 12:19:14,320 INFO L130 PetriNetUnfolder]: For 157314/157394 co-relation queries the response was YES. [2021-03-25 12:19:14,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21031 conditions, 1176 events. 436/1176 cut-off events. For 157314/157394 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 9265 event pairs, 53 based on Foata normal form. 33/1208 useless extension candidates. Maximal degree in co-relation 20783. Up to 862 conditions per place. [2021-03-25 12:19:14,342 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 477 selfloop transitions, 121 changer transitions 12/618 dead transitions. [2021-03-25 12:19:14,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 618 transitions, 19962 flow [2021-03-25 12:19:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:19:14,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:19:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 464 transitions. [2021-03-25 12:19:14,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24746666666666667 [2021-03-25 12:19:14,343 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 464 transitions. [2021-03-25 12:19:14,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 464 transitions. [2021-03-25 12:19:14,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:14,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 464 transitions. [2021-03-25 12:19:14,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.933333333333334) internal successors, (464), 15 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:14,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:14,344 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:14,344 INFO L185 Difference]: Start difference. First operand has 524 places, 582 transitions, 16779 flow. Second operand 15 states and 464 transitions. [2021-03-25 12:19:14,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 618 transitions, 19962 flow [2021-03-25 12:19:15,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 618 transitions, 19670 flow, removed 139 selfloop flow, removed 4 redundant places. [2021-03-25 12:19:15,286 INFO L241 Difference]: Finished difference. Result has 540 places, 603 transitions, 18089 flow [2021-03-25 12:19:15,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=16497, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18089, PETRI_PLACES=540, PETRI_TRANSITIONS=603} [2021-03-25 12:19:15,287 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 493 predicate places. [2021-03-25 12:19:15,287 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:15,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 540 places, 603 transitions, 18089 flow [2021-03-25 12:19:15,287 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 540 places, 603 transitions, 18089 flow [2021-03-25 12:19:15,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 539 places, 603 transitions, 18089 flow [2021-03-25 12:19:15,560 INFO L129 PetriNetUnfolder]: 416/1145 cut-off events. [2021-03-25 12:19:15,561 INFO L130 PetriNetUnfolder]: For 159139/159187 co-relation queries the response was YES. [2021-03-25 12:19:15,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19631 conditions, 1145 events. 416/1145 cut-off events. For 159139/159187 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 9230 event pairs, 32 based on Foata normal form. 14/1155 useless extension candidates. Maximal degree in co-relation 19368. Up to 383 conditions per place. [2021-03-25 12:19:15,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 900 [2021-03-25 12:19:15,720 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:15,720 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:19:15,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 434 [2021-03-25 12:19:15,721 INFO L480 AbstractCegarLoop]: Abstraction has has 539 places, 603 transitions, 18099 flow [2021-03-25 12:19:15,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:15,721 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:15,721 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:15,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2021-03-25 12:19:15,721 INFO L428 AbstractCegarLoop]: === Iteration 381 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:15,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:15,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1828197259, now seen corresponding path program 2 times [2021-03-25 12:19:15,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:15,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536638990] [2021-03-25 12:19:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:15,727 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:15,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:15,732 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:15,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:15,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:15,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:15,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:15,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:15,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:15,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:15,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:15,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:15,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:15,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:15,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:15,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:15,789 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:15,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:15,803 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:15,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:15,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536638990] [2021-03-25 12:19:15,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:15,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:15,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985774052] [2021-03-25 12:19:15,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:15,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:15,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:15,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:15,806 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 126 [2021-03-25 12:19:15,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 603 transitions, 18099 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:15,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:15,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 126 [2021-03-25 12:19:15,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:16,652 INFO L129 PetriNetUnfolder]: 441/1189 cut-off events. [2021-03-25 12:19:16,652 INFO L130 PetriNetUnfolder]: For 173012/173099 co-relation queries the response was YES. [2021-03-25 12:19:16,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21836 conditions, 1189 events. 441/1189 cut-off events. For 173012/173099 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 9408 event pairs, 46 based on Foata normal form. 60/1249 useless extension candidates. Maximal degree in co-relation 21581. Up to 883 conditions per place. [2021-03-25 12:19:16,676 INFO L132 encePairwiseOnDemand]: 112/126 looper letters, 525 selfloop transitions, 79 changer transitions 14/626 dead transitions. [2021-03-25 12:19:16,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 626 transitions, 21027 flow [2021-03-25 12:19:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:19:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:19:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 352 transitions. [2021-03-25 12:19:16,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25396825396825395 [2021-03-25 12:19:16,678 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 352 transitions. [2021-03-25 12:19:16,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 352 transitions. [2021-03-25 12:19:16,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:16,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 352 transitions. [2021-03-25 12:19:16,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.0) internal successors, (352), 11 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:16,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 126.0) internal successors, (1512), 12 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:16,679 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 126.0) internal successors, (1512), 12 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:16,679 INFO L185 Difference]: Start difference. First operand has 539 places, 603 transitions, 18099 flow. Second operand 11 states and 352 transitions. [2021-03-25 12:19:16,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 626 transitions, 21027 flow [2021-03-25 12:19:17,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 626 transitions, 19332 flow, removed 747 selfloop flow, removed 6 redundant places. [2021-03-25 12:19:17,855 INFO L241 Difference]: Finished difference. Result has 547 places, 609 transitions, 17435 flow [2021-03-25 12:19:17,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=16732, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17435, PETRI_PLACES=547, PETRI_TRANSITIONS=609} [2021-03-25 12:19:17,856 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 500 predicate places. [2021-03-25 12:19:17,856 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:17,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 547 places, 609 transitions, 17435 flow [2021-03-25 12:19:17,856 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 547 places, 609 transitions, 17435 flow [2021-03-25 12:19:17,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 545 places, 609 transitions, 17435 flow [2021-03-25 12:19:18,129 INFO L129 PetriNetUnfolder]: 415/1167 cut-off events. [2021-03-25 12:19:18,130 INFO L130 PetriNetUnfolder]: For 152790/152831 co-relation queries the response was YES. [2021-03-25 12:19:18,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19288 conditions, 1167 events. 415/1167 cut-off events. For 152790/152831 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 9582 event pairs, 37 based on Foata normal form. 7/1170 useless extension candidates. Maximal degree in co-relation 19021. Up to 363 conditions per place. [2021-03-25 12:19:18,169 INFO L142 LiptonReduction]: Number of co-enabled transitions 918 [2021-03-25 12:19:18,295 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 12:19:18,295 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:19:18,296 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 440 [2021-03-25 12:19:18,296 INFO L480 AbstractCegarLoop]: Abstraction has has 545 places, 609 transitions, 17529 flow [2021-03-25 12:19:18,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:18,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:18,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:18,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2021-03-25 12:19:18,296 INFO L428 AbstractCegarLoop]: === Iteration 382 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:18,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:18,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1734896194, now seen corresponding path program 1 times [2021-03-25 12:19:18,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:18,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531772241] [2021-03-25 12:19:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:18,302 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:18,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:18,307 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:18,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:18,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:18,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:18,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:18,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:18,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:18,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:18,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:18,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:18,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:18,360 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:18,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:18,366 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:18,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:18,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531772241] [2021-03-25 12:19:18,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:18,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:19:18,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581942903] [2021-03-25 12:19:18,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:19:18,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:18,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:19:18,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:19:18,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 127 [2021-03-25 12:19:18,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 609 transitions, 17529 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:18,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:18,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 127 [2021-03-25 12:19:18,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:19,101 INFO L129 PetriNetUnfolder]: 430/1160 cut-off events. [2021-03-25 12:19:19,101 INFO L130 PetriNetUnfolder]: For 159523/159603 co-relation queries the response was YES. [2021-03-25 12:19:19,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20574 conditions, 1160 events. 430/1160 cut-off events. For 159523/159603 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 9144 event pairs, 49 based on Foata normal form. 33/1191 useless extension candidates. Maximal degree in co-relation 20315. Up to 877 conditions per place. [2021-03-25 12:19:19,125 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 498 selfloop transitions, 103 changer transitions 9/618 dead transitions. [2021-03-25 12:19:19,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 618 transitions, 19095 flow [2021-03-25 12:19:19,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:19:19,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:19:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-25 12:19:19,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25984251968503935 [2021-03-25 12:19:19,126 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-25 12:19:19,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-25 12:19:19,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:19,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-25 12:19:19,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:19,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:19,127 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:19,127 INFO L185 Difference]: Start difference. First operand has 545 places, 609 transitions, 17529 flow. Second operand 8 states and 264 transitions. [2021-03-25 12:19:19,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 618 transitions, 19095 flow [2021-03-25 12:19:20,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 618 transitions, 18540 flow, removed 238 selfloop flow, removed 4 redundant places. [2021-03-25 12:19:20,122 INFO L241 Difference]: Finished difference. Result has 552 places, 607 transitions, 17319 flow [2021-03-25 12:19:20,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=16978, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17319, PETRI_PLACES=552, PETRI_TRANSITIONS=607} [2021-03-25 12:19:20,123 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 505 predicate places. [2021-03-25 12:19:20,123 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:20,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 552 places, 607 transitions, 17319 flow [2021-03-25 12:19:20,123 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 552 places, 607 transitions, 17319 flow [2021-03-25 12:19:20,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 551 places, 607 transitions, 17319 flow [2021-03-25 12:19:20,390 INFO L129 PetriNetUnfolder]: 413/1148 cut-off events. [2021-03-25 12:19:20,390 INFO L130 PetriNetUnfolder]: For 152300/152355 co-relation queries the response was YES. [2021-03-25 12:19:20,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19302 conditions, 1148 events. 413/1148 cut-off events. For 152300/152355 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 9364 event pairs, 30 based on Foata normal form. 5/1147 useless extension candidates. Maximal degree in co-relation 19030. Up to 360 conditions per place. [2021-03-25 12:19:20,471 INFO L142 LiptonReduction]: Number of co-enabled transitions 912 [2021-03-25 12:19:20,508 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:20,508 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:20,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 385 [2021-03-25 12:19:20,508 INFO L480 AbstractCegarLoop]: Abstraction has has 551 places, 607 transitions, 17319 flow [2021-03-25 12:19:20,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:20,508 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:20,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:20,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2021-03-25 12:19:20,509 INFO L428 AbstractCegarLoop]: === Iteration 383 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:20,509 INFO L82 PathProgramCache]: Analyzing trace with hash -45199224, now seen corresponding path program 1 times [2021-03-25 12:19:20,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:20,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730259299] [2021-03-25 12:19:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:20,521 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:20,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:20,527 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:20,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:20,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:20,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:20,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:20,547 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:19:20,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:19:20,572 INFO L142 QuantifierPusher]: treesize reduction 22, result has 57.7 percent of original size [2021-03-25 12:19:20,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 12:19:20,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:20,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:19:20,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:20,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:20,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:19:20,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:19:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:20,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730259299] [2021-03-25 12:19:20,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:20,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:19:20,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061097151] [2021-03-25 12:19:20,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:19:20,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:20,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:19:20,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:19:20,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 127 [2021-03-25 12:19:20,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 607 transitions, 17319 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:20,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:20,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 127 [2021-03-25 12:19:20,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:21,301 INFO L129 PetriNetUnfolder]: 433/1171 cut-off events. [2021-03-25 12:19:21,301 INFO L130 PetriNetUnfolder]: For 165276/165356 co-relation queries the response was YES. [2021-03-25 12:19:21,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21031 conditions, 1171 events. 433/1171 cut-off events. For 165276/165356 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 9260 event pairs, 27 based on Foata normal form. 64/1235 useless extension candidates. Maximal degree in co-relation 20767. Up to 863 conditions per place. [2021-03-25 12:19:21,325 INFO L132 encePairwiseOnDemand]: 111/127 looper letters, 514 selfloop transitions, 95 changer transitions 2/619 dead transitions. [2021-03-25 12:19:21,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 619 transitions, 19437 flow [2021-03-25 12:19:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:19:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:19:21,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 272 transitions. [2021-03-25 12:19:21,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2677165354330709 [2021-03-25 12:19:21,326 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 272 transitions. [2021-03-25 12:19:21,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 272 transitions. [2021-03-25 12:19:21,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:21,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 272 transitions. [2021-03-25 12:19:21,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.0) internal successors, (272), 8 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:21,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:21,327 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:21,327 INFO L185 Difference]: Start difference. First operand has 551 places, 607 transitions, 17319 flow. Second operand 8 states and 272 transitions. [2021-03-25 12:19:21,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 619 transitions, 19437 flow [2021-03-25 12:19:22,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 619 transitions, 19201 flow, removed 14 selfloop flow, removed 10 redundant places. [2021-03-25 12:19:22,284 INFO L241 Difference]: Finished difference. Result has 550 places, 611 transitions, 17762 flow [2021-03-25 12:19:22,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=17097, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=17762, PETRI_PLACES=550, PETRI_TRANSITIONS=611} [2021-03-25 12:19:22,284 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 503 predicate places. [2021-03-25 12:19:22,284 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:22,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 550 places, 611 transitions, 17762 flow [2021-03-25 12:19:22,285 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 550 places, 611 transitions, 17762 flow [2021-03-25 12:19:22,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 549 places, 611 transitions, 17762 flow [2021-03-25 12:19:22,550 INFO L129 PetriNetUnfolder]: 418/1169 cut-off events. [2021-03-25 12:19:22,550 INFO L130 PetriNetUnfolder]: For 159229/159248 co-relation queries the response was YES. [2021-03-25 12:19:22,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19802 conditions, 1169 events. 418/1169 cut-off events. For 159229/159248 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 9660 event pairs, 34 based on Foata normal form. 4/1170 useless extension candidates. Maximal degree in co-relation 19532. Up to 369 conditions per place. [2021-03-25 12:19:22,584 INFO L142 LiptonReduction]: Number of co-enabled transitions 912 [2021-03-25 12:19:22,624 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:22,624 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:22,624 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 340 [2021-03-25 12:19:22,626 INFO L480 AbstractCegarLoop]: Abstraction has has 549 places, 611 transitions, 17762 flow [2021-03-25 12:19:22,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:22,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:22,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:22,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2021-03-25 12:19:22,626 INFO L428 AbstractCegarLoop]: === Iteration 384 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1079100603, now seen corresponding path program 3 times [2021-03-25 12:19:22,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:22,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297547108] [2021-03-25 12:19:22,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:22,645 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:22,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:22,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:22,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:22,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:22,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:22,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:22,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:22,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:22,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:22,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:22,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:22,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:22,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:22,693 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:22,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:22,705 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:22,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:22,719 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:22,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:22,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297547108] [2021-03-25 12:19:22,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:22,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:22,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399411958] [2021-03-25 12:19:22,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:22,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:22,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:22,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:22,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 127 [2021-03-25 12:19:22,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 611 transitions, 17762 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:22,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:22,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 127 [2021-03-25 12:19:22,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:23,499 INFO L129 PetriNetUnfolder]: 435/1174 cut-off events. [2021-03-25 12:19:23,499 INFO L130 PetriNetUnfolder]: For 169104/169184 co-relation queries the response was YES. [2021-03-25 12:19:23,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21373 conditions, 1174 events. 435/1174 cut-off events. For 169104/169184 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 9309 event pairs, 31 based on Foata normal form. 53/1227 useless extension candidates. Maximal degree in co-relation 21111. Up to 884 conditions per place. [2021-03-25 12:19:23,520 INFO L132 encePairwiseOnDemand]: 111/127 looper letters, 542 selfloop transitions, 75 changer transitions 3/628 dead transitions. [2021-03-25 12:19:23,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 628 transitions, 20115 flow [2021-03-25 12:19:23,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 324 transitions. [2021-03-25 12:19:23,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2551181102362205 [2021-03-25 12:19:23,522 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 324 transitions. [2021-03-25 12:19:23,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 324 transitions. [2021-03-25 12:19:23,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:23,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 324 transitions. [2021-03-25 12:19:23,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.4) internal successors, (324), 10 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:23,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:23,523 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:23,523 INFO L185 Difference]: Start difference. First operand has 549 places, 611 transitions, 17762 flow. Second operand 10 states and 324 transitions. [2021-03-25 12:19:23,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 628 transitions, 20115 flow [2021-03-25 12:19:24,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 628 transitions, 19780 flow, removed 122 selfloop flow, removed 5 redundant places. [2021-03-25 12:19:24,544 INFO L241 Difference]: Finished difference. Result has 557 places, 618 transitions, 18098 flow [2021-03-25 12:19:24,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=17465, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18098, PETRI_PLACES=557, PETRI_TRANSITIONS=618} [2021-03-25 12:19:24,544 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 510 predicate places. [2021-03-25 12:19:24,544 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:24,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 557 places, 618 transitions, 18098 flow [2021-03-25 12:19:24,545 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 557 places, 618 transitions, 18098 flow [2021-03-25 12:19:24,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 556 places, 618 transitions, 18098 flow [2021-03-25 12:19:24,829 INFO L129 PetriNetUnfolder]: 417/1166 cut-off events. [2021-03-25 12:19:24,829 INFO L130 PetriNetUnfolder]: For 168726/168758 co-relation queries the response was YES. [2021-03-25 12:19:24,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19999 conditions, 1166 events. 417/1166 cut-off events. For 168726/168758 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 9514 event pairs, 31 based on Foata normal form. 13/1179 useless extension candidates. Maximal degree in co-relation 19756. Up to 365 conditions per place. [2021-03-25 12:19:24,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 930 [2021-03-25 12:19:24,905 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:24,905 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:24,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 362 [2021-03-25 12:19:24,906 INFO L480 AbstractCegarLoop]: Abstraction has has 556 places, 618 transitions, 18098 flow [2021-03-25 12:19:24,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:24,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:24,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:24,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2021-03-25 12:19:24,906 INFO L428 AbstractCegarLoop]: === Iteration 385 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:24,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:24,906 INFO L82 PathProgramCache]: Analyzing trace with hash 636962608, now seen corresponding path program 18 times [2021-03-25 12:19:24,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:24,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123722421] [2021-03-25 12:19:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:24,920 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:24,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:24,926 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:24,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:24,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:24,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:24,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:24,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:24,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:24,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:24,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:24,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:24,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:24,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:24,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:24,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:24,996 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:24,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:25,012 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:25,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:25,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123722421] [2021-03-25 12:19:25,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:25,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:25,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587730129] [2021-03-25 12:19:25,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:25,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:25,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:25,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:25,015 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 127 [2021-03-25 12:19:25,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 618 transitions, 18098 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:25,015 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:25,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 127 [2021-03-25 12:19:25,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:25,893 INFO L129 PetriNetUnfolder]: 437/1199 cut-off events. [2021-03-25 12:19:25,893 INFO L130 PetriNetUnfolder]: For 171630/171710 co-relation queries the response was YES. [2021-03-25 12:19:25,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21637 conditions, 1199 events. 437/1199 cut-off events. For 171630/171710 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 9594 event pairs, 51 based on Foata normal form. 32/1230 useless extension candidates. Maximal degree in co-relation 21387. Up to 910 conditions per place. [2021-03-25 12:19:25,920 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 557 selfloop transitions, 68 changer transitions 9/642 dead transitions. [2021-03-25 12:19:25,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 642 transitions, 20707 flow [2021-03-25 12:19:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 12:19:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 12:19:25,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 515 transitions. [2021-03-25 12:19:25,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23853635942566004 [2021-03-25 12:19:25,922 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 515 transitions. [2021-03-25 12:19:25,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 515 transitions. [2021-03-25 12:19:25,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:25,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 515 transitions. [2021-03-25 12:19:25,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 30.294117647058822) internal successors, (515), 17 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:25,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 127.0) internal successors, (2286), 18 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:25,923 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 127.0) internal successors, (2286), 18 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:25,923 INFO L185 Difference]: Start difference. First operand has 556 places, 618 transitions, 18098 flow. Second operand 17 states and 515 transitions. [2021-03-25 12:19:25,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 642 transitions, 20707 flow [2021-03-25 12:19:26,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 642 transitions, 20484 flow, removed 80 selfloop flow, removed 5 redundant places. [2021-03-25 12:19:27,053 INFO L241 Difference]: Finished difference. Result has 574 places, 628 transitions, 18760 flow [2021-03-25 12:19:27,054 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=17877, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18760, PETRI_PLACES=574, PETRI_TRANSITIONS=628} [2021-03-25 12:19:27,054 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 527 predicate places. [2021-03-25 12:19:27,054 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:27,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 574 places, 628 transitions, 18760 flow [2021-03-25 12:19:27,054 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 574 places, 628 transitions, 18760 flow [2021-03-25 12:19:27,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 572 places, 628 transitions, 18760 flow [2021-03-25 12:19:27,342 INFO L129 PetriNetUnfolder]: 417/1179 cut-off events. [2021-03-25 12:19:27,342 INFO L130 PetriNetUnfolder]: For 170834/170866 co-relation queries the response was YES. [2021-03-25 12:19:27,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20392 conditions, 1179 events. 417/1179 cut-off events. For 170834/170866 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 9651 event pairs, 28 based on Foata normal form. 7/1185 useless extension candidates. Maximal degree in co-relation 20138. Up to 368 conditions per place. [2021-03-25 12:19:27,383 INFO L142 LiptonReduction]: Number of co-enabled transitions 938 [2021-03-25 12:19:27,529 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:27,530 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:19:27,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 476 [2021-03-25 12:19:27,530 INFO L480 AbstractCegarLoop]: Abstraction has has 572 places, 628 transitions, 18958 flow [2021-03-25 12:19:27,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:27,530 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:27,530 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:27,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2021-03-25 12:19:27,530 INFO L428 AbstractCegarLoop]: === Iteration 386 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:27,531 INFO L82 PathProgramCache]: Analyzing trace with hash -889411947, now seen corresponding path program 4 times [2021-03-25 12:19:27,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:27,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887247197] [2021-03-25 12:19:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:27,536 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:27,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:27,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:27,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:27,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:27,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:27,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:27,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:27,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:27,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:27,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:27,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:27,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:27,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:27,594 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:27,601 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:27,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:27,615 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:27,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:27,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887247197] [2021-03-25 12:19:27,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:27,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:27,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287968260] [2021-03-25 12:19:27,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:27,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:27,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:27,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:27,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:27,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 628 transitions, 18958 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:27,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:27,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:27,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:28,487 INFO L129 PetriNetUnfolder]: 439/1204 cut-off events. [2021-03-25 12:19:28,487 INFO L130 PetriNetUnfolder]: For 190332/190412 co-relation queries the response was YES. [2021-03-25 12:19:28,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 1204 events. 439/1204 cut-off events. For 190332/190412 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 9658 event pairs, 37 based on Foata normal form. 54/1258 useless extension candidates. Maximal degree in co-relation 22217. Up to 830 conditions per place. [2021-03-25 12:19:28,514 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 463 selfloop transitions, 171 changer transitions 2/644 dead transitions. [2021-03-25 12:19:28,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 644 transitions, 21485 flow [2021-03-25 12:19:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:28,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2021-03-25 12:19:28,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25736434108527134 [2021-03-25 12:19:28,515 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 332 transitions. [2021-03-25 12:19:28,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 332 transitions. [2021-03-25 12:19:28,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:28,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 332 transitions. [2021-03-25 12:19:28,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 33.2) internal successors, (332), 10 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:28,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:28,516 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:28,516 INFO L185 Difference]: Start difference. First operand has 572 places, 628 transitions, 18958 flow. Second operand 10 states and 332 transitions. [2021-03-25 12:19:28,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 644 transitions, 21485 flow [2021-03-25 12:19:29,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 644 transitions, 20528 flow, removed 447 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:29,692 INFO L241 Difference]: Finished difference. Result has 575 places, 638 transitions, 19417 flow [2021-03-25 12:19:29,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=18007, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19417, PETRI_PLACES=575, PETRI_TRANSITIONS=638} [2021-03-25 12:19:29,693 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 528 predicate places. [2021-03-25 12:19:29,693 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:29,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 575 places, 638 transitions, 19417 flow [2021-03-25 12:19:29,693 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 575 places, 638 transitions, 19417 flow [2021-03-25 12:19:29,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 575 places, 638 transitions, 19417 flow [2021-03-25 12:19:30,036 INFO L129 PetriNetUnfolder]: 422/1190 cut-off events. [2021-03-25 12:19:30,037 INFO L130 PetriNetUnfolder]: For 183962/184022 co-relation queries the response was YES. [2021-03-25 12:19:30,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20888 conditions, 1190 events. 422/1190 cut-off events. For 183962/184022 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9853 event pairs, 32 based on Foata normal form. 12/1197 useless extension candidates. Maximal degree in co-relation 20607. Up to 373 conditions per place. [2021-03-25 12:19:30,077 INFO L142 LiptonReduction]: Number of co-enabled transitions 968 [2021-03-25 12:19:30,119 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:30,119 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:30,119 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 426 [2021-03-25 12:19:30,120 INFO L480 AbstractCegarLoop]: Abstraction has has 575 places, 638 transitions, 19417 flow [2021-03-25 12:19:30,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:30,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:30,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:30,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2021-03-25 12:19:30,120 INFO L428 AbstractCegarLoop]: === Iteration 387 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:30,120 INFO L82 PathProgramCache]: Analyzing trace with hash -610464638, now seen corresponding path program 1 times [2021-03-25 12:19:30,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:30,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794900594] [2021-03-25 12:19:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:30,128 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:30,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:30,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:30,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:30,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:30,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:30,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:30,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:30,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:30,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:30,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:30,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:30,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:30,192 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:30,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:30,206 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:30,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:30,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794900594] [2021-03-25 12:19:30,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:30,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:30,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421213356] [2021-03-25 12:19:30,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:30,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:30,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:30,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:30,210 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:30,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 638 transitions, 19417 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:30,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:30,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:30,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:31,086 INFO L129 PetriNetUnfolder]: 438/1203 cut-off events. [2021-03-25 12:19:31,086 INFO L130 PetriNetUnfolder]: For 187784/187864 co-relation queries the response was YES. [2021-03-25 12:19:31,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22341 conditions, 1203 events. 438/1203 cut-off events. For 187784/187864 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9707 event pairs, 42 based on Foata normal form. 33/1235 useless extension candidates. Maximal degree in co-relation 22068. Up to 879 conditions per place. [2021-03-25 12:19:31,112 INFO L132 encePairwiseOnDemand]: 113/129 looper letters, 495 selfloop transitions, 131 changer transitions 9/643 dead transitions. [2021-03-25 12:19:31,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 586 places, 643 transitions, 21012 flow [2021-03-25 12:19:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:19:31,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:19:31,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 385 transitions. [2021-03-25 12:19:31,114 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2487080103359173 [2021-03-25 12:19:31,114 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 385 transitions. [2021-03-25 12:19:31,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 385 transitions. [2021-03-25 12:19:31,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:31,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 385 transitions. [2021-03-25 12:19:31,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 32.083333333333336) internal successors, (385), 12 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:31,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:31,115 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:31,115 INFO L185 Difference]: Start difference. First operand has 575 places, 638 transitions, 19417 flow. Second operand 12 states and 385 transitions. [2021-03-25 12:19:31,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 586 places, 643 transitions, 21012 flow [2021-03-25 12:19:32,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 643 transitions, 20098 flow, removed 324 selfloop flow, removed 6 redundant places. [2021-03-25 12:19:32,281 INFO L241 Difference]: Finished difference. Result has 582 places, 630 transitions, 18751 flow [2021-03-25 12:19:32,281 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=18503, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=507, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=18751, PETRI_PLACES=582, PETRI_TRANSITIONS=630} [2021-03-25 12:19:32,281 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 535 predicate places. [2021-03-25 12:19:32,281 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:32,281 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 582 places, 630 transitions, 18751 flow [2021-03-25 12:19:32,282 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 582 places, 630 transitions, 18751 flow [2021-03-25 12:19:32,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 577 places, 630 transitions, 18751 flow [2021-03-25 12:19:32,563 INFO L129 PetriNetUnfolder]: 417/1170 cut-off events. [2021-03-25 12:19:32,563 INFO L130 PetriNetUnfolder]: For 174360/174382 co-relation queries the response was YES. [2021-03-25 12:19:32,581 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20447 conditions, 1170 events. 417/1170 cut-off events. For 174360/174382 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9669 event pairs, 36 based on Foata normal form. 9/1175 useless extension candidates. Maximal degree in co-relation 20175. Up to 365 conditions per place. [2021-03-25 12:19:32,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 956 [2021-03-25 12:19:32,641 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:32,641 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:32,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 360 [2021-03-25 12:19:32,641 INFO L480 AbstractCegarLoop]: Abstraction has has 577 places, 630 transitions, 18751 flow [2021-03-25 12:19:32,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:32,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:32,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:32,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2021-03-25 12:19:32,641 INFO L428 AbstractCegarLoop]: === Iteration 388 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:32,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash -425158644, now seen corresponding path program 19 times [2021-03-25 12:19:32,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:32,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219776569] [2021-03-25 12:19:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:32,647 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:32,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:32,652 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:32,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:32,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:32,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:32,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:32,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:32,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:32,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:32,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:32,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:32,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:32,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:32,717 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:32,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:32,732 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:32,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:32,748 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:32,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:32,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219776569] [2021-03-25 12:19:32,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:32,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:19:32,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680121023] [2021-03-25 12:19:32,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:19:32,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:19:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:19:32,751 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:32,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 630 transitions, 18751 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:32,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:32,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:32,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:33,623 INFO L129 PetriNetUnfolder]: 436/1195 cut-off events. [2021-03-25 12:19:33,624 INFO L130 PetriNetUnfolder]: For 184316/184377 co-relation queries the response was YES. [2021-03-25 12:19:33,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22166 conditions, 1195 events. 436/1195 cut-off events. For 184316/184377 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 9613 event pairs, 31 based on Foata normal form. 54/1249 useless extension candidates. Maximal degree in co-relation 21892. Up to 896 conditions per place. [2021-03-25 12:19:33,644 INFO L132 encePairwiseOnDemand]: 113/129 looper letters, 533 selfloop transitions, 96 changer transitions 3/640 dead transitions. [2021-03-25 12:19:33,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 640 transitions, 20552 flow [2021-03-25 12:19:33,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:19:33,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:19:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 453 transitions. [2021-03-25 12:19:33,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23410852713178296 [2021-03-25 12:19:33,645 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 453 transitions. [2021-03-25 12:19:33,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 453 transitions. [2021-03-25 12:19:33,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:33,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 453 transitions. [2021-03-25 12:19:33,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.2) internal successors, (453), 15 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:33,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:33,647 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:33,647 INFO L185 Difference]: Start difference. First operand has 577 places, 630 transitions, 18751 flow. Second operand 15 states and 453 transitions. [2021-03-25 12:19:33,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 640 transitions, 20552 flow [2021-03-25 12:19:34,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 640 transitions, 20135 flow, removed 19 selfloop flow, removed 14 redundant places. [2021-03-25 12:19:34,611 INFO L241 Difference]: Finished difference. Result has 581 places, 633 transitions, 18766 flow [2021-03-25 12:19:34,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=18334, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18766, PETRI_PLACES=581, PETRI_TRANSITIONS=633} [2021-03-25 12:19:34,611 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 534 predicate places. [2021-03-25 12:19:34,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:34,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 633 transitions, 18766 flow [2021-03-25 12:19:34,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 633 transitions, 18766 flow [2021-03-25 12:19:34,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 579 places, 633 transitions, 18766 flow [2021-03-25 12:19:34,884 INFO L129 PetriNetUnfolder]: 418/1161 cut-off events. [2021-03-25 12:19:34,884 INFO L130 PetriNetUnfolder]: For 185898/185958 co-relation queries the response was YES. [2021-03-25 12:19:34,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20518 conditions, 1161 events. 418/1161 cut-off events. For 185898/185958 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9562 event pairs, 35 based on Foata normal form. 12/1168 useless extension candidates. Maximal degree in co-relation 20267. Up to 368 conditions per place. [2021-03-25 12:19:34,921 INFO L142 LiptonReduction]: Number of co-enabled transitions 968 [2021-03-25 12:19:34,963 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:34,963 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:34,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 352 [2021-03-25 12:19:34,963 INFO L480 AbstractCegarLoop]: Abstraction has has 579 places, 633 transitions, 18766 flow [2021-03-25 12:19:34,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:34,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:34,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:34,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2021-03-25 12:19:34,964 INFO L428 AbstractCegarLoop]: === Iteration 389 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:34,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1623844741, now seen corresponding path program 5 times [2021-03-25 12:19:34,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:34,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129248478] [2021-03-25 12:19:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:34,972 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:34,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:34,977 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:34,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:34,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:34,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:34,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:34,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:34,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:34,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:34,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:34,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:35,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:35,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:35,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:35,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:35,033 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:19:35,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:35,046 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:35,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:35,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:35,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129248478] [2021-03-25 12:19:35,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:35,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:35,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103975045] [2021-03-25 12:19:35,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:35,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:35,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:35,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:35,049 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:35,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 633 transitions, 18766 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:35,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:35,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:35,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:35,813 INFO L129 PetriNetUnfolder]: 436/1200 cut-off events. [2021-03-25 12:19:35,813 INFO L130 PetriNetUnfolder]: For 187907/187987 co-relation queries the response was YES. [2021-03-25 12:19:35,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22057 conditions, 1200 events. 436/1200 cut-off events. For 187907/187987 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9690 event pairs, 26 based on Foata normal form. 53/1253 useless extension candidates. Maximal degree in co-relation 21804. Up to 900 conditions per place. [2021-03-25 12:19:35,840 INFO L132 encePairwiseOnDemand]: 113/129 looper letters, 557 selfloop transitions, 76 changer transitions 2/643 dead transitions. [2021-03-25 12:19:35,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 643 transitions, 20617 flow [2021-03-25 12:19:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:35,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:35,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2021-03-25 12:19:35,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25193798449612403 [2021-03-25 12:19:35,842 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 325 transitions. [2021-03-25 12:19:35,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 325 transitions. [2021-03-25 12:19:35,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:35,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 325 transitions. [2021-03-25 12:19:35,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.5) internal successors, (325), 10 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:35,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:35,843 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:35,843 INFO L185 Difference]: Start difference. First operand has 579 places, 633 transitions, 18766 flow. Second operand 10 states and 325 transitions. [2021-03-25 12:19:35,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 643 transitions, 20617 flow [2021-03-25 12:19:36,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 643 transitions, 20455 flow, removed 22 selfloop flow, removed 11 redundant places. [2021-03-25 12:19:36,855 INFO L241 Difference]: Finished difference. Result has 580 places, 635 transitions, 18965 flow [2021-03-25 12:19:36,855 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=18604, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18965, PETRI_PLACES=580, PETRI_TRANSITIONS=635} [2021-03-25 12:19:36,855 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 533 predicate places. [2021-03-25 12:19:36,855 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:36,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 580 places, 635 transitions, 18965 flow [2021-03-25 12:19:36,855 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 580 places, 635 transitions, 18965 flow [2021-03-25 12:19:36,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 579 places, 635 transitions, 18965 flow [2021-03-25 12:19:37,132 INFO L129 PetriNetUnfolder]: 418/1183 cut-off events. [2021-03-25 12:19:37,132 INFO L130 PetriNetUnfolder]: For 185570/185598 co-relation queries the response was YES. [2021-03-25 12:19:37,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20794 conditions, 1183 events. 418/1183 cut-off events. For 185570/185598 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 9837 event pairs, 30 based on Foata normal form. 11/1194 useless extension candidates. Maximal degree in co-relation 20523. Up to 370 conditions per place. [2021-03-25 12:19:37,171 INFO L142 LiptonReduction]: Number of co-enabled transitions 972 [2021-03-25 12:19:37,213 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:37,214 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:37,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 359 [2021-03-25 12:19:37,214 INFO L480 AbstractCegarLoop]: Abstraction has has 579 places, 635 transitions, 18965 flow [2021-03-25 12:19:37,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:37,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:37,214 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:37,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2021-03-25 12:19:37,214 INFO L428 AbstractCegarLoop]: === Iteration 390 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:37,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:37,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1954732838, now seen corresponding path program 20 times [2021-03-25 12:19:37,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:37,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978158443] [2021-03-25 12:19:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:37,220 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:37,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:37,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:37,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:37,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:37,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:37,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:37,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:37,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:37,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:37,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:37,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:37,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:37,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:37,277 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:37,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:37,291 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:37,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:37,306 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:37,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:37,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978158443] [2021-03-25 12:19:37,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:37,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:37,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762716461] [2021-03-25 12:19:37,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:37,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:37,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:37,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:37,309 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:37,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 635 transitions, 18965 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:37,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:37,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:37,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:38,191 INFO L129 PetriNetUnfolder]: 453/1246 cut-off events. [2021-03-25 12:19:38,191 INFO L130 PetriNetUnfolder]: For 207348/207428 co-relation queries the response was YES. [2021-03-25 12:19:38,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23489 conditions, 1246 events. 453/1246 cut-off events. For 207348/207428 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 10133 event pairs, 36 based on Foata normal form. 54/1300 useless extension candidates. Maximal degree in co-relation 23216. Up to 860 conditions per place. [2021-03-25 12:19:38,217 INFO L132 encePairwiseOnDemand]: 114/129 looper letters, 514 selfloop transitions, 145 changer transitions 4/671 dead transitions. [2021-03-25 12:19:38,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 671 transitions, 22491 flow [2021-03-25 12:19:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:19:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:19:38,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 450 transitions. [2021-03-25 12:19:38,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24916943521594684 [2021-03-25 12:19:38,218 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 450 transitions. [2021-03-25 12:19:38,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 450 transitions. [2021-03-25 12:19:38,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:38,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 450 transitions. [2021-03-25 12:19:38,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 32.142857142857146) internal successors, (450), 14 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:38,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:38,219 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:38,219 INFO L185 Difference]: Start difference. First operand has 579 places, 635 transitions, 18965 flow. Second operand 14 states and 450 transitions. [2021-03-25 12:19:38,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 671 transitions, 22491 flow [2021-03-25 12:19:39,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 671 transitions, 22135 flow, removed 88 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:39,365 INFO L241 Difference]: Finished difference. Result has 589 places, 659 transitions, 20442 flow [2021-03-25 12:19:39,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=18615, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20442, PETRI_PLACES=589, PETRI_TRANSITIONS=659} [2021-03-25 12:19:39,365 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 542 predicate places. [2021-03-25 12:19:39,365 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:39,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 589 places, 659 transitions, 20442 flow [2021-03-25 12:19:39,365 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 589 places, 659 transitions, 20442 flow [2021-03-25 12:19:39,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 589 places, 659 transitions, 20442 flow [2021-03-25 12:19:39,667 INFO L129 PetriNetUnfolder]: 437/1233 cut-off events. [2021-03-25 12:19:39,667 INFO L130 PetriNetUnfolder]: For 211958/212046 co-relation queries the response was YES. [2021-03-25 12:19:39,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22373 conditions, 1233 events. 437/1233 cut-off events. For 211958/212046 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 10316 event pairs, 35 based on Foata normal form. 14/1245 useless extension candidates. Maximal degree in co-relation 22097. Up to 393 conditions per place. [2021-03-25 12:19:39,704 INFO L142 LiptonReduction]: Number of co-enabled transitions 1018 [2021-03-25 12:19:39,751 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:39,751 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:39,751 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 386 [2021-03-25 12:19:39,752 INFO L480 AbstractCegarLoop]: Abstraction has has 589 places, 659 transitions, 20442 flow [2021-03-25 12:19:39,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:39,752 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:39,752 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:39,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2021-03-25 12:19:39,752 INFO L428 AbstractCegarLoop]: === Iteration 391 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:39,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:39,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1909451943, now seen corresponding path program 6 times [2021-03-25 12:19:39,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:39,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629491100] [2021-03-25 12:19:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:39,757 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:39,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:39,766 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:39,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:39,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:39,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:39,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:39,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:39,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:39,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:19:39,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:39,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:39,805 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:39,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:39,808 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:39,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:39,820 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:39,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:39,833 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:39,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:39,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629491100] [2021-03-25 12:19:39,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:39,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:39,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846047560] [2021-03-25 12:19:39,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:39,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:39,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:39,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:39,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:39,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 659 transitions, 20442 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:39,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:39,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:39,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:40,689 INFO L129 PetriNetUnfolder]: 459/1275 cut-off events. [2021-03-25 12:19:40,690 INFO L130 PetriNetUnfolder]: For 223546/223626 co-relation queries the response was YES. [2021-03-25 12:19:40,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24485 conditions, 1275 events. 459/1275 cut-off events. For 223546/223626 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10471 event pairs, 43 based on Foata normal form. 43/1318 useless extension candidates. Maximal degree in co-relation 24208. Up to 921 conditions per place. [2021-03-25 12:19:40,718 INFO L132 encePairwiseOnDemand]: 113/129 looper letters, 523 selfloop transitions, 133 changer transitions 14/678 dead transitions. [2021-03-25 12:19:40,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 678 transitions, 23082 flow [2021-03-25 12:19:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:19:40,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:19:40,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 351 transitions. [2021-03-25 12:19:40,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24735729386892177 [2021-03-25 12:19:40,719 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 351 transitions. [2021-03-25 12:19:40,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 351 transitions. [2021-03-25 12:19:40,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:40,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 351 transitions. [2021-03-25 12:19:40,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:40,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:40,720 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:40,720 INFO L185 Difference]: Start difference. First operand has 589 places, 659 transitions, 20442 flow. Second operand 11 states and 351 transitions. [2021-03-25 12:19:40,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 678 transitions, 23082 flow [2021-03-25 12:19:41,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 678 transitions, 22415 flow, removed 330 selfloop flow, removed 2 redundant places. [2021-03-25 12:19:42,007 INFO L241 Difference]: Finished difference. Result has 601 places, 661 transitions, 20574 flow [2021-03-25 12:19:42,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=19775, PETRI_DIFFERENCE_MINUEND_PLACES=587, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20574, PETRI_PLACES=601, PETRI_TRANSITIONS=661} [2021-03-25 12:19:42,007 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 554 predicate places. [2021-03-25 12:19:42,007 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:42,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 601 places, 661 transitions, 20574 flow [2021-03-25 12:19:42,007 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 601 places, 661 transitions, 20574 flow [2021-03-25 12:19:42,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 600 places, 661 transitions, 20574 flow [2021-03-25 12:19:42,316 INFO L129 PetriNetUnfolder]: 437/1233 cut-off events. [2021-03-25 12:19:42,317 INFO L130 PetriNetUnfolder]: For 206642/206646 co-relation queries the response was YES. [2021-03-25 12:19:42,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22618 conditions, 1233 events. 437/1233 cut-off events. For 206642/206646 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10345 event pairs, 31 based on Foata normal form. 3/1236 useless extension candidates. Maximal degree in co-relation 22350. Up to 400 conditions per place. [2021-03-25 12:19:42,354 INFO L142 LiptonReduction]: Number of co-enabled transitions 1014 [2021-03-25 12:19:42,401 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:42,401 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:42,401 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 394 [2021-03-25 12:19:42,401 INFO L480 AbstractCegarLoop]: Abstraction has has 600 places, 661 transitions, 20574 flow [2021-03-25 12:19:42,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:42,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:42,401 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:42,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2021-03-25 12:19:42,401 INFO L428 AbstractCegarLoop]: === Iteration 392 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:42,402 INFO L82 PathProgramCache]: Analyzing trace with hash 584166980, now seen corresponding path program 21 times [2021-03-25 12:19:42,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:42,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113169291] [2021-03-25 12:19:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:42,407 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:42,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:42,412 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:42,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:42,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:42,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:42,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:42,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:42,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:42,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:42,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:42,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:42,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:42,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:42,465 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:42,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:42,479 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:42,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:42,494 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:42,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:42,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113169291] [2021-03-25 12:19:42,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:42,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:42,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421402442] [2021-03-25 12:19:42,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:42,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:42,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:42,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:42,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:42,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 661 transitions, 20574 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:42,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:42,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:42,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:43,334 INFO L129 PetriNetUnfolder]: 453/1247 cut-off events. [2021-03-25 12:19:43,334 INFO L130 PetriNetUnfolder]: For 214479/214566 co-relation queries the response was YES. [2021-03-25 12:19:43,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23924 conditions, 1247 events. 453/1247 cut-off events. For 214479/214566 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10213 event pairs, 46 based on Foata normal form. 39/1285 useless extension candidates. Maximal degree in co-relation 23653. Up to 983 conditions per place. [2021-03-25 12:19:43,363 INFO L132 encePairwiseOnDemand]: 114/129 looper letters, 614 selfloop transitions, 48 changer transitions 2/672 dead transitions. [2021-03-25 12:19:43,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 672 transitions, 22544 flow [2021-03-25 12:19:43,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:19:43,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:19:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 448 transitions. [2021-03-25 12:19:43,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23152454780361756 [2021-03-25 12:19:43,364 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 448 transitions. [2021-03-25 12:19:43,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 448 transitions. [2021-03-25 12:19:43,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:43,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 448 transitions. [2021-03-25 12:19:43,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.866666666666667) internal successors, (448), 15 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:43,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:43,365 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:43,365 INFO L185 Difference]: Start difference. First operand has 600 places, 661 transitions, 20574 flow. Second operand 15 states and 448 transitions. [2021-03-25 12:19:43,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 672 transitions, 22544 flow [2021-03-25 12:19:44,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 672 transitions, 22244 flow, removed 112 selfloop flow, removed 6 redundant places. [2021-03-25 12:19:44,492 INFO L241 Difference]: Finished difference. Result has 612 places, 668 transitions, 20881 flow [2021-03-25 12:19:44,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=20274, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20881, PETRI_PLACES=612, PETRI_TRANSITIONS=668} [2021-03-25 12:19:44,493 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 565 predicate places. [2021-03-25 12:19:44,493 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:44,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 612 places, 668 transitions, 20881 flow [2021-03-25 12:19:44,493 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 612 places, 668 transitions, 20881 flow [2021-03-25 12:19:44,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 611 places, 668 transitions, 20881 flow [2021-03-25 12:19:44,811 INFO L129 PetriNetUnfolder]: 437/1238 cut-off events. [2021-03-25 12:19:44,811 INFO L130 PetriNetUnfolder]: For 212311/212358 co-relation queries the response was YES. [2021-03-25 12:19:44,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22521 conditions, 1238 events. 437/1238 cut-off events. For 212311/212358 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10497 event pairs, 38 based on Foata normal form. 11/1247 useless extension candidates. Maximal degree in co-relation 22243. Up to 390 conditions per place. [2021-03-25 12:19:44,903 INFO L142 LiptonReduction]: Number of co-enabled transitions 1014 [2021-03-25 12:19:44,949 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:44,949 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:44,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 456 [2021-03-25 12:19:44,949 INFO L480 AbstractCegarLoop]: Abstraction has has 611 places, 668 transitions, 20881 flow [2021-03-25 12:19:44,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:44,950 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:44,950 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:44,950 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2021-03-25 12:19:44,950 INFO L428 AbstractCegarLoop]: === Iteration 393 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:44,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1408940982, now seen corresponding path program 22 times [2021-03-25 12:19:44,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:44,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371264098] [2021-03-25 12:19:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:44,955 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:44,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:44,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:44,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:44,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:44,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:44,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:44,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:44,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:44,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:44,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:44,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:45,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:45,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:45,014 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:45,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:45,028 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:45,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:45,043 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:45,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:45,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371264098] [2021-03-25 12:19:45,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:45,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:45,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785024993] [2021-03-25 12:19:45,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:45,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:45,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:45,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:45,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:45,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 668 transitions, 20881 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:45,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:45,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:45,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:45,898 INFO L129 PetriNetUnfolder]: 452/1251 cut-off events. [2021-03-25 12:19:45,898 INFO L130 PetriNetUnfolder]: For 218828/218908 co-relation queries the response was YES. [2021-03-25 12:19:45,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23988 conditions, 1251 events. 452/1251 cut-off events. For 218828/218908 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 10292 event pairs, 32 based on Foata normal form. 53/1304 useless extension candidates. Maximal degree in co-relation 23705. Up to 955 conditions per place. [2021-03-25 12:19:45,927 INFO L132 encePairwiseOnDemand]: 114/129 looper letters, 596 selfloop transitions, 68 changer transitions 3/675 dead transitions. [2021-03-25 12:19:45,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 675 transitions, 22614 flow [2021-03-25 12:19:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:19:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:19:45,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 374 transitions. [2021-03-25 12:19:45,929 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24160206718346253 [2021-03-25 12:19:45,929 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 374 transitions. [2021-03-25 12:19:45,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 374 transitions. [2021-03-25 12:19:45,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:45,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 374 transitions. [2021-03-25 12:19:45,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.166666666666668) internal successors, (374), 12 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:45,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:45,930 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 129.0) internal successors, (1677), 13 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:45,930 INFO L185 Difference]: Start difference. First operand has 611 places, 668 transitions, 20881 flow. Second operand 12 states and 374 transitions. [2021-03-25 12:19:45,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 675 transitions, 22614 flow [2021-03-25 12:19:47,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 675 transitions, 22078 flow, removed 249 selfloop flow, removed 8 redundant places. [2021-03-25 12:19:47,320 INFO L241 Difference]: Finished difference. Result has 617 places, 668 transitions, 20570 flow [2021-03-25 12:19:47,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=20345, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=668, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20570, PETRI_PLACES=617, PETRI_TRANSITIONS=668} [2021-03-25 12:19:47,321 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 570 predicate places. [2021-03-25 12:19:47,321 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:47,321 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 617 places, 668 transitions, 20570 flow [2021-03-25 12:19:47,321 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 617 places, 668 transitions, 20570 flow [2021-03-25 12:19:47,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 615 places, 668 transitions, 20570 flow [2021-03-25 12:19:47,720 INFO L129 PetriNetUnfolder]: 436/1236 cut-off events. [2021-03-25 12:19:47,720 INFO L130 PetriNetUnfolder]: For 209850/209883 co-relation queries the response was YES. [2021-03-25 12:19:47,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22532 conditions, 1236 events. 436/1236 cut-off events. For 209850/209883 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10496 event pairs, 37 based on Foata normal form. 3/1235 useless extension candidates. Maximal degree in co-relation 22267. Up to 392 conditions per place. [2021-03-25 12:19:47,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 1018 [2021-03-25 12:19:47,807 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:47,807 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:47,807 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 486 [2021-03-25 12:19:47,808 INFO L480 AbstractCegarLoop]: Abstraction has has 615 places, 668 transitions, 20570 flow [2021-03-25 12:19:47,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:47,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:47,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:47,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2021-03-25 12:19:47,808 INFO L428 AbstractCegarLoop]: === Iteration 394 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:47,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1317312098, now seen corresponding path program 23 times [2021-03-25 12:19:47,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:47,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229205080] [2021-03-25 12:19:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:47,813 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:47,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:47,818 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:47,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:47,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:47,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:47,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:47,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:47,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:47,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:47,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:47,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:47,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:47,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:47,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:47,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:47,899 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:47,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:47,915 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:47,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229205080] [2021-03-25 12:19:47,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:47,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:19:47,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055684047] [2021-03-25 12:19:47,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:19:47,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:47,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:19:47,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:19:47,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:47,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 668 transitions, 20570 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:47,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:47,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:47,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:48,898 INFO L129 PetriNetUnfolder]: 450/1245 cut-off events. [2021-03-25 12:19:48,898 INFO L130 PetriNetUnfolder]: For 217474/217554 co-relation queries the response was YES. [2021-03-25 12:19:48,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23764 conditions, 1245 events. 450/1245 cut-off events. For 217474/217554 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 10231 event pairs, 44 based on Foata normal form. 43/1287 useless extension candidates. Maximal degree in co-relation 23497. Up to 979 conditions per place. [2021-03-25 12:19:48,922 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 619 selfloop transitions, 38 changer transitions 8/673 dead transitions. [2021-03-25 12:19:48,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 629 places, 673 transitions, 22087 flow [2021-03-25 12:19:48,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:19:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:19:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 442 transitions. [2021-03-25 12:19:48,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2284237726098191 [2021-03-25 12:19:48,924 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 442 transitions. [2021-03-25 12:19:48,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 442 transitions. [2021-03-25 12:19:48,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:48,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 442 transitions. [2021-03-25 12:19:48,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.466666666666665) internal successors, (442), 15 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:48,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:48,925 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 129.0) internal successors, (2064), 16 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:48,925 INFO L185 Difference]: Start difference. First operand has 615 places, 668 transitions, 20570 flow. Second operand 15 states and 442 transitions. [2021-03-25 12:19:48,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 629 places, 673 transitions, 22087 flow [2021-03-25 12:19:50,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 673 transitions, 21960 flow, removed 23 selfloop flow, removed 9 redundant places. [2021-03-25 12:19:50,215 INFO L241 Difference]: Finished difference. Result has 622 places, 662 transitions, 20424 flow [2021-03-25 12:19:50,215 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=20443, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=668, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=630, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20424, PETRI_PLACES=622, PETRI_TRANSITIONS=662} [2021-03-25 12:19:50,215 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 575 predicate places. [2021-03-25 12:19:50,216 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:50,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 622 places, 662 transitions, 20424 flow [2021-03-25 12:19:50,216 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 622 places, 662 transitions, 20424 flow [2021-03-25 12:19:50,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 616 places, 662 transitions, 20424 flow [2021-03-25 12:19:50,540 INFO L129 PetriNetUnfolder]: 435/1236 cut-off events. [2021-03-25 12:19:50,540 INFO L130 PetriNetUnfolder]: For 213222/213343 co-relation queries the response was YES. [2021-03-25 12:19:50,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22384 conditions, 1236 events. 435/1236 cut-off events. For 213222/213343 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10398 event pairs, 35 based on Foata normal form. 18/1253 useless extension candidates. Maximal degree in co-relation 22119. Up to 391 conditions per place. [2021-03-25 12:19:50,583 INFO L142 LiptonReduction]: Number of co-enabled transitions 992 [2021-03-25 12:19:50,631 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:50,632 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:50,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 416 [2021-03-25 12:19:50,632 INFO L480 AbstractCegarLoop]: Abstraction has has 616 places, 662 transitions, 20424 flow [2021-03-25 12:19:50,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:50,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:50,632 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:50,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2021-03-25 12:19:50,632 INFO L428 AbstractCegarLoop]: === Iteration 395 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:50,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:50,632 INFO L82 PathProgramCache]: Analyzing trace with hash 573852771, now seen corresponding path program 7 times [2021-03-25 12:19:50,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:50,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825016789] [2021-03-25 12:19:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:50,638 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:50,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:50,643 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:50,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:50,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:50,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:50,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:50,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:50,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:50,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:50,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:50,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:50,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:50,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:50,706 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:50,712 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:50,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:50,727 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:50,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:50,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825016789] [2021-03-25 12:19:50,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:50,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:19:50,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582443758] [2021-03-25 12:19:50,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:19:50,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:50,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:19:50,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:19:50,730 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:50,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 662 transitions, 20424 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:50,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:50,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:50,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:51,600 INFO L129 PetriNetUnfolder]: 451/1256 cut-off events. [2021-03-25 12:19:51,601 INFO L130 PetriNetUnfolder]: For 226195/226256 co-relation queries the response was YES. [2021-03-25 12:19:51,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24122 conditions, 1256 events. 451/1256 cut-off events. For 226195/226256 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10363 event pairs, 34 based on Foata normal form. 54/1310 useless extension candidates. Maximal degree in co-relation 23855. Up to 933 conditions per place. [2021-03-25 12:19:51,629 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 574 selfloop transitions, 94 changer transitions 2/678 dead transitions. [2021-03-25 12:19:51,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 678 transitions, 22650 flow [2021-03-25 12:19:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:19:51,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:19:51,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 324 transitions. [2021-03-25 12:19:51,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25116279069767444 [2021-03-25 12:19:51,630 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 324 transitions. [2021-03-25 12:19:51,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 324 transitions. [2021-03-25 12:19:51,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:51,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 324 transitions. [2021-03-25 12:19:51,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.4) internal successors, (324), 10 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:51,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:51,631 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:51,631 INFO L185 Difference]: Start difference. First operand has 616 places, 662 transitions, 20424 flow. Second operand 10 states and 324 transitions. [2021-03-25 12:19:51,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 678 transitions, 22650 flow [2021-03-25 12:19:52,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 678 transitions, 22399 flow, removed 75 selfloop flow, removed 14 redundant places. [2021-03-25 12:19:52,978 INFO L241 Difference]: Finished difference. Result has 614 places, 669 transitions, 20865 flow [2021-03-25 12:19:52,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=20191, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20865, PETRI_PLACES=614, PETRI_TRANSITIONS=669} [2021-03-25 12:19:52,979 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 567 predicate places. [2021-03-25 12:19:52,979 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:52,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 614 places, 669 transitions, 20865 flow [2021-03-25 12:19:52,979 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 614 places, 669 transitions, 20865 flow [2021-03-25 12:19:52,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 613 places, 669 transitions, 20865 flow [2021-03-25 12:19:53,331 INFO L129 PetriNetUnfolder]: 436/1234 cut-off events. [2021-03-25 12:19:53,331 INFO L130 PetriNetUnfolder]: For 220027/220097 co-relation queries the response was YES. [2021-03-25 12:19:53,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22730 conditions, 1234 events. 436/1234 cut-off events. For 220027/220097 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10412 event pairs, 33 based on Foata normal form. 11/1243 useless extension candidates. Maximal degree in co-relation 22466. Up to 392 conditions per place. [2021-03-25 12:19:53,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:19:53,418 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:53,418 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:53,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 439 [2021-03-25 12:19:53,418 INFO L480 AbstractCegarLoop]: Abstraction has has 613 places, 669 transitions, 20865 flow [2021-03-25 12:19:53,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:53,418 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:53,418 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:53,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2021-03-25 12:19:53,418 INFO L428 AbstractCegarLoop]: === Iteration 396 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:53,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1807516434, now seen corresponding path program 24 times [2021-03-25 12:19:53,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:53,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813992375] [2021-03-25 12:19:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:53,424 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:53,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:53,429 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:53,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:53,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:53,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:53,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:53,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:53,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:53,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:53,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:53,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:53,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:53,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:53,493 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:53,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:53,508 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:53,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:53,524 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:53,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:53,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:53,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813992375] [2021-03-25 12:19:53,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:53,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:19:53,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897775245] [2021-03-25 12:19:53,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:19:53,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:53,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:19:53,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:19:53,527 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:53,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 669 transitions, 20865 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:53,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:53,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:53,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:54,479 INFO L129 PetriNetUnfolder]: 450/1257 cut-off events. [2021-03-25 12:19:54,479 INFO L130 PetriNetUnfolder]: For 228309/228389 co-relation queries the response was YES. [2021-03-25 12:19:54,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24217 conditions, 1257 events. 450/1257 cut-off events. For 228309/228389 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10412 event pairs, 31 based on Foata normal form. 64/1321 useless extension candidates. Maximal degree in co-relation 23951. Up to 922 conditions per place. [2021-03-25 12:19:54,509 INFO L132 encePairwiseOnDemand]: 113/129 looper letters, 559 selfloop transitions, 108 changer transitions 3/678 dead transitions. [2021-03-25 12:19:54,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 678 transitions, 22978 flow [2021-03-25 12:19:54,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:19:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:19:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 405 transitions. [2021-03-25 12:19:54,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24150268336314848 [2021-03-25 12:19:54,511 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 405 transitions. [2021-03-25 12:19:54,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 405 transitions. [2021-03-25 12:19:54,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:54,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 405 transitions. [2021-03-25 12:19:54,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.153846153846153) internal successors, (405), 13 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:54,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:54,512 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 129.0) internal successors, (1806), 14 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:54,512 INFO L185 Difference]: Start difference. First operand has 613 places, 669 transitions, 20865 flow. Second operand 13 states and 405 transitions. [2021-03-25 12:19:54,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 678 transitions, 22978 flow [2021-03-25 12:19:55,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 678 transitions, 22690 flow, removed 91 selfloop flow, removed 7 redundant places. [2021-03-25 12:19:55,865 INFO L241 Difference]: Finished difference. Result has 621 places, 669 transitions, 20936 flow [2021-03-25 12:19:55,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=20585, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20936, PETRI_PLACES=621, PETRI_TRANSITIONS=669} [2021-03-25 12:19:55,865 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:19:55,865 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:55,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 669 transitions, 20936 flow [2021-03-25 12:19:55,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 669 transitions, 20936 flow [2021-03-25 12:19:55,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 619 places, 669 transitions, 20936 flow [2021-03-25 12:19:56,200 INFO L129 PetriNetUnfolder]: 436/1243 cut-off events. [2021-03-25 12:19:56,200 INFO L130 PetriNetUnfolder]: For 218550/218608 co-relation queries the response was YES. [2021-03-25 12:19:56,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22774 conditions, 1243 events. 436/1243 cut-off events. For 218550/218608 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10539 event pairs, 38 based on Foata normal form. 18/1257 useless extension candidates. Maximal degree in co-relation 22508. Up to 394 conditions per place. [2021-03-25 12:19:56,244 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:19:56,294 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:56,294 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:19:56,294 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 429 [2021-03-25 12:19:56,294 INFO L480 AbstractCegarLoop]: Abstraction has has 619 places, 669 transitions, 20936 flow [2021-03-25 12:19:56,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:56,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:56,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:56,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2021-03-25 12:19:56,294 INFO L428 AbstractCegarLoop]: === Iteration 397 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash -275896842, now seen corresponding path program 25 times [2021-03-25 12:19:56,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:56,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780606781] [2021-03-25 12:19:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:56,300 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:56,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:56,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:56,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:56,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:56,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:56,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:56,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:56,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:56,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:56,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:56,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:56,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:56,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:56,360 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:19:56,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:19:56,374 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:56,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:56,389 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:56,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:56,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780606781] [2021-03-25 12:19:56,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:56,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:19:56,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15617583] [2021-03-25 12:19:56,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:19:56,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:56,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:19:56,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:19:56,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 129 [2021-03-25 12:19:56,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 669 transitions, 20936 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:56,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:56,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 129 [2021-03-25 12:19:56,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:19:57,244 INFO L129 PetriNetUnfolder]: 448/1261 cut-off events. [2021-03-25 12:19:57,245 INFO L130 PetriNetUnfolder]: For 224208/224288 co-relation queries the response was YES. [2021-03-25 12:19:57,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24168 conditions, 1261 events. 448/1261 cut-off events. For 224208/224288 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10487 event pairs, 44 based on Foata normal form. 32/1292 useless extension candidates. Maximal degree in co-relation 23895. Up to 991 conditions per place. [2021-03-25 12:19:57,272 INFO L132 encePairwiseOnDemand]: 115/129 looper letters, 627 selfloop transitions, 33 changer transitions 5/673 dead transitions. [2021-03-25 12:19:57,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 673 transitions, 22364 flow [2021-03-25 12:19:57,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:19:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:19:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 416 transitions. [2021-03-25 12:19:57,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23034330011074197 [2021-03-25 12:19:57,274 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 416 transitions. [2021-03-25 12:19:57,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 416 transitions. [2021-03-25 12:19:57,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:19:57,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 416 transitions. [2021-03-25 12:19:57,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.714285714285715) internal successors, (416), 14 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:57,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:57,275 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 129.0) internal successors, (1935), 15 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:57,275 INFO L185 Difference]: Start difference. First operand has 619 places, 669 transitions, 20936 flow. Second operand 14 states and 416 transitions. [2021-03-25 12:19:57,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 673 transitions, 22364 flow [2021-03-25 12:19:58,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 673 transitions, 22139 flow, removed 23 selfloop flow, removed 10 redundant places. [2021-03-25 12:19:58,621 INFO L241 Difference]: Finished difference. Result has 624 places, 665 transitions, 20680 flow [2021-03-25 12:19:58,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=20714, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20680, PETRI_PLACES=624, PETRI_TRANSITIONS=665} [2021-03-25 12:19:58,621 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 577 predicate places. [2021-03-25 12:19:58,621 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:19:58,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 624 places, 665 transitions, 20680 flow [2021-03-25 12:19:58,622 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 624 places, 665 transitions, 20680 flow [2021-03-25 12:19:58,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 622 places, 665 transitions, 20680 flow [2021-03-25 12:19:58,985 INFO L129 PetriNetUnfolder]: 433/1254 cut-off events. [2021-03-25 12:19:58,985 INFO L130 PetriNetUnfolder]: For 213546/213579 co-relation queries the response was YES. [2021-03-25 12:19:59,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22812 conditions, 1254 events. 433/1254 cut-off events. For 213546/213579 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10741 event pairs, 38 based on Foata normal form. 3/1253 useless extension candidates. Maximal degree in co-relation 22543. Up to 397 conditions per place. [2021-03-25 12:19:59,031 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:19:59,171 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:19:59,172 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:19:59,172 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 551 [2021-03-25 12:19:59,172 INFO L480 AbstractCegarLoop]: Abstraction has has 622 places, 665 transitions, 20694 flow [2021-03-25 12:19:59,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:59,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:19:59,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:19:59,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2021-03-25 12:19:59,172 INFO L428 AbstractCegarLoop]: === Iteration 398 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:19:59,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:19:59,172 INFO L82 PathProgramCache]: Analyzing trace with hash -238975166, now seen corresponding path program 26 times [2021-03-25 12:19:59,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:19:59,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652259457] [2021-03-25 12:19:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:19:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:19:59,188 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:19:59,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:19:59,193 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:19:59,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:19:59,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:59,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:59,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:59,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:59,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:59,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:59,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:59,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:59,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:59,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:19:59,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:19:59,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:59,276 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:19:59,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:19:59,292 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:19:59,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:19:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:19:59,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652259457] [2021-03-25 12:19:59,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:19:59,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:19:59,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47577507] [2021-03-25 12:19:59,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:19:59,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:19:59,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:19:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:19:59,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:19:59,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 665 transitions, 20694 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:19:59,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:19:59,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:19:59,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:00,209 INFO L129 PetriNetUnfolder]: 446/1256 cut-off events. [2021-03-25 12:20:00,209 INFO L130 PetriNetUnfolder]: For 223964/224051 co-relation queries the response was YES. [2021-03-25 12:20:00,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23941 conditions, 1256 events. 446/1256 cut-off events. For 223964/224051 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10441 event pairs, 44 based on Foata normal form. 61/1316 useless extension candidates. Maximal degree in co-relation 23669. Up to 981 conditions per place. [2021-03-25 12:20:00,238 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 612 selfloop transitions, 41 changer transitions 6/667 dead transitions. [2021-03-25 12:20:00,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 667 transitions, 22033 flow [2021-03-25 12:20:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:20:00,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:20:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 443 transitions. [2021-03-25 12:20:00,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2271794871794872 [2021-03-25 12:20:00,240 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 443 transitions. [2021-03-25 12:20:00,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 443 transitions. [2021-03-25 12:20:00,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:00,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 443 transitions. [2021-03-25 12:20:00,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.533333333333335) internal successors, (443), 15 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:00,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 130.0) internal successors, (2080), 16 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:00,241 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 130.0) internal successors, (2080), 16 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:00,241 INFO L185 Difference]: Start difference. First operand has 622 places, 665 transitions, 20694 flow. Second operand 15 states and 443 transitions. [2021-03-25 12:20:00,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 667 transitions, 22033 flow [2021-03-25 12:20:01,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 667 transitions, 21906 flow, removed 9 selfloop flow, removed 16 redundant places. [2021-03-25 12:20:01,735 INFO L241 Difference]: Finished difference. Result has 621 places, 659 transitions, 20497 flow [2021-03-25 12:20:01,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=20567, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20497, PETRI_PLACES=621, PETRI_TRANSITIONS=659} [2021-03-25 12:20:01,735 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:20:01,735 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:01,735 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 659 transitions, 20497 flow [2021-03-25 12:20:01,735 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 659 transitions, 20497 flow [2021-03-25 12:20:01,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 615 places, 659 transitions, 20497 flow [2021-03-25 12:20:02,080 INFO L129 PetriNetUnfolder]: 432/1251 cut-off events. [2021-03-25 12:20:02,080 INFO L130 PetriNetUnfolder]: For 211047/211084 co-relation queries the response was YES. [2021-03-25 12:20:02,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22687 conditions, 1251 events. 432/1251 cut-off events. For 211047/211084 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 10741 event pairs, 39 based on Foata normal form. 5/1252 useless extension candidates. Maximal degree in co-relation 22420. Up to 396 conditions per place. [2021-03-25 12:20:02,122 INFO L142 LiptonReduction]: Number of co-enabled transitions 990 [2021-03-25 12:20:02,168 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:02,168 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:02,168 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 433 [2021-03-25 12:20:02,168 INFO L480 AbstractCegarLoop]: Abstraction has has 615 places, 659 transitions, 20497 flow [2021-03-25 12:20:02,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:02,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:02,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:02,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2021-03-25 12:20:02,168 INFO L428 AbstractCegarLoop]: === Iteration 399 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash -341474332, now seen corresponding path program 1 times [2021-03-25 12:20:02,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:02,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307475292] [2021-03-25 12:20:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:02,174 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:02,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:02,179 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:02,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:02,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:02,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:02,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:02,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:02,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:02,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:02,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:02,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:02,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:02,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:02,239 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:02,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:02,266 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:02,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:02,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307475292] [2021-03-25 12:20:02,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:02,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:02,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897782958] [2021-03-25 12:20:02,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:02,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:02,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:02,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:02,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:20:02,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 659 transitions, 20497 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:02,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:02,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:20:02,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:03,389 INFO L129 PetriNetUnfolder]: 445/1248 cut-off events. [2021-03-25 12:20:03,390 INFO L130 PetriNetUnfolder]: For 222091/222231 co-relation queries the response was YES. [2021-03-25 12:20:03,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23821 conditions, 1248 events. 445/1248 cut-off events. For 222091/222231 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10392 event pairs, 44 based on Foata normal form. 44/1292 useless extension candidates. Maximal degree in co-relation 23556. Up to 925 conditions per place. [2021-03-25 12:20:03,430 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 528 selfloop transitions, 122 changer transitions 5/663 dead transitions. [2021-03-25 12:20:03,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 663 transitions, 22007 flow [2021-03-25 12:20:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:20:03,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:20:03,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 348 transitions. [2021-03-25 12:20:03,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24335664335664337 [2021-03-25 12:20:03,432 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 348 transitions. [2021-03-25 12:20:03,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 348 transitions. [2021-03-25 12:20:03,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:03,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 348 transitions. [2021-03-25 12:20:03,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.636363636363637) internal successors, (348), 11 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:03,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 130.0) internal successors, (1560), 12 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:03,433 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 130.0) internal successors, (1560), 12 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:03,433 INFO L185 Difference]: Start difference. First operand has 615 places, 659 transitions, 20497 flow. Second operand 11 states and 348 transitions. [2021-03-25 12:20:03,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 663 transitions, 22007 flow [2021-03-25 12:20:04,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 663 transitions, 21847 flow, removed 19 selfloop flow, removed 16 redundant places. [2021-03-25 12:20:04,866 INFO L241 Difference]: Finished difference. Result has 611 places, 655 transitions, 20665 flow [2021-03-25 12:20:04,866 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=20341, PETRI_DIFFERENCE_MINUEND_PLACES=599, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20665, PETRI_PLACES=611, PETRI_TRANSITIONS=655} [2021-03-25 12:20:04,866 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 564 predicate places. [2021-03-25 12:20:04,866 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:04,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 655 transitions, 20665 flow [2021-03-25 12:20:04,867 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 655 transitions, 20665 flow [2021-03-25 12:20:04,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 608 places, 655 transitions, 20665 flow [2021-03-25 12:20:05,244 INFO L129 PetriNetUnfolder]: 430/1234 cut-off events. [2021-03-25 12:20:05,245 INFO L130 PetriNetUnfolder]: For 203516/203584 co-relation queries the response was YES. [2021-03-25 12:20:05,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22535 conditions, 1234 events. 430/1234 cut-off events. For 203516/203584 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10474 event pairs, 33 based on Foata normal form. 8/1237 useless extension candidates. Maximal degree in co-relation 22259. Up to 393 conditions per place. [2021-03-25 12:20:05,295 INFO L142 LiptonReduction]: Number of co-enabled transitions 990 [2021-03-25 12:20:05,347 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:05,348 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:05,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 482 [2021-03-25 12:20:05,348 INFO L480 AbstractCegarLoop]: Abstraction has has 608 places, 655 transitions, 20665 flow [2021-03-25 12:20:05,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:05,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:05,348 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:05,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2021-03-25 12:20:05,348 INFO L428 AbstractCegarLoop]: === Iteration 400 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:05,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1411582848, now seen corresponding path program 27 times [2021-03-25 12:20:05,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:05,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713564802] [2021-03-25 12:20:05,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:05,354 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:05,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:05,359 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:05,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:05,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:05,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:05,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:05,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:05,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:05,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:05,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:05,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:05,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:05,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:05,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:05,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:05,433 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:05,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:05,449 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:05,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:05,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713564802] [2021-03-25 12:20:05,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:05,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:05,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307893649] [2021-03-25 12:20:05,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:05,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:05,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:05,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:05,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:20:05,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 608 places, 655 transitions, 20665 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:05,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:05,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:20:05,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:06,286 INFO L129 PetriNetUnfolder]: 444/1236 cut-off events. [2021-03-25 12:20:06,286 INFO L130 PetriNetUnfolder]: For 212351/212431 co-relation queries the response was YES. [2021-03-25 12:20:06,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23784 conditions, 1236 events. 444/1236 cut-off events. For 212351/212431 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10172 event pairs, 42 based on Foata normal form. 43/1278 useless extension candidates. Maximal degree in co-relation 23503. Up to 976 conditions per place. [2021-03-25 12:20:06,318 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 611 selfloop transitions, 36 changer transitions 4/659 dead transitions. [2021-03-25 12:20:06,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 659 transitions, 22072 flow [2021-03-25 12:20:06,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:20:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:20:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 361 transitions. [2021-03-25 12:20:06,320 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23141025641025642 [2021-03-25 12:20:06,320 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 361 transitions. [2021-03-25 12:20:06,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 361 transitions. [2021-03-25 12:20:06,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:06,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 361 transitions. [2021-03-25 12:20:06,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.083333333333332) internal successors, (361), 12 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:06,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:06,321 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:06,321 INFO L185 Difference]: Start difference. First operand has 608 places, 655 transitions, 20665 flow. Second operand 12 states and 361 transitions. [2021-03-25 12:20:06,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 659 transitions, 22072 flow [2021-03-25 12:20:07,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 659 transitions, 21743 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-25 12:20:07,557 INFO L241 Difference]: Finished difference. Result has 609 places, 653 transitions, 20381 flow [2021-03-25 12:20:07,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=20336, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20381, PETRI_PLACES=609, PETRI_TRANSITIONS=653} [2021-03-25 12:20:07,558 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 562 predicate places. [2021-03-25 12:20:07,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:07,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 609 places, 653 transitions, 20381 flow [2021-03-25 12:20:07,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 609 places, 653 transitions, 20381 flow [2021-03-25 12:20:07,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 606 places, 653 transitions, 20381 flow [2021-03-25 12:20:07,888 INFO L129 PetriNetUnfolder]: 429/1232 cut-off events. [2021-03-25 12:20:07,888 INFO L130 PetriNetUnfolder]: For 205147/205212 co-relation queries the response was YES. [2021-03-25 12:20:07,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22353 conditions, 1232 events. 429/1232 cut-off events. For 205147/205212 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10441 event pairs, 39 based on Foata normal form. 8/1236 useless extension candidates. Maximal degree in co-relation 22093. Up to 394 conditions per place. [2021-03-25 12:20:07,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 986 [2021-03-25 12:20:07,974 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:07,975 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:07,975 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 417 [2021-03-25 12:20:07,975 INFO L480 AbstractCegarLoop]: Abstraction has has 606 places, 653 transitions, 20381 flow [2021-03-25 12:20:07,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:07,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:07,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:07,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2021-03-25 12:20:07,975 INFO L428 AbstractCegarLoop]: === Iteration 401 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:07,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:07,975 INFO L82 PathProgramCache]: Analyzing trace with hash -294330868, now seen corresponding path program 28 times [2021-03-25 12:20:07,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:07,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091453376] [2021-03-25 12:20:07,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:07,981 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:07,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:07,986 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:07,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:07,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:07,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:08,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:08,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:08,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:08,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:08,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:08,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:08,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:08,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:08,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:08,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:08,055 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:08,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:08,071 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:08,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:08,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091453376] [2021-03-25 12:20:08,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:08,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:08,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928218020] [2021-03-25 12:20:08,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:08,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:08,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:08,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:08,074 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:20:08,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 653 transitions, 20381 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:08,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:08,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:20:08,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:08,877 INFO L129 PetriNetUnfolder]: 443/1234 cut-off events. [2021-03-25 12:20:08,877 INFO L130 PetriNetUnfolder]: For 210460/210540 co-relation queries the response was YES. [2021-03-25 12:20:08,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23528 conditions, 1234 events. 443/1234 cut-off events. For 210460/210540 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 10167 event pairs, 44 based on Foata normal form. 32/1265 useless extension candidates. Maximal degree in co-relation 23266. Up to 976 conditions per place. [2021-03-25 12:20:08,905 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 617 selfloop transitions, 24 changer transitions 7/656 dead transitions. [2021-03-25 12:20:08,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 656 transitions, 21747 flow [2021-03-25 12:20:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:20:08,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:20:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 382 transitions. [2021-03-25 12:20:08,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22603550295857988 [2021-03-25 12:20:08,907 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 382 transitions. [2021-03-25 12:20:08,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 382 transitions. [2021-03-25 12:20:08,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:08,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 382 transitions. [2021-03-25 12:20:08,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.384615384615383) internal successors, (382), 13 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:08,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:08,908 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:08,908 INFO L185 Difference]: Start difference. First operand has 606 places, 653 transitions, 20381 flow. Second operand 13 states and 382 transitions. [2021-03-25 12:20:08,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 656 transitions, 21747 flow [2021-03-25 12:20:10,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 656 transitions, 21636 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:20:10,154 INFO L241 Difference]: Finished difference. Result has 608 places, 647 transitions, 20116 flow [2021-03-25 12:20:10,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=20270, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20116, PETRI_PLACES=608, PETRI_TRANSITIONS=647} [2021-03-25 12:20:10,155 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 561 predicate places. [2021-03-25 12:20:10,155 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:10,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 608 places, 647 transitions, 20116 flow [2021-03-25 12:20:10,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 608 places, 647 transitions, 20116 flow [2021-03-25 12:20:10,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 602 places, 647 transitions, 20116 flow [2021-03-25 12:20:10,466 INFO L129 PetriNetUnfolder]: 427/1222 cut-off events. [2021-03-25 12:20:10,466 INFO L130 PetriNetUnfolder]: For 201533/201589 co-relation queries the response was YES. [2021-03-25 12:20:10,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22145 conditions, 1222 events. 427/1222 cut-off events. For 201533/201589 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10342 event pairs, 37 based on Foata normal form. 3/1220 useless extension candidates. Maximal degree in co-relation 21886. Up to 389 conditions per place. [2021-03-25 12:20:10,504 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 12:20:10,547 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:10,548 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:10,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 393 [2021-03-25 12:20:10,548 INFO L480 AbstractCegarLoop]: Abstraction has has 602 places, 647 transitions, 20116 flow [2021-03-25 12:20:10,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:10,548 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:10,548 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:10,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2021-03-25 12:20:10,548 INFO L428 AbstractCegarLoop]: === Iteration 402 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash -884273234, now seen corresponding path program 29 times [2021-03-25 12:20:10,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:10,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453602744] [2021-03-25 12:20:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:10,554 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:10,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:10,559 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:10,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:10,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:10,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:10,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:10,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:10,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:10,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:10,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:10,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:10,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:10,625 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:10,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:10,640 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:10,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:10,657 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:10,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:10,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453602744] [2021-03-25 12:20:10,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:10,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:20:10,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662403625] [2021-03-25 12:20:10,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:20:10,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:10,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:20:10,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:20:10,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:20:10,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 647 transitions, 20116 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:10,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:10,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:20:10,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:11,725 INFO L129 PetriNetUnfolder]: 448/1251 cut-off events. [2021-03-25 12:20:11,725 INFO L130 PetriNetUnfolder]: For 226630/226786 co-relation queries the response was YES. [2021-03-25 12:20:11,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24325 conditions, 1251 events. 448/1251 cut-off events. For 226630/226786 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 10318 event pairs, 30 based on Foata normal form. 58/1309 useless extension candidates. Maximal degree in co-relation 24064. Up to 808 conditions per place. [2021-03-25 12:20:11,753 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 478 selfloop transitions, 184 changer transitions 6/676 dead transitions. [2021-03-25 12:20:11,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 676 transitions, 23801 flow [2021-03-25 12:20:11,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:20:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:20:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 513 transitions. [2021-03-25 12:20:11,755 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2466346153846154 [2021-03-25 12:20:11,755 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 513 transitions. [2021-03-25 12:20:11,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 513 transitions. [2021-03-25 12:20:11,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:11,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 513 transitions. [2021-03-25 12:20:11,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 32.0625) internal successors, (513), 16 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:11,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 130.0) internal successors, (2210), 17 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:11,756 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 130.0) internal successors, (2210), 17 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:11,756 INFO L185 Difference]: Start difference. First operand has 602 places, 647 transitions, 20116 flow. Second operand 16 states and 513 transitions. [2021-03-25 12:20:11,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 676 transitions, 23801 flow [2021-03-25 12:20:13,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 601 places, 676 transitions, 23593 flow, removed 24 selfloop flow, removed 16 redundant places. [2021-03-25 12:20:13,044 INFO L241 Difference]: Finished difference. Result has 606 places, 660 transitions, 21607 flow [2021-03-25 12:20:13,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=19932, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=21607, PETRI_PLACES=606, PETRI_TRANSITIONS=660} [2021-03-25 12:20:13,045 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 559 predicate places. [2021-03-25 12:20:13,045 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:13,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 606 places, 660 transitions, 21607 flow [2021-03-25 12:20:13,045 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 606 places, 660 transitions, 21607 flow [2021-03-25 12:20:13,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 606 places, 660 transitions, 21607 flow [2021-03-25 12:20:13,382 INFO L129 PetriNetUnfolder]: 430/1236 cut-off events. [2021-03-25 12:20:13,382 INFO L130 PetriNetUnfolder]: For 219689/219746 co-relation queries the response was YES. [2021-03-25 12:20:13,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23092 conditions, 1236 events. 430/1236 cut-off events. For 219689/219746 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10523 event pairs, 36 based on Foata normal form. 5/1236 useless extension candidates. Maximal degree in co-relation 22813. Up to 400 conditions per place. [2021-03-25 12:20:13,424 INFO L142 LiptonReduction]: Number of co-enabled transitions 1022 [2021-03-25 12:20:13,474 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:13,474 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:13,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 429 [2021-03-25 12:20:13,474 INFO L480 AbstractCegarLoop]: Abstraction has has 606 places, 660 transitions, 21607 flow [2021-03-25 12:20:13,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:13,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:13,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:13,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2021-03-25 12:20:13,474 INFO L428 AbstractCegarLoop]: === Iteration 403 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:13,475 INFO L82 PathProgramCache]: Analyzing trace with hash 936515478, now seen corresponding path program 30 times [2021-03-25 12:20:13,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:13,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457858591] [2021-03-25 12:20:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:13,480 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:13,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:13,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:13,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:13,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:13,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:13,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:13,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:13,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:13,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:13,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:13,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:13,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:13,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:13,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:13,571 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:13,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:13,599 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:13,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457858591] [2021-03-25 12:20:13,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:13,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:20:13,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600019179] [2021-03-25 12:20:13,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:20:13,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:13,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:20:13,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:20:13,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:20:13,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 660 transitions, 21607 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:13,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:13,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:20:13,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:14,554 INFO L129 PetriNetUnfolder]: 446/1251 cut-off events. [2021-03-25 12:20:14,555 INFO L130 PetriNetUnfolder]: For 225988/226068 co-relation queries the response was YES. [2021-03-25 12:20:14,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24483 conditions, 1251 events. 446/1251 cut-off events. For 225988/226068 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 10332 event pairs, 45 based on Foata normal form. 54/1304 useless extension candidates. Maximal degree in co-relation 24202. Up to 979 conditions per place. [2021-03-25 12:20:14,584 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 612 selfloop transitions, 36 changer transitions 6/662 dead transitions. [2021-03-25 12:20:14,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 662 transitions, 22936 flow [2021-03-25 12:20:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:20:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:20:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 385 transitions. [2021-03-25 12:20:14,585 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22781065088757396 [2021-03-25 12:20:14,585 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 385 transitions. [2021-03-25 12:20:14,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 385 transitions. [2021-03-25 12:20:14,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:14,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 385 transitions. [2021-03-25 12:20:14,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.615384615384617) internal successors, (385), 13 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:14,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:14,586 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:14,586 INFO L185 Difference]: Start difference. First operand has 606 places, 660 transitions, 21607 flow. Second operand 13 states and 385 transitions. [2021-03-25 12:20:14,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 662 transitions, 22936 flow [2021-03-25 12:20:16,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 662 transitions, 22081 flow, removed 357 selfloop flow, removed 9 redundant places. [2021-03-25 12:20:16,083 INFO L241 Difference]: Finished difference. Result has 610 places, 654 transitions, 20684 flow [2021-03-25 12:20:16,084 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=20752, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20684, PETRI_PLACES=610, PETRI_TRANSITIONS=654} [2021-03-25 12:20:16,084 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 563 predicate places. [2021-03-25 12:20:16,084 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:16,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 610 places, 654 transitions, 20684 flow [2021-03-25 12:20:16,084 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 610 places, 654 transitions, 20684 flow [2021-03-25 12:20:16,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 603 places, 654 transitions, 20684 flow [2021-03-25 12:20:16,440 INFO L129 PetriNetUnfolder]: 431/1223 cut-off events. [2021-03-25 12:20:16,440 INFO L130 PetriNetUnfolder]: For 210236/210300 co-relation queries the response was YES. [2021-03-25 12:20:16,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22630 conditions, 1223 events. 431/1223 cut-off events. For 210236/210300 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10355 event pairs, 37 based on Foata normal form. 11/1230 useless extension candidates. Maximal degree in co-relation 22371. Up to 395 conditions per place. [2021-03-25 12:20:16,485 INFO L142 LiptonReduction]: Number of co-enabled transitions 1006 [2021-03-25 12:20:16,534 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:16,534 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:16,534 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 450 [2021-03-25 12:20:16,534 INFO L480 AbstractCegarLoop]: Abstraction has has 603 places, 654 transitions, 20684 flow [2021-03-25 12:20:16,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:16,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:16,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:16,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2021-03-25 12:20:16,535 INFO L428 AbstractCegarLoop]: === Iteration 404 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:16,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:16,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1168965072, now seen corresponding path program 31 times [2021-03-25 12:20:16,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:16,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359064828] [2021-03-25 12:20:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:16,541 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:16,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:16,546 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:16,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:16,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:16,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:16,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:16,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:16,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:16,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:16,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:16,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:16,590 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:16,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:16,593 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:16,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:16,606 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:16,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:16,621 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:16,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:16,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359064828] [2021-03-25 12:20:16,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:16,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:16,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995816417] [2021-03-25 12:20:16,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:16,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:16,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:16,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:16,624 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 130 [2021-03-25 12:20:16,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 654 transitions, 20684 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:16,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:16,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 130 [2021-03-25 12:20:16,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:17,619 INFO L129 PetriNetUnfolder]: 449/1259 cut-off events. [2021-03-25 12:20:17,619 INFO L130 PetriNetUnfolder]: For 218656/218736 co-relation queries the response was YES. [2021-03-25 12:20:17,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24272 conditions, 1259 events. 449/1259 cut-off events. For 218656/218736 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10372 event pairs, 45 based on Foata normal form. 32/1290 useless extension candidates. Maximal degree in co-relation 24011. Up to 964 conditions per place. [2021-03-25 12:20:17,659 INFO L132 encePairwiseOnDemand]: 115/130 looper letters, 591 selfloop transitions, 67 changer transitions 2/668 dead transitions. [2021-03-25 12:20:17,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 668 transitions, 23058 flow [2021-03-25 12:20:17,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:20:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:20:17,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 380 transitions. [2021-03-25 12:20:17,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24358974358974358 [2021-03-25 12:20:17,660 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 380 transitions. [2021-03-25 12:20:17,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 380 transitions. [2021-03-25 12:20:17,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:17,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 380 transitions. [2021-03-25 12:20:17,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.666666666666668) internal successors, (380), 12 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:17,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:17,662 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:17,662 INFO L185 Difference]: Start difference. First operand has 603 places, 654 transitions, 20684 flow. Second operand 12 states and 380 transitions. [2021-03-25 12:20:17,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 668 transitions, 23058 flow [2021-03-25 12:20:19,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 668 transitions, 22847 flow, removed 20 selfloop flow, removed 16 redundant places. [2021-03-25 12:20:19,216 INFO L241 Difference]: Finished difference. Result has 600 places, 663 transitions, 21379 flow [2021-03-25 12:20:19,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=20481, PETRI_DIFFERENCE_MINUEND_PLACES=587, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21379, PETRI_PLACES=600, PETRI_TRANSITIONS=663} [2021-03-25 12:20:19,216 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 553 predicate places. [2021-03-25 12:20:19,216 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:19,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 600 places, 663 transitions, 21379 flow [2021-03-25 12:20:19,216 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 600 places, 663 transitions, 21379 flow [2021-03-25 12:20:19,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 600 places, 663 transitions, 21379 flow [2021-03-25 12:20:19,544 INFO L129 PetriNetUnfolder]: 434/1246 cut-off events. [2021-03-25 12:20:19,545 INFO L130 PetriNetUnfolder]: For 207711/207765 co-relation queries the response was YES. [2021-03-25 12:20:19,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23011 conditions, 1246 events. 434/1246 cut-off events. For 207711/207765 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10550 event pairs, 36 based on Foata normal form. 5/1247 useless extension candidates. Maximal degree in co-relation 22736. Up to 406 conditions per place. [2021-03-25 12:20:19,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-25 12:20:19,723 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:19,723 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:20:19,723 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 507 [2021-03-25 12:20:19,723 INFO L480 AbstractCegarLoop]: Abstraction has has 600 places, 663 transitions, 21492 flow [2021-03-25 12:20:19,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:19,723 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:19,723 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:19,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2021-03-25 12:20:19,723 INFO L428 AbstractCegarLoop]: === Iteration 405 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:19,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:19,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1621094157, now seen corresponding path program 8 times [2021-03-25 12:20:19,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:19,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383129913] [2021-03-25 12:20:19,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:19,729 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:19,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:19,734 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:19,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:19,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:19,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:19,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:19,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:19,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:19,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:19,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:19,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:19,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:19,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:19,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:19,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:19,801 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:19,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:19,807 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:19,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:19,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:19,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383129913] [2021-03-25 12:20:19,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:19,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:19,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492815010] [2021-03-25 12:20:19,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:19,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:19,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:19,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:19,810 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:19,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 663 transitions, 21492 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:19,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:19,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:19,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:20,825 INFO L129 PetriNetUnfolder]: 462/1286 cut-off events. [2021-03-25 12:20:20,825 INFO L130 PetriNetUnfolder]: For 235053/235133 co-relation queries the response was YES. [2021-03-25 12:20:20,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25321 conditions, 1286 events. 462/1286 cut-off events. For 235053/235133 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10609 event pairs, 39 based on Foata normal form. 42/1328 useless extension candidates. Maximal degree in co-relation 25043. Up to 922 conditions per place. [2021-03-25 12:20:20,855 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 516 selfloop transitions, 157 changer transitions 6/687 dead transitions. [2021-03-25 12:20:20,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 687 transitions, 24598 flow [2021-03-25 12:20:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:20:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:20:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2021-03-25 12:20:20,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.250381679389313 [2021-03-25 12:20:20,856 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 328 transitions. [2021-03-25 12:20:20,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 328 transitions. [2021-03-25 12:20:20,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:20,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 328 transitions. [2021-03-25 12:20:20,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.8) internal successors, (328), 10 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:20,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:20,857 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:20,857 INFO L185 Difference]: Start difference. First operand has 600 places, 663 transitions, 21492 flow. Second operand 10 states and 328 transitions. [2021-03-25 12:20:20,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 609 places, 687 transitions, 24598 flow [2021-03-25 12:20:22,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 687 transitions, 23896 flow, removed 329 selfloop flow, removed 6 redundant places. [2021-03-25 12:20:22,403 INFO L241 Difference]: Finished difference. Result has 606 places, 677 transitions, 22287 flow [2021-03-25 12:20:22,403 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=20790, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22287, PETRI_PLACES=606, PETRI_TRANSITIONS=677} [2021-03-25 12:20:22,404 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 559 predicate places. [2021-03-25 12:20:22,404 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:22,404 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 606 places, 677 transitions, 22287 flow [2021-03-25 12:20:22,404 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 606 places, 677 transitions, 22287 flow [2021-03-25 12:20:22,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 605 places, 677 transitions, 22287 flow [2021-03-25 12:20:22,790 INFO L129 PetriNetUnfolder]: 441/1256 cut-off events. [2021-03-25 12:20:22,791 INFO L130 PetriNetUnfolder]: For 224020/224026 co-relation queries the response was YES. [2021-03-25 12:20:22,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23670 conditions, 1256 events. 441/1256 cut-off events. For 224020/224026 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 10693 event pairs, 26 based on Foata normal form. 5/1261 useless extension candidates. Maximal degree in co-relation 23390. Up to 404 conditions per place. [2021-03-25 12:20:22,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-25 12:20:22,873 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:22,874 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:22,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 470 [2021-03-25 12:20:22,874 INFO L480 AbstractCegarLoop]: Abstraction has has 605 places, 677 transitions, 22287 flow [2021-03-25 12:20:22,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:22,874 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:22,874 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:22,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2021-03-25 12:20:22,874 INFO L428 AbstractCegarLoop]: === Iteration 406 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:22,874 INFO L82 PathProgramCache]: Analyzing trace with hash -2084348698, now seen corresponding path program 1 times [2021-03-25 12:20:22,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:22,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474382175] [2021-03-25 12:20:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:22,880 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:22,885 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:22,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:22,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:22,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:22,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:22,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:22,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:22,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:22,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:22,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:22,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:22,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:22,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:22,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:20:22,941 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:20:22,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:22,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:20:22,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:22,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474382175] [2021-03-25 12:20:22,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:22,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:20:22,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938935010] [2021-03-25 12:20:22,951 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:20:22,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:22,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:20:22,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:20:22,951 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:22,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 677 transitions, 22287 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:22,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:22,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:22,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:23,821 INFO L129 PetriNetUnfolder]: 461/1290 cut-off events. [2021-03-25 12:20:23,821 INFO L130 PetriNetUnfolder]: For 231871/231932 co-relation queries the response was YES. [2021-03-25 12:20:23,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25254 conditions, 1290 events. 461/1290 cut-off events. For 231871/231932 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10645 event pairs, 46 based on Foata normal form. 32/1322 useless extension candidates. Maximal degree in co-relation 24972. Up to 1000 conditions per place. [2021-03-25 12:20:23,852 INFO L132 encePairwiseOnDemand]: 116/131 looper letters, 618 selfloop transitions, 58 changer transitions 5/689 dead transitions. [2021-03-25 12:20:23,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 689 transitions, 24194 flow [2021-03-25 12:20:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:20:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:20:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2021-03-25 12:20:23,853 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2480916030534351 [2021-03-25 12:20:23,853 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 325 transitions. [2021-03-25 12:20:23,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 325 transitions. [2021-03-25 12:20:23,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:23,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 325 transitions. [2021-03-25 12:20:23,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.5) internal successors, (325), 10 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:23,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:23,854 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:23,854 INFO L185 Difference]: Start difference. First operand has 605 places, 677 transitions, 22287 flow. Second operand 10 states and 325 transitions. [2021-03-25 12:20:23,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 689 transitions, 24194 flow [2021-03-25 12:20:25,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 689 transitions, 23347 flow, removed 340 selfloop flow, removed 4 redundant places. [2021-03-25 12:20:25,438 INFO L241 Difference]: Finished difference. Result has 613 places, 681 transitions, 21826 flow [2021-03-25 12:20:25,438 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21442, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21826, PETRI_PLACES=613, PETRI_TRANSITIONS=681} [2021-03-25 12:20:25,438 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 566 predicate places. [2021-03-25 12:20:25,438 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:25,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 613 places, 681 transitions, 21826 flow [2021-03-25 12:20:25,439 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 613 places, 681 transitions, 21826 flow [2021-03-25 12:20:25,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 613 places, 681 transitions, 21826 flow [2021-03-25 12:20:25,808 INFO L129 PetriNetUnfolder]: 443/1250 cut-off events. [2021-03-25 12:20:25,808 INFO L130 PetriNetUnfolder]: For 213773/213801 co-relation queries the response was YES. [2021-03-25 12:20:25,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23222 conditions, 1250 events. 443/1250 cut-off events. For 213773/213801 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10447 event pairs, 36 based on Foata normal form. 5/1251 useless extension candidates. Maximal degree in co-relation 22939. Up to 398 conditions per place. [2021-03-25 12:20:25,852 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-25 12:20:25,902 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:25,902 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:25,902 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 464 [2021-03-25 12:20:25,903 INFO L480 AbstractCegarLoop]: Abstraction has has 613 places, 681 transitions, 21826 flow [2021-03-25 12:20:25,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:25,903 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:25,903 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:25,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2021-03-25 12:20:25,903 INFO L428 AbstractCegarLoop]: === Iteration 407 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:25,903 INFO L82 PathProgramCache]: Analyzing trace with hash 538461375, now seen corresponding path program 9 times [2021-03-25 12:20:25,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:25,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283406935] [2021-03-25 12:20:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:25,909 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:25,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:25,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:25,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:25,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:25,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:25,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:25,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:25,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:25,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:25,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:25,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:25,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:25,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:25,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:25,986 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:20:25,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:26,002 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:26,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:26,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283406935] [2021-03-25 12:20:26,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:26,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:26,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912109200] [2021-03-25 12:20:26,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:26,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:26,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:26,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:26,005 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:26,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 681 transitions, 21826 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:26,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:26,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:26,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:27,031 INFO L129 PetriNetUnfolder]: 461/1284 cut-off events. [2021-03-25 12:20:27,031 INFO L130 PetriNetUnfolder]: For 225757/225902 co-relation queries the response was YES. [2021-03-25 12:20:27,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24712 conditions, 1284 events. 461/1284 cut-off events. For 225757/225902 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10593 event pairs, 30 based on Foata normal form. 65/1349 useless extension candidates. Maximal degree in co-relation 24427. Up to 915 conditions per place. [2021-03-25 12:20:27,061 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 554 selfloop transitions, 127 changer transitions 2/691 dead transitions. [2021-03-25 12:20:27,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 691 transitions, 23592 flow [2021-03-25 12:20:27,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:20:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:20:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 359 transitions. [2021-03-25 12:20:27,062 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24913254684247052 [2021-03-25 12:20:27,062 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 359 transitions. [2021-03-25 12:20:27,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 359 transitions. [2021-03-25 12:20:27,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:27,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 359 transitions. [2021-03-25 12:20:27,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.63636363636363) internal successors, (359), 11 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:27,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:27,063 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:27,063 INFO L185 Difference]: Start difference. First operand has 613 places, 681 transitions, 21826 flow. Second operand 11 states and 359 transitions. [2021-03-25 12:20:27,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 691 transitions, 23592 flow [2021-03-25 12:20:28,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 691 transitions, 23460 flow, removed 28 selfloop flow, removed 6 redundant places. [2021-03-25 12:20:28,365 INFO L241 Difference]: Finished difference. Result has 620 places, 683 transitions, 22176 flow [2021-03-25 12:20:28,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21696, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22176, PETRI_PLACES=620, PETRI_TRANSITIONS=683} [2021-03-25 12:20:28,365 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 573 predicate places. [2021-03-25 12:20:28,365 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:28,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 620 places, 683 transitions, 22176 flow [2021-03-25 12:20:28,365 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 620 places, 683 transitions, 22176 flow [2021-03-25 12:20:28,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 619 places, 683 transitions, 22176 flow [2021-03-25 12:20:28,696 INFO L129 PetriNetUnfolder]: 445/1266 cut-off events. [2021-03-25 12:20:28,696 INFO L130 PetriNetUnfolder]: For 208708/208763 co-relation queries the response was YES. [2021-03-25 12:20:28,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23403 conditions, 1266 events. 445/1266 cut-off events. For 208708/208763 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10698 event pairs, 30 based on Foata normal form. 7/1270 useless extension candidates. Maximal degree in co-relation 23117. Up to 399 conditions per place. [2021-03-25 12:20:28,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 1012 [2021-03-25 12:20:28,788 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:28,788 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:28,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 423 [2021-03-25 12:20:28,788 INFO L480 AbstractCegarLoop]: Abstraction has has 619 places, 683 transitions, 22176 flow [2021-03-25 12:20:28,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:28,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:28,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:28,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2021-03-25 12:20:28,789 INFO L428 AbstractCegarLoop]: === Iteration 408 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:28,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:28,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1836353280, now seen corresponding path program 2 times [2021-03-25 12:20:28,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:28,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788136150] [2021-03-25 12:20:28,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:28,794 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:28,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:28,799 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:28,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:28,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:28,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:28,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:28,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:20:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:28,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:20:28,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:28,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788136150] [2021-03-25 12:20:28,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:28,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:20:28,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698383926] [2021-03-25 12:20:28,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:20:28,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:28,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:20:28,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:20:28,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:28,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 683 transitions, 22176 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:28,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:28,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:28,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:29,729 INFO L129 PetriNetUnfolder]: 466/1289 cut-off events. [2021-03-25 12:20:29,729 INFO L130 PetriNetUnfolder]: For 226555/226635 co-relation queries the response was YES. [2021-03-25 12:20:29,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25336 conditions, 1289 events. 466/1289 cut-off events. For 226555/226635 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10615 event pairs, 40 based on Foata normal form. 42/1331 useless extension candidates. Maximal degree in co-relation 25049. Up to 999 conditions per place. [2021-03-25 12:20:29,758 INFO L132 encePairwiseOnDemand]: 114/131 looper letters, 621 selfloop transitions, 62 changer transitions 2/693 dead transitions. [2021-03-25 12:20:29,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 693 transitions, 24321 flow [2021-03-25 12:20:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:20:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:20:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2021-03-25 12:20:29,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24885496183206107 [2021-03-25 12:20:29,760 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 326 transitions. [2021-03-25 12:20:29,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 326 transitions. [2021-03-25 12:20:29,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:29,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 326 transitions. [2021-03-25 12:20:29,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.6) internal successors, (326), 10 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:29,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:29,761 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:29,761 INFO L185 Difference]: Start difference. First operand has 619 places, 683 transitions, 22176 flow. Second operand 10 states and 326 transitions. [2021-03-25 12:20:29,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 693 transitions, 24321 flow [2021-03-25 12:20:31,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 693 transitions, 23882 flow, removed 90 selfloop flow, removed 9 redundant places. [2021-03-25 12:20:31,110 INFO L241 Difference]: Finished difference. Result has 621 places, 686 transitions, 22300 flow [2021-03-25 12:20:31,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21743, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22300, PETRI_PLACES=621, PETRI_TRANSITIONS=686} [2021-03-25 12:20:31,111 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:20:31,111 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:31,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 686 transitions, 22300 flow [2021-03-25 12:20:31,111 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 686 transitions, 22300 flow [2021-03-25 12:20:31,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 621 places, 686 transitions, 22300 flow [2021-03-25 12:20:31,452 INFO L129 PetriNetUnfolder]: 447/1248 cut-off events. [2021-03-25 12:20:31,452 INFO L130 PetriNetUnfolder]: For 221992/221998 co-relation queries the response was YES. [2021-03-25 12:20:31,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23697 conditions, 1248 events. 447/1248 cut-off events. For 221992/221998 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10462 event pairs, 34 based on Foata normal form. 5/1252 useless extension candidates. Maximal degree in co-relation 23411. Up to 403 conditions per place. [2021-03-25 12:20:31,492 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:20:31,538 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:31,538 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:31,538 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 427 [2021-03-25 12:20:31,538 INFO L480 AbstractCegarLoop]: Abstraction has has 621 places, 686 transitions, 22300 flow [2021-03-25 12:20:31,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:31,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:31,538 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:31,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2021-03-25 12:20:31,538 INFO L428 AbstractCegarLoop]: === Iteration 409 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:31,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:31,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1224879522, now seen corresponding path program 3 times [2021-03-25 12:20:31,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:31,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129178180] [2021-03-25 12:20:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:31,544 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:31,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:31,549 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:31,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:31,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:31,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:31,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:31,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:31,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:31,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:20:31,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:31,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:31,616 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:20:31,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:31,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129178180] [2021-03-25 12:20:31,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:31,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:31,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453158595] [2021-03-25 12:20:31,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:31,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:31,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:31,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:31,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:31,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 686 transitions, 22300 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:31,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:31,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:31,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:32,584 INFO L129 PetriNetUnfolder]: 465/1285 cut-off events. [2021-03-25 12:20:32,584 INFO L130 PetriNetUnfolder]: For 229597/229766 co-relation queries the response was YES. [2021-03-25 12:20:32,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25095 conditions, 1285 events. 465/1285 cut-off events. For 229597/229766 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10567 event pairs, 40 based on Foata normal form. 53/1338 useless extension candidates. Maximal degree in co-relation 24808. Up to 987 conditions per place. [2021-03-25 12:20:32,617 INFO L132 encePairwiseOnDemand]: 114/131 looper letters, 607 selfloop transitions, 74 changer transitions 3/692 dead transitions. [2021-03-25 12:20:32,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 692 transitions, 24079 flow [2021-03-25 12:20:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:20:32,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:20:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 356 transitions. [2021-03-25 12:20:32,618 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24705065926439973 [2021-03-25 12:20:32,618 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 356 transitions. [2021-03-25 12:20:32,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 356 transitions. [2021-03-25 12:20:32,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:32,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 356 transitions. [2021-03-25 12:20:32,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.36363636363637) internal successors, (356), 11 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:32,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:32,619 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:32,619 INFO L185 Difference]: Start difference. First operand has 621 places, 686 transitions, 22300 flow. Second operand 11 states and 356 transitions. [2021-03-25 12:20:32,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 692 transitions, 24079 flow [2021-03-25 12:20:34,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 692 transitions, 23826 flow, removed 93 selfloop flow, removed 6 redundant places. [2021-03-25 12:20:34,205 INFO L241 Difference]: Finished difference. Result has 627 places, 684 transitions, 22223 flow [2021-03-25 12:20:34,206 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=22047, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22223, PETRI_PLACES=627, PETRI_TRANSITIONS=684} [2021-03-25 12:20:34,206 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 580 predicate places. [2021-03-25 12:20:34,206 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:34,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 627 places, 684 transitions, 22223 flow [2021-03-25 12:20:34,206 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 627 places, 684 transitions, 22223 flow [2021-03-25 12:20:34,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 627 places, 684 transitions, 22223 flow [2021-03-25 12:20:34,579 INFO L129 PetriNetUnfolder]: 448/1256 cut-off events. [2021-03-25 12:20:34,580 INFO L130 PetriNetUnfolder]: For 216804/216840 co-relation queries the response was YES. [2021-03-25 12:20:34,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23795 conditions, 1256 events. 448/1256 cut-off events. For 216804/216840 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10570 event pairs, 25 based on Foata normal form. 7/1263 useless extension candidates. Maximal degree in co-relation 23509. Up to 402 conditions per place. [2021-03-25 12:20:34,626 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:20:34,709 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:34,709 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:34,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 503 [2021-03-25 12:20:34,709 INFO L480 AbstractCegarLoop]: Abstraction has has 627 places, 684 transitions, 22223 flow [2021-03-25 12:20:34,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:34,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:34,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:34,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2021-03-25 12:20:34,710 INFO L428 AbstractCegarLoop]: === Iteration 410 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:34,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:34,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1318443892, now seen corresponding path program 4 times [2021-03-25 12:20:34,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:34,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675857797] [2021-03-25 12:20:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:34,720 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:34,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:34,726 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:34,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:34,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:34,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:34,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:34,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:34,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:34,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:34,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:34,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:34,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:34,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:34,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:34,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:20:34,795 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:20:34,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:34,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:20:34,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:20:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:34,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675857797] [2021-03-25 12:20:34,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:34,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:20:34,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279219468] [2021-03-25 12:20:34,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:20:34,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:34,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:20:34,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:20:34,806 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:34,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 684 transitions, 22223 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:34,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:34,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:34,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:35,697 INFO L129 PetriNetUnfolder]: 465/1284 cut-off events. [2021-03-25 12:20:35,698 INFO L130 PetriNetUnfolder]: For 227584/227671 co-relation queries the response was YES. [2021-03-25 12:20:35,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25161 conditions, 1284 events. 465/1284 cut-off events. For 227584/227671 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10555 event pairs, 46 based on Foata normal form. 39/1322 useless extension candidates. Maximal degree in co-relation 24872. Up to 969 conditions per place. [2021-03-25 12:20:35,730 INFO L132 encePairwiseOnDemand]: 116/131 looper letters, 563 selfloop transitions, 114 changer transitions 6/691 dead transitions. [2021-03-25 12:20:35,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 691 transitions, 23979 flow [2021-03-25 12:20:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:20:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:20:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2021-03-25 12:20:35,731 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24656488549618322 [2021-03-25 12:20:35,731 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 323 transitions. [2021-03-25 12:20:35,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 323 transitions. [2021-03-25 12:20:35,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:35,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 323 transitions. [2021-03-25 12:20:35,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:35,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:35,732 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:35,732 INFO L185 Difference]: Start difference. First operand has 627 places, 684 transitions, 22223 flow. Second operand 10 states and 323 transitions. [2021-03-25 12:20:35,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 691 transitions, 23979 flow [2021-03-25 12:20:37,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 691 transitions, 23768 flow, removed 6 selfloop flow, removed 13 redundant places. [2021-03-25 12:20:37,298 INFO L241 Difference]: Finished difference. Result has 627 places, 682 transitions, 22292 flow [2021-03-25 12:20:37,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=22016, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22292, PETRI_PLACES=627, PETRI_TRANSITIONS=682} [2021-03-25 12:20:37,298 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 580 predicate places. [2021-03-25 12:20:37,298 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:37,298 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 627 places, 682 transitions, 22292 flow [2021-03-25 12:20:37,298 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 627 places, 682 transitions, 22292 flow [2021-03-25 12:20:37,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 626 places, 682 transitions, 22292 flow [2021-03-25 12:20:37,654 INFO L129 PetriNetUnfolder]: 446/1247 cut-off events. [2021-03-25 12:20:37,654 INFO L130 PetriNetUnfolder]: For 220835/220866 co-relation queries the response was YES. [2021-03-25 12:20:37,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23687 conditions, 1247 events. 446/1247 cut-off events. For 220835/220866 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10510 event pairs, 32 based on Foata normal form. 11/1258 useless extension candidates. Maximal degree in co-relation 23400. Up to 396 conditions per place. [2021-03-25 12:20:37,697 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:20:37,749 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:37,749 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:37,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 451 [2021-03-25 12:20:37,749 INFO L480 AbstractCegarLoop]: Abstraction has has 626 places, 682 transitions, 22292 flow [2021-03-25 12:20:37,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:37,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:37,749 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:37,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2021-03-25 12:20:37,749 INFO L428 AbstractCegarLoop]: === Iteration 411 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:37,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:37,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1515460456, now seen corresponding path program 32 times [2021-03-25 12:20:37,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:37,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395492552] [2021-03-25 12:20:37,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:37,755 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:37,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:37,760 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:37,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:37,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:37,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:37,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:37,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:37,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:37,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:37,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:37,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:37,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:37,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:37,839 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:37,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:37,854 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:37,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:37,870 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:37,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:37,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395492552] [2021-03-25 12:20:37,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:37,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:37,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268340999] [2021-03-25 12:20:37,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:37,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:37,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:37,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:37,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:37,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 682 transitions, 22292 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:37,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:37,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:37,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:38,927 INFO L129 PetriNetUnfolder]: 464/1279 cut-off events. [2021-03-25 12:20:38,927 INFO L130 PetriNetUnfolder]: For 223819/223899 co-relation queries the response was YES. [2021-03-25 12:20:38,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25188 conditions, 1279 events. 464/1279 cut-off events. For 223819/223899 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10478 event pairs, 45 based on Foata normal form. 32/1310 useless extension candidates. Maximal degree in co-relation 24898. Up to 994 conditions per place. [2021-03-25 12:20:38,959 INFO L132 encePairwiseOnDemand]: 116/131 looper letters, 610 selfloop transitions, 70 changer transitions 5/693 dead transitions. [2021-03-25 12:20:38,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 641 places, 693 transitions, 24380 flow [2021-03-25 12:20:38,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:20:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:20:38,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 487 transitions. [2021-03-25 12:20:38,960 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23234732824427481 [2021-03-25 12:20:38,960 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 487 transitions. [2021-03-25 12:20:38,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 487 transitions. [2021-03-25 12:20:38,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:38,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 487 transitions. [2021-03-25 12:20:38,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 30.4375) internal successors, (487), 16 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:38,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 131.0) internal successors, (2227), 17 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:38,962 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 131.0) internal successors, (2227), 17 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:38,962 INFO L185 Difference]: Start difference. First operand has 626 places, 682 transitions, 22292 flow. Second operand 16 states and 487 transitions. [2021-03-25 12:20:38,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 641 places, 693 transitions, 24380 flow [2021-03-25 12:20:40,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 693 transitions, 24061 flow, removed 20 selfloop flow, removed 15 redundant places. [2021-03-25 12:20:40,508 INFO L241 Difference]: Finished difference. Result has 628 places, 685 transitions, 22398 flow [2021-03-25 12:20:40,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=22005, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22398, PETRI_PLACES=628, PETRI_TRANSITIONS=685} [2021-03-25 12:20:40,508 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 581 predicate places. [2021-03-25 12:20:40,508 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:40,509 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 628 places, 685 transitions, 22398 flow [2021-03-25 12:20:40,509 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 628 places, 685 transitions, 22398 flow [2021-03-25 12:20:40,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 627 places, 685 transitions, 22398 flow [2021-03-25 12:20:40,869 INFO L129 PetriNetUnfolder]: 443/1247 cut-off events. [2021-03-25 12:20:40,869 INFO L130 PetriNetUnfolder]: For 215804/215846 co-relation queries the response was YES. [2021-03-25 12:20:40,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23510 conditions, 1247 events. 443/1247 cut-off events. For 215804/215846 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10465 event pairs, 36 based on Foata normal form. 13/1260 useless extension candidates. Maximal degree in co-relation 23226. Up to 394 conditions per place. [2021-03-25 12:20:40,909 INFO L142 LiptonReduction]: Number of co-enabled transitions 1010 [2021-03-25 12:20:40,965 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:40,966 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:40,966 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 458 [2021-03-25 12:20:40,986 INFO L480 AbstractCegarLoop]: Abstraction has has 627 places, 685 transitions, 22398 flow [2021-03-25 12:20:40,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:40,986 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:40,986 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:40,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2021-03-25 12:20:40,986 INFO L428 AbstractCegarLoop]: === Iteration 412 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:40,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:40,986 INFO L82 PathProgramCache]: Analyzing trace with hash 308901250, now seen corresponding path program 33 times [2021-03-25 12:20:40,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:40,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639840871] [2021-03-25 12:20:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:40,996 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:41,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:41,009 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:41,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:41,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:41,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:41,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:41,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:41,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:41,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:41,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:41,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:41,055 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:41,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:41,058 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:41,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:41,071 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:41,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:41,085 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:41,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:41,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639840871] [2021-03-25 12:20:41,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:41,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:41,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311025480] [2021-03-25 12:20:41,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:41,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:41,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:41,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:41,089 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:41,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 685 transitions, 22398 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:41,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:41,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:41,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:41,989 INFO L129 PetriNetUnfolder]: 460/1278 cut-off events. [2021-03-25 12:20:41,989 INFO L130 PetriNetUnfolder]: For 219469/219631 co-relation queries the response was YES. [2021-03-25 12:20:42,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25015 conditions, 1278 events. 460/1278 cut-off events. For 219469/219631 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 10539 event pairs, 46 based on Foata normal form. 37/1314 useless extension candidates. Maximal degree in co-relation 24728. Up to 993 conditions per place. [2021-03-25 12:20:42,016 INFO L132 encePairwiseOnDemand]: 116/131 looper letters, 621 selfloop transitions, 60 changer transitions 5/694 dead transitions. [2021-03-25 12:20:42,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 694 transitions, 24336 flow [2021-03-25 12:20:42,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:20:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:20:42,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 377 transitions. [2021-03-25 12:20:42,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23982188295165394 [2021-03-25 12:20:42,017 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 377 transitions. [2021-03-25 12:20:42,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 377 transitions. [2021-03-25 12:20:42,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:42,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 377 transitions. [2021-03-25 12:20:42,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 12 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:42,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:42,019 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:42,019 INFO L185 Difference]: Start difference. First operand has 627 places, 685 transitions, 22398 flow. Second operand 12 states and 377 transitions. [2021-03-25 12:20:42,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 694 transitions, 24336 flow [2021-03-25 12:20:43,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 694 transitions, 23803 flow, removed 220 selfloop flow, removed 10 redundant places. [2021-03-25 12:20:43,386 INFO L241 Difference]: Finished difference. Result has 632 places, 686 transitions, 22179 flow [2021-03-25 12:20:43,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21867, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=22179, PETRI_PLACES=632, PETRI_TRANSITIONS=686} [2021-03-25 12:20:43,387 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 585 predicate places. [2021-03-25 12:20:43,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:43,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 632 places, 686 transitions, 22179 flow [2021-03-25 12:20:43,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 632 places, 686 transitions, 22179 flow [2021-03-25 12:20:43,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 632 places, 686 transitions, 22179 flow [2021-03-25 12:20:43,788 INFO L129 PetriNetUnfolder]: 442/1252 cut-off events. [2021-03-25 12:20:43,788 INFO L130 PetriNetUnfolder]: For 209414/209445 co-relation queries the response was YES. [2021-03-25 12:20:43,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23308 conditions, 1252 events. 442/1252 cut-off events. For 209414/209445 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10592 event pairs, 34 based on Foata normal form. 11/1263 useless extension candidates. Maximal degree in co-relation 23020. Up to 387 conditions per place. [2021-03-25 12:20:43,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 1018 [2021-03-25 12:20:43,877 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:43,877 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:43,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 490 [2021-03-25 12:20:43,878 INFO L480 AbstractCegarLoop]: Abstraction has has 632 places, 686 transitions, 22179 flow [2021-03-25 12:20:43,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:43,878 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:43,878 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:43,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2021-03-25 12:20:43,878 INFO L428 AbstractCegarLoop]: === Iteration 413 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:43,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:43,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1650338901, now seen corresponding path program 10 times [2021-03-25 12:20:43,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:43,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393582418] [2021-03-25 12:20:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:43,885 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:43,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:43,890 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:43,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:43,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:43,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:43,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:43,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:43,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:43,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:43,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:43,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:43,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:43,950 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:43,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:43,964 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:43,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:43,980 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:43,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:43,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393582418] [2021-03-25 12:20:43,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:43,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:43,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294447977] [2021-03-25 12:20:43,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:43,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:43,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:43,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:43,983 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:43,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 686 transitions, 22179 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:43,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:43,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:43,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:45,012 INFO L129 PetriNetUnfolder]: 457/1287 cut-off events. [2021-03-25 12:20:45,012 INFO L130 PetriNetUnfolder]: For 227444/227524 co-relation queries the response was YES. [2021-03-25 12:20:45,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25099 conditions, 1287 events. 457/1287 cut-off events. For 227444/227524 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10718 event pairs, 31 based on Foata normal form. 54/1341 useless extension candidates. Maximal degree in co-relation 24809. Up to 861 conditions per place. [2021-03-25 12:20:45,042 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 495 selfloop transitions, 192 changer transitions 7/702 dead transitions. [2021-03-25 12:20:45,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 702 transitions, 24532 flow [2021-03-25 12:20:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:20:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:20:45,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 361 transitions. [2021-03-25 12:20:45,044 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2505204718945177 [2021-03-25 12:20:45,044 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 361 transitions. [2021-03-25 12:20:45,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 361 transitions. [2021-03-25 12:20:45,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:45,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 361 transitions. [2021-03-25 12:20:45,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.81818181818182) internal successors, (361), 11 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:45,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:45,045 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:45,045 INFO L185 Difference]: Start difference. First operand has 632 places, 686 transitions, 22179 flow. Second operand 11 states and 361 transitions. [2021-03-25 12:20:45,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 702 transitions, 24532 flow [2021-03-25 12:20:46,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 702 transitions, 24155 flow, removed 104 selfloop flow, removed 11 redundant places. [2021-03-25 12:20:46,474 INFO L241 Difference]: Finished difference. Result has 636 places, 688 transitions, 22785 flow [2021-03-25 12:20:46,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21802, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22785, PETRI_PLACES=636, PETRI_TRANSITIONS=688} [2021-03-25 12:20:46,474 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 589 predicate places. [2021-03-25 12:20:46,475 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:46,475 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 636 places, 688 transitions, 22785 flow [2021-03-25 12:20:46,475 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 636 places, 688 transitions, 22785 flow [2021-03-25 12:20:46,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 634 places, 688 transitions, 22785 flow [2021-03-25 12:20:46,816 INFO L129 PetriNetUnfolder]: 439/1255 cut-off events. [2021-03-25 12:20:46,817 INFO L130 PetriNetUnfolder]: For 218210/218216 co-relation queries the response was YES. [2021-03-25 12:20:46,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23870 conditions, 1255 events. 439/1255 cut-off events. For 218210/218216 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10651 event pairs, 29 based on Foata normal form. 5/1259 useless extension candidates. Maximal degree in co-relation 23598. Up to 387 conditions per place. [2021-03-25 12:20:46,858 INFO L142 LiptonReduction]: Number of co-enabled transitions 1024 [2021-03-25 12:20:46,910 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:46,910 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:46,910 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 435 [2021-03-25 12:20:46,910 INFO L480 AbstractCegarLoop]: Abstraction has has 634 places, 688 transitions, 22785 flow [2021-03-25 12:20:46,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:46,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:46,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:46,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2021-03-25 12:20:46,910 INFO L428 AbstractCegarLoop]: === Iteration 414 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:46,911 INFO L82 PathProgramCache]: Analyzing trace with hash 655396634, now seen corresponding path program 34 times [2021-03-25 12:20:46,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:46,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808093469] [2021-03-25 12:20:46,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:46,928 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:46,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:46,934 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:46,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:46,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:46,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:46,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:46,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:46,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:46,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:46,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:46,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:46,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:46,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:46,989 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:20:46,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:47,004 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:20:47,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:20:47,019 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:47,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:47,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808093469] [2021-03-25 12:20:47,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:47,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:47,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264726710] [2021-03-25 12:20:47,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:47,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:47,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:47,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:47,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:47,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 688 transitions, 22785 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:47,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:47,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:47,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:48,048 INFO L129 PetriNetUnfolder]: 455/1273 cut-off events. [2021-03-25 12:20:48,048 INFO L130 PetriNetUnfolder]: For 230079/230159 co-relation queries the response was YES. [2021-03-25 12:20:48,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25207 conditions, 1273 events. 455/1273 cut-off events. For 230079/230159 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10479 event pairs, 46 based on Foata normal form. 32/1304 useless extension candidates. Maximal degree in co-relation 24927. Up to 990 conditions per place. [2021-03-25 12:20:48,076 INFO L132 encePairwiseOnDemand]: 116/131 looper letters, 619 selfloop transitions, 54 changer transitions 12/693 dead transitions. [2021-03-25 12:20:48,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 693 transitions, 24378 flow [2021-03-25 12:20:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:20:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:20:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 483 transitions. [2021-03-25 12:20:48,078 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23043893129770993 [2021-03-25 12:20:48,078 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 483 transitions. [2021-03-25 12:20:48,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 483 transitions. [2021-03-25 12:20:48,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:48,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 483 transitions. [2021-03-25 12:20:48,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 30.1875) internal successors, (483), 16 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:48,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 131.0) internal successors, (2227), 17 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:48,079 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 131.0) internal successors, (2227), 17 states have internal predecessors, (2227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:48,079 INFO L185 Difference]: Start difference. First operand has 634 places, 688 transitions, 22785 flow. Second operand 16 states and 483 transitions. [2021-03-25 12:20:48,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 693 transitions, 24378 flow [2021-03-25 12:20:49,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 639 places, 693 transitions, 23886 flow, removed 89 selfloop flow, removed 10 redundant places. [2021-03-25 12:20:49,593 INFO L241 Difference]: Finished difference. Result has 641 places, 677 transitions, 22112 flow [2021-03-25 12:20:49,594 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=22299, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22112, PETRI_PLACES=641, PETRI_TRANSITIONS=677} [2021-03-25 12:20:49,594 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 594 predicate places. [2021-03-25 12:20:49,594 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:49,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 641 places, 677 transitions, 22112 flow [2021-03-25 12:20:49,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 641 places, 677 transitions, 22112 flow [2021-03-25 12:20:49,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 637 places, 677 transitions, 22112 flow [2021-03-25 12:20:49,946 INFO L129 PetriNetUnfolder]: 435/1239 cut-off events. [2021-03-25 12:20:49,946 INFO L130 PetriNetUnfolder]: For 220784/220877 co-relation queries the response was YES. [2021-03-25 12:20:49,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23442 conditions, 1239 events. 435/1239 cut-off events. For 220784/220877 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10451 event pairs, 36 based on Foata normal form. 16/1255 useless extension candidates. Maximal degree in co-relation 23157. Up to 381 conditions per place. [2021-03-25 12:20:49,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 1024 [2021-03-25 12:20:50,044 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:50,044 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:50,044 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 450 [2021-03-25 12:20:50,044 INFO L480 AbstractCegarLoop]: Abstraction has has 637 places, 677 transitions, 22112 flow [2021-03-25 12:20:50,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:50,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:50,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:50,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2021-03-25 12:20:50,045 INFO L428 AbstractCegarLoop]: === Iteration 415 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:50,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:50,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1277349357, now seen corresponding path program 11 times [2021-03-25 12:20:50,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:50,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836742344] [2021-03-25 12:20:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:50,051 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:50,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:50,056 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:50,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:50,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:50,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:50,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:50,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:50,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:50,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:50,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:50,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:50,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:50,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:50,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:50,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:20:50,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:50,130 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:50,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:50,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:50,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836742344] [2021-03-25 12:20:50,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:50,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:50,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982146891] [2021-03-25 12:20:50,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:50,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:50,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:50,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:50,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:50,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 677 transitions, 22112 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:50,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:50,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:50,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:51,056 INFO L129 PetriNetUnfolder]: 453/1270 cut-off events. [2021-03-25 12:20:51,056 INFO L130 PetriNetUnfolder]: For 226589/226657 co-relation queries the response was YES. [2021-03-25 12:20:51,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24886 conditions, 1270 events. 453/1270 cut-off events. For 226589/226657 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10496 event pairs, 30 based on Foata normal form. 50/1320 useless extension candidates. Maximal degree in co-relation 24596. Up to 972 conditions per place. [2021-03-25 12:20:51,087 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 611 selfloop transitions, 60 changer transitions 6/685 dead transitions. [2021-03-25 12:20:51,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 685 transitions, 23765 flow [2021-03-25 12:20:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:20:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:20:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 373 transitions. [2021-03-25 12:20:51,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23727735368956743 [2021-03-25 12:20:51,088 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 373 transitions. [2021-03-25 12:20:51,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 373 transitions. [2021-03-25 12:20:51,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:51,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 373 transitions. [2021-03-25 12:20:51,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:51,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:51,090 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 131.0) internal successors, (1703), 13 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:51,090 INFO L185 Difference]: Start difference. First operand has 637 places, 677 transitions, 22112 flow. Second operand 12 states and 373 transitions. [2021-03-25 12:20:51,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 685 transitions, 23765 flow [2021-03-25 12:20:52,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 685 transitions, 23351 flow, removed 54 selfloop flow, removed 27 redundant places. [2021-03-25 12:20:52,460 INFO L241 Difference]: Finished difference. Result has 625 places, 675 transitions, 21765 flow [2021-03-25 12:20:52,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21698, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=21765, PETRI_PLACES=625, PETRI_TRANSITIONS=675} [2021-03-25 12:20:52,460 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 578 predicate places. [2021-03-25 12:20:52,460 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:52,461 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 625 places, 675 transitions, 21765 flow [2021-03-25 12:20:52,461 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 625 places, 675 transitions, 21765 flow [2021-03-25 12:20:52,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 619 places, 675 transitions, 21765 flow [2021-03-25 12:20:52,788 INFO L129 PetriNetUnfolder]: 436/1243 cut-off events. [2021-03-25 12:20:52,789 INFO L130 PetriNetUnfolder]: For 206767/206806 co-relation queries the response was YES. [2021-03-25 12:20:52,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23194 conditions, 1243 events. 436/1243 cut-off events. For 206767/206806 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10502 event pairs, 27 based on Foata normal form. 9/1252 useless extension candidates. Maximal degree in co-relation 22923. Up to 386 conditions per place. [2021-03-25 12:20:52,829 INFO L142 LiptonReduction]: Number of co-enabled transitions 1020 [2021-03-25 12:20:52,876 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:52,876 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:52,877 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 417 [2021-03-25 12:20:52,877 INFO L480 AbstractCegarLoop]: Abstraction has has 619 places, 675 transitions, 21765 flow [2021-03-25 12:20:52,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:52,877 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:52,877 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:52,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2021-03-25 12:20:52,877 INFO L428 AbstractCegarLoop]: === Iteration 416 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:52,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:52,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1723217419, now seen corresponding path program 12 times [2021-03-25 12:20:52,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:52,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665322428] [2021-03-25 12:20:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:52,883 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:52,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:52,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:52,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:52,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:52,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:52,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:52,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:52,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:52,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:52,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:52,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:52,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:52,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:52,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:52,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:52,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:20:52,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:52,962 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:52,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:52,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665322428] [2021-03-25 12:20:52,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:52,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:20:52,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300321237] [2021-03-25 12:20:52,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:20:52,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:52,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:20:52,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:20:52,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:52,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 675 transitions, 21765 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:52,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:52,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:52,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:53,870 INFO L129 PetriNetUnfolder]: 454/1267 cut-off events. [2021-03-25 12:20:53,871 INFO L130 PetriNetUnfolder]: For 219666/219746 co-relation queries the response was YES. [2021-03-25 12:20:53,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24688 conditions, 1267 events. 454/1267 cut-off events. For 219666/219746 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10420 event pairs, 44 based on Foata normal form. 42/1309 useless extension candidates. Maximal degree in co-relation 24414. Up to 923 conditions per place. [2021-03-25 12:20:53,902 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 532 selfloop transitions, 144 changer transitions 2/686 dead transitions. [2021-03-25 12:20:53,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 686 transitions, 23604 flow [2021-03-25 12:20:53,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:20:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:20:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 324 transitions. [2021-03-25 12:20:53,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24732824427480915 [2021-03-25 12:20:53,903 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 324 transitions. [2021-03-25 12:20:53,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 324 transitions. [2021-03-25 12:20:53,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:53,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 324 transitions. [2021-03-25 12:20:53,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.4) internal successors, (324), 10 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:53,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:53,904 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:53,904 INFO L185 Difference]: Start difference. First operand has 619 places, 675 transitions, 21765 flow. Second operand 10 states and 324 transitions. [2021-03-25 12:20:53,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 686 transitions, 23604 flow [2021-03-25 12:20:55,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 686 transitions, 23442 flow, removed 9 selfloop flow, removed 13 redundant places. [2021-03-25 12:20:55,345 INFO L241 Difference]: Finished difference. Result has 619 places, 680 transitions, 22298 flow [2021-03-25 12:20:55,345 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21605, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22298, PETRI_PLACES=619, PETRI_TRANSITIONS=680} [2021-03-25 12:20:55,345 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 572 predicate places. [2021-03-25 12:20:55,345 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:55,345 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 619 places, 680 transitions, 22298 flow [2021-03-25 12:20:55,345 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 619 places, 680 transitions, 22298 flow [2021-03-25 12:20:55,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 618 places, 680 transitions, 22298 flow [2021-03-25 12:20:55,705 INFO L129 PetriNetUnfolder]: 436/1230 cut-off events. [2021-03-25 12:20:55,706 INFO L130 PetriNetUnfolder]: For 219793/219809 co-relation queries the response was YES. [2021-03-25 12:20:55,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23528 conditions, 1230 events. 436/1230 cut-off events. For 219793/219809 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10324 event pairs, 32 based on Foata normal form. 8/1237 useless extension candidates. Maximal degree in co-relation 23231. Up to 382 conditions per place. [2021-03-25 12:20:55,749 INFO L142 LiptonReduction]: Number of co-enabled transitions 1030 [2021-03-25 12:20:55,799 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:55,800 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:55,800 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 455 [2021-03-25 12:20:55,800 INFO L480 AbstractCegarLoop]: Abstraction has has 618 places, 680 transitions, 22298 flow [2021-03-25 12:20:55,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:55,800 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:55,800 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:55,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2021-03-25 12:20:55,800 INFO L428 AbstractCegarLoop]: === Iteration 417 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:55,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:55,800 INFO L82 PathProgramCache]: Analyzing trace with hash -196541809, now seen corresponding path program 13 times [2021-03-25 12:20:55,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:55,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758894014] [2021-03-25 12:20:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:55,806 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:55,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:55,811 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:55,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:55,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:55,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:55,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:55,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:55,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:55,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:55,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:55,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:55,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:55,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:55,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:55,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:55,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:20:55,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:55,875 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:55,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:55,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:55,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758894014] [2021-03-25 12:20:55,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:55,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:20:55,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814411038] [2021-03-25 12:20:55,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:20:55,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:55,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:20:55,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:20:55,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:55,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 680 transitions, 22298 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:55,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:55,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:55,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:56,680 INFO L129 PetriNetUnfolder]: 454/1271 cut-off events. [2021-03-25 12:20:56,681 INFO L130 PetriNetUnfolder]: For 223546/223626 co-relation queries the response was YES. [2021-03-25 12:20:56,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24932 conditions, 1271 events. 454/1271 cut-off events. For 223546/223626 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10493 event pairs, 45 based on Foata normal form. 42/1313 useless extension candidates. Maximal degree in co-relation 24643. Up to 992 conditions per place. [2021-03-25 12:20:56,711 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 627 selfloop transitions, 49 changer transitions 2/686 dead transitions. [2021-03-25 12:20:56,712 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 686 transitions, 23875 flow [2021-03-25 12:20:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:20:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:20:56,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 286 transitions. [2021-03-25 12:20:56,713 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24257845631891434 [2021-03-25 12:20:56,713 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 286 transitions. [2021-03-25 12:20:56,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 286 transitions. [2021-03-25 12:20:56,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:56,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 286 transitions. [2021-03-25 12:20:56,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.77777777777778) internal successors, (286), 9 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:56,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:56,714 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:56,714 INFO L185 Difference]: Start difference. First operand has 618 places, 680 transitions, 22298 flow. Second operand 9 states and 286 transitions. [2021-03-25 12:20:56,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 686 transitions, 23875 flow [2021-03-25 12:20:58,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 686 transitions, 23404 flow, removed 101 selfloop flow, removed 7 redundant places. [2021-03-25 12:20:58,169 INFO L241 Difference]: Finished difference. Result has 623 places, 682 transitions, 22036 flow [2021-03-25 12:20:58,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21837, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22036, PETRI_PLACES=623, PETRI_TRANSITIONS=682} [2021-03-25 12:20:58,169 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 576 predicate places. [2021-03-25 12:20:58,169 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:20:58,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 623 places, 682 transitions, 22036 flow [2021-03-25 12:20:58,169 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 623 places, 682 transitions, 22036 flow [2021-03-25 12:20:58,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 622 places, 682 transitions, 22036 flow [2021-03-25 12:20:58,507 INFO L129 PetriNetUnfolder]: 436/1238 cut-off events. [2021-03-25 12:20:58,507 INFO L130 PetriNetUnfolder]: For 216479/216498 co-relation queries the response was YES. [2021-03-25 12:20:58,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23397 conditions, 1238 events. 436/1238 cut-off events. For 216479/216498 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10475 event pairs, 35 based on Foata normal form. 14/1252 useless extension candidates. Maximal degree in co-relation 23097. Up to 381 conditions per place. [2021-03-25 12:20:58,549 INFO L142 LiptonReduction]: Number of co-enabled transitions 1032 [2021-03-25 12:20:58,599 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:20:58,599 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:20:58,599 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 430 [2021-03-25 12:20:58,600 INFO L480 AbstractCegarLoop]: Abstraction has has 622 places, 682 transitions, 22036 flow [2021-03-25 12:20:58,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:58,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:20:58,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:20:58,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2021-03-25 12:20:58,600 INFO L428 AbstractCegarLoop]: === Iteration 418 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:20:58,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:20:58,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1187987617, now seen corresponding path program 14 times [2021-03-25 12:20:58,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:20:58,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776482920] [2021-03-25 12:20:58,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:20:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:20:58,620 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:20:58,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:20:58,625 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:20:58,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:20:58,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:58,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:58,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:58,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:58,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:20:58,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:58,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:58,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:58,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:20:58,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:20:58,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:58,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:20:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:20:58,708 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:20:58,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:20:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:20:58,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776482920] [2021-03-25 12:20:58,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:20:58,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:20:58,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176811383] [2021-03-25 12:20:58,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:20:58,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:20:58,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:20:58,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:20:58,711 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:20:58,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 682 transitions, 22036 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:58,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:20:58,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:20:58,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:20:59,704 INFO L129 PetriNetUnfolder]: 454/1273 cut-off events. [2021-03-25 12:20:59,704 INFO L130 PetriNetUnfolder]: For 221538/221618 co-relation queries the response was YES. [2021-03-25 12:20:59,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24826 conditions, 1273 events. 454/1273 cut-off events. For 221538/221618 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10551 event pairs, 31 based on Foata normal form. 53/1326 useless extension candidates. Maximal degree in co-relation 24534. Up to 850 conditions per place. [2021-03-25 12:20:59,736 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 483 selfloop transitions, 199 changer transitions 2/692 dead transitions. [2021-03-25 12:20:59,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 692 transitions, 23819 flow [2021-03-25 12:20:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:20:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:20:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 359 transitions. [2021-03-25 12:20:59,738 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24913254684247052 [2021-03-25 12:20:59,738 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 359 transitions. [2021-03-25 12:20:59,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 359 transitions. [2021-03-25 12:20:59,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:20:59,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 359 transitions. [2021-03-25 12:20:59,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.63636363636363) internal successors, (359), 11 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:59,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:59,739 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:20:59,739 INFO L185 Difference]: Start difference. First operand has 622 places, 682 transitions, 22036 flow. Second operand 11 states and 359 transitions. [2021-03-25 12:20:59,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 692 transitions, 23819 flow [2021-03-25 12:21:01,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 692 transitions, 23654 flow, removed 20 selfloop flow, removed 7 redundant places. [2021-03-25 12:21:01,154 INFO L241 Difference]: Finished difference. Result has 628 places, 685 transitions, 22593 flow [2021-03-25 12:21:01,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21873, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22593, PETRI_PLACES=628, PETRI_TRANSITIONS=685} [2021-03-25 12:21:01,155 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 581 predicate places. [2021-03-25 12:21:01,155 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:01,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 628 places, 685 transitions, 22593 flow [2021-03-25 12:21:01,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 628 places, 685 transitions, 22593 flow [2021-03-25 12:21:01,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 627 places, 685 transitions, 22593 flow [2021-03-25 12:21:01,489 INFO L129 PetriNetUnfolder]: 439/1260 cut-off events. [2021-03-25 12:21:01,489 INFO L130 PetriNetUnfolder]: For 212132/212136 co-relation queries the response was YES. [2021-03-25 12:21:01,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23901 conditions, 1260 events. 439/1260 cut-off events. For 212132/212136 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10742 event pairs, 33 based on Foata normal form. 3/1263 useless extension candidates. Maximal degree in co-relation 23600. Up to 387 conditions per place. [2021-03-25 12:21:01,529 INFO L142 LiptonReduction]: Number of co-enabled transitions 1038 [2021-03-25 12:21:01,579 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:01,580 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:01,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 425 [2021-03-25 12:21:01,580 INFO L480 AbstractCegarLoop]: Abstraction has has 627 places, 685 transitions, 22593 flow [2021-03-25 12:21:01,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:01,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:01,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:01,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2021-03-25 12:21:01,580 INFO L428 AbstractCegarLoop]: === Iteration 419 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:01,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1653799687, now seen corresponding path program 15 times [2021-03-25 12:21:01,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:01,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573283336] [2021-03-25 12:21:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:01,586 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:01,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:01,591 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:01,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:01,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:01,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:01,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:01,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:01,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:01,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:01,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:01,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:01,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:01,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:01,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:01,658 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:01,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:01,664 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:01,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:01,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573283336] [2021-03-25 12:21:01,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:01,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:01,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305472850] [2021-03-25 12:21:01,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:01,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:01,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:01,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:01,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:21:01,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 685 transitions, 22593 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:01,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:01,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:21:01,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:02,529 INFO L129 PetriNetUnfolder]: 454/1276 cut-off events. [2021-03-25 12:21:02,529 INFO L130 PetriNetUnfolder]: For 222130/222293 co-relation queries the response was YES. [2021-03-25 12:21:02,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25136 conditions, 1276 events. 454/1276 cut-off events. For 222130/222293 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10563 event pairs, 46 based on Foata normal form. 46/1322 useless extension candidates. Maximal degree in co-relation 24843. Up to 940 conditions per place. [2021-03-25 12:21:02,558 INFO L132 encePairwiseOnDemand]: 115/131 looper letters, 547 selfloop transitions, 134 changer transitions 2/691 dead transitions. [2021-03-25 12:21:02,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 691 transitions, 24173 flow [2021-03-25 12:21:02,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:21:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:21:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2021-03-25 12:21:02,560 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24427480916030533 [2021-03-25 12:21:02,560 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 320 transitions. [2021-03-25 12:21:02,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 320 transitions. [2021-03-25 12:21:02,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:02,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 320 transitions. [2021-03-25 12:21:02,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.0) internal successors, (320), 10 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:02,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:02,561 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 131.0) internal successors, (1441), 11 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:02,561 INFO L185 Difference]: Start difference. First operand has 627 places, 685 transitions, 22593 flow. Second operand 10 states and 320 transitions. [2021-03-25 12:21:02,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 691 transitions, 24173 flow [2021-03-25 12:21:03,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 691 transitions, 23555 flow, removed 87 selfloop flow, removed 10 redundant places. [2021-03-25 12:21:03,932 INFO L241 Difference]: Finished difference. Result has 630 places, 687 transitions, 22427 flow [2021-03-25 12:21:03,932 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=21981, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22427, PETRI_PLACES=630, PETRI_TRANSITIONS=687} [2021-03-25 12:21:03,932 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 583 predicate places. [2021-03-25 12:21:03,932 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:03,933 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 630 places, 687 transitions, 22427 flow [2021-03-25 12:21:03,933 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 630 places, 687 transitions, 22427 flow [2021-03-25 12:21:03,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 629 places, 687 transitions, 22427 flow [2021-03-25 12:21:04,300 INFO L129 PetriNetUnfolder]: 438/1261 cut-off events. [2021-03-25 12:21:04,300 INFO L130 PetriNetUnfolder]: For 210840/210917 co-relation queries the response was YES. [2021-03-25 12:21:04,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23597 conditions, 1261 events. 438/1261 cut-off events. For 210840/210917 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10759 event pairs, 31 based on Foata normal form. 15/1276 useless extension candidates. Maximal degree in co-relation 23295. Up to 383 conditions per place. [2021-03-25 12:21:04,338 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:04,383 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:04,383 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:04,383 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 451 [2021-03-25 12:21:04,383 INFO L480 AbstractCegarLoop]: Abstraction has has 629 places, 687 transitions, 22427 flow [2021-03-25 12:21:04,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:04,384 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:04,384 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:04,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2021-03-25 12:21:04,384 INFO L428 AbstractCegarLoop]: === Iteration 420 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:04,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:04,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1174336949, now seen corresponding path program 16 times [2021-03-25 12:21:04,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:04,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387352525] [2021-03-25 12:21:04,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:04,390 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:04,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:04,395 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:04,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:04,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:04,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:04,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:04,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:04,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:04,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:04,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:04,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:04,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:04,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:04,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:04,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:04,460 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:21:04,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:04,465 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:04,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:04,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387352525] [2021-03-25 12:21:04,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:04,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:04,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306548422] [2021-03-25 12:21:04,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:04,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:04,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:04,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:04,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2021-03-25 12:21:04,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 687 transitions, 22427 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:04,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:04,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2021-03-25 12:21:04,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:05,305 INFO L129 PetriNetUnfolder]: 455/1287 cut-off events. [2021-03-25 12:21:05,305 INFO L130 PetriNetUnfolder]: For 214731/214792 co-relation queries the response was YES. [2021-03-25 12:21:05,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25052 conditions, 1287 events. 455/1287 cut-off events. For 214731/214792 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10686 event pairs, 45 based on Foata normal form. 32/1319 useless extension candidates. Maximal degree in co-relation 24758. Up to 965 conditions per place. [2021-03-25 12:21:05,337 INFO L132 encePairwiseOnDemand]: 117/131 looper letters, 578 selfloop transitions, 108 changer transitions 2/696 dead transitions. [2021-03-25 12:21:05,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 696 transitions, 24267 flow [2021-03-25 12:21:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:21:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:21:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 12:21:05,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24766751484308736 [2021-03-25 12:21:05,338 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 12:21:05,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 12:21:05,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:05,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 12:21:05,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:05,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:05,339 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:05,339 INFO L185 Difference]: Start difference. First operand has 629 places, 687 transitions, 22427 flow. Second operand 9 states and 292 transitions. [2021-03-25 12:21:05,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 696 transitions, 24267 flow [2021-03-25 12:21:06,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 696 transitions, 23859 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-03-25 12:21:06,707 INFO L241 Difference]: Finished difference. Result has 632 places, 692 transitions, 22610 flow [2021-03-25 12:21:06,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=22021, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22610, PETRI_PLACES=632, PETRI_TRANSITIONS=692} [2021-03-25 12:21:06,707 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 585 predicate places. [2021-03-25 12:21:06,707 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:06,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 632 places, 692 transitions, 22610 flow [2021-03-25 12:21:06,707 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 632 places, 692 transitions, 22610 flow [2021-03-25 12:21:06,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 632 places, 692 transitions, 22610 flow [2021-03-25 12:21:07,065 INFO L129 PetriNetUnfolder]: 439/1264 cut-off events. [2021-03-25 12:21:07,065 INFO L130 PetriNetUnfolder]: For 216405/216431 co-relation queries the response was YES. [2021-03-25 12:21:07,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23770 conditions, 1264 events. 439/1264 cut-off events. For 216405/216431 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10817 event pairs, 36 based on Foata normal form. 3/1264 useless extension candidates. Maximal degree in co-relation 23466. Up to 388 conditions per place. [2021-03-25 12:21:07,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:07,255 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:07,255 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:21:07,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 548 [2021-03-25 12:21:07,255 INFO L480 AbstractCegarLoop]: Abstraction has has 632 places, 692 transitions, 22723 flow [2021-03-25 12:21:07,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:07,255 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:07,256 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:07,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2021-03-25 12:21:07,256 INFO L428 AbstractCegarLoop]: === Iteration 421 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:07,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1053551253, now seen corresponding path program 17 times [2021-03-25 12:21:07,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:07,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973134245] [2021-03-25 12:21:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:07,263 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:07,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:07,268 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:07,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:07,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:07,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:07,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:07,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:07,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:07,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:07,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:07,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:07,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:07,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:07,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:07,347 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:21:07,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:07,353 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:07,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:07,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973134245] [2021-03-25 12:21:07,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:07,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:07,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005788074] [2021-03-25 12:21:07,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:07,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:07,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:07,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:07,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:07,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 692 transitions, 22723 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:07,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:07,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:07,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:08,313 INFO L129 PetriNetUnfolder]: 455/1282 cut-off events. [2021-03-25 12:21:08,313 INFO L130 PetriNetUnfolder]: For 224571/224658 co-relation queries the response was YES. [2021-03-25 12:21:08,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25218 conditions, 1282 events. 455/1282 cut-off events. For 224571/224658 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 10659 event pairs, 45 based on Foata normal form. 39/1320 useless extension candidates. Maximal degree in co-relation 24922. Up to 961 conditions per place. [2021-03-25 12:21:08,342 INFO L132 encePairwiseOnDemand]: 117/132 looper letters, 571 selfloop transitions, 117 changer transitions 2/698 dead transitions. [2021-03-25 12:21:08,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 641 places, 698 transitions, 24411 flow [2021-03-25 12:21:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:21:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:21:08,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:21:08,344 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2431818181818182 [2021-03-25 12:21:08,344 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:21:08,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:21:08,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:08,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:21:08,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:08,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:08,345 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:08,345 INFO L185 Difference]: Start difference. First operand has 632 places, 692 transitions, 22723 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:21:08,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 641 places, 698 transitions, 24411 flow [2021-03-25 12:21:09,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 698 transitions, 23804 flow, removed 163 selfloop flow, removed 7 redundant places. [2021-03-25 12:21:09,762 INFO L241 Difference]: Finished difference. Result has 638 places, 694 transitions, 22571 flow [2021-03-25 12:21:09,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22120, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=692, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22571, PETRI_PLACES=638, PETRI_TRANSITIONS=694} [2021-03-25 12:21:09,763 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 591 predicate places. [2021-03-25 12:21:09,763 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:09,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 638 places, 694 transitions, 22571 flow [2021-03-25 12:21:09,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 638 places, 694 transitions, 22571 flow [2021-03-25 12:21:09,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 638 places, 694 transitions, 22571 flow [2021-03-25 12:21:10,096 INFO L129 PetriNetUnfolder]: 437/1260 cut-off events. [2021-03-25 12:21:10,096 INFO L130 PetriNetUnfolder]: For 217452/217552 co-relation queries the response was YES. [2021-03-25 12:21:10,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23521 conditions, 1260 events. 437/1260 cut-off events. For 217452/217552 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 10814 event pairs, 40 based on Foata normal form. 12/1269 useless extension candidates. Maximal degree in co-relation 23215. Up to 381 conditions per place. [2021-03-25 12:21:10,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:10,191 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:10,192 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:10,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 429 [2021-03-25 12:21:10,192 INFO L480 AbstractCegarLoop]: Abstraction has has 638 places, 694 transitions, 22571 flow [2021-03-25 12:21:10,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:10,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:10,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:10,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2021-03-25 12:21:10,192 INFO L428 AbstractCegarLoop]: === Iteration 422 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:10,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:10,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1190639683, now seen corresponding path program 1 times [2021-03-25 12:21:10,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:10,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47650446] [2021-03-25 12:21:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:10,199 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:10,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:10,204 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:10,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:10,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:10,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:10,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:10,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:10,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:10,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:10,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:10,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:21:10,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:10,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:21:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:10,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:21:10,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:21:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:10,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47650446] [2021-03-25 12:21:10,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:10,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:10,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343093786] [2021-03-25 12:21:10,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:10,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:10,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:10,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:10,277 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:10,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 694 transitions, 22571 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:10,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:10,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:10,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:11,131 INFO L129 PetriNetUnfolder]: 454/1279 cut-off events. [2021-03-25 12:21:11,131 INFO L130 PetriNetUnfolder]: For 217744/217824 co-relation queries the response was YES. [2021-03-25 12:21:11,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25090 conditions, 1279 events. 454/1279 cut-off events. For 217744/217824 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10598 event pairs, 39 based on Foata normal form. 42/1321 useless extension candidates. Maximal degree in co-relation 24792. Up to 923 conditions per place. [2021-03-25 12:21:11,163 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 532 selfloop transitions, 154 changer transitions 4/698 dead transitions. [2021-03-25 12:21:11,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 698 transitions, 24213 flow [2021-03-25 12:21:11,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:21:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:21:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 297 transitions. [2021-03-25 12:21:11,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25 [2021-03-25 12:21:11,164 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 297 transitions. [2021-03-25 12:21:11,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 297 transitions. [2021-03-25 12:21:11,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:11,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 297 transitions. [2021-03-25 12:21:11,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:11,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:11,165 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:11,165 INFO L185 Difference]: Start difference. First operand has 638 places, 694 transitions, 22571 flow. Second operand 9 states and 297 transitions. [2021-03-25 12:21:11,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 698 transitions, 24213 flow [2021-03-25 12:21:12,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 698 transitions, 23855 flow, removed 38 selfloop flow, removed 8 redundant places. [2021-03-25 12:21:12,649 INFO L241 Difference]: Finished difference. Result has 640 places, 691 transitions, 22597 flow [2021-03-25 12:21:12,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22213, PETRI_DIFFERENCE_MINUEND_PLACES=630, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22597, PETRI_PLACES=640, PETRI_TRANSITIONS=691} [2021-03-25 12:21:12,649 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 593 predicate places. [2021-03-25 12:21:12,649 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:12,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 640 places, 691 transitions, 22597 flow [2021-03-25 12:21:12,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 640 places, 691 transitions, 22597 flow [2021-03-25 12:21:12,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 638 places, 691 transitions, 22597 flow [2021-03-25 12:21:12,980 INFO L129 PetriNetUnfolder]: 437/1264 cut-off events. [2021-03-25 12:21:12,980 INFO L130 PetriNetUnfolder]: For 216320/216341 co-relation queries the response was YES. [2021-03-25 12:21:13,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23846 conditions, 1264 events. 437/1264 cut-off events. For 216320/216341 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10791 event pairs, 29 based on Foata normal form. 6/1267 useless extension candidates. Maximal degree in co-relation 23568. Up to 385 conditions per place. [2021-03-25 12:21:13,022 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:13,073 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:13,073 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:13,073 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 424 [2021-03-25 12:21:13,073 INFO L480 AbstractCegarLoop]: Abstraction has has 638 places, 691 transitions, 22597 flow [2021-03-25 12:21:13,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:13,074 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:13,074 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:13,074 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2021-03-25 12:21:13,074 INFO L428 AbstractCegarLoop]: === Iteration 423 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:13,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:13,074 INFO L82 PathProgramCache]: Analyzing trace with hash 910833819, now seen corresponding path program 18 times [2021-03-25 12:21:13,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:13,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340796068] [2021-03-25 12:21:13,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:13,079 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:13,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:13,084 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:13,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:13,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:13,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:13,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:13,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:13,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:13,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:13,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:13,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:13,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:13,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:13,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:13,152 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:13,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:13,167 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:13,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:13,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:13,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340796068] [2021-03-25 12:21:13,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:13,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:13,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672149531] [2021-03-25 12:21:13,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:13,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:13,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:13,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:13,171 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:13,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 691 transitions, 22597 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:13,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:13,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:13,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:14,133 INFO L129 PetriNetUnfolder]: 453/1279 cut-off events. [2021-03-25 12:21:14,133 INFO L130 PetriNetUnfolder]: For 219223/219303 co-relation queries the response was YES. [2021-03-25 12:21:14,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25174 conditions, 1279 events. 453/1279 cut-off events. For 219223/219303 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10614 event pairs, 29 based on Foata normal form. 64/1343 useless extension candidates. Maximal degree in co-relation 24894. Up to 947 conditions per place. [2021-03-25 12:21:14,164 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 586 selfloop transitions, 96 changer transitions 7/697 dead transitions. [2021-03-25 12:21:14,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 697 transitions, 24226 flow [2021-03-25 12:21:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:21:14,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:21:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 406 transitions. [2021-03-25 12:21:14,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2365967365967366 [2021-03-25 12:21:14,165 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 406 transitions. [2021-03-25 12:21:14,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 406 transitions. [2021-03-25 12:21:14,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:14,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 406 transitions. [2021-03-25 12:21:14,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.23076923076923) internal successors, (406), 13 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:14,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:14,166 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:14,166 INFO L185 Difference]: Start difference. First operand has 638 places, 691 transitions, 22597 flow. Second operand 13 states and 406 transitions. [2021-03-25 12:21:14,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 697 transitions, 24226 flow [2021-03-25 12:21:15,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 639 places, 697 transitions, 23755 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 12:21:15,687 INFO L241 Difference]: Finished difference. Result has 642 places, 687 transitions, 22226 flow [2021-03-25 12:21:15,687 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22128, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=22226, PETRI_PLACES=642, PETRI_TRANSITIONS=687} [2021-03-25 12:21:15,687 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 595 predicate places. [2021-03-25 12:21:15,687 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:15,687 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 642 places, 687 transitions, 22226 flow [2021-03-25 12:21:15,687 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 642 places, 687 transitions, 22226 flow [2021-03-25 12:21:15,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 636 places, 687 transitions, 22226 flow [2021-03-25 12:21:16,068 INFO L129 PetriNetUnfolder]: 434/1247 cut-off events. [2021-03-25 12:21:16,068 INFO L130 PetriNetUnfolder]: For 219792/219891 co-relation queries the response was YES. [2021-03-25 12:21:16,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23334 conditions, 1247 events. 434/1247 cut-off events. For 219792/219891 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10609 event pairs, 33 based on Foata normal form. 14/1258 useless extension candidates. Maximal degree in co-relation 23055. Up to 379 conditions per place. [2021-03-25 12:21:16,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 1032 [2021-03-25 12:21:16,159 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:16,160 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:16,160 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 473 [2021-03-25 12:21:16,160 INFO L480 AbstractCegarLoop]: Abstraction has has 636 places, 687 transitions, 22226 flow [2021-03-25 12:21:16,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:16,160 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:16,160 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:16,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2021-03-25 12:21:16,160 INFO L428 AbstractCegarLoop]: === Iteration 424 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:16,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:16,161 INFO L82 PathProgramCache]: Analyzing trace with hash -965346899, now seen corresponding path program 19 times [2021-03-25 12:21:16,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:16,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143342982] [2021-03-25 12:21:16,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:16,168 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:16,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:16,174 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:16,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:16,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:16,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:16,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:16,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:16,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:16,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:16,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:16,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:16,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:16,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:16,240 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:21:16,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:16,247 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:16,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:16,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:16,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143342982] [2021-03-25 12:21:16,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:16,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:21:16,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121559482] [2021-03-25 12:21:16,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:21:16,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:16,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:21:16,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:21:16,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:16,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 636 places, 687 transitions, 22226 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:16,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:16,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:16,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:17,093 INFO L129 PetriNetUnfolder]: 452/1273 cut-off events. [2021-03-25 12:21:17,093 INFO L130 PetriNetUnfolder]: For 220367/220447 co-relation queries the response was YES. [2021-03-25 12:21:17,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24984 conditions, 1273 events. 452/1273 cut-off events. For 220367/220447 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10540 event pairs, 46 based on Foata normal form. 32/1304 useless extension candidates. Maximal degree in co-relation 24702. Up to 957 conditions per place. [2021-03-25 12:21:17,126 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 571 selfloop transitions, 111 changer transitions 2/692 dead transitions. [2021-03-25 12:21:17,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 692 transitions, 23887 flow [2021-03-25 12:21:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:21:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:21:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 294 transitions. [2021-03-25 12:21:17,128 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2474747474747475 [2021-03-25 12:21:17,128 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 294 transitions. [2021-03-25 12:21:17,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 294 transitions. [2021-03-25 12:21:17,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:17,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 294 transitions. [2021-03-25 12:21:17,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 9 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:17,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:17,129 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:17,129 INFO L185 Difference]: Start difference. First operand has 636 places, 687 transitions, 22226 flow. Second operand 9 states and 294 transitions. [2021-03-25 12:21:17,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 692 transitions, 23887 flow [2021-03-25 12:21:18,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 692 transitions, 23687 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-25 12:21:18,722 INFO L241 Difference]: Finished difference. Result has 637 places, 688 transitions, 22429 flow [2021-03-25 12:21:18,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22028, PETRI_DIFFERENCE_MINUEND_PLACES=626, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22429, PETRI_PLACES=637, PETRI_TRANSITIONS=688} [2021-03-25 12:21:18,722 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 590 predicate places. [2021-03-25 12:21:18,722 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:18,722 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 637 places, 688 transitions, 22429 flow [2021-03-25 12:21:18,723 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 637 places, 688 transitions, 22429 flow [2021-03-25 12:21:18,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 637 places, 688 transitions, 22429 flow [2021-03-25 12:21:19,087 INFO L129 PetriNetUnfolder]: 435/1258 cut-off events. [2021-03-25 12:21:19,088 INFO L130 PetriNetUnfolder]: For 219001/219017 co-relation queries the response was YES. [2021-03-25 12:21:19,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23741 conditions, 1258 events. 435/1258 cut-off events. For 219001/219017 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10707 event pairs, 35 based on Foata normal form. 3/1258 useless extension candidates. Maximal degree in co-relation 23434. Up to 386 conditions per place. [2021-03-25 12:21:19,131 INFO L142 LiptonReduction]: Number of co-enabled transitions 1032 [2021-03-25 12:21:19,184 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:19,184 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:19,185 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 463 [2021-03-25 12:21:19,185 INFO L480 AbstractCegarLoop]: Abstraction has has 637 places, 688 transitions, 22429 flow [2021-03-25 12:21:19,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:19,185 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:19,185 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:19,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2021-03-25 12:21:19,185 INFO L428 AbstractCegarLoop]: === Iteration 425 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:19,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:19,185 INFO L82 PathProgramCache]: Analyzing trace with hash 530328155, now seen corresponding path program 20 times [2021-03-25 12:21:19,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:19,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776709127] [2021-03-25 12:21:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:19,191 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:19,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:19,196 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:19,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:19,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:19,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:19,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:19,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:19,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:19,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:19,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:19,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:19,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:19,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:19,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:19,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:19,269 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:21:19,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:19,275 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:19,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:19,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776709127] [2021-03-25 12:21:19,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:19,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:19,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495495756] [2021-03-25 12:21:19,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:19,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:19,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:19,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:19,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:19,279 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 688 transitions, 22429 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:19,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:19,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:19,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:20,216 INFO L129 PetriNetUnfolder]: 456/1283 cut-off events. [2021-03-25 12:21:20,217 INFO L130 PetriNetUnfolder]: For 222431/222511 co-relation queries the response was YES. [2021-03-25 12:21:20,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25333 conditions, 1283 events. 456/1283 cut-off events. For 222431/222511 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10659 event pairs, 46 based on Foata normal form. 32/1314 useless extension candidates. Maximal degree in co-relation 25034. Up to 954 conditions per place. [2021-03-25 12:21:20,245 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 565 selfloop transitions, 124 changer transitions 5/702 dead transitions. [2021-03-25 12:21:20,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 702 transitions, 24597 flow [2021-03-25 12:21:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:21:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:21:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 377 transitions. [2021-03-25 12:21:20,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2380050505050505 [2021-03-25 12:21:20,247 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 377 transitions. [2021-03-25 12:21:20,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 377 transitions. [2021-03-25 12:21:20,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:20,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 377 transitions. [2021-03-25 12:21:20,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 12 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:20,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:20,248 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:20,248 INFO L185 Difference]: Start difference. First operand has 637 places, 688 transitions, 22429 flow. Second operand 12 states and 377 transitions. [2021-03-25 12:21:20,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 702 transitions, 24597 flow [2021-03-25 12:21:21,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 639 places, 702 transitions, 24250 flow, removed 32 selfloop flow, removed 9 redundant places. [2021-03-25 12:21:21,663 INFO L241 Difference]: Finished difference. Result has 644 places, 695 transitions, 22816 flow [2021-03-25 12:21:21,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22086, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=22816, PETRI_PLACES=644, PETRI_TRANSITIONS=695} [2021-03-25 12:21:21,663 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 597 predicate places. [2021-03-25 12:21:21,663 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:21,663 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 644 places, 695 transitions, 22816 flow [2021-03-25 12:21:21,664 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 644 places, 695 transitions, 22816 flow [2021-03-25 12:21:21,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 644 places, 695 transitions, 22816 flow [2021-03-25 12:21:21,998 INFO L129 PetriNetUnfolder]: 437/1253 cut-off events. [2021-03-25 12:21:21,998 INFO L130 PetriNetUnfolder]: For 221106/221194 co-relation queries the response was YES. [2021-03-25 12:21:22,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23713 conditions, 1253 events. 437/1253 cut-off events. For 221106/221194 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10660 event pairs, 31 based on Foata normal form. 12/1264 useless extension candidates. Maximal degree in co-relation 23403. Up to 382 conditions per place. [2021-03-25 12:21:22,036 INFO L142 LiptonReduction]: Number of co-enabled transitions 1032 [2021-03-25 12:21:22,088 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:22,088 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:22,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 425 [2021-03-25 12:21:22,088 INFO L480 AbstractCegarLoop]: Abstraction has has 644 places, 695 transitions, 22816 flow [2021-03-25 12:21:22,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:22,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:22,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:22,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2021-03-25 12:21:22,088 INFO L428 AbstractCegarLoop]: === Iteration 426 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:22,088 INFO L82 PathProgramCache]: Analyzing trace with hash -455451421, now seen corresponding path program 21 times [2021-03-25 12:21:22,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:22,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694714877] [2021-03-25 12:21:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:22,095 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:22,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:22,100 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:22,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:22,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:22,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:22,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:22,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:22,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:22,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:22,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:22,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:22,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:22,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:22,171 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:21:22,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:22,186 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:21:22,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:21:22,201 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:22,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:22,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694714877] [2021-03-25 12:21:22,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:22,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:21:22,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129517233] [2021-03-25 12:21:22,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:21:22,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:22,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:21:22,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:21:22,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:22,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 695 transitions, 22816 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:22,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:22,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:22,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:23,280 INFO L129 PetriNetUnfolder]: 455/1284 cut-off events. [2021-03-25 12:21:23,281 INFO L130 PetriNetUnfolder]: For 226495/226575 co-relation queries the response was YES. [2021-03-25 12:21:23,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25535 conditions, 1284 events. 455/1284 cut-off events. For 226495/226575 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 10663 event pairs, 31 based on Foata normal form. 53/1337 useless extension candidates. Maximal degree in co-relation 25233. Up to 820 conditions per place. [2021-03-25 12:21:23,312 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 461 selfloop transitions, 235 changer transitions 2/706 dead transitions. [2021-03-25 12:21:23,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 706 transitions, 25076 flow [2021-03-25 12:21:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:21:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:21:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 390 transitions. [2021-03-25 12:21:23,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24621212121212122 [2021-03-25 12:21:23,313 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 390 transitions. [2021-03-25 12:21:23,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 390 transitions. [2021-03-25 12:21:23,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:23,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 390 transitions. [2021-03-25 12:21:23,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 32.5) internal successors, (390), 12 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:23,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:23,314 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:23,314 INFO L185 Difference]: Start difference. First operand has 644 places, 695 transitions, 22816 flow. Second operand 12 states and 390 transitions. [2021-03-25 12:21:23,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 706 transitions, 25076 flow [2021-03-25 12:21:24,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 706 transitions, 24470 flow, removed 160 selfloop flow, removed 10 redundant places. [2021-03-25 12:21:24,915 INFO L241 Difference]: Finished difference. Result has 648 places, 698 transitions, 23156 flow [2021-03-25 12:21:24,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22210, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=23156, PETRI_PLACES=648, PETRI_TRANSITIONS=698} [2021-03-25 12:21:24,915 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 601 predicate places. [2021-03-25 12:21:24,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:24,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 648 places, 698 transitions, 23156 flow [2021-03-25 12:21:24,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 648 places, 698 transitions, 23156 flow [2021-03-25 12:21:24,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 647 places, 698 transitions, 23156 flow [2021-03-25 12:21:25,256 INFO L129 PetriNetUnfolder]: 435/1241 cut-off events. [2021-03-25 12:21:25,256 INFO L130 PetriNetUnfolder]: For 232153/232246 co-relation queries the response was YES. [2021-03-25 12:21:25,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24009 conditions, 1241 events. 435/1241 cut-off events. For 232153/232246 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 10506 event pairs, 45 based on Foata normal form. 12/1253 useless extension candidates. Maximal degree in co-relation 23726. Up to 380 conditions per place. [2021-03-25 12:21:25,305 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:25,358 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:25,358 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:25,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 443 [2021-03-25 12:21:25,358 INFO L480 AbstractCegarLoop]: Abstraction has has 647 places, 698 transitions, 23156 flow [2021-03-25 12:21:25,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:25,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:25,358 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:25,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2021-03-25 12:21:25,358 INFO L428 AbstractCegarLoop]: === Iteration 427 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:25,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:25,359 INFO L82 PathProgramCache]: Analyzing trace with hash -105877723, now seen corresponding path program 22 times [2021-03-25 12:21:25,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:25,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333938929] [2021-03-25 12:21:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:25,364 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:25,369 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:25,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:25,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:25,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:25,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:25,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:25,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:25,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:25,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:25,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:25,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:25,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:25,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:25,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:25,425 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:25,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:25,439 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:25,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:25,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333938929] [2021-03-25 12:21:25,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:25,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:25,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183180851] [2021-03-25 12:21:25,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:25,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:25,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:25,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:25,442 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:25,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 698 transitions, 23156 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:25,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:25,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:25,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:26,377 INFO L129 PetriNetUnfolder]: 455/1281 cut-off events. [2021-03-25 12:21:26,377 INFO L130 PetriNetUnfolder]: For 232915/232995 co-relation queries the response was YES. [2021-03-25 12:21:26,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25707 conditions, 1281 events. 455/1281 cut-off events. For 232915/232995 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 10608 event pairs, 44 based on Foata normal form. 42/1323 useless extension candidates. Maximal degree in co-relation 25421. Up to 923 conditions per place. [2021-03-25 12:21:26,408 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 525 selfloop transitions, 164 changer transitions 8/705 dead transitions. [2021-03-25 12:21:26,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 705 transitions, 25059 flow [2021-03-25 12:21:26,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:21:26,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:21:26,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2021-03-25 12:21:26,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24772727272727274 [2021-03-25 12:21:26,410 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 327 transitions. [2021-03-25 12:21:26,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 327 transitions. [2021-03-25 12:21:26,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:26,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 327 transitions. [2021-03-25 12:21:26,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:26,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:26,411 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:26,411 INFO L185 Difference]: Start difference. First operand has 647 places, 698 transitions, 23156 flow. Second operand 10 states and 327 transitions. [2021-03-25 12:21:26,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 705 transitions, 25059 flow [2021-03-25 12:21:27,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 705 transitions, 24647 flow, removed 86 selfloop flow, removed 8 redundant places. [2021-03-25 12:21:27,914 INFO L241 Difference]: Finished difference. Result has 651 places, 695 transitions, 23323 flow [2021-03-25 12:21:27,914 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22748, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=698, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23323, PETRI_PLACES=651, PETRI_TRANSITIONS=695} [2021-03-25 12:21:27,914 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 604 predicate places. [2021-03-25 12:21:27,914 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:27,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 651 places, 695 transitions, 23323 flow [2021-03-25 12:21:27,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 651 places, 695 transitions, 23323 flow [2021-03-25 12:21:27,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 648 places, 695 transitions, 23323 flow [2021-03-25 12:21:28,306 INFO L129 PetriNetUnfolder]: 435/1256 cut-off events. [2021-03-25 12:21:28,306 INFO L130 PetriNetUnfolder]: For 226774/226870 co-relation queries the response was YES. [2021-03-25 12:21:28,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24168 conditions, 1256 events. 435/1256 cut-off events. For 226774/226870 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 10636 event pairs, 42 based on Foata normal form. 14/1269 useless extension candidates. Maximal degree in co-relation 23881. Up to 380 conditions per place. [2021-03-25 12:21:28,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:28,395 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:28,395 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:28,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 481 [2021-03-25 12:21:28,395 INFO L480 AbstractCegarLoop]: Abstraction has has 648 places, 695 transitions, 23323 flow [2021-03-25 12:21:28,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:28,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:28,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:28,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2021-03-25 12:21:28,395 INFO L428 AbstractCegarLoop]: === Iteration 428 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:28,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:28,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1409302757, now seen corresponding path program 23 times [2021-03-25 12:21:28,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:28,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800133203] [2021-03-25 12:21:28,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:28,406 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:28,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:28,410 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:28,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:28,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:28,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:28,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:28,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:28,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:28,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:28,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:28,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:28,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:28,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:28,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:28,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:28,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:28,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:28,482 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:28,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:28,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800133203] [2021-03-25 12:21:28,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:28,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:28,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144988252] [2021-03-25 12:21:28,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:28,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:28,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:28,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:28,485 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:28,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 695 transitions, 23323 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:28,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:28,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:28,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:29,343 INFO L129 PetriNetUnfolder]: 452/1278 cut-off events. [2021-03-25 12:21:29,343 INFO L130 PetriNetUnfolder]: For 232781/232861 co-relation queries the response was YES. [2021-03-25 12:21:29,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25741 conditions, 1278 events. 452/1278 cut-off events. For 232781/232861 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10617 event pairs, 44 based on Foata normal form. 42/1320 useless extension candidates. Maximal degree in co-relation 25451. Up to 995 conditions per place. [2021-03-25 12:21:29,372 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 637 selfloop transitions, 48 changer transitions 7/700 dead transitions. [2021-03-25 12:21:29,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 700 transitions, 24959 flow [2021-03-25 12:21:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:21:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:21:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 341 transitions. [2021-03-25 12:21:29,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23484848484848486 [2021-03-25 12:21:29,373 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 341 transitions. [2021-03-25 12:21:29,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 341 transitions. [2021-03-25 12:21:29,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:29,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 341 transitions. [2021-03-25 12:21:29,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.0) internal successors, (341), 11 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:29,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:29,374 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:29,375 INFO L185 Difference]: Start difference. First operand has 648 places, 695 transitions, 23323 flow. Second operand 11 states and 341 transitions. [2021-03-25 12:21:29,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 700 transitions, 24959 flow [2021-03-25 12:21:30,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 647 places, 700 transitions, 24405 flow, removed 85 selfloop flow, removed 11 redundant places. [2021-03-25 12:21:30,821 INFO L241 Difference]: Finished difference. Result has 650 places, 691 transitions, 22728 flow [2021-03-25 12:21:30,821 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22771, PETRI_DIFFERENCE_MINUEND_PLACES=637, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=695, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22728, PETRI_PLACES=650, PETRI_TRANSITIONS=691} [2021-03-25 12:21:30,821 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 603 predicate places. [2021-03-25 12:21:30,821 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:30,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 650 places, 691 transitions, 22728 flow [2021-03-25 12:21:30,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 650 places, 691 transitions, 22728 flow [2021-03-25 12:21:30,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 646 places, 691 transitions, 22728 flow [2021-03-25 12:21:31,155 INFO L129 PetriNetUnfolder]: 436/1263 cut-off events. [2021-03-25 12:21:31,155 INFO L130 PetriNetUnfolder]: For 221405/221411 co-relation queries the response was YES. [2021-03-25 12:21:31,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24129 conditions, 1263 events. 436/1263 cut-off events. For 221405/221411 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10737 event pairs, 40 based on Foata normal form. 5/1268 useless extension candidates. Maximal degree in co-relation 23843. Up to 387 conditions per place. [2021-03-25 12:21:31,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 1034 [2021-03-25 12:21:31,251 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:31,251 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:31,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 430 [2021-03-25 12:21:31,251 INFO L480 AbstractCegarLoop]: Abstraction has has 646 places, 691 transitions, 22728 flow [2021-03-25 12:21:31,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:31,251 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:31,251 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:31,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2021-03-25 12:21:31,251 INFO L428 AbstractCegarLoop]: === Iteration 429 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:31,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:31,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1422035027, now seen corresponding path program 24 times [2021-03-25 12:21:31,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:31,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608463376] [2021-03-25 12:21:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:31,257 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:31,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:31,262 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:31,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:31,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:31,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:31,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:31,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:31,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:31,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:31,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:31,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:31,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:31,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:31,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:31,321 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:31,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:31,334 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:31,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:31,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608463376] [2021-03-25 12:21:31,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:31,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:31,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941296284] [2021-03-25 12:21:31,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:31,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:31,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:31,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:31,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:31,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 691 transitions, 22728 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:31,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:31,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:31,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:32,200 INFO L129 PetriNetUnfolder]: 450/1271 cut-off events. [2021-03-25 12:21:32,200 INFO L130 PetriNetUnfolder]: For 228930/229010 co-relation queries the response was YES. [2021-03-25 12:21:32,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25374 conditions, 1271 events. 450/1271 cut-off events. For 228930/229010 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10537 event pairs, 40 based on Foata normal form. 42/1313 useless extension candidates. Maximal degree in co-relation 25085. Up to 993 conditions per place. [2021-03-25 12:21:32,241 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 636 selfloop transitions, 49 changer transitions 3/696 dead transitions. [2021-03-25 12:21:32,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 696 transitions, 24338 flow [2021-03-25 12:21:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:21:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:21:32,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 314 transitions. [2021-03-25 12:21:32,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23787878787878788 [2021-03-25 12:21:32,242 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 314 transitions. [2021-03-25 12:21:32,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 314 transitions. [2021-03-25 12:21:32,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:32,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 314 transitions. [2021-03-25 12:21:32,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:32,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:32,244 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:32,244 INFO L185 Difference]: Start difference. First operand has 646 places, 691 transitions, 22728 flow. Second operand 10 states and 314 transitions. [2021-03-25 12:21:32,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 696 transitions, 24338 flow [2021-03-25 12:21:33,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 696 transitions, 24193 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-03-25 12:21:33,736 INFO L241 Difference]: Finished difference. Result has 650 places, 691 transitions, 22784 flow [2021-03-25 12:21:33,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22589, PETRI_DIFFERENCE_MINUEND_PLACES=637, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22784, PETRI_PLACES=650, PETRI_TRANSITIONS=691} [2021-03-25 12:21:33,736 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 603 predicate places. [2021-03-25 12:21:33,736 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:33,736 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 650 places, 691 transitions, 22784 flow [2021-03-25 12:21:33,736 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 650 places, 691 transitions, 22784 flow [2021-03-25 12:21:33,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 649 places, 691 transitions, 22784 flow [2021-03-25 12:21:34,068 INFO L129 PetriNetUnfolder]: 434/1254 cut-off events. [2021-03-25 12:21:34,068 INFO L130 PetriNetUnfolder]: For 223483/223580 co-relation queries the response was YES. [2021-03-25 12:21:34,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23985 conditions, 1254 events. 434/1254 cut-off events. For 223483/223580 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10695 event pairs, 37 based on Foata normal form. 14/1268 useless extension candidates. Maximal degree in co-relation 23702. Up to 384 conditions per place. [2021-03-25 12:21:34,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 1034 [2021-03-25 12:21:34,156 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:34,156 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:34,156 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 420 [2021-03-25 12:21:34,156 INFO L480 AbstractCegarLoop]: Abstraction has has 649 places, 691 transitions, 22784 flow [2021-03-25 12:21:34,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:34,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:34,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:34,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2021-03-25 12:21:34,156 INFO L428 AbstractCegarLoop]: === Iteration 430 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:34,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:34,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1534483001, now seen corresponding path program 25 times [2021-03-25 12:21:34,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:34,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529568900] [2021-03-25 12:21:34,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:34,162 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:34,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:34,167 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:34,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:34,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:34,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:34,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:34,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:34,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:34,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:34,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:34,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:34,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:34,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:34,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:34,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:34,233 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:34,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:34,247 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:34,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:34,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529568900] [2021-03-25 12:21:34,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:34,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:34,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167205549] [2021-03-25 12:21:34,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:34,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:34,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:34,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:34,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:34,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 691 transitions, 22784 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:34,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:34,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:34,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:35,183 INFO L129 PetriNetUnfolder]: 449/1275 cut-off events. [2021-03-25 12:21:35,183 INFO L130 PetriNetUnfolder]: For 230045/230209 co-relation queries the response was YES. [2021-03-25 12:21:35,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25462 conditions, 1275 events. 449/1275 cut-off events. For 230045/230209 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10655 event pairs, 29 based on Foata normal form. 57/1332 useless extension candidates. Maximal degree in co-relation 25177. Up to 907 conditions per place. [2021-03-25 12:21:35,213 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 528 selfloop transitions, 158 changer transitions 5/699 dead transitions. [2021-03-25 12:21:35,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 699 transitions, 24544 flow [2021-03-25 12:21:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:21:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:21:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 408 transitions. [2021-03-25 12:21:35,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23776223776223776 [2021-03-25 12:21:35,214 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 408 transitions. [2021-03-25 12:21:35,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 408 transitions. [2021-03-25 12:21:35,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:35,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 408 transitions. [2021-03-25 12:21:35,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.384615384615383) internal successors, (408), 13 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:35,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:35,215 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:35,215 INFO L185 Difference]: Start difference. First operand has 649 places, 691 transitions, 22784 flow. Second operand 13 states and 408 transitions. [2021-03-25 12:21:35,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 699 transitions, 24544 flow [2021-03-25 12:21:36,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 699 transitions, 24260 flow, removed 101 selfloop flow, removed 6 redundant places. [2021-03-25 12:21:36,780 INFO L241 Difference]: Finished difference. Result has 660 places, 691 transitions, 22947 flow [2021-03-25 12:21:36,780 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22502, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=22947, PETRI_PLACES=660, PETRI_TRANSITIONS=691} [2021-03-25 12:21:36,780 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 613 predicate places. [2021-03-25 12:21:36,780 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:36,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 660 places, 691 transitions, 22947 flow [2021-03-25 12:21:36,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 660 places, 691 transitions, 22947 flow [2021-03-25 12:21:36,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 656 places, 691 transitions, 22947 flow [2021-03-25 12:21:37,137 INFO L129 PetriNetUnfolder]: 433/1270 cut-off events. [2021-03-25 12:21:37,137 INFO L130 PetriNetUnfolder]: For 219260/219264 co-relation queries the response was YES. [2021-03-25 12:21:37,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24247 conditions, 1270 events. 433/1270 cut-off events. For 219260/219264 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 10983 event pairs, 39 based on Foata normal form. 3/1273 useless extension candidates. Maximal degree in co-relation 23959. Up to 386 conditions per place. [2021-03-25 12:21:37,186 INFO L142 LiptonReduction]: Number of co-enabled transitions 1036 [2021-03-25 12:21:37,238 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:37,238 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:37,239 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 459 [2021-03-25 12:21:37,239 INFO L480 AbstractCegarLoop]: Abstraction has has 656 places, 691 transitions, 22947 flow [2021-03-25 12:21:37,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:37,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:37,239 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:37,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2021-03-25 12:21:37,239 INFO L428 AbstractCegarLoop]: === Iteration 431 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:37,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:37,239 INFO L82 PathProgramCache]: Analyzing trace with hash -73832181, now seen corresponding path program 26 times [2021-03-25 12:21:37,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:37,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143599745] [2021-03-25 12:21:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:37,245 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:37,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:37,250 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:37,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:37,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:37,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:37,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:37,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:37,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:37,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:37,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:37,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:37,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:37,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:37,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:37,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:37,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:37,335 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:37,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:37,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143599745] [2021-03-25 12:21:37,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:37,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:37,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96381327] [2021-03-25 12:21:37,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:37,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:37,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:37,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:37,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:37,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 691 transitions, 22947 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:37,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:37,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:37,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:38,283 INFO L129 PetriNetUnfolder]: 448/1272 cut-off events. [2021-03-25 12:21:38,283 INFO L130 PetriNetUnfolder]: For 229366/229446 co-relation queries the response was YES. [2021-03-25 12:21:38,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25519 conditions, 1272 events. 448/1272 cut-off events. For 229366/229446 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 10571 event pairs, 45 based on Foata normal form. 42/1314 useless extension candidates. Maximal degree in co-relation 25228. Up to 938 conditions per place. [2021-03-25 12:21:38,316 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 550 selfloop transitions, 133 changer transitions 6/697 dead transitions. [2021-03-25 12:21:38,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 697 transitions, 24619 flow [2021-03-25 12:21:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:21:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:21:38,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 375 transitions. [2021-03-25 12:21:38,317 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23674242424242425 [2021-03-25 12:21:38,317 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 375 transitions. [2021-03-25 12:21:38,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 375 transitions. [2021-03-25 12:21:38,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:38,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 375 transitions. [2021-03-25 12:21:38,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.25) internal successors, (375), 12 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:38,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:38,318 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:38,319 INFO L185 Difference]: Start difference. First operand has 656 places, 691 transitions, 22947 flow. Second operand 12 states and 375 transitions. [2021-03-25 12:21:38,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 697 transitions, 24619 flow [2021-03-25 12:21:39,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 697 transitions, 24335 flow, removed 9 selfloop flow, removed 11 redundant places. [2021-03-25 12:21:39,761 INFO L241 Difference]: Finished difference. Result has 660 places, 689 transitions, 22888 flow [2021-03-25 12:21:39,761 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22671, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=22888, PETRI_PLACES=660, PETRI_TRANSITIONS=689} [2021-03-25 12:21:39,761 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 613 predicate places. [2021-03-25 12:21:39,761 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:39,761 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 660 places, 689 transitions, 22888 flow [2021-03-25 12:21:39,761 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 660 places, 689 transitions, 22888 flow [2021-03-25 12:21:39,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 655 places, 689 transitions, 22888 flow [2021-03-25 12:21:40,121 INFO L129 PetriNetUnfolder]: 429/1242 cut-off events. [2021-03-25 12:21:40,121 INFO L130 PetriNetUnfolder]: For 227374/227503 co-relation queries the response was YES. [2021-03-25 12:21:40,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23851 conditions, 1242 events. 429/1242 cut-off events. For 227374/227503 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10537 event pairs, 31 based on Foata normal form. 16/1257 useless extension candidates. Maximal degree in co-relation 23563. Up to 378 conditions per place. [2021-03-25 12:21:40,159 INFO L142 LiptonReduction]: Number of co-enabled transitions 1034 [2021-03-25 12:21:40,206 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:40,206 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:40,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 445 [2021-03-25 12:21:40,206 INFO L480 AbstractCegarLoop]: Abstraction has has 655 places, 689 transitions, 22888 flow [2021-03-25 12:21:40,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:40,206 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:40,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:40,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2021-03-25 12:21:40,207 INFO L428 AbstractCegarLoop]: === Iteration 432 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:40,207 INFO L82 PathProgramCache]: Analyzing trace with hash 616123915, now seen corresponding path program 27 times [2021-03-25 12:21:40,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:40,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016325156] [2021-03-25 12:21:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:40,212 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:40,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:40,217 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:40,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:40,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:40,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:40,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:40,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:40,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:40,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:40,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:40,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:40,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:40,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:40,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:40,273 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:40,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:40,288 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:40,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:40,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016325156] [2021-03-25 12:21:40,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:40,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:40,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535625739] [2021-03-25 12:21:40,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:40,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:40,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:40,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:40,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:40,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 689 transitions, 22888 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:40,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:40,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:40,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:41,119 INFO L129 PetriNetUnfolder]: 446/1263 cut-off events. [2021-03-25 12:21:41,120 INFO L130 PetriNetUnfolder]: For 229556/229636 co-relation queries the response was YES. [2021-03-25 12:21:41,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25378 conditions, 1263 events. 446/1263 cut-off events. For 229556/229636 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10466 event pairs, 44 based on Foata normal form. 42/1305 useless extension candidates. Maximal degree in co-relation 25087. Up to 987 conditions per place. [2021-03-25 12:21:41,150 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 631 selfloop transitions, 51 changer transitions 3/693 dead transitions. [2021-03-25 12:21:41,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 665 places, 693 transitions, 24437 flow [2021-03-25 12:21:41,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:21:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:21:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 340 transitions. [2021-03-25 12:21:41,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23415977961432508 [2021-03-25 12:21:41,151 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 340 transitions. [2021-03-25 12:21:41,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 340 transitions. [2021-03-25 12:21:41,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:41,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 340 transitions. [2021-03-25 12:21:41,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:41,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:41,152 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:41,152 INFO L185 Difference]: Start difference. First operand has 655 places, 689 transitions, 22888 flow. Second operand 11 states and 340 transitions. [2021-03-25 12:21:41,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 665 places, 693 transitions, 24437 flow [2021-03-25 12:21:42,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 693 transitions, 24149 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-03-25 12:21:42,651 INFO L241 Difference]: Finished difference. Result has 655 places, 688 transitions, 22696 flow [2021-03-25 12:21:42,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22602, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22696, PETRI_PLACES=655, PETRI_TRANSITIONS=688} [2021-03-25 12:21:42,651 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 608 predicate places. [2021-03-25 12:21:42,651 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:42,651 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 655 places, 688 transitions, 22696 flow [2021-03-25 12:21:42,651 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 655 places, 688 transitions, 22696 flow [2021-03-25 12:21:42,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 654 places, 688 transitions, 22696 flow [2021-03-25 12:21:42,988 INFO L129 PetriNetUnfolder]: 431/1258 cut-off events. [2021-03-25 12:21:42,988 INFO L130 PetriNetUnfolder]: For 219628/219639 co-relation queries the response was YES. [2021-03-25 12:21:43,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24062 conditions, 1258 events. 431/1258 cut-off events. For 219628/219639 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 10835 event pairs, 37 based on Foata normal form. 6/1264 useless extension candidates. Maximal degree in co-relation 23749. Up to 386 conditions per place. [2021-03-25 12:21:43,031 INFO L142 LiptonReduction]: Number of co-enabled transitions 1032 [2021-03-25 12:21:43,088 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:43,088 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:43,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 437 [2021-03-25 12:21:43,088 INFO L480 AbstractCegarLoop]: Abstraction has has 654 places, 688 transitions, 22696 flow [2021-03-25 12:21:43,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:43,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:43,089 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:43,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2021-03-25 12:21:43,089 INFO L428 AbstractCegarLoop]: === Iteration 433 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:43,089 INFO L82 PathProgramCache]: Analyzing trace with hash 908122169, now seen corresponding path program 28 times [2021-03-25 12:21:43,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:43,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728723636] [2021-03-25 12:21:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:43,094 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:43,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:43,099 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:43,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:43,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:43,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:43,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:43,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:43,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:43,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:43,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:43,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:43,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:43,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:43,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:43,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:43,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:43,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:43,159 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:43,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:43,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728723636] [2021-03-25 12:21:43,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:43,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:21:43,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600735232] [2021-03-25 12:21:43,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:21:43,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:43,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:21:43,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:21:43,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:43,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 688 transitions, 22696 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:43,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:43,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:43,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:43,995 INFO L129 PetriNetUnfolder]: 445/1260 cut-off events. [2021-03-25 12:21:43,995 INFO L130 PetriNetUnfolder]: For 227647/227727 co-relation queries the response was YES. [2021-03-25 12:21:44,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25243 conditions, 1260 events. 445/1260 cut-off events. For 227647/227727 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10452 event pairs, 46 based on Foata normal form. 54/1313 useless extension candidates. Maximal degree in co-relation 24938. Up to 985 conditions per place. [2021-03-25 12:21:44,025 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 630 selfloop transitions, 53 changer transitions 2/693 dead transitions. [2021-03-25 12:21:44,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 693 transitions, 24356 flow [2021-03-25 12:21:44,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:21:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:21:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 287 transitions. [2021-03-25 12:21:44,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2415824915824916 [2021-03-25 12:21:44,026 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 287 transitions. [2021-03-25 12:21:44,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 287 transitions. [2021-03-25 12:21:44,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:44,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 287 transitions. [2021-03-25 12:21:44,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.88888888888889) internal successors, (287), 9 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:44,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:44,027 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:44,027 INFO L185 Difference]: Start difference. First operand has 654 places, 688 transitions, 22696 flow. Second operand 9 states and 287 transitions. [2021-03-25 12:21:44,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 693 transitions, 24356 flow [2021-03-25 12:21:45,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 693 transitions, 24212 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-03-25 12:21:45,610 INFO L241 Difference]: Finished difference. Result has 656 places, 689 transitions, 22850 flow [2021-03-25 12:21:45,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22552, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22850, PETRI_PLACES=656, PETRI_TRANSITIONS=689} [2021-03-25 12:21:45,610 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 609 predicate places. [2021-03-25 12:21:45,610 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:45,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 656 places, 689 transitions, 22850 flow [2021-03-25 12:21:45,610 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 656 places, 689 transitions, 22850 flow [2021-03-25 12:21:45,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 655 places, 689 transitions, 22850 flow [2021-03-25 12:21:45,972 INFO L129 PetriNetUnfolder]: 428/1231 cut-off events. [2021-03-25 12:21:45,972 INFO L130 PetriNetUnfolder]: For 234996/235084 co-relation queries the response was YES. [2021-03-25 12:21:45,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23886 conditions, 1231 events. 428/1231 cut-off events. For 234996/235084 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10449 event pairs, 37 based on Foata normal form. 17/1248 useless extension candidates. Maximal degree in co-relation 23572. Up to 380 conditions per place. [2021-03-25 12:21:46,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 1036 [2021-03-25 12:21:46,067 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:46,068 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:46,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 458 [2021-03-25 12:21:46,068 INFO L480 AbstractCegarLoop]: Abstraction has has 655 places, 689 transitions, 22850 flow [2021-03-25 12:21:46,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:46,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:46,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:46,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2021-03-25 12:21:46,068 INFO L428 AbstractCegarLoop]: === Iteration 434 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:46,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:46,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1773644389, now seen corresponding path program 29 times [2021-03-25 12:21:46,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:46,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165571119] [2021-03-25 12:21:46,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:46,074 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:46,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:46,079 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:46,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:46,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:46,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:46,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:46,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:46,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:46,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:21:46,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:46,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:46,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:46,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:46,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:46,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:46,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:21:46,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:46,170 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:46,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:46,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165571119] [2021-03-25 12:21:46,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:46,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:46,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796370663] [2021-03-25 12:21:46,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:46,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:46,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:46,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:46,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:46,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 689 transitions, 22850 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:46,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:46,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:46,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:47,198 INFO L129 PetriNetUnfolder]: 446/1268 cut-off events. [2021-03-25 12:21:47,198 INFO L130 PetriNetUnfolder]: For 232831/232911 co-relation queries the response was YES. [2021-03-25 12:21:47,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25500 conditions, 1268 events. 446/1268 cut-off events. For 232831/232911 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10549 event pairs, 39 based on Foata normal form. 42/1310 useless extension candidates. Maximal degree in co-relation 25194. Up to 927 conditions per place. [2021-03-25 12:21:47,242 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 539 selfloop transitions, 145 changer transitions 6/698 dead transitions. [2021-03-25 12:21:47,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 698 transitions, 24774 flow [2021-03-25 12:21:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:21:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:21:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 405 transitions. [2021-03-25 12:21:47,256 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23601398601398602 [2021-03-25 12:21:47,256 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 405 transitions. [2021-03-25 12:21:47,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 405 transitions. [2021-03-25 12:21:47,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:47,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 405 transitions. [2021-03-25 12:21:47,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.153846153846153) internal successors, (405), 13 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:47,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:47,258 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 132.0) internal successors, (1848), 14 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:47,258 INFO L185 Difference]: Start difference. First operand has 655 places, 689 transitions, 22850 flow. Second operand 13 states and 405 transitions. [2021-03-25 12:21:47,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 698 transitions, 24774 flow [2021-03-25 12:21:49,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 698 transitions, 24469 flow, removed 84 selfloop flow, removed 8 redundant places. [2021-03-25 12:21:49,296 INFO L241 Difference]: Finished difference. Result has 663 places, 690 transitions, 23109 flow [2021-03-25 12:21:49,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22545, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=23109, PETRI_PLACES=663, PETRI_TRANSITIONS=690} [2021-03-25 12:21:49,296 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 616 predicate places. [2021-03-25 12:21:49,296 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:49,296 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 663 places, 690 transitions, 23109 flow [2021-03-25 12:21:49,296 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 663 places, 690 transitions, 23109 flow [2021-03-25 12:21:49,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 660 places, 690 transitions, 23109 flow [2021-03-25 12:21:49,647 INFO L129 PetriNetUnfolder]: 426/1238 cut-off events. [2021-03-25 12:21:49,647 INFO L130 PetriNetUnfolder]: For 231382/231386 co-relation queries the response was YES. [2021-03-25 12:21:49,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24092 conditions, 1238 events. 426/1238 cut-off events. For 231382/231386 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 10597 event pairs, 39 based on Foata normal form. 3/1240 useless extension candidates. Maximal degree in co-relation 23776. Up to 381 conditions per place. [2021-03-25 12:21:49,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:49,743 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:49,744 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:49,744 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 448 [2021-03-25 12:21:49,744 INFO L480 AbstractCegarLoop]: Abstraction has has 660 places, 690 transitions, 23109 flow [2021-03-25 12:21:49,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:49,744 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:49,744 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:49,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2021-03-25 12:21:49,744 INFO L428 AbstractCegarLoop]: === Iteration 435 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1311133563, now seen corresponding path program 30 times [2021-03-25 12:21:49,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:49,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771501796] [2021-03-25 12:21:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:49,750 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:49,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:49,755 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:49,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:49,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:49,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:49,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:49,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:49,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:49,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:49,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:49,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:49,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:49,798 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:21:49,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:21:49,811 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:21:49,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:21:49,825 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:49,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:49,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771501796] [2021-03-25 12:21:49,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:49,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:49,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152921527] [2021-03-25 12:21:49,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:49,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:49,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:49,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:49,829 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:49,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 690 transitions, 23109 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:49,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:49,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:49,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:50,734 INFO L129 PetriNetUnfolder]: 443/1256 cut-off events. [2021-03-25 12:21:50,734 INFO L130 PetriNetUnfolder]: For 235277/235357 co-relation queries the response was YES. [2021-03-25 12:21:50,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25564 conditions, 1256 events. 443/1256 cut-off events. For 235277/235357 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10377 event pairs, 41 based on Foata normal form. 64/1320 useless extension candidates. Maximal degree in co-relation 25256. Up to 946 conditions per place. [2021-03-25 12:21:50,765 INFO L132 encePairwiseOnDemand]: 117/132 looper letters, 588 selfloop transitions, 97 changer transitions 3/696 dead transitions. [2021-03-25 12:21:50,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 669 places, 696 transitions, 24860 flow [2021-03-25 12:21:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:21:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:21:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:21:50,766 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2431818181818182 [2021-03-25 12:21:50,766 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:21:50,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:21:50,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:50,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:21:50,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:50,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:50,767 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:50,767 INFO L185 Difference]: Start difference. First operand has 660 places, 690 transitions, 23109 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:21:50,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 669 places, 696 transitions, 24860 flow [2021-03-25 12:21:52,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 696 transitions, 24420 flow, removed 79 selfloop flow, removed 13 redundant places. [2021-03-25 12:21:52,361 INFO L241 Difference]: Finished difference. Result has 659 places, 690 transitions, 22969 flow [2021-03-25 12:21:52,361 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22669, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22969, PETRI_PLACES=659, PETRI_TRANSITIONS=690} [2021-03-25 12:21:52,361 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 612 predicate places. [2021-03-25 12:21:52,361 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:52,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 659 places, 690 transitions, 22969 flow [2021-03-25 12:21:52,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 659 places, 690 transitions, 22969 flow [2021-03-25 12:21:52,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 657 places, 690 transitions, 22969 flow [2021-03-25 12:21:52,725 INFO L129 PetriNetUnfolder]: 426/1249 cut-off events. [2021-03-25 12:21:52,726 INFO L130 PetriNetUnfolder]: For 231863/231872 co-relation queries the response was YES. [2021-03-25 12:21:52,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24068 conditions, 1249 events. 426/1249 cut-off events. For 231863/231872 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 10765 event pairs, 31 based on Foata normal form. 4/1252 useless extension candidates. Maximal degree in co-relation 23782. Up to 380 conditions per place. [2021-03-25 12:21:52,763 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 12:21:52,809 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:52,809 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:52,809 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 448 [2021-03-25 12:21:52,810 INFO L480 AbstractCegarLoop]: Abstraction has has 657 places, 690 transitions, 22969 flow [2021-03-25 12:21:52,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:52,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:52,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:52,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2021-03-25 12:21:52,810 INFO L428 AbstractCegarLoop]: === Iteration 436 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:52,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1155194563, now seen corresponding path program 31 times [2021-03-25 12:21:52,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:52,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515620907] [2021-03-25 12:21:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:52,828 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:52,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:52,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:52,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:52,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:52,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:52,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:52,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:52,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:52,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:52,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:52,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:52,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:52,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:52,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:52,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:52,906 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:21:52,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:21:52,921 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:52,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:52,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515620907] [2021-03-25 12:21:52,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:52,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:52,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129315986] [2021-03-25 12:21:52,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:52,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:52,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:52,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:52,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:52,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 690 transitions, 22969 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:52,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:52,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:52,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:53,812 INFO L129 PetriNetUnfolder]: 442/1245 cut-off events. [2021-03-25 12:21:53,812 INFO L130 PetriNetUnfolder]: For 233569/233649 co-relation queries the response was YES. [2021-03-25 12:21:53,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25350 conditions, 1245 events. 442/1245 cut-off events. For 233569/233649 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10281 event pairs, 39 based on Foata normal form. 53/1298 useless extension candidates. Maximal degree in co-relation 25061. Up to 946 conditions per place. [2021-03-25 12:21:53,842 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 602 selfloop transitions, 75 changer transitions 10/695 dead transitions. [2021-03-25 12:21:53,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 667 places, 695 transitions, 24412 flow [2021-03-25 12:21:53,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:21:53,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:21:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 346 transitions. [2021-03-25 12:21:53,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23829201101928374 [2021-03-25 12:21:53,843 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 346 transitions. [2021-03-25 12:21:53,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 346 transitions. [2021-03-25 12:21:53,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:53,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 346 transitions. [2021-03-25 12:21:53,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.454545454545453) internal successors, (346), 11 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:53,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:53,844 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:53,844 INFO L185 Difference]: Start difference. First operand has 657 places, 690 transitions, 22969 flow. Second operand 11 states and 346 transitions. [2021-03-25 12:21:53,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 667 places, 695 transitions, 24412 flow [2021-03-25 12:21:55,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 695 transitions, 24208 flow, removed 20 selfloop flow, removed 8 redundant places. [2021-03-25 12:21:55,341 INFO L241 Difference]: Finished difference. Result has 660 places, 680 transitions, 22487 flow [2021-03-25 12:21:55,342 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22765, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22487, PETRI_PLACES=660, PETRI_TRANSITIONS=680} [2021-03-25 12:21:55,342 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 613 predicate places. [2021-03-25 12:21:55,342 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:55,342 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 660 places, 680 transitions, 22487 flow [2021-03-25 12:21:55,342 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 660 places, 680 transitions, 22487 flow [2021-03-25 12:21:55,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 657 places, 680 transitions, 22487 flow [2021-03-25 12:21:55,671 INFO L129 PetriNetUnfolder]: 423/1236 cut-off events. [2021-03-25 12:21:55,672 INFO L130 PetriNetUnfolder]: For 234215/234317 co-relation queries the response was YES. [2021-03-25 12:21:55,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23774 conditions, 1236 events. 423/1236 cut-off events. For 234215/234317 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 10580 event pairs, 29 based on Foata normal form. 14/1250 useless extension candidates. Maximal degree in co-relation 23489. Up to 372 conditions per place. [2021-03-25 12:21:55,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 1018 [2021-03-25 12:21:55,762 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:55,762 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:55,762 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 420 [2021-03-25 12:21:55,763 INFO L480 AbstractCegarLoop]: Abstraction has has 657 places, 680 transitions, 22487 flow [2021-03-25 12:21:55,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:55,763 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:55,763 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:55,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2021-03-25 12:21:55,763 INFO L428 AbstractCegarLoop]: === Iteration 437 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:55,763 INFO L82 PathProgramCache]: Analyzing trace with hash 362611693, now seen corresponding path program 32 times [2021-03-25 12:21:55,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:55,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485519491] [2021-03-25 12:21:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:55,771 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:55,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:55,776 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:55,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:55,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:55,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:55,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:55,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:55,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:55,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:55,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:55,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:55,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:55,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:55,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:55,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:55,845 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:21:55,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:21:55,859 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:55,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:55,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485519491] [2021-03-25 12:21:55,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:55,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:21:55,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431600040] [2021-03-25 12:21:55,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:21:55,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:55,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:21:55,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:21:55,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:55,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 680 transitions, 22487 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:55,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:55,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:55,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:56,668 INFO L129 PetriNetUnfolder]: 440/1244 cut-off events. [2021-03-25 12:21:56,668 INFO L130 PetriNetUnfolder]: For 230306/230386 co-relation queries the response was YES. [2021-03-25 12:21:56,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25083 conditions, 1244 events. 440/1244 cut-off events. For 230306/230386 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10299 event pairs, 48 based on Foata normal form. 54/1297 useless extension candidates. Maximal degree in co-relation 24795. Up to 974 conditions per place. [2021-03-25 12:21:56,695 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 623 selfloop transitions, 45 changer transitions 6/682 dead transitions. [2021-03-25 12:21:56,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 682 transitions, 23856 flow [2021-03-25 12:21:56,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:21:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:21:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:21:56,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23636363636363636 [2021-03-25 12:21:56,697 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:21:56,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:21:56,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:56,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:21:56,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:56,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:56,698 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:56,698 INFO L185 Difference]: Start difference. First operand has 657 places, 680 transitions, 22487 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:21:56,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 666 places, 682 transitions, 23856 flow [2021-03-25 12:21:58,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 682 transitions, 23630 flow, removed 8 selfloop flow, removed 14 redundant places. [2021-03-25 12:21:58,158 INFO L241 Difference]: Finished difference. Result has 653 places, 674 transitions, 22163 flow [2021-03-25 12:21:58,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22261, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22163, PETRI_PLACES=653, PETRI_TRANSITIONS=674} [2021-03-25 12:21:58,158 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 606 predicate places. [2021-03-25 12:21:58,158 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:21:58,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 653 places, 674 transitions, 22163 flow [2021-03-25 12:21:58,158 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 653 places, 674 transitions, 22163 flow [2021-03-25 12:21:58,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 649 places, 674 transitions, 22163 flow [2021-03-25 12:21:58,476 INFO L129 PetriNetUnfolder]: 425/1227 cut-off events. [2021-03-25 12:21:58,477 INFO L130 PetriNetUnfolder]: For 229054/229138 co-relation queries the response was YES. [2021-03-25 12:21:58,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23593 conditions, 1227 events. 425/1227 cut-off events. For 229054/229138 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10380 event pairs, 34 based on Foata normal form. 9/1232 useless extension candidates. Maximal degree in co-relation 23310. Up to 375 conditions per place. [2021-03-25 12:21:58,514 INFO L142 LiptonReduction]: Number of co-enabled transitions 1000 [2021-03-25 12:21:58,562 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:21:58,562 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:21:58,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 404 [2021-03-25 12:21:58,562 INFO L480 AbstractCegarLoop]: Abstraction has has 649 places, 674 transitions, 22163 flow [2021-03-25 12:21:58,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:58,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:21:58,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:21:58,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2021-03-25 12:21:58,562 INFO L428 AbstractCegarLoop]: === Iteration 438 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:21:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:21:58,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1744172427, now seen corresponding path program 33 times [2021-03-25 12:21:58,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:21:58,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718676539] [2021-03-25 12:21:58,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:21:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:21:58,568 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:21:58,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:21:58,573 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:21:58,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:21:58,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:58,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:58,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:58,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:58,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:58,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:58,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:58,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:21:58,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:21:58,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:58,639 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:21:58,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:21:58,654 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:21:58,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:21:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:21:58,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718676539] [2021-03-25 12:21:58,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:21:58,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:21:58,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977227229] [2021-03-25 12:21:58,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:21:58,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:21:58,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:21:58,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:21:58,657 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:21:58,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 674 transitions, 22163 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:58,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:21:58,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:21:58,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:21:59,502 INFO L129 PetriNetUnfolder]: 442/1250 cut-off events. [2021-03-25 12:21:59,502 INFO L130 PetriNetUnfolder]: For 235669/235730 co-relation queries the response was YES. [2021-03-25 12:21:59,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25185 conditions, 1250 events. 442/1250 cut-off events. For 235669/235730 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10331 event pairs, 45 based on Foata normal form. 54/1304 useless extension candidates. Maximal degree in co-relation 24899. Up to 964 conditions per place. [2021-03-25 12:21:59,535 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 613 selfloop transitions, 57 changer transitions 8/686 dead transitions. [2021-03-25 12:21:59,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 686 transitions, 24436 flow [2021-03-25 12:21:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:21:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:21:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 368 transitions. [2021-03-25 12:21:59,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23232323232323232 [2021-03-25 12:21:59,536 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 368 transitions. [2021-03-25 12:21:59,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 368 transitions. [2021-03-25 12:21:59,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:21:59,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 368 transitions. [2021-03-25 12:21:59,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.666666666666668) internal successors, (368), 12 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:59,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:59,537 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 132.0) internal successors, (1716), 13 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:21:59,537 INFO L185 Difference]: Start difference. First operand has 649 places, 674 transitions, 22163 flow. Second operand 12 states and 368 transitions. [2021-03-25 12:21:59,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 686 transitions, 24436 flow [2021-03-25 12:22:00,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 686 transitions, 24281 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-03-25 12:22:00,913 INFO L241 Difference]: Finished difference. Result has 655 places, 675 transitions, 22261 flow [2021-03-25 12:22:00,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22012, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=22261, PETRI_PLACES=655, PETRI_TRANSITIONS=675} [2021-03-25 12:22:00,913 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 608 predicate places. [2021-03-25 12:22:00,914 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:00,914 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 655 places, 675 transitions, 22261 flow [2021-03-25 12:22:00,914 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 655 places, 675 transitions, 22261 flow [2021-03-25 12:22:00,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 651 places, 675 transitions, 22261 flow [2021-03-25 12:22:01,231 INFO L129 PetriNetUnfolder]: 421/1203 cut-off events. [2021-03-25 12:22:01,231 INFO L130 PetriNetUnfolder]: For 232072/232164 co-relation queries the response was YES. [2021-03-25 12:22:01,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23476 conditions, 1203 events. 421/1203 cut-off events. For 232072/232164 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10139 event pairs, 35 based on Foata normal form. 15/1218 useless extension candidates. Maximal degree in co-relation 23189. Up to 369 conditions per place. [2021-03-25 12:22:01,270 INFO L142 LiptonReduction]: Number of co-enabled transitions 1004 [2021-03-25 12:22:01,318 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:01,318 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:01,318 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 404 [2021-03-25 12:22:01,318 INFO L480 AbstractCegarLoop]: Abstraction has has 651 places, 675 transitions, 22261 flow [2021-03-25 12:22:01,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:01,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:01,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:01,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2021-03-25 12:22:01,319 INFO L428 AbstractCegarLoop]: === Iteration 439 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:01,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:01,319 INFO L82 PathProgramCache]: Analyzing trace with hash 877049613, now seen corresponding path program 34 times [2021-03-25 12:22:01,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:01,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625403716] [2021-03-25 12:22:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:01,324 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:01,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:01,329 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:01,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:01,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:01,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:01,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:01,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:01,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:01,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:01,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:01,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:01,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:01,382 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:01,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:01,395 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:01,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:01,410 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:01,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:01,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:01,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625403716] [2021-03-25 12:22:01,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:01,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:22:01,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043307615] [2021-03-25 12:22:01,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:22:01,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:01,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:22:01,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:22:01,413 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:01,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 675 transitions, 22261 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:01,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:01,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:01,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:02,338 INFO L129 PetriNetUnfolder]: 438/1247 cut-off events. [2021-03-25 12:22:02,338 INFO L130 PetriNetUnfolder]: For 233245/233325 co-relation queries the response was YES. [2021-03-25 12:22:02,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25112 conditions, 1247 events. 438/1247 cut-off events. For 233245/233325 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10326 event pairs, 34 based on Foata normal form. 64/1311 useless extension candidates. Maximal degree in co-relation 24822. Up to 905 conditions per place. [2021-03-25 12:22:02,374 INFO L132 encePairwiseOnDemand]: 117/132 looper letters, 561 selfloop transitions, 109 changer transitions 6/684 dead transitions. [2021-03-25 12:22:02,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 684 transitions, 24398 flow [2021-03-25 12:22:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:22:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:22:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 350 transitions. [2021-03-25 12:22:02,376 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24104683195592286 [2021-03-25 12:22:02,376 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 350 transitions. [2021-03-25 12:22:02,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 350 transitions. [2021-03-25 12:22:02,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:02,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 350 transitions. [2021-03-25 12:22:02,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:02,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:02,377 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:02,377 INFO L185 Difference]: Start difference. First operand has 651 places, 675 transitions, 22261 flow. Second operand 11 states and 350 transitions. [2021-03-25 12:22:02,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 684 transitions, 24398 flow [2021-03-25 12:22:03,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 684 transitions, 24200 flow, removed 44 selfloop flow, removed 11 redundant places. [2021-03-25 12:22:03,767 INFO L241 Difference]: Finished difference. Result has 653 places, 672 transitions, 22335 flow [2021-03-25 12:22:03,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22079, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22335, PETRI_PLACES=653, PETRI_TRANSITIONS=672} [2021-03-25 12:22:03,767 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 606 predicate places. [2021-03-25 12:22:03,767 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:03,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 653 places, 672 transitions, 22335 flow [2021-03-25 12:22:03,767 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 653 places, 672 transitions, 22335 flow [2021-03-25 12:22:03,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 651 places, 672 transitions, 22335 flow [2021-03-25 12:22:04,082 INFO L129 PetriNetUnfolder]: 419/1217 cut-off events. [2021-03-25 12:22:04,082 INFO L130 PetriNetUnfolder]: For 226725/226760 co-relation queries the response was YES. [2021-03-25 12:22:04,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23460 conditions, 1217 events. 419/1217 cut-off events. For 226725/226760 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10307 event pairs, 39 based on Foata normal form. 12/1229 useless extension candidates. Maximal degree in co-relation 23175. Up to 369 conditions per place. [2021-03-25 12:22:04,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 1000 [2021-03-25 12:22:04,217 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:04,217 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:04,217 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 450 [2021-03-25 12:22:04,218 INFO L480 AbstractCegarLoop]: Abstraction has has 651 places, 672 transitions, 22335 flow [2021-03-25 12:22:04,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:04,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:04,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:04,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2021-03-25 12:22:04,218 INFO L428 AbstractCegarLoop]: === Iteration 440 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:04,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:04,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2096520925, now seen corresponding path program 35 times [2021-03-25 12:22:04,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:04,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330925397] [2021-03-25 12:22:04,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:04,224 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:04,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:04,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:04,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:04,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:04,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:04,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:04,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:04,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:04,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:04,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:04,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:04,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:04,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:04,273 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:04,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:04,286 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:04,299 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:04,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:04,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330925397] [2021-03-25 12:22:04,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:04,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:04,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686641117] [2021-03-25 12:22:04,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:04,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:04,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:04,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:04,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:04,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 672 transitions, 22335 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:04,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:04,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:04,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:05,106 INFO L129 PetriNetUnfolder]: 435/1242 cut-off events. [2021-03-25 12:22:05,106 INFO L130 PetriNetUnfolder]: For 227864/227944 co-relation queries the response was YES. [2021-03-25 12:22:05,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24963 conditions, 1242 events. 435/1242 cut-off events. For 227864/227944 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10275 event pairs, 47 based on Foata normal form. 32/1273 useless extension candidates. Maximal degree in co-relation 24675. Up to 927 conditions per place. [2021-03-25 12:22:05,135 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 550 selfloop transitions, 116 changer transitions 4/678 dead transitions. [2021-03-25 12:22:05,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 678 transitions, 23983 flow [2021-03-25 12:22:05,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:05,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2021-03-25 12:22:05,137 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23939393939393938 [2021-03-25 12:22:05,137 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 316 transitions. [2021-03-25 12:22:05,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 316 transitions. [2021-03-25 12:22:05,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:05,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 316 transitions. [2021-03-25 12:22:05,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.6) internal successors, (316), 10 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:05,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:05,138 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:05,138 INFO L185 Difference]: Start difference. First operand has 651 places, 672 transitions, 22335 flow. Second operand 10 states and 316 transitions. [2021-03-25 12:22:05,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 678 transitions, 23983 flow [2021-03-25 12:22:06,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 678 transitions, 23719 flow, removed 23 selfloop flow, removed 12 redundant places. [2021-03-25 12:22:06,540 INFO L241 Difference]: Finished difference. Result has 650 places, 672 transitions, 22439 flow [2021-03-25 12:22:06,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22074, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22439, PETRI_PLACES=650, PETRI_TRANSITIONS=672} [2021-03-25 12:22:06,540 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 603 predicate places. [2021-03-25 12:22:06,540 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:06,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 650 places, 672 transitions, 22439 flow [2021-03-25 12:22:06,540 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 650 places, 672 transitions, 22439 flow [2021-03-25 12:22:06,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 649 places, 672 transitions, 22439 flow [2021-03-25 12:22:06,852 INFO L129 PetriNetUnfolder]: 419/1217 cut-off events. [2021-03-25 12:22:06,852 INFO L130 PetriNetUnfolder]: For 218611/218647 co-relation queries the response was YES. [2021-03-25 12:22:06,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23718 conditions, 1217 events. 419/1217 cut-off events. For 218611/218647 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 10360 event pairs, 34 based on Foata normal form. 7/1224 useless extension candidates. Maximal degree in co-relation 23406. Up to 373 conditions per place. [2021-03-25 12:22:06,889 INFO L142 LiptonReduction]: Number of co-enabled transitions 1000 [2021-03-25 12:22:06,937 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:06,937 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:06,937 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 397 [2021-03-25 12:22:06,937 INFO L480 AbstractCegarLoop]: Abstraction has has 649 places, 672 transitions, 22439 flow [2021-03-25 12:22:06,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:06,937 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:06,937 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:06,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2021-03-25 12:22:06,937 INFO L428 AbstractCegarLoop]: === Iteration 441 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:06,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:06,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1019078357, now seen corresponding path program 36 times [2021-03-25 12:22:06,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:06,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003569808] [2021-03-25 12:22:06,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:06,943 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:06,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:06,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:06,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:06,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:06,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:06,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:06,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:06,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:06,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:06,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:06,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:07,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:07,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:07,026 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:07,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:07,033 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:07,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:07,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:07,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003569808] [2021-03-25 12:22:07,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:07,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:22:07,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870615944] [2021-03-25 12:22:07,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:22:07,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:07,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:22:07,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:22:07,036 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:07,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 672 transitions, 22439 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:07,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:07,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:07,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:07,960 INFO L129 PetriNetUnfolder]: 434/1236 cut-off events. [2021-03-25 12:22:07,960 INFO L130 PetriNetUnfolder]: For 226840/226920 co-relation queries the response was YES. [2021-03-25 12:22:07,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24943 conditions, 1236 events. 434/1236 cut-off events. For 226840/226920 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 10221 event pairs, 40 based on Foata normal form. 42/1278 useless extension candidates. Maximal degree in co-relation 24639. Up to 867 conditions per place. [2021-03-25 12:22:07,985 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 491 selfloop transitions, 178 changer transitions 2/679 dead transitions. [2021-03-25 12:22:07,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 679 transitions, 24156 flow [2021-03-25 12:22:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:22:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:22:07,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 355 transitions. [2021-03-25 12:22:07,987 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24449035812672176 [2021-03-25 12:22:07,987 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 355 transitions. [2021-03-25 12:22:07,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 355 transitions. [2021-03-25 12:22:07,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:07,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 355 transitions. [2021-03-25 12:22:07,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.27272727272727) internal successors, (355), 11 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:07,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:07,988 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 132.0) internal successors, (1584), 12 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:07,988 INFO L185 Difference]: Start difference. First operand has 649 places, 672 transitions, 22439 flow. Second operand 11 states and 355 transitions. [2021-03-25 12:22:07,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 679 transitions, 24156 flow [2021-03-25 12:22:09,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 679 transitions, 23872 flow, removed 74 selfloop flow, removed 7 redundant places. [2021-03-25 12:22:09,310 INFO L241 Difference]: Finished difference. Result has 655 places, 674 transitions, 22829 flow [2021-03-25 12:22:09,311 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22155, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22829, PETRI_PLACES=655, PETRI_TRANSITIONS=674} [2021-03-25 12:22:09,311 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 608 predicate places. [2021-03-25 12:22:09,311 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:09,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 655 places, 674 transitions, 22829 flow [2021-03-25 12:22:09,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 655 places, 674 transitions, 22829 flow [2021-03-25 12:22:09,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 654 places, 674 transitions, 22829 flow [2021-03-25 12:22:09,619 INFO L129 PetriNetUnfolder]: 421/1222 cut-off events. [2021-03-25 12:22:09,619 INFO L130 PetriNetUnfolder]: For 230562/230596 co-relation queries the response was YES. [2021-03-25 12:22:09,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23901 conditions, 1222 events. 421/1222 cut-off events. For 230562/230596 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10401 event pairs, 36 based on Foata normal form. 9/1229 useless extension candidates. Maximal degree in co-relation 23588. Up to 371 conditions per place. [2021-03-25 12:22:09,656 INFO L142 LiptonReduction]: Number of co-enabled transitions 1004 [2021-03-25 12:22:09,703 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:09,703 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:09,703 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 392 [2021-03-25 12:22:09,703 INFO L480 AbstractCegarLoop]: Abstraction has has 654 places, 674 transitions, 22829 flow [2021-03-25 12:22:09,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:09,703 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:09,703 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:09,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2021-03-25 12:22:09,703 INFO L428 AbstractCegarLoop]: === Iteration 442 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:09,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:09,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2098018643, now seen corresponding path program 37 times [2021-03-25 12:22:09,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:09,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438484633] [2021-03-25 12:22:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:09,709 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:09,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:09,714 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:09,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:09,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:09,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:09,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:09,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:09,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:09,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:09,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:09,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:09,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:09,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:09,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:09,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:09,761 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:09,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:09,764 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:09,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:09,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438484633] [2021-03-25 12:22:09,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:09,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 12:22:09,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596789048] [2021-03-25 12:22:09,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 12:22:09,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:09,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 12:22:09,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 12:22:09,767 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:09,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 674 transitions, 22829 flow. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:09,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:09,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:09,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:10,480 INFO L129 PetriNetUnfolder]: 434/1244 cut-off events. [2021-03-25 12:22:10,480 INFO L130 PetriNetUnfolder]: For 229854/229934 co-relation queries the response was YES. [2021-03-25 12:22:10,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25150 conditions, 1244 events. 434/1244 cut-off events. For 229854/229934 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 10328 event pairs, 46 based on Foata normal form. 32/1275 useless extension candidates. Maximal degree in co-relation 24845. Up to 978 conditions per place. [2021-03-25 12:22:10,508 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 637 selfloop transitions, 32 changer transitions 2/679 dead transitions. [2021-03-25 12:22:10,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 679 transitions, 24377 flow [2021-03-25 12:22:10,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:22:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:22:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 252 transitions. [2021-03-25 12:22:10,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23863636363636365 [2021-03-25 12:22:10,510 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 252 transitions. [2021-03-25 12:22:10,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 252 transitions. [2021-03-25 12:22:10,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:10,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 252 transitions. [2021-03-25 12:22:10,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.5) internal successors, (252), 8 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:10,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:10,510 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 132.0) internal successors, (1188), 9 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:10,510 INFO L185 Difference]: Start difference. First operand has 654 places, 674 transitions, 22829 flow. Second operand 8 states and 252 transitions. [2021-03-25 12:22:10,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 679 transitions, 24377 flow [2021-03-25 12:22:11,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 651 places, 679 transitions, 23729 flow, removed 98 selfloop flow, removed 10 redundant places. [2021-03-25 12:22:11,943 INFO L241 Difference]: Finished difference. Result has 654 places, 675 transitions, 22323 flow [2021-03-25 12:22:11,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22181, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22323, PETRI_PLACES=654, PETRI_TRANSITIONS=675} [2021-03-25 12:22:11,944 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 607 predicate places. [2021-03-25 12:22:11,944 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:11,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 654 places, 675 transitions, 22323 flow [2021-03-25 12:22:11,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 654 places, 675 transitions, 22323 flow [2021-03-25 12:22:11,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 653 places, 675 transitions, 22323 flow [2021-03-25 12:22:12,270 INFO L129 PetriNetUnfolder]: 418/1224 cut-off events. [2021-03-25 12:22:12,270 INFO L130 PetriNetUnfolder]: For 222365/222381 co-relation queries the response was YES. [2021-03-25 12:22:12,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23504 conditions, 1224 events. 418/1224 cut-off events. For 222365/222381 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 10414 event pairs, 33 based on Foata normal form. 10/1234 useless extension candidates. Maximal degree in co-relation 23190. Up to 371 conditions per place. [2021-03-25 12:22:12,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-25 12:22:12,352 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:12,352 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:12,352 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 408 [2021-03-25 12:22:12,352 INFO L480 AbstractCegarLoop]: Abstraction has has 653 places, 675 transitions, 22323 flow [2021-03-25 12:22:12,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:12,352 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:12,352 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:12,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2021-03-25 12:22:12,352 INFO L428 AbstractCegarLoop]: === Iteration 443 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:12,352 INFO L82 PathProgramCache]: Analyzing trace with hash 991887165, now seen corresponding path program 38 times [2021-03-25 12:22:12,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:12,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093525926] [2021-03-25 12:22:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:12,358 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:12,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:12,363 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:12,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:12,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:12,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:12,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:12,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:12,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:12,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:12,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:12,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:12,395 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:12,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:12,398 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:12,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:12,410 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:12,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:12,422 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:12,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:12,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093525926] [2021-03-25 12:22:12,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:12,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:22:12,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640045795] [2021-03-25 12:22:12,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:22:12,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:12,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:22:12,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:22:12,425 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:12,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 675 transitions, 22323 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:12,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:12,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:12,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:13,141 INFO L129 PetriNetUnfolder]: 433/1245 cut-off events. [2021-03-25 12:22:13,141 INFO L130 PetriNetUnfolder]: For 226632/226712 co-relation queries the response was YES. [2021-03-25 12:22:13,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24807 conditions, 1245 events. 433/1245 cut-off events. For 226632/226712 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 10365 event pairs, 46 based on Foata normal form. 32/1276 useless extension candidates. Maximal degree in co-relation 24501. Up to 973 conditions per place. [2021-03-25 12:22:13,168 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 632 selfloop transitions, 35 changer transitions 4/679 dead transitions. [2021-03-25 12:22:13,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 679 transitions, 23775 flow [2021-03-25 12:22:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:22:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:22:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 278 transitions. [2021-03-25 12:22:13,170 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.234006734006734 [2021-03-25 12:22:13,170 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 278 transitions. [2021-03-25 12:22:13,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 278 transitions. [2021-03-25 12:22:13,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:13,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 278 transitions. [2021-03-25 12:22:13,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:13,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:13,171 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:13,171 INFO L185 Difference]: Start difference. First operand has 653 places, 675 transitions, 22323 flow. Second operand 9 states and 278 transitions. [2021-03-25 12:22:13,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 679 transitions, 23775 flow [2021-03-25 12:22:14,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 679 transitions, 23683 flow, removed 15 selfloop flow, removed 5 redundant places. [2021-03-25 12:22:14,714 INFO L241 Difference]: Finished difference. Result has 658 places, 673 transitions, 22246 flow [2021-03-25 12:22:14,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22231, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22246, PETRI_PLACES=658, PETRI_TRANSITIONS=673} [2021-03-25 12:22:14,714 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 611 predicate places. [2021-03-25 12:22:14,714 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:14,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 658 places, 673 transitions, 22246 flow [2021-03-25 12:22:14,714 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 658 places, 673 transitions, 22246 flow [2021-03-25 12:22:14,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 656 places, 673 transitions, 22246 flow [2021-03-25 12:22:15,030 INFO L129 PetriNetUnfolder]: 418/1223 cut-off events. [2021-03-25 12:22:15,030 INFO L130 PetriNetUnfolder]: For 218892/218905 co-relation queries the response was YES. [2021-03-25 12:22:15,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23564 conditions, 1223 events. 418/1223 cut-off events. For 218892/218905 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10417 event pairs, 30 based on Foata normal form. 8/1231 useless extension candidates. Maximal degree in co-relation 23278. Up to 371 conditions per place. [2021-03-25 12:22:15,069 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-25 12:22:15,121 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:15,121 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:15,121 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 407 [2021-03-25 12:22:15,121 INFO L480 AbstractCegarLoop]: Abstraction has has 656 places, 673 transitions, 22246 flow [2021-03-25 12:22:15,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:15,121 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:15,121 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:15,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2021-03-25 12:22:15,121 INFO L428 AbstractCegarLoop]: === Iteration 444 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:15,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:15,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1338382549, now seen corresponding path program 39 times [2021-03-25 12:22:15,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:15,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367215776] [2021-03-25 12:22:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:15,127 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:15,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:15,132 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:15,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:15,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:15,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:15,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:15,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:15,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:15,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:15,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:15,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:15,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:15,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:15,177 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:15,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:15,190 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:15,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:15,204 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:15,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:15,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367215776] [2021-03-25 12:22:15,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:15,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:15,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368455869] [2021-03-25 12:22:15,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:15,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:15,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:15,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:15,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:15,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 673 transitions, 22246 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:15,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:15,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:15,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:15,975 INFO L129 PetriNetUnfolder]: 432/1239 cut-off events. [2021-03-25 12:22:15,975 INFO L130 PetriNetUnfolder]: For 225600/225680 co-relation queries the response was YES. [2021-03-25 12:22:15,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24724 conditions, 1239 events. 432/1239 cut-off events. For 225600/225680 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 10308 event pairs, 46 based on Foata normal form. 32/1270 useless extension candidates. Maximal degree in co-relation 24435. Up to 970 conditions per place. [2021-03-25 12:22:16,005 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 629 selfloop transitions, 32 changer transitions 7/676 dead transitions. [2021-03-25 12:22:16,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 665 places, 676 transitions, 23675 flow [2021-03-25 12:22:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 303 transitions. [2021-03-25 12:22:16,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22954545454545455 [2021-03-25 12:22:16,006 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 303 transitions. [2021-03-25 12:22:16,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 303 transitions. [2021-03-25 12:22:16,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:16,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 303 transitions. [2021-03-25 12:22:16,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.3) internal successors, (303), 10 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:16,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:16,007 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:16,007 INFO L185 Difference]: Start difference. First operand has 656 places, 673 transitions, 22246 flow. Second operand 10 states and 303 transitions. [2021-03-25 12:22:16,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 665 places, 676 transitions, 23675 flow [2021-03-25 12:22:17,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 676 transitions, 23598 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-25 12:22:17,463 INFO L241 Difference]: Finished difference. Result has 659 places, 667 transitions, 22034 flow [2021-03-25 12:22:17,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=22171, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=641, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22034, PETRI_PLACES=659, PETRI_TRANSITIONS=667} [2021-03-25 12:22:17,463 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 612 predicate places. [2021-03-25 12:22:17,463 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:17,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 659 places, 667 transitions, 22034 flow [2021-03-25 12:22:17,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 659 places, 667 transitions, 22034 flow [2021-03-25 12:22:17,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 657 places, 667 transitions, 22034 flow [2021-03-25 12:22:17,778 INFO L129 PetriNetUnfolder]: 412/1196 cut-off events. [2021-03-25 12:22:17,778 INFO L130 PetriNetUnfolder]: For 222068/222156 co-relation queries the response was YES. [2021-03-25 12:22:17,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23119 conditions, 1196 events. 412/1196 cut-off events. For 222068/222156 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 10047 event pairs, 36 based on Foata normal form. 14/1209 useless extension candidates. Maximal degree in co-relation 22833. Up to 362 conditions per place. [2021-03-25 12:22:17,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 1004 [2021-03-25 12:22:17,865 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:17,865 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:17,865 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 402 [2021-03-25 12:22:17,865 INFO L480 AbstractCegarLoop]: Abstraction has has 657 places, 667 transitions, 22034 flow [2021-03-25 12:22:17,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:17,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:17,865 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:17,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2021-03-25 12:22:17,865 INFO L428 AbstractCegarLoop]: === Iteration 445 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:17,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:17,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1973051775, now seen corresponding path program 40 times [2021-03-25 12:22:17,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:17,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427873722] [2021-03-25 12:22:17,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:17,871 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:17,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:17,876 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:17,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:17,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:17,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:17,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:17,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:17,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:17,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:17,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:17,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:17,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:17,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:17,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:17,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:17,932 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:17,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:17,936 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:17,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:17,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427873722] [2021-03-25 12:22:17,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:17,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:22:17,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891790554] [2021-03-25 12:22:17,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:22:17,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:17,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:22:17,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:22:17,939 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:17,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 667 transitions, 22034 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:17,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:17,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:17,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:18,684 INFO L129 PetriNetUnfolder]: 429/1232 cut-off events. [2021-03-25 12:22:18,684 INFO L130 PetriNetUnfolder]: For 224853/224933 co-relation queries the response was YES. [2021-03-25 12:22:18,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24617 conditions, 1232 events. 429/1232 cut-off events. For 224853/224933 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10238 event pairs, 46 based on Foata normal form. 32/1263 useless extension candidates. Maximal degree in co-relation 24328. Up to 970 conditions per place. [2021-03-25 12:22:18,711 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 629 selfloop transitions, 31 changer transitions 2/670 dead transitions. [2021-03-25 12:22:18,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 665 places, 670 transitions, 23477 flow [2021-03-25 12:22:18,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:22:18,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:22:18,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 276 transitions. [2021-03-25 12:22:18,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23232323232323232 [2021-03-25 12:22:18,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 276 transitions. [2021-03-25 12:22:18,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 276 transitions. [2021-03-25 12:22:18,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:18,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 276 transitions. [2021-03-25 12:22:18,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.666666666666668) internal successors, (276), 9 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:18,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:18,713 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:18,713 INFO L185 Difference]: Start difference. First operand has 657 places, 667 transitions, 22034 flow. Second operand 9 states and 276 transitions. [2021-03-25 12:22:18,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 665 places, 670 transitions, 23477 flow [2021-03-25 12:22:20,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 653 places, 670 transitions, 23327 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:22:20,115 INFO L241 Difference]: Finished difference. Result has 655 places, 666 transitions, 21925 flow [2021-03-25 12:22:20,115 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=21884, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=21925, PETRI_PLACES=655, PETRI_TRANSITIONS=666} [2021-03-25 12:22:20,115 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 608 predicate places. [2021-03-25 12:22:20,115 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:20,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 655 places, 666 transitions, 21925 flow [2021-03-25 12:22:20,115 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 655 places, 666 transitions, 21925 flow [2021-03-25 12:22:20,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 654 places, 666 transitions, 21925 flow [2021-03-25 12:22:20,418 INFO L129 PetriNetUnfolder]: 413/1205 cut-off events. [2021-03-25 12:22:20,418 INFO L130 PetriNetUnfolder]: For 222164/222238 co-relation queries the response was YES. [2021-03-25 12:22:20,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23248 conditions, 1205 events. 413/1205 cut-off events. For 222164/222238 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 10240 event pairs, 33 based on Foata normal form. 15/1220 useless extension candidates. Maximal degree in co-relation 22935. Up to 365 conditions per place. [2021-03-25 12:22:20,453 INFO L142 LiptonReduction]: Number of co-enabled transitions 1000 [2021-03-25 12:22:20,501 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:20,501 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:20,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 386 [2021-03-25 12:22:20,501 INFO L480 AbstractCegarLoop]: Abstraction has has 654 places, 666 transitions, 21925 flow [2021-03-25 12:22:20,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:20,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:20,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:20,501 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2021-03-25 12:22:20,501 INFO L428 AbstractCegarLoop]: === Iteration 446 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:20,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:20,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1776405045, now seen corresponding path program 41 times [2021-03-25 12:22:20,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:20,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9601959] [2021-03-25 12:22:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:20,507 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:20,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:20,511 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:20,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:20,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:20,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:20,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:20,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:20,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:20,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:20,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:20,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:20,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:20,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:20,566 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:20,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:20,579 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:20,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:20,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9601959] [2021-03-25 12:22:20,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:20,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:20,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281944059] [2021-03-25 12:22:20,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:20,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:20,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:20,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:20,582 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:20,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 666 transitions, 21925 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:20,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:20,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:20,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:21,332 INFO L129 PetriNetUnfolder]: 428/1226 cut-off events. [2021-03-25 12:22:21,332 INFO L130 PetriNetUnfolder]: For 225202/225282 co-relation queries the response was YES. [2021-03-25 12:22:21,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24517 conditions, 1226 events. 428/1226 cut-off events. For 225202/225282 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 10140 event pairs, 46 based on Foata normal form. 32/1257 useless extension candidates. Maximal degree in co-relation 24212. Up to 967 conditions per place. [2021-03-25 12:22:21,359 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 628 selfloop transitions, 24 changer transitions 8/668 dead transitions. [2021-03-25 12:22:21,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 668 transitions, 23266 flow [2021-03-25 12:22:21,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 301 transitions. [2021-03-25 12:22:21,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22803030303030303 [2021-03-25 12:22:21,360 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 301 transitions. [2021-03-25 12:22:21,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 301 transitions. [2021-03-25 12:22:21,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:21,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 301 transitions. [2021-03-25 12:22:21,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.1) internal successors, (301), 10 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:21,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:21,361 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:21,361 INFO L185 Difference]: Start difference. First operand has 654 places, 666 transitions, 21925 flow. Second operand 10 states and 301 transitions. [2021-03-25 12:22:21,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 668 transitions, 23266 flow [2021-03-25 12:22:22,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 668 transitions, 23148 flow, removed 15 selfloop flow, removed 9 redundant places. [2021-03-25 12:22:22,667 INFO L241 Difference]: Finished difference. Result has 655 places, 658 transitions, 21580 flow [2021-03-25 12:22:22,667 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=21807, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21580, PETRI_PLACES=655, PETRI_TRANSITIONS=658} [2021-03-25 12:22:22,667 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 608 predicate places. [2021-03-25 12:22:22,667 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:22,668 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 655 places, 658 transitions, 21580 flow [2021-03-25 12:22:22,668 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 655 places, 658 transitions, 21580 flow [2021-03-25 12:22:22,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 646 places, 658 transitions, 21580 flow [2021-03-25 12:22:22,963 INFO L129 PetriNetUnfolder]: 411/1195 cut-off events. [2021-03-25 12:22:22,963 INFO L130 PetriNetUnfolder]: For 217133/217137 co-relation queries the response was YES. [2021-03-25 12:22:22,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23059 conditions, 1195 events. 411/1195 cut-off events. For 217133/217137 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10112 event pairs, 33 based on Foata normal form. 3/1197 useless extension candidates. Maximal degree in co-relation 22776. Up to 363 conditions per place. [2021-03-25 12:22:22,998 INFO L142 LiptonReduction]: Number of co-enabled transitions 988 [2021-03-25 12:22:23,093 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:23,093 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:23,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 426 [2021-03-25 12:22:23,094 INFO L480 AbstractCegarLoop]: Abstraction has has 646 places, 658 transitions, 21580 flow [2021-03-25 12:22:23,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:23,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:23,094 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:23,094 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2021-03-25 12:22:23,094 INFO L428 AbstractCegarLoop]: === Iteration 447 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:23,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:23,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1890197747, now seen corresponding path program 42 times [2021-03-25 12:22:23,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:23,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564831169] [2021-03-25 12:22:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:23,099 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:23,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:23,104 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:23,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:23,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:23,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:23,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:23,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:23,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:23,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:23,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:23,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:23,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:23,159 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:23,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:23,172 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:23,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:23,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564831169] [2021-03-25 12:22:23,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:23,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:23,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686256206] [2021-03-25 12:22:23,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:23,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:23,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:23,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:23,175 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:23,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 658 transitions, 21580 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:23,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:23,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:23,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:23,894 INFO L129 PetriNetUnfolder]: 426/1215 cut-off events. [2021-03-25 12:22:23,894 INFO L130 PetriNetUnfolder]: For 225342/225505 co-relation queries the response was YES. [2021-03-25 12:22:23,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24337 conditions, 1215 events. 426/1215 cut-off events. For 225342/225505 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10014 event pairs, 44 based on Foata normal form. 46/1261 useless extension candidates. Maximal degree in co-relation 24051. Up to 954 conditions per place. [2021-03-25 12:22:23,923 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 614 selfloop transitions, 36 changer transitions 3/661 dead transitions. [2021-03-25 12:22:23,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 661 transitions, 22985 flow [2021-03-25 12:22:23,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2021-03-25 12:22:23,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23106060606060605 [2021-03-25 12:22:23,925 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 305 transitions. [2021-03-25 12:22:23,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 305 transitions. [2021-03-25 12:22:23,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:23,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 305 transitions. [2021-03-25 12:22:23,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.5) internal successors, (305), 10 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:23,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:23,925 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:23,925 INFO L185 Difference]: Start difference. First operand has 646 places, 658 transitions, 21580 flow. Second operand 10 states and 305 transitions. [2021-03-25 12:22:23,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 661 transitions, 22985 flow [2021-03-25 12:22:25,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 661 transitions, 22849 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 12:22:25,301 INFO L241 Difference]: Finished difference. Result has 647 places, 656 transitions, 21466 flow [2021-03-25 12:22:25,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=21446, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21466, PETRI_PLACES=647, PETRI_TRANSITIONS=656} [2021-03-25 12:22:25,301 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 600 predicate places. [2021-03-25 12:22:25,301 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:25,302 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 647 places, 656 transitions, 21466 flow [2021-03-25 12:22:25,302 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 647 places, 656 transitions, 21466 flow [2021-03-25 12:22:25,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 643 places, 656 transitions, 21466 flow [2021-03-25 12:22:25,601 INFO L129 PetriNetUnfolder]: 410/1189 cut-off events. [2021-03-25 12:22:25,601 INFO L130 PetriNetUnfolder]: For 212957/213042 co-relation queries the response was YES. [2021-03-25 12:22:25,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22839 conditions, 1189 events. 410/1189 cut-off events. For 212957/213042 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 10027 event pairs, 36 based on Foata normal form. 16/1202 useless extension candidates. Maximal degree in co-relation 22557. Up to 362 conditions per place. [2021-03-25 12:22:25,636 INFO L142 LiptonReduction]: Number of co-enabled transitions 986 [2021-03-25 12:22:25,682 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:25,682 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:25,682 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 381 [2021-03-25 12:22:25,682 INFO L480 AbstractCegarLoop]: Abstraction has has 643 places, 656 transitions, 21466 flow [2021-03-25 12:22:25,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:25,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:25,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:25,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2021-03-25 12:22:25,682 INFO L428 AbstractCegarLoop]: === Iteration 448 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:25,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:25,683 INFO L82 PathProgramCache]: Analyzing trace with hash -2115549597, now seen corresponding path program 43 times [2021-03-25 12:22:25,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:25,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551057934] [2021-03-25 12:22:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:25,689 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:25,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:25,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:25,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:25,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:25,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:25,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:25,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:25,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:25,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:25,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:25,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:25,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:25,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:25,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:25,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:25,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:25,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:25,754 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:25,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:25,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551057934] [2021-03-25 12:22:25,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:25,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:22:25,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311145272] [2021-03-25 12:22:25,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:22:25,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:25,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:22:25,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:22:25,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:25,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 643 places, 656 transitions, 21466 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:25,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:25,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:25,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:26,506 INFO L129 PetriNetUnfolder]: 425/1214 cut-off events. [2021-03-25 12:22:26,506 INFO L130 PetriNetUnfolder]: For 219561/219641 co-relation queries the response was YES. [2021-03-25 12:22:26,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24191 conditions, 1214 events. 425/1214 cut-off events. For 219561/219641 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9981 event pairs, 46 based on Foata normal form. 32/1245 useless extension candidates. Maximal degree in co-relation 23906. Up to 960 conditions per place. [2021-03-25 12:22:26,528 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 622 selfloop transitions, 27 changer transitions 2/659 dead transitions. [2021-03-25 12:22:26,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 659 transitions, 22835 flow [2021-03-25 12:22:26,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:22:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:22:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 274 transitions. [2021-03-25 12:22:26,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23063973063973064 [2021-03-25 12:22:26,530 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 274 transitions. [2021-03-25 12:22:26,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 274 transitions. [2021-03-25 12:22:26,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:26,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 274 transitions. [2021-03-25 12:22:26,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.444444444444443) internal successors, (274), 9 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:26,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:26,531 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:26,531 INFO L185 Difference]: Start difference. First operand has 643 places, 656 transitions, 21466 flow. Second operand 9 states and 274 transitions. [2021-03-25 12:22:26,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 659 transitions, 22835 flow [2021-03-25 12:22:27,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 659 transitions, 22727 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-25 12:22:27,871 INFO L241 Difference]: Finished difference. Result has 643 places, 655 transitions, 21396 flow [2021-03-25 12:22:27,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=21358, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=21396, PETRI_PLACES=643, PETRI_TRANSITIONS=655} [2021-03-25 12:22:27,871 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 596 predicate places. [2021-03-25 12:22:27,871 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:27,871 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 643 places, 655 transitions, 21396 flow [2021-03-25 12:22:27,871 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 643 places, 655 transitions, 21396 flow [2021-03-25 12:22:27,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 642 places, 655 transitions, 21396 flow [2021-03-25 12:22:28,168 INFO L129 PetriNetUnfolder]: 413/1186 cut-off events. [2021-03-25 12:22:28,168 INFO L130 PetriNetUnfolder]: For 213345/213383 co-relation queries the response was YES. [2021-03-25 12:22:28,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23009 conditions, 1186 events. 413/1186 cut-off events. For 213345/213383 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 9986 event pairs, 36 based on Foata normal form. 1/1182 useless extension candidates. Maximal degree in co-relation 22701. Up to 369 conditions per place. [2021-03-25 12:22:28,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 982 [2021-03-25 12:22:28,250 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:28,250 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:28,250 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 379 [2021-03-25 12:22:28,250 INFO L480 AbstractCegarLoop]: Abstraction has has 642 places, 655 transitions, 21396 flow [2021-03-25 12:22:28,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:28,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:28,251 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:28,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2021-03-25 12:22:28,251 INFO L428 AbstractCegarLoop]: === Iteration 449 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:28,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:28,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1319948523, now seen corresponding path program 44 times [2021-03-25 12:22:28,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:28,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542072787] [2021-03-25 12:22:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:28,259 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:28,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:28,263 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:28,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:28,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:28,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:28,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:28,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:28,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:28,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:28,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:28,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:28,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:28,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:28,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:28,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:28,320 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:28,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:28,334 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:28,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:28,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542072787] [2021-03-25 12:22:28,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:28,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:28,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606855776] [2021-03-25 12:22:28,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:28,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:28,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:28,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:28,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:28,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 655 transitions, 21396 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:28,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:28,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:28,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:29,047 INFO L129 PetriNetUnfolder]: 424/1212 cut-off events. [2021-03-25 12:22:29,048 INFO L130 PetriNetUnfolder]: For 215597/215677 co-relation queries the response was YES. [2021-03-25 12:22:29,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24061 conditions, 1212 events. 424/1212 cut-off events. For 215597/215677 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9966 event pairs, 46 based on Foata normal form. 32/1243 useless extension candidates. Maximal degree in co-relation 23761. Up to 958 conditions per place. [2021-03-25 12:22:29,075 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 621 selfloop transitions, 22 changer transitions 6/657 dead transitions. [2021-03-25 12:22:29,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 657 transitions, 22715 flow [2021-03-25 12:22:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:29,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 299 transitions. [2021-03-25 12:22:29,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2265151515151515 [2021-03-25 12:22:29,076 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 299 transitions. [2021-03-25 12:22:29,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 299 transitions. [2021-03-25 12:22:29,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:29,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 299 transitions. [2021-03-25 12:22:29,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.9) internal successors, (299), 10 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:29,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:29,077 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:29,077 INFO L185 Difference]: Start difference. First operand has 642 places, 655 transitions, 21396 flow. Second operand 10 states and 299 transitions. [2021-03-25 12:22:29,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 657 transitions, 22715 flow [2021-03-25 12:22:30,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 642 places, 657 transitions, 22576 flow, removed 30 selfloop flow, removed 9 redundant places. [2021-03-25 12:22:30,414 INFO L241 Difference]: Finished difference. Result has 643 places, 649 transitions, 21131 flow [2021-03-25 12:22:30,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=21257, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21131, PETRI_PLACES=643, PETRI_TRANSITIONS=649} [2021-03-25 12:22:30,414 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 596 predicate places. [2021-03-25 12:22:30,414 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:30,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 643 places, 649 transitions, 21131 flow [2021-03-25 12:22:30,414 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 643 places, 649 transitions, 21131 flow [2021-03-25 12:22:30,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 635 places, 649 transitions, 21131 flow [2021-03-25 12:22:30,737 INFO L129 PetriNetUnfolder]: 406/1168 cut-off events. [2021-03-25 12:22:30,737 INFO L130 PetriNetUnfolder]: For 211072/211103 co-relation queries the response was YES. [2021-03-25 12:22:30,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22415 conditions, 1168 events. 406/1168 cut-off events. For 211072/211103 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9723 event pairs, 50 based on Foata normal form. 10/1174 useless extension candidates. Maximal degree in co-relation 22136. Up to 354 conditions per place. [2021-03-25 12:22:30,770 INFO L142 LiptonReduction]: Number of co-enabled transitions 974 [2021-03-25 12:22:30,811 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:30,811 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:30,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 397 [2021-03-25 12:22:30,812 INFO L480 AbstractCegarLoop]: Abstraction has has 635 places, 649 transitions, 21131 flow [2021-03-25 12:22:30,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:30,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:30,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:30,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2021-03-25 12:22:30,812 INFO L428 AbstractCegarLoop]: === Iteration 450 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:30,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:30,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1531028869, now seen corresponding path program 45 times [2021-03-25 12:22:30,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:30,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018370873] [2021-03-25 12:22:30,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:30,818 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:30,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:30,822 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:30,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:30,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:30,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:30,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:30,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:30,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:30,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:30,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:30,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:30,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:30,866 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:30,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:30,878 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:30,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:30,891 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:30,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:30,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018370873] [2021-03-25 12:22:30,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:30,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:30,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058050226] [2021-03-25 12:22:30,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:30,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:30,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:30,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:30,894 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:30,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 649 transitions, 21131 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:30,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:30,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:30,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:31,609 INFO L129 PetriNetUnfolder]: 423/1206 cut-off events. [2021-03-25 12:22:31,609 INFO L130 PetriNetUnfolder]: For 213823/213910 co-relation queries the response was YES. [2021-03-25 12:22:31,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23897 conditions, 1206 events. 423/1206 cut-off events. For 213823/213910 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9877 event pairs, 41 based on Foata normal form. 49/1255 useless extension candidates. Maximal degree in co-relation 23615. Up to 944 conditions per place. [2021-03-25 12:22:31,633 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 606 selfloop transitions, 31 changer transitions 6/651 dead transitions. [2021-03-25 12:22:31,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 651 transitions, 22449 flow [2021-03-25 12:22:31,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:31,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 303 transitions. [2021-03-25 12:22:31,635 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22954545454545455 [2021-03-25 12:22:31,635 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 303 transitions. [2021-03-25 12:22:31,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 303 transitions. [2021-03-25 12:22:31,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:31,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 303 transitions. [2021-03-25 12:22:31,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.3) internal successors, (303), 10 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:31,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:31,636 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:31,636 INFO L185 Difference]: Start difference. First operand has 635 places, 649 transitions, 21131 flow. Second operand 10 states and 303 transitions. [2021-03-25 12:22:31,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 651 transitions, 22449 flow [2021-03-25 12:22:32,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 651 transitions, 22234 flow, removed 39 selfloop flow, removed 11 redundant places. [2021-03-25 12:22:32,950 INFO L241 Difference]: Finished difference. Result has 634 places, 643 transitions, 20801 flow [2021-03-25 12:22:32,951 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=20916, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=618, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20801, PETRI_PLACES=634, PETRI_TRANSITIONS=643} [2021-03-25 12:22:32,951 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 587 predicate places. [2021-03-25 12:22:32,951 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:32,951 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 634 places, 643 transitions, 20801 flow [2021-03-25 12:22:32,951 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 634 places, 643 transitions, 20801 flow [2021-03-25 12:22:32,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 631 places, 643 transitions, 20801 flow [2021-03-25 12:22:33,245 INFO L129 PetriNetUnfolder]: 409/1172 cut-off events. [2021-03-25 12:22:33,246 INFO L130 PetriNetUnfolder]: For 208975/209074 co-relation queries the response was YES. [2021-03-25 12:22:33,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22203 conditions, 1172 events. 409/1172 cut-off events. For 208975/209074 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9785 event pairs, 36 based on Foata normal form. 15/1182 useless extension candidates. Maximal degree in co-relation 21928. Up to 354 conditions per place. [2021-03-25 12:22:33,282 INFO L142 LiptonReduction]: Number of co-enabled transitions 970 [2021-03-25 12:22:33,328 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:33,328 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:33,328 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 377 [2021-03-25 12:22:33,328 INFO L480 AbstractCegarLoop]: Abstraction has has 631 places, 643 transitions, 20801 flow [2021-03-25 12:22:33,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:33,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:33,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:33,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2021-03-25 12:22:33,328 INFO L428 AbstractCegarLoop]: === Iteration 451 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:33,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1486819359, now seen corresponding path program 46 times [2021-03-25 12:22:33,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:33,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012542667] [2021-03-25 12:22:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:33,334 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:33,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:33,339 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:33,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:33,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:33,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:33,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:33,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:33,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:33,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:33,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:33,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:33,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:33,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:33,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:33,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:33,395 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:33,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:33,409 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:33,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:33,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012542667] [2021-03-25 12:22:33,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:33,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:33,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693839066] [2021-03-25 12:22:33,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:33,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:33,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:33,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:33,412 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:33,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 643 transitions, 20801 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:33,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:33,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:33,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:34,177 INFO L129 PetriNetUnfolder]: 421/1200 cut-off events. [2021-03-25 12:22:34,177 INFO L130 PetriNetUnfolder]: For 209108/209188 co-relation queries the response was YES. [2021-03-25 12:22:34,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23528 conditions, 1200 events. 421/1200 cut-off events. For 209108/209188 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9850 event pairs, 41 based on Foata normal form. 42/1242 useless extension candidates. Maximal degree in co-relation 23250. Up to 937 conditions per place. [2021-03-25 12:22:34,201 INFO L132 encePairwiseOnDemand]: 116/132 looper letters, 603 selfloop transitions, 31 changer transitions 5/647 dead transitions. [2021-03-25 12:22:34,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 647 transitions, 22192 flow [2021-03-25 12:22:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:34,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2021-03-25 12:22:34,202 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23030303030303031 [2021-03-25 12:22:34,202 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 304 transitions. [2021-03-25 12:22:34,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 304 transitions. [2021-03-25 12:22:34,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:34,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 304 transitions. [2021-03-25 12:22:34,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.4) internal successors, (304), 10 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:34,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:34,203 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:34,203 INFO L185 Difference]: Start difference. First operand has 631 places, 643 transitions, 20801 flow. Second operand 10 states and 304 transitions. [2021-03-25 12:22:34,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 640 places, 647 transitions, 22192 flow [2021-03-25 12:22:35,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 647 transitions, 22086 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-03-25 12:22:35,484 INFO L241 Difference]: Finished difference. Result has 631 places, 639 transitions, 20602 flow [2021-03-25 12:22:35,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=20695, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20602, PETRI_PLACES=631, PETRI_TRANSITIONS=639} [2021-03-25 12:22:35,485 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 584 predicate places. [2021-03-25 12:22:35,485 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:35,485 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 631 places, 639 transitions, 20602 flow [2021-03-25 12:22:35,485 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 631 places, 639 transitions, 20602 flow [2021-03-25 12:22:35,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 627 places, 639 transitions, 20602 flow [2021-03-25 12:22:35,796 INFO L129 PetriNetUnfolder]: 406/1174 cut-off events. [2021-03-25 12:22:35,797 INFO L130 PetriNetUnfolder]: For 199782/199798 co-relation queries the response was YES. [2021-03-25 12:22:35,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22233 conditions, 1174 events. 406/1174 cut-off events. For 199782/199798 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9849 event pairs, 41 based on Foata normal form. 3/1174 useless extension candidates. Maximal degree in co-relation 21957. Up to 353 conditions per place. [2021-03-25 12:22:35,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 966 [2021-03-25 12:22:35,879 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:35,879 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:35,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 394 [2021-03-25 12:22:35,879 INFO L480 AbstractCegarLoop]: Abstraction has has 627 places, 639 transitions, 20602 flow [2021-03-25 12:22:35,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:35,879 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:35,879 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:35,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2021-03-25 12:22:35,879 INFO L428 AbstractCegarLoop]: === Iteration 452 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:35,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:35,880 INFO L82 PathProgramCache]: Analyzing trace with hash 261224565, now seen corresponding path program 47 times [2021-03-25 12:22:35,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:35,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704045781] [2021-03-25 12:22:35,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:35,889 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:35,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:35,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:35,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:35,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:35,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:35,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:35,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:35,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:22:35,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:35,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:35,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:35,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:35,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:35,952 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:35,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:35,966 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:35,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:35,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704045781] [2021-03-25 12:22:35,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:35,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:35,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510111239] [2021-03-25 12:22:35,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:35,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:35,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:35,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:35,970 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:35,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 639 transitions, 20602 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:35,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:35,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:35,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:36,673 INFO L129 PetriNetUnfolder]: 420/1195 cut-off events. [2021-03-25 12:22:36,673 INFO L130 PetriNetUnfolder]: For 208851/208931 co-relation queries the response was YES. [2021-03-25 12:22:36,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23390 conditions, 1195 events. 420/1195 cut-off events. For 208851/208931 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9778 event pairs, 48 based on Foata normal form. 32/1226 useless extension candidates. Maximal degree in co-relation 23111. Up to 944 conditions per place. [2021-03-25 12:22:36,701 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 608 selfloop transitions, 18 changer transitions 7/641 dead transitions. [2021-03-25 12:22:36,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 641 transitions, 21889 flow [2021-03-25 12:22:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 296 transitions. [2021-03-25 12:22:36,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22424242424242424 [2021-03-25 12:22:36,702 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 296 transitions. [2021-03-25 12:22:36,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 296 transitions. [2021-03-25 12:22:36,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:36,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 296 transitions. [2021-03-25 12:22:36,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:36,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:36,703 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:36,703 INFO L185 Difference]: Start difference. First operand has 627 places, 639 transitions, 20602 flow. Second operand 10 states and 296 transitions. [2021-03-25 12:22:36,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 641 transitions, 21889 flow [2021-03-25 12:22:37,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 641 transitions, 21792 flow, removed 4 selfloop flow, removed 11 redundant places. [2021-03-25 12:22:37,963 INFO L241 Difference]: Finished difference. Result has 626 places, 632 transitions, 20310 flow [2021-03-25 12:22:37,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=20505, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20310, PETRI_PLACES=626, PETRI_TRANSITIONS=632} [2021-03-25 12:22:37,964 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 579 predicate places. [2021-03-25 12:22:37,964 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:37,964 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 626 places, 632 transitions, 20310 flow [2021-03-25 12:22:37,964 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 626 places, 632 transitions, 20310 flow [2021-03-25 12:22:37,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 618 places, 632 transitions, 20310 flow [2021-03-25 12:22:38,302 INFO L129 PetriNetUnfolder]: 402/1157 cut-off events. [2021-03-25 12:22:38,302 INFO L130 PetriNetUnfolder]: For 200803/200866 co-relation queries the response was YES. [2021-03-25 12:22:38,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21818 conditions, 1157 events. 402/1157 cut-off events. For 200803/200866 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9598 event pairs, 30 based on Foata normal form. 15/1172 useless extension candidates. Maximal degree in co-relation 21543. Up to 346 conditions per place. [2021-03-25 12:22:38,333 INFO L142 LiptonReduction]: Number of co-enabled transitions 960 [2021-03-25 12:22:38,372 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:38,372 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:38,372 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 408 [2021-03-25 12:22:38,373 INFO L480 AbstractCegarLoop]: Abstraction has has 618 places, 632 transitions, 20310 flow [2021-03-25 12:22:38,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:38,373 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:38,373 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:38,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2021-03-25 12:22:38,373 INFO L428 AbstractCegarLoop]: === Iteration 453 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash 488315739, now seen corresponding path program 48 times [2021-03-25 12:22:38,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:38,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485854864] [2021-03-25 12:22:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:38,379 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:38,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:38,384 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:38,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:38,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:38,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:38,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:38,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:38,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:38,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:38,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:38,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:38,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:38,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:38,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:38,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:38,448 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:38,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:38,453 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:38,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:38,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485854864] [2021-03-25 12:22:38,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:38,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:38,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867838521] [2021-03-25 12:22:38,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:38,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:38,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:38,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:38,456 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 132 [2021-03-25 12:22:38,456 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 632 transitions, 20310 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:38,456 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:38,456 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 132 [2021-03-25 12:22:38,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:39,178 INFO L129 PetriNetUnfolder]: 422/1192 cut-off events. [2021-03-25 12:22:39,179 INFO L130 PetriNetUnfolder]: For 210660/210740 co-relation queries the response was YES. [2021-03-25 12:22:39,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23419 conditions, 1192 events. 422/1192 cut-off events. For 210660/210740 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9691 event pairs, 47 based on Foata normal form. 32/1223 useless extension candidates. Maximal degree in co-relation 23141. Up to 902 conditions per place. [2021-03-25 12:22:39,204 INFO L132 encePairwiseOnDemand]: 118/132 looper letters, 539 selfloop transitions, 91 changer transitions 2/640 dead transitions. [2021-03-25 12:22:39,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 627 places, 640 transitions, 21981 flow [2021-03-25 12:22:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 319 transitions. [2021-03-25 12:22:39,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24166666666666667 [2021-03-25 12:22:39,205 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 319 transitions. [2021-03-25 12:22:39,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 319 transitions. [2021-03-25 12:22:39,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:39,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 319 transitions. [2021-03-25 12:22:39,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.9) internal successors, (319), 10 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:39,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:39,206 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:39,206 INFO L185 Difference]: Start difference. First operand has 618 places, 632 transitions, 20310 flow. Second operand 10 states and 319 transitions. [2021-03-25 12:22:39,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 627 places, 640 transitions, 21981 flow [2021-03-25 12:22:40,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 640 transitions, 21583 flow, removed 85 selfloop flow, removed 20 redundant places. [2021-03-25 12:22:40,402 INFO L241 Difference]: Finished difference. Result has 611 places, 636 transitions, 20382 flow [2021-03-25 12:22:40,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=19914, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20382, PETRI_PLACES=611, PETRI_TRANSITIONS=636} [2021-03-25 12:22:40,402 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 564 predicate places. [2021-03-25 12:22:40,402 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:40,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 636 transitions, 20382 flow [2021-03-25 12:22:40,402 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 636 transitions, 20382 flow [2021-03-25 12:22:40,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 611 places, 636 transitions, 20382 flow [2021-03-25 12:22:40,672 INFO L129 PetriNetUnfolder]: 407/1155 cut-off events. [2021-03-25 12:22:40,673 INFO L130 PetriNetUnfolder]: For 194812/194904 co-relation queries the response was YES. [2021-03-25 12:22:40,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21702 conditions, 1155 events. 407/1155 cut-off events. For 194812/194904 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9559 event pairs, 42 based on Foata normal form. 12/1164 useless extension candidates. Maximal degree in co-relation 21406. Up to 348 conditions per place. [2021-03-25 12:22:40,704 INFO L142 LiptonReduction]: Number of co-enabled transitions 960 [2021-03-25 12:22:40,840 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:40,840 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:22:40,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 438 [2021-03-25 12:22:40,840 INFO L480 AbstractCegarLoop]: Abstraction has has 611 places, 636 transitions, 20388 flow [2021-03-25 12:22:40,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:40,840 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:40,840 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:40,841 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2021-03-25 12:22:40,841 INFO L428 AbstractCegarLoop]: === Iteration 454 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:40,841 INFO L82 PathProgramCache]: Analyzing trace with hash 455610209, now seen corresponding path program 49 times [2021-03-25 12:22:40,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:40,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015098596] [2021-03-25 12:22:40,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:40,846 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:40,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:40,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:40,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:40,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:40,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:40,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:40,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:40,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:40,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:40,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:40,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:40,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:40,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:40,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:40,928 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:40,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:40,943 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:40,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:40,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015098596] [2021-03-25 12:22:40,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:40,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:22:40,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522799503] [2021-03-25 12:22:40,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:22:40,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:40,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:22:40,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:22:40,946 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:40,947 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 636 transitions, 20388 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:40,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:40,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:40,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:41,874 INFO L129 PetriNetUnfolder]: 422/1196 cut-off events. [2021-03-25 12:22:41,874 INFO L130 PetriNetUnfolder]: For 197820/197900 co-relation queries the response was YES. [2021-03-25 12:22:41,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23184 conditions, 1196 events. 422/1196 cut-off events. For 197820/197900 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9779 event pairs, 45 based on Foata normal form. 42/1238 useless extension candidates. Maximal degree in co-relation 22896. Up to 860 conditions per place. [2021-03-25 12:22:41,898 INFO L132 encePairwiseOnDemand]: 116/133 looper letters, 484 selfloop transitions, 145 changer transitions 4/641 dead transitions. [2021-03-25 12:22:41,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 641 transitions, 21845 flow [2021-03-25 12:22:41,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:22:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:22:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 408 transitions. [2021-03-25 12:22:41,899 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23597455176402546 [2021-03-25 12:22:41,899 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 408 transitions. [2021-03-25 12:22:41,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 408 transitions. [2021-03-25 12:22:41,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:41,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 408 transitions. [2021-03-25 12:22:41,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.384615384615383) internal successors, (408), 13 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:41,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:41,900 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:41,900 INFO L185 Difference]: Start difference. First operand has 611 places, 636 transitions, 20388 flow. Second operand 13 states and 408 transitions. [2021-03-25 12:22:41,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 641 transitions, 21845 flow [2021-03-25 12:22:43,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 641 transitions, 21427 flow, removed 91 selfloop flow, removed 8 redundant places. [2021-03-25 12:22:43,059 INFO L241 Difference]: Finished difference. Result has 618 places, 635 transitions, 20369 flow [2021-03-25 12:22:43,060 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19970, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20369, PETRI_PLACES=618, PETRI_TRANSITIONS=635} [2021-03-25 12:22:43,060 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 571 predicate places. [2021-03-25 12:22:43,060 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:43,060 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 618 places, 635 transitions, 20369 flow [2021-03-25 12:22:43,060 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 618 places, 635 transitions, 20369 flow [2021-03-25 12:22:43,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 615 places, 635 transitions, 20369 flow [2021-03-25 12:22:43,331 INFO L129 PetriNetUnfolder]: 405/1169 cut-off events. [2021-03-25 12:22:43,332 INFO L130 PetriNetUnfolder]: For 191037/191059 co-relation queries the response was YES. [2021-03-25 12:22:43,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21829 conditions, 1169 events. 405/1169 cut-off events. For 191037/191059 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9745 event pairs, 37 based on Foata normal form. 5/1172 useless extension candidates. Maximal degree in co-relation 21532. Up to 351 conditions per place. [2021-03-25 12:22:43,365 INFO L142 LiptonReduction]: Number of co-enabled transitions 962 [2021-03-25 12:22:43,407 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:43,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:43,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 347 [2021-03-25 12:22:43,408 INFO L480 AbstractCegarLoop]: Abstraction has has 615 places, 635 transitions, 20369 flow [2021-03-25 12:22:43,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:43,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:43,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:43,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2021-03-25 12:22:43,408 INFO L428 AbstractCegarLoop]: === Iteration 455 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:43,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:43,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1689106483, now seen corresponding path program 1 times [2021-03-25 12:22:43,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:43,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327090526] [2021-03-25 12:22:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:43,413 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:43,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:43,418 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:43,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:43,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:43,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:43,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:43,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:43,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:43,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:43,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:43,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:43,467 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:43,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:43,481 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:43,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:43,486 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:43,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:43,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327090526] [2021-03-25 12:22:43,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:43,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:43,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017134717] [2021-03-25 12:22:43,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:43,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:43,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:43,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:43,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:43,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 635 transitions, 20369 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:43,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:43,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:43,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:44,252 INFO L129 PetriNetUnfolder]: 421/1194 cut-off events. [2021-03-25 12:22:44,252 INFO L130 PetriNetUnfolder]: For 198516/198678 co-relation queries the response was YES. [2021-03-25 12:22:44,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23215 conditions, 1194 events. 421/1194 cut-off events. For 198516/198678 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9765 event pairs, 47 based on Foata normal form. 36/1229 useless extension candidates. Maximal degree in co-relation 22926. Up to 903 conditions per place. [2021-03-25 12:22:44,278 INFO L132 encePairwiseOnDemand]: 118/133 looper letters, 538 selfloop transitions, 92 changer transitions 2/640 dead transitions. [2021-03-25 12:22:44,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 640 transitions, 21875 flow [2021-03-25 12:22:44,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 319 transitions. [2021-03-25 12:22:44,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23984962406015037 [2021-03-25 12:22:44,279 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 319 transitions. [2021-03-25 12:22:44,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 319 transitions. [2021-03-25 12:22:44,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:44,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 319 transitions. [2021-03-25 12:22:44,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.9) internal successors, (319), 10 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:44,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:44,280 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:44,280 INFO L185 Difference]: Start difference. First operand has 615 places, 635 transitions, 20369 flow. Second operand 10 states and 319 transitions. [2021-03-25 12:22:44,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 640 transitions, 21875 flow [2021-03-25 12:22:45,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 640 transitions, 21469 flow, removed 16 selfloop flow, removed 13 redundant places. [2021-03-25 12:22:45,580 INFO L241 Difference]: Finished difference. Result has 614 places, 636 transitions, 20282 flow [2021-03-25 12:22:45,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19971, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20282, PETRI_PLACES=614, PETRI_TRANSITIONS=636} [2021-03-25 12:22:45,580 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 567 predicate places. [2021-03-25 12:22:45,580 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:45,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 614 places, 636 transitions, 20282 flow [2021-03-25 12:22:45,580 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 614 places, 636 transitions, 20282 flow [2021-03-25 12:22:45,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 613 places, 636 transitions, 20282 flow [2021-03-25 12:22:45,900 INFO L129 PetriNetUnfolder]: 405/1167 cut-off events. [2021-03-25 12:22:45,900 INFO L130 PetriNetUnfolder]: For 189436/189528 co-relation queries the response was YES. [2021-03-25 12:22:45,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21725 conditions, 1167 events. 405/1167 cut-off events. For 189436/189528 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9804 event pairs, 38 based on Foata normal form. 12/1177 useless extension candidates. Maximal degree in co-relation 21429. Up to 349 conditions per place. [2021-03-25 12:22:45,937 INFO L142 LiptonReduction]: Number of co-enabled transitions 962 [2021-03-25 12:22:45,979 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:45,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:45,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 399 [2021-03-25 12:22:45,979 INFO L480 AbstractCegarLoop]: Abstraction has has 613 places, 636 transitions, 20282 flow [2021-03-25 12:22:45,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:45,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:45,979 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:45,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2021-03-25 12:22:45,979 INFO L428 AbstractCegarLoop]: === Iteration 456 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:45,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:45,980 INFO L82 PathProgramCache]: Analyzing trace with hash 968424737, now seen corresponding path program 2 times [2021-03-25 12:22:45,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:45,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038930305] [2021-03-25 12:22:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:45,985 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:45,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:45,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:45,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:45,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:45,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:46,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:46,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:46,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:46,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:46,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:46,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:46,042 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:46,056 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:22:46,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:46,071 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:46,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038930305] [2021-03-25 12:22:46,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:46,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:22:46,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187908183] [2021-03-25 12:22:46,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:22:46,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:46,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:22:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:22:46,075 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:46,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 636 transitions, 20282 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:46,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:46,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:46,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:46,885 INFO L129 PetriNetUnfolder]: 420/1192 cut-off events. [2021-03-25 12:22:46,885 INFO L130 PetriNetUnfolder]: For 195665/195745 co-relation queries the response was YES. [2021-03-25 12:22:46,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23048 conditions, 1192 events. 420/1192 cut-off events. For 195665/195745 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9738 event pairs, 48 based on Foata normal form. 32/1223 useless extension candidates. Maximal degree in co-relation 22760. Up to 902 conditions per place. [2021-03-25 12:22:46,913 INFO L132 encePairwiseOnDemand]: 118/133 looper letters, 538 selfloop transitions, 90 changer transitions 3/639 dead transitions. [2021-03-25 12:22:46,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 639 transitions, 21632 flow [2021-03-25 12:22:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:22:46,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:22:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 344 transitions. [2021-03-25 12:22:46,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23513328776486672 [2021-03-25 12:22:46,915 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 344 transitions. [2021-03-25 12:22:46,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 344 transitions. [2021-03-25 12:22:46,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:46,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 344 transitions. [2021-03-25 12:22:46,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:46,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:46,916 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:46,916 INFO L185 Difference]: Start difference. First operand has 613 places, 636 transitions, 20282 flow. Second operand 11 states and 344 transitions. [2021-03-25 12:22:46,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 639 transitions, 21632 flow [2021-03-25 12:22:48,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 639 transitions, 21370 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-03-25 12:22:48,100 INFO L241 Difference]: Finished difference. Result has 616 places, 634 transitions, 20168 flow [2021-03-25 12:22:48,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=20020, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20168, PETRI_PLACES=616, PETRI_TRANSITIONS=634} [2021-03-25 12:22:48,100 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 569 predicate places. [2021-03-25 12:22:48,100 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:48,100 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 616 places, 634 transitions, 20168 flow [2021-03-25 12:22:48,100 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 616 places, 634 transitions, 20168 flow [2021-03-25 12:22:48,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 614 places, 634 transitions, 20168 flow [2021-03-25 12:22:48,392 INFO L129 PetriNetUnfolder]: 405/1165 cut-off events. [2021-03-25 12:22:48,392 INFO L130 PetriNetUnfolder]: For 188498/188517 co-relation queries the response was YES. [2021-03-25 12:22:48,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21773 conditions, 1165 events. 405/1165 cut-off events. For 188498/188517 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9718 event pairs, 35 based on Foata normal form. 3/1166 useless extension candidates. Maximal degree in co-relation 21505. Up to 352 conditions per place. [2021-03-25 12:22:48,429 INFO L142 LiptonReduction]: Number of co-enabled transitions 962 [2021-03-25 12:22:48,474 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:48,474 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:48,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 374 [2021-03-25 12:22:48,474 INFO L480 AbstractCegarLoop]: Abstraction has has 614 places, 634 transitions, 20168 flow [2021-03-25 12:22:48,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:48,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:48,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:48,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2021-03-25 12:22:48,474 INFO L428 AbstractCegarLoop]: === Iteration 457 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:48,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:48,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1069368223, now seen corresponding path program 50 times [2021-03-25 12:22:48,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:48,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881831851] [2021-03-25 12:22:48,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:48,480 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:48,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:48,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:48,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:48,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:48,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:48,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:48,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:48,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:48,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:48,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:48,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:48,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:48,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:48,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:48,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:48,566 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:48,572 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:48,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881831851] [2021-03-25 12:22:48,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:48,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:22:48,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132455494] [2021-03-25 12:22:48,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:22:48,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:48,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:22:48,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:22:48,580 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:48,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 634 transitions, 20168 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:48,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:48,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:48,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:49,407 INFO L129 PetriNetUnfolder]: 420/1193 cut-off events. [2021-03-25 12:22:49,407 INFO L130 PetriNetUnfolder]: For 196347/196427 co-relation queries the response was YES. [2021-03-25 12:22:49,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23078 conditions, 1193 events. 420/1193 cut-off events. For 196347/196427 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9733 event pairs, 49 based on Foata normal form. 32/1224 useless extension candidates. Maximal degree in co-relation 22807. Up to 900 conditions per place. [2021-03-25 12:22:49,429 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 535 selfloop transitions, 96 changer transitions 2/641 dead transitions. [2021-03-25 12:22:49,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 641 transitions, 21767 flow [2021-03-25 12:22:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:22:49,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:22:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 374 transitions. [2021-03-25 12:22:49,431 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23433583959899748 [2021-03-25 12:22:49,431 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 374 transitions. [2021-03-25 12:22:49,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 374 transitions. [2021-03-25 12:22:49,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:49,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 374 transitions. [2021-03-25 12:22:49,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.166666666666668) internal successors, (374), 12 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:49,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:49,432 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:49,432 INFO L185 Difference]: Start difference. First operand has 614 places, 634 transitions, 20168 flow. Second operand 12 states and 374 transitions. [2021-03-25 12:22:49,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 641 transitions, 21767 flow [2021-03-25 12:22:50,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 641 transitions, 21559 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-25 12:22:50,526 INFO L241 Difference]: Finished difference. Result has 617 places, 637 transitions, 20364 flow [2021-03-25 12:22:50,526 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19962, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20364, PETRI_PLACES=617, PETRI_TRANSITIONS=637} [2021-03-25 12:22:50,526 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 570 predicate places. [2021-03-25 12:22:50,526 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:50,526 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 617 places, 637 transitions, 20364 flow [2021-03-25 12:22:50,526 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 617 places, 637 transitions, 20364 flow [2021-03-25 12:22:50,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 617 places, 637 transitions, 20364 flow [2021-03-25 12:22:50,812 INFO L129 PetriNetUnfolder]: 404/1162 cut-off events. [2021-03-25 12:22:50,813 INFO L130 PetriNetUnfolder]: For 193136/193243 co-relation queries the response was YES. [2021-03-25 12:22:50,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21852 conditions, 1162 events. 404/1162 cut-off events. For 193136/193243 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9675 event pairs, 35 based on Foata normal form. 14/1176 useless extension candidates. Maximal degree in co-relation 21555. Up to 350 conditions per place. [2021-03-25 12:22:50,845 INFO L142 LiptonReduction]: Number of co-enabled transitions 962 [2021-03-25 12:22:50,888 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:50,888 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:50,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 362 [2021-03-25 12:22:50,888 INFO L480 AbstractCegarLoop]: Abstraction has has 617 places, 637 transitions, 20364 flow [2021-03-25 12:22:50,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:50,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:50,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:50,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2021-03-25 12:22:50,889 INFO L428 AbstractCegarLoop]: === Iteration 458 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:50,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:50,889 INFO L82 PathProgramCache]: Analyzing trace with hash 585850151, now seen corresponding path program 51 times [2021-03-25 12:22:50,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:50,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626640538] [2021-03-25 12:22:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:50,895 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:50,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:50,900 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:50,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:50,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:50,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:50,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:50,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:50,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:50,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:50,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:50,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:50,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:50,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:50,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:50,978 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:22:50,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:50,983 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:50,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:50,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626640538] [2021-03-25 12:22:50,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:50,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:22:50,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271337565] [2021-03-25 12:22:50,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:22:50,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:50,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:22:50,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:22:50,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:50,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 637 transitions, 20364 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:50,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:50,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:50,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:51,818 INFO L129 PetriNetUnfolder]: 420/1196 cut-off events. [2021-03-25 12:22:51,818 INFO L130 PetriNetUnfolder]: For 198713/198793 co-relation queries the response was YES. [2021-03-25 12:22:51,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23246 conditions, 1196 events. 420/1196 cut-off events. For 198713/198793 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 9788 event pairs, 48 based on Foata normal form. 32/1227 useless extension candidates. Maximal degree in co-relation 22957. Up to 886 conditions per place. [2021-03-25 12:22:51,844 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 511 selfloop transitions, 123 changer transitions 5/647 dead transitions. [2021-03-25 12:22:51,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 647 transitions, 22118 flow [2021-03-25 12:22:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:22:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:22:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 434 transitions. [2021-03-25 12:22:51,846 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23308270676691728 [2021-03-25 12:22:51,846 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 434 transitions. [2021-03-25 12:22:51,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 434 transitions. [2021-03-25 12:22:51,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:51,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 434 transitions. [2021-03-25 12:22:51,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 31.0) internal successors, (434), 14 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:51,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:51,847 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:51,847 INFO L185 Difference]: Start difference. First operand has 617 places, 637 transitions, 20364 flow. Second operand 14 states and 434 transitions. [2021-03-25 12:22:51,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 647 transitions, 22118 flow [2021-03-25 12:22:53,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 647 transitions, 21777 flow, removed 50 selfloop flow, removed 10 redundant places. [2021-03-25 12:22:53,049 INFO L241 Difference]: Finished difference. Result has 624 places, 640 transitions, 20439 flow [2021-03-25 12:22:53,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=20027, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20439, PETRI_PLACES=624, PETRI_TRANSITIONS=640} [2021-03-25 12:22:53,049 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 577 predicate places. [2021-03-25 12:22:53,049 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:53,049 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 624 places, 640 transitions, 20439 flow [2021-03-25 12:22:53,049 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 624 places, 640 transitions, 20439 flow [2021-03-25 12:22:53,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 624 places, 640 transitions, 20439 flow [2021-03-25 12:22:53,351 INFO L129 PetriNetUnfolder]: 404/1167 cut-off events. [2021-03-25 12:22:53,351 INFO L130 PetriNetUnfolder]: For 190951/190955 co-relation queries the response was YES. [2021-03-25 12:22:53,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21978 conditions, 1167 events. 404/1167 cut-off events. For 190951/190955 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 9742 event pairs, 32 based on Foata normal form. 3/1170 useless extension candidates. Maximal degree in co-relation 21679. Up to 351 conditions per place. [2021-03-25 12:22:53,382 INFO L142 LiptonReduction]: Number of co-enabled transitions 964 [2021-03-25 12:22:53,424 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:53,424 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:53,424 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-25 12:22:53,424 INFO L480 AbstractCegarLoop]: Abstraction has has 624 places, 640 transitions, 20439 flow [2021-03-25 12:22:53,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:53,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:53,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:53,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2021-03-25 12:22:53,424 INFO L428 AbstractCegarLoop]: === Iteration 459 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:53,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:53,425 INFO L82 PathProgramCache]: Analyzing trace with hash -748194677, now seen corresponding path program 52 times [2021-03-25 12:22:53,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:53,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760687921] [2021-03-25 12:22:53,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:53,430 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:53,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:53,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:53,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:53,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:53,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:53,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:53,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:53,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:53,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:53,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:53,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:53,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:53,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:53,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:53,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:53,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:53,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:53,526 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:53,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:53,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760687921] [2021-03-25 12:22:53,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:53,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:22:53,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235552075] [2021-03-25 12:22:53,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:22:53,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:53,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:22:53,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:22:53,530 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:53,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 640 transitions, 20439 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:53,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:53,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:53,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:54,364 INFO L129 PetriNetUnfolder]: 418/1189 cut-off events. [2021-03-25 12:22:54,364 INFO L130 PetriNetUnfolder]: For 199454/199541 co-relation queries the response was YES. [2021-03-25 12:22:54,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23128 conditions, 1189 events. 418/1189 cut-off events. For 199454/199541 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 9739 event pairs, 42 based on Foata normal form. 49/1238 useless extension candidates. Maximal degree in co-relation 22837. Up to 858 conditions per place. [2021-03-25 12:22:54,389 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 486 selfloop transitions, 139 changer transitions 10/643 dead transitions. [2021-03-25 12:22:54,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 643 transitions, 21851 flow [2021-03-25 12:22:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:22:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:22:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 353 transitions. [2021-03-25 12:22:54,391 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24128503075871496 [2021-03-25 12:22:54,391 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 353 transitions. [2021-03-25 12:22:54,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 353 transitions. [2021-03-25 12:22:54,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:54,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 353 transitions. [2021-03-25 12:22:54,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.09090909090909) internal successors, (353), 11 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:54,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:54,392 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:54,392 INFO L185 Difference]: Start difference. First operand has 624 places, 640 transitions, 20439 flow. Second operand 11 states and 353 transitions. [2021-03-25 12:22:54,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 643 transitions, 21851 flow [2021-03-25 12:22:55,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 643 transitions, 21489 flow, removed 98 selfloop flow, removed 11 redundant places. [2021-03-25 12:22:55,508 INFO L241 Difference]: Finished difference. Result has 625 places, 631 transitions, 20375 flow [2021-03-25 12:22:55,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=20083, PETRI_DIFFERENCE_MINUEND_PLACES=613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20375, PETRI_PLACES=625, PETRI_TRANSITIONS=631} [2021-03-25 12:22:55,508 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 578 predicate places. [2021-03-25 12:22:55,508 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:55,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 625 places, 631 transitions, 20375 flow [2021-03-25 12:22:55,509 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 625 places, 631 transitions, 20375 flow [2021-03-25 12:22:55,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 620 places, 631 transitions, 20375 flow [2021-03-25 12:22:55,782 INFO L129 PetriNetUnfolder]: 400/1150 cut-off events. [2021-03-25 12:22:55,782 INFO L130 PetriNetUnfolder]: For 188162/188197 co-relation queries the response was YES. [2021-03-25 12:22:55,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21661 conditions, 1150 events. 400/1150 cut-off events. For 188162/188197 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9520 event pairs, 38 based on Foata normal form. 10/1158 useless extension candidates. Maximal degree in co-relation 21363. Up to 346 conditions per place. [2021-03-25 12:22:55,816 INFO L142 LiptonReduction]: Number of co-enabled transitions 962 [2021-03-25 12:22:55,859 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:55,859 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:55,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 351 [2021-03-25 12:22:55,859 INFO L480 AbstractCegarLoop]: Abstraction has has 620 places, 631 transitions, 20375 flow [2021-03-25 12:22:55,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:55,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:55,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:55,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2021-03-25 12:22:55,859 INFO L428 AbstractCegarLoop]: === Iteration 460 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:55,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:55,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1526047631, now seen corresponding path program 53 times [2021-03-25 12:22:55,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:55,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481547634] [2021-03-25 12:22:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:55,865 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:55,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:55,870 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:55,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:55,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:55,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:55,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:55,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:55,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:55,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:55,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:55,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:55,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:55,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:55,921 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:22:55,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:22:55,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:55,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:55,939 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:55,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:55,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481547634] [2021-03-25 12:22:55,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:55,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:22:55,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461774599] [2021-03-25 12:22:55,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:22:55,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:55,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:22:55,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:22:55,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:55,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 631 transitions, 20375 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:55,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:55,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:55,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:56,752 INFO L129 PetriNetUnfolder]: 415/1178 cut-off events. [2021-03-25 12:22:56,752 INFO L130 PetriNetUnfolder]: For 199569/199649 co-relation queries the response was YES. [2021-03-25 12:22:56,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23013 conditions, 1178 events. 415/1178 cut-off events. For 199569/199649 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9609 event pairs, 42 based on Foata normal form. 42/1220 useless extension candidates. Maximal degree in co-relation 22722. Up to 878 conditions per place. [2021-03-25 12:22:56,776 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 510 selfloop transitions, 113 changer transitions 3/634 dead transitions. [2021-03-25 12:22:56,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 629 places, 634 transitions, 21765 flow [2021-03-25 12:22:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:22:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:22:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 322 transitions. [2021-03-25 12:22:56,777 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24210526315789474 [2021-03-25 12:22:56,777 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 322 transitions. [2021-03-25 12:22:56,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 322 transitions. [2021-03-25 12:22:56,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:56,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 322 transitions. [2021-03-25 12:22:56,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:56,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:56,778 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:56,778 INFO L185 Difference]: Start difference. First operand has 620 places, 631 transitions, 20375 flow. Second operand 10 states and 322 transitions. [2021-03-25 12:22:56,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 629 places, 634 transitions, 21765 flow [2021-03-25 12:22:57,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 634 transitions, 21235 flow, removed 15 selfloop flow, removed 17 redundant places. [2021-03-25 12:22:57,887 INFO L241 Difference]: Finished difference. Result has 614 places, 629 transitions, 20156 flow [2021-03-25 12:22:57,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19849, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20156, PETRI_PLACES=614, PETRI_TRANSITIONS=629} [2021-03-25 12:22:57,887 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 567 predicate places. [2021-03-25 12:22:57,887 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:22:57,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 614 places, 629 transitions, 20156 flow [2021-03-25 12:22:57,888 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 614 places, 629 transitions, 20156 flow [2021-03-25 12:22:57,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 614 places, 629 transitions, 20156 flow [2021-03-25 12:22:58,157 INFO L129 PetriNetUnfolder]: 401/1153 cut-off events. [2021-03-25 12:22:58,158 INFO L130 PetriNetUnfolder]: For 187169/187188 co-relation queries the response was YES. [2021-03-25 12:22:58,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21630 conditions, 1153 events. 401/1153 cut-off events. For 187169/187188 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9565 event pairs, 41 based on Foata normal form. 3/1154 useless extension candidates. Maximal degree in co-relation 21336. Up to 350 conditions per place. [2021-03-25 12:22:58,190 INFO L142 LiptonReduction]: Number of co-enabled transitions 960 [2021-03-25 12:22:58,232 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:22:58,232 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:22:58,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 345 [2021-03-25 12:22:58,232 INFO L480 AbstractCegarLoop]: Abstraction has has 614 places, 629 transitions, 20156 flow [2021-03-25 12:22:58,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:58,232 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:22:58,232 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:22:58,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2021-03-25 12:22:58,233 INFO L428 AbstractCegarLoop]: === Iteration 461 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:22:58,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:22:58,233 INFO L82 PathProgramCache]: Analyzing trace with hash 579021681, now seen corresponding path program 54 times [2021-03-25 12:22:58,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:22:58,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965428141] [2021-03-25 12:22:58,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:22:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:22:58,248 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:22:58,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:22:58,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:22:58,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:22:58,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:58,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:58,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:58,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:58,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:58,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:58,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:58,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:22:58,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:22:58,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:58,352 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:22:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:22:58,375 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:22:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:22:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:22:58,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965428141] [2021-03-25 12:22:58,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:22:58,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:22:58,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301641565] [2021-03-25 12:22:58,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:22:58,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:22:58,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:22:58,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:22:58,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:22:58,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 629 transitions, 20156 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:58,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:22:58,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:22:58,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:22:59,237 INFO L129 PetriNetUnfolder]: 414/1177 cut-off events. [2021-03-25 12:22:59,237 INFO L130 PetriNetUnfolder]: For 197902/197982 co-relation queries the response was YES. [2021-03-25 12:22:59,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22867 conditions, 1177 events. 414/1177 cut-off events. For 197902/197982 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 9591 event pairs, 42 based on Foata normal form. 42/1219 useless extension candidates. Maximal degree in co-relation 22580. Up to 864 conditions per place. [2021-03-25 12:22:59,262 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 495 selfloop transitions, 128 changer transitions 3/634 dead transitions. [2021-03-25 12:22:59,262 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 627 places, 634 transitions, 21681 flow [2021-03-25 12:22:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:22:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:22:59,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 430 transitions. [2021-03-25 12:22:59,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23093447905477982 [2021-03-25 12:22:59,263 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 430 transitions. [2021-03-25 12:22:59,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 430 transitions. [2021-03-25 12:22:59,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:22:59,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 430 transitions. [2021-03-25 12:22:59,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.714285714285715) internal successors, (430), 14 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:59,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:59,264 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:22:59,264 INFO L185 Difference]: Start difference. First operand has 614 places, 629 transitions, 20156 flow. Second operand 14 states and 430 transitions. [2021-03-25 12:22:59,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 627 places, 634 transitions, 21681 flow [2021-03-25 12:23:00,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 634 transitions, 21305 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-03-25 12:23:00,346 INFO L241 Difference]: Finished difference. Result has 618 places, 629 transitions, 20182 flow [2021-03-25 12:23:00,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19784, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20182, PETRI_PLACES=618, PETRI_TRANSITIONS=629} [2021-03-25 12:23:00,347 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 571 predicate places. [2021-03-25 12:23:00,347 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:00,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 618 places, 629 transitions, 20182 flow [2021-03-25 12:23:00,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 618 places, 629 transitions, 20182 flow [2021-03-25 12:23:00,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 617 places, 629 transitions, 20182 flow [2021-03-25 12:23:00,645 INFO L129 PetriNetUnfolder]: 398/1151 cut-off events. [2021-03-25 12:23:00,647 INFO L130 PetriNetUnfolder]: For 189974/189996 co-relation queries the response was YES. [2021-03-25 12:23:00,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21503 conditions, 1151 events. 398/1151 cut-off events. For 189974/189996 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9552 event pairs, 42 based on Foata normal form. 5/1154 useless extension candidates. Maximal degree in co-relation 21208. Up to 350 conditions per place. [2021-03-25 12:23:00,687 INFO L142 LiptonReduction]: Number of co-enabled transitions 960 [2021-03-25 12:23:00,726 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:00,726 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:00,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 379 [2021-03-25 12:23:00,726 INFO L480 AbstractCegarLoop]: Abstraction has has 617 places, 629 transitions, 20182 flow [2021-03-25 12:23:00,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:00,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:00,726 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:00,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2021-03-25 12:23:00,727 INFO L428 AbstractCegarLoop]: === Iteration 462 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:00,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:00,727 INFO L82 PathProgramCache]: Analyzing trace with hash 881307555, now seen corresponding path program 55 times [2021-03-25 12:23:00,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:00,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355572741] [2021-03-25 12:23:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:00,732 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:00,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:00,737 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:00,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:00,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:00,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:00,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:00,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:00,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:00,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:00,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:00,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:00,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:00,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:00,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:23:00,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:00,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:00,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:00,818 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:00,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:00,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355572741] [2021-03-25 12:23:00,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:00,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:00,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676953941] [2021-03-25 12:23:00,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:00,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:00,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:00,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:00,821 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:00,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 629 transitions, 20182 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:00,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:00,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:00,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:01,719 INFO L129 PetriNetUnfolder]: 412/1175 cut-off events. [2021-03-25 12:23:01,719 INFO L130 PetriNetUnfolder]: For 200017/200179 co-relation queries the response was YES. [2021-03-25 12:23:01,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22805 conditions, 1175 events. 412/1175 cut-off events. For 200017/200179 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 9608 event pairs, 46 based on Foata normal form. 46/1221 useless extension candidates. Maximal degree in co-relation 22518. Up to 874 conditions per place. [2021-03-25 12:23:01,743 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 507 selfloop transitions, 114 changer transitions 3/632 dead transitions. [2021-03-25 12:23:01,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 632 transitions, 21568 flow [2021-03-25 12:23:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:01,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:23:01,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23558897243107768 [2021-03-25 12:23:01,745 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:23:01,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:23:01,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:01,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:23:01,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:01,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:01,746 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:01,746 INFO L185 Difference]: Start difference. First operand has 617 places, 629 transitions, 20182 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:23:01,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 632 transitions, 21568 flow [2021-03-25 12:23:03,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 632 transitions, 21195 flow, removed 74 selfloop flow, removed 10 redundant places. [2021-03-25 12:23:03,040 INFO L241 Difference]: Finished difference. Result has 620 places, 627 transitions, 20114 flow [2021-03-25 12:23:03,040 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19813, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20114, PETRI_PLACES=620, PETRI_TRANSITIONS=627} [2021-03-25 12:23:03,040 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 573 predicate places. [2021-03-25 12:23:03,040 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:03,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 620 places, 627 transitions, 20114 flow [2021-03-25 12:23:03,040 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 620 places, 627 transitions, 20114 flow [2021-03-25 12:23:03,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 618 places, 627 transitions, 20114 flow [2021-03-25 12:23:03,320 INFO L129 PetriNetUnfolder]: 395/1148 cut-off events. [2021-03-25 12:23:03,320 INFO L130 PetriNetUnfolder]: For 185064/185174 co-relation queries the response was YES. [2021-03-25 12:23:03,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21357 conditions, 1148 events. 395/1148 cut-off events. For 185064/185174 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 9551 event pairs, 34 based on Foata normal form. 14/1161 useless extension candidates. Maximal degree in co-relation 21063. Up to 342 conditions per place. [2021-03-25 12:23:03,352 INFO L142 LiptonReduction]: Number of co-enabled transitions 956 [2021-03-25 12:23:03,394 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:03,394 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:03,394 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 354 [2021-03-25 12:23:03,395 INFO L480 AbstractCegarLoop]: Abstraction has has 618 places, 627 transitions, 20114 flow [2021-03-25 12:23:03,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:03,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:03,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:03,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2021-03-25 12:23:03,395 INFO L428 AbstractCegarLoop]: === Iteration 463 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:03,395 INFO L82 PathProgramCache]: Analyzing trace with hash -546545725, now seen corresponding path program 56 times [2021-03-25 12:23:03,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:03,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864905805] [2021-03-25 12:23:03,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:03,401 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:03,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:03,405 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:03,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:03,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:03,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:03,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:03,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:03,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:03,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:03,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:03,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:03,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:03,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:03,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:03,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:03,486 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:03,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:03,502 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:03,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:03,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864905805] [2021-03-25 12:23:03,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:03,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:03,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492092342] [2021-03-25 12:23:03,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:03,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:03,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:03,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:03,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:03,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 627 transitions, 20114 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:03,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:03,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:03,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:04,404 INFO L129 PetriNetUnfolder]: 411/1176 cut-off events. [2021-03-25 12:23:04,404 INFO L130 PetriNetUnfolder]: For 196904/196965 co-relation queries the response was YES. [2021-03-25 12:23:04,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22780 conditions, 1176 events. 411/1176 cut-off events. For 196904/196965 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9613 event pairs, 47 based on Foata normal form. 32/1208 useless extension candidates. Maximal degree in co-relation 22494. Up to 871 conditions per place. [2021-03-25 12:23:04,426 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 505 selfloop transitions, 112 changer transitions 7/632 dead transitions. [2021-03-25 12:23:04,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 632 transitions, 21594 flow [2021-03-25 12:23:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:23:04,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:23:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 430 transitions. [2021-03-25 12:23:04,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23093447905477982 [2021-03-25 12:23:04,428 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 430 transitions. [2021-03-25 12:23:04,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 430 transitions. [2021-03-25 12:23:04,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:04,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 430 transitions. [2021-03-25 12:23:04,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.714285714285715) internal successors, (430), 14 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:04,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:04,429 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 133.0) internal successors, (1995), 15 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:04,429 INFO L185 Difference]: Start difference. First operand has 618 places, 627 transitions, 20114 flow. Second operand 14 states and 430 transitions. [2021-03-25 12:23:04,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 632 transitions, 21594 flow [2021-03-25 12:23:05,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 632 transitions, 21271 flow, removed 3 selfloop flow, removed 12 redundant places. [2021-03-25 12:23:05,589 INFO L241 Difference]: Finished difference. Result has 622 places, 623 transitions, 19909 flow [2021-03-25 12:23:05,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19793, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19909, PETRI_PLACES=622, PETRI_TRANSITIONS=623} [2021-03-25 12:23:05,590 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 575 predicate places. [2021-03-25 12:23:05,590 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:05,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 622 places, 623 transitions, 19909 flow [2021-03-25 12:23:05,590 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 622 places, 623 transitions, 19909 flow [2021-03-25 12:23:05,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 617 places, 623 transitions, 19909 flow [2021-03-25 12:23:05,869 INFO L129 PetriNetUnfolder]: 396/1145 cut-off events. [2021-03-25 12:23:05,870 INFO L130 PetriNetUnfolder]: For 186704/186708 co-relation queries the response was YES. [2021-03-25 12:23:05,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21480 conditions, 1145 events. 396/1145 cut-off events. For 186704/186708 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 9481 event pairs, 37 based on Foata normal form. 3/1148 useless extension candidates. Maximal degree in co-relation 21213. Up to 350 conditions per place. [2021-03-25 12:23:05,903 INFO L142 LiptonReduction]: Number of co-enabled transitions 950 [2021-03-25 12:23:05,945 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:05,945 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:05,945 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 355 [2021-03-25 12:23:05,945 INFO L480 AbstractCegarLoop]: Abstraction has has 617 places, 623 transitions, 19909 flow [2021-03-25 12:23:05,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:05,945 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:05,945 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:05,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2021-03-25 12:23:05,945 INFO L428 AbstractCegarLoop]: === Iteration 464 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:05,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1537069325, now seen corresponding path program 57 times [2021-03-25 12:23:05,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:05,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812410794] [2021-03-25 12:23:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:05,951 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:05,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:05,956 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:05,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:05,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:05,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:05,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:05,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:05,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:05,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:05,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:05,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:06,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:06,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:06,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:06,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:06,036 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:06,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:06,042 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:06,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:06,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:06,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812410794] [2021-03-25 12:23:06,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:06,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:06,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091198170] [2021-03-25 12:23:06,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:06,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:06,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:06,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:06,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:06,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 623 transitions, 19909 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:06,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:06,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:06,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:06,831 INFO L129 PetriNetUnfolder]: 410/1170 cut-off events. [2021-03-25 12:23:06,831 INFO L130 PetriNetUnfolder]: For 196140/196220 co-relation queries the response was YES. [2021-03-25 12:23:06,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22677 conditions, 1170 events. 410/1170 cut-off events. For 196140/196220 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9542 event pairs, 49 based on Foata normal form. 32/1201 useless extension candidates. Maximal degree in co-relation 22407. Up to 879 conditions per place. [2021-03-25 12:23:06,856 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 521 selfloop transitions, 99 changer transitions 2/630 dead transitions. [2021-03-25 12:23:06,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 630 transitions, 21508 flow [2021-03-25 12:23:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:06,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 373 transitions. [2021-03-25 12:23:06,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2337092731829574 [2021-03-25 12:23:06,858 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 373 transitions. [2021-03-25 12:23:06,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 373 transitions. [2021-03-25 12:23:06,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:06,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 373 transitions. [2021-03-25 12:23:06,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:06,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:06,859 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:06,859 INFO L185 Difference]: Start difference. First operand has 617 places, 623 transitions, 19909 flow. Second operand 12 states and 373 transitions. [2021-03-25 12:23:06,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 630 transitions, 21508 flow [2021-03-25 12:23:07,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 630 transitions, 21270 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-25 12:23:07,968 INFO L241 Difference]: Finished difference. Result has 619 places, 626 transitions, 20114 flow [2021-03-25 12:23:07,968 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19673, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=524, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20114, PETRI_PLACES=619, PETRI_TRANSITIONS=626} [2021-03-25 12:23:07,968 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 572 predicate places. [2021-03-25 12:23:07,968 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:07,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 619 places, 626 transitions, 20114 flow [2021-03-25 12:23:07,969 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 619 places, 626 transitions, 20114 flow [2021-03-25 12:23:07,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 619 places, 626 transitions, 20114 flow [2021-03-25 12:23:08,279 INFO L129 PetriNetUnfolder]: 393/1135 cut-off events. [2021-03-25 12:23:08,279 INFO L130 PetriNetUnfolder]: For 188016/188133 co-relation queries the response was YES. [2021-03-25 12:23:08,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21273 conditions, 1135 events. 393/1135 cut-off events. For 188016/188133 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 9389 event pairs, 39 based on Foata normal form. 17/1151 useless extension candidates. Maximal degree in co-relation 20978. Up to 343 conditions per place. [2021-03-25 12:23:08,308 INFO L142 LiptonReduction]: Number of co-enabled transitions 950 [2021-03-25 12:23:08,349 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:08,349 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:08,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 381 [2021-03-25 12:23:08,350 INFO L480 AbstractCegarLoop]: Abstraction has has 619 places, 626 transitions, 20114 flow [2021-03-25 12:23:08,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:08,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:08,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:08,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2021-03-25 12:23:08,350 INFO L428 AbstractCegarLoop]: === Iteration 465 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:08,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:08,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1928837399, now seen corresponding path program 58 times [2021-03-25 12:23:08,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:08,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503812999] [2021-03-25 12:23:08,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:08,357 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:08,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:08,362 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:08,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:08,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:08,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:08,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:08,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:08,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:08,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:08,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:08,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:08,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:08,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:08,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:08,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:08,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:08,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:08,456 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:08,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:08,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503812999] [2021-03-25 12:23:08,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:08,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:08,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310055135] [2021-03-25 12:23:08,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:08,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:08,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:08,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:08,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:08,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 626 transitions, 20114 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:08,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:08,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:08,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:09,288 INFO L129 PetriNetUnfolder]: 409/1169 cut-off events. [2021-03-25 12:23:09,288 INFO L130 PetriNetUnfolder]: For 196152/196232 co-relation queries the response was YES. [2021-03-25 12:23:09,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22702 conditions, 1169 events. 409/1169 cut-off events. For 196152/196232 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 9549 event pairs, 43 based on Foata normal form. 42/1211 useless extension candidates. Maximal degree in co-relation 22415. Up to 846 conditions per place. [2021-03-25 12:23:09,313 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 477 selfloop transitions, 140 changer transitions 4/629 dead transitions. [2021-03-25 12:23:09,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 629 places, 629 transitions, 21492 flow [2021-03-25 12:23:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 350 transitions. [2021-03-25 12:23:09,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23923444976076555 [2021-03-25 12:23:09,315 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 350 transitions. [2021-03-25 12:23:09,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 350 transitions. [2021-03-25 12:23:09,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:09,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 350 transitions. [2021-03-25 12:23:09,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:09,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:09,316 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:09,316 INFO L185 Difference]: Start difference. First operand has 619 places, 626 transitions, 20114 flow. Second operand 11 states and 350 transitions. [2021-03-25 12:23:09,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 629 places, 629 transitions, 21492 flow [2021-03-25 12:23:10,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 629 transitions, 21062 flow, removed 94 selfloop flow, removed 10 redundant places. [2021-03-25 12:23:10,418 INFO L241 Difference]: Finished difference. Result has 621 places, 623 transitions, 20065 flow [2021-03-25 12:23:10,418 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19686, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20065, PETRI_PLACES=621, PETRI_TRANSITIONS=623} [2021-03-25 12:23:10,418 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:23:10,418 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:10,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 623 transitions, 20065 flow [2021-03-25 12:23:10,419 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 623 transitions, 20065 flow [2021-03-25 12:23:10,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 619 places, 623 transitions, 20065 flow [2021-03-25 12:23:10,700 INFO L129 PetriNetUnfolder]: 394/1147 cut-off events. [2021-03-25 12:23:10,701 INFO L130 PetriNetUnfolder]: For 181551/181570 co-relation queries the response was YES. [2021-03-25 12:23:10,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21481 conditions, 1147 events. 394/1147 cut-off events. For 181551/181570 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9571 event pairs, 38 based on Foata normal form. 3/1148 useless extension candidates. Maximal degree in co-relation 21194. Up to 349 conditions per place. [2021-03-25 12:23:10,735 INFO L142 LiptonReduction]: Number of co-enabled transitions 950 [2021-03-25 12:23:10,776 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:10,776 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:10,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 358 [2021-03-25 12:23:10,776 INFO L480 AbstractCegarLoop]: Abstraction has has 619 places, 623 transitions, 20065 flow [2021-03-25 12:23:10,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:10,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:10,776 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:10,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2021-03-25 12:23:10,776 INFO L428 AbstractCegarLoop]: === Iteration 466 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:10,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1569774855, now seen corresponding path program 59 times [2021-03-25 12:23:10,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:10,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958807503] [2021-03-25 12:23:10,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:10,784 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:10,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:10,790 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:10,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:10,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:10,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:10,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:10,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:10,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:10,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:10,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:10,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:10,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:10,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:10,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:10,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:10,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:10,885 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:10,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:10,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958807503] [2021-03-25 12:23:10,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:10,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:10,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754091452] [2021-03-25 12:23:10,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:10,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:10,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:10,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:10,888 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:10,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 623 transitions, 20065 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:10,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:10,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:10,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:11,736 INFO L129 PetriNetUnfolder]: 408/1173 cut-off events. [2021-03-25 12:23:11,736 INFO L130 PetriNetUnfolder]: For 195437/195517 co-relation queries the response was YES. [2021-03-25 12:23:11,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22720 conditions, 1173 events. 408/1173 cut-off events. For 195437/195517 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9586 event pairs, 44 based on Foata normal form. 42/1215 useless extension candidates. Maximal degree in co-relation 22433. Up to 857 conditions per place. [2021-03-25 12:23:11,758 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 494 selfloop transitions, 123 changer transitions 3/628 dead transitions. [2021-03-25 12:23:11,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 628 transitions, 21574 flow [2021-03-25 12:23:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:23:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:23:11,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 403 transitions. [2021-03-25 12:23:11,759 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23308270676691728 [2021-03-25 12:23:11,759 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 403 transitions. [2021-03-25 12:23:11,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 403 transitions. [2021-03-25 12:23:11,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:11,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 403 transitions. [2021-03-25 12:23:11,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.0) internal successors, (403), 13 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:11,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:11,760 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:11,760 INFO L185 Difference]: Start difference. First operand has 619 places, 623 transitions, 20065 flow. Second operand 13 states and 403 transitions. [2021-03-25 12:23:11,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 628 transitions, 21574 flow [2021-03-25 12:23:12,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 628 transitions, 21120 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-25 12:23:12,770 INFO L241 Difference]: Finished difference. Result has 619 places, 623 transitions, 20024 flow [2021-03-25 12:23:12,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19619, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20024, PETRI_PLACES=619, PETRI_TRANSITIONS=623} [2021-03-25 12:23:12,770 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 572 predicate places. [2021-03-25 12:23:12,770 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:12,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 619 places, 623 transitions, 20024 flow [2021-03-25 12:23:12,770 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 619 places, 623 transitions, 20024 flow [2021-03-25 12:23:12,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 618 places, 623 transitions, 20024 flow [2021-03-25 12:23:13,032 INFO L129 PetriNetUnfolder]: 393/1149 cut-off events. [2021-03-25 12:23:13,032 INFO L130 PetriNetUnfolder]: For 184026/184054 co-relation queries the response was YES. [2021-03-25 12:23:13,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21420 conditions, 1149 events. 393/1149 cut-off events. For 184026/184054 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9616 event pairs, 45 based on Foata normal form. 8/1155 useless extension candidates. Maximal degree in co-relation 21126. Up to 351 conditions per place. [2021-03-25 12:23:13,064 INFO L142 LiptonReduction]: Number of co-enabled transitions 950 [2021-03-25 12:23:13,104 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:13,104 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:13,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 335 [2021-03-25 12:23:13,105 INFO L480 AbstractCegarLoop]: Abstraction has has 618 places, 623 transitions, 20024 flow [2021-03-25 12:23:13,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:13,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:13,105 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:13,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2021-03-25 12:23:13,105 INFO L428 AbstractCegarLoop]: === Iteration 467 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:13,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:13,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1280225423, now seen corresponding path program 60 times [2021-03-25 12:23:13,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:13,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773046028] [2021-03-25 12:23:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:13,111 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:13,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:13,115 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:13,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:13,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:13,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:13,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:13,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:13,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:13,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:13,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:13,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:13,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:13,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:13,178 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:13,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:13,193 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:13,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:13,198 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:13,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:13,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773046028] [2021-03-25 12:23:13,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:13,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:13,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418338146] [2021-03-25 12:23:13,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:13,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:13,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:13,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:13,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:13,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 623 transitions, 20024 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:13,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:13,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:13,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:14,077 INFO L129 PetriNetUnfolder]: 407/1171 cut-off events. [2021-03-25 12:23:14,077 INFO L130 PetriNetUnfolder]: For 196376/196538 co-relation queries the response was YES. [2021-03-25 12:23:14,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22644 conditions, 1171 events. 407/1171 cut-off events. For 196376/196538 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9595 event pairs, 48 based on Foata normal form. 46/1217 useless extension candidates. Maximal degree in co-relation 22358. Up to 843 conditions per place. [2021-03-25 12:23:14,103 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 471 selfloop transitions, 144 changer transitions 5/628 dead transitions. [2021-03-25 12:23:14,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 629 places, 628 transitions, 21503 flow [2021-03-25 12:23:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 380 transitions. [2021-03-25 12:23:14,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2021-03-25 12:23:14,105 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 380 transitions. [2021-03-25 12:23:14,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 380 transitions. [2021-03-25 12:23:14,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:14,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 380 transitions. [2021-03-25 12:23:14,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.666666666666668) internal successors, (380), 12 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:14,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:14,106 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:14,106 INFO L185 Difference]: Start difference. First operand has 618 places, 623 transitions, 20024 flow. Second operand 12 states and 380 transitions. [2021-03-25 12:23:14,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 629 places, 628 transitions, 21503 flow [2021-03-25 12:23:15,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 628 transitions, 21090 flow, removed 53 selfloop flow, removed 12 redundant places. [2021-03-25 12:23:15,277 INFO L241 Difference]: Finished difference. Result has 619 places, 621 transitions, 19975 flow [2021-03-25 12:23:15,277 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19611, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19975, PETRI_PLACES=619, PETRI_TRANSITIONS=621} [2021-03-25 12:23:15,277 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 572 predicate places. [2021-03-25 12:23:15,277 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:15,277 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 619 places, 621 transitions, 19975 flow [2021-03-25 12:23:15,277 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 619 places, 621 transitions, 19975 flow [2021-03-25 12:23:15,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 616 places, 621 transitions, 19975 flow [2021-03-25 12:23:15,590 INFO L129 PetriNetUnfolder]: 391/1140 cut-off events. [2021-03-25 12:23:15,591 INFO L130 PetriNetUnfolder]: For 182390/182394 co-relation queries the response was YES. [2021-03-25 12:23:15,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21425 conditions, 1140 events. 391/1140 cut-off events. For 182390/182394 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9494 event pairs, 36 based on Foata normal form. 3/1143 useless extension candidates. Maximal degree in co-relation 21152. Up to 350 conditions per place. [2021-03-25 12:23:15,624 INFO L142 LiptonReduction]: Number of co-enabled transitions 948 [2021-03-25 12:23:15,663 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:15,663 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:15,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 387 [2021-03-25 12:23:15,664 INFO L480 AbstractCegarLoop]: Abstraction has has 616 places, 621 transitions, 19975 flow [2021-03-25 12:23:15,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:15,664 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:15,664 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:15,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2021-03-25 12:23:15,664 INFO L428 AbstractCegarLoop]: === Iteration 468 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:15,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:15,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1263922789, now seen corresponding path program 61 times [2021-03-25 12:23:15,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:15,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323742992] [2021-03-25 12:23:15,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:15,670 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:15,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:15,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:15,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:15,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:15,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:15,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:15,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:15,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:15,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:15,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:15,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:15,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:15,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:15,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:15,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:15,754 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:15,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:15,770 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:15,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:15,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323742992] [2021-03-25 12:23:15,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:15,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:15,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089897168] [2021-03-25 12:23:15,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:15,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:15,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:15,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:15,773 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:15,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 621 transitions, 19975 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:15,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:15,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:15,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:16,519 INFO L129 PetriNetUnfolder]: 405/1162 cut-off events. [2021-03-25 12:23:16,519 INFO L130 PetriNetUnfolder]: For 193309/193389 co-relation queries the response was YES. [2021-03-25 12:23:16,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22529 conditions, 1162 events. 405/1162 cut-off events. For 193309/193389 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 9507 event pairs, 50 based on Foata normal form. 32/1193 useless extension candidates. Maximal degree in co-relation 22253. Up to 878 conditions per place. [2021-03-25 12:23:16,544 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 529 selfloop transitions, 83 changer transitions 5/625 dead transitions. [2021-03-25 12:23:16,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 627 places, 625 transitions, 21306 flow [2021-03-25 12:23:16,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 366 transitions. [2021-03-25 12:23:16,545 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22932330827067668 [2021-03-25 12:23:16,545 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 366 transitions. [2021-03-25 12:23:16,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 366 transitions. [2021-03-25 12:23:16,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:16,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 366 transitions. [2021-03-25 12:23:16,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.5) internal successors, (366), 12 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:16,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:16,546 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:16,546 INFO L185 Difference]: Start difference. First operand has 616 places, 621 transitions, 19975 flow. Second operand 12 states and 366 transitions. [2021-03-25 12:23:16,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 627 places, 625 transitions, 21306 flow [2021-03-25 12:23:17,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 625 transitions, 21041 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-03-25 12:23:17,647 INFO L241 Difference]: Finished difference. Result has 621 places, 618 transitions, 19850 flow [2021-03-25 12:23:17,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19710, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19850, PETRI_PLACES=621, PETRI_TRANSITIONS=618} [2021-03-25 12:23:17,647 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:23:17,648 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:17,648 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 618 transitions, 19850 flow [2021-03-25 12:23:17,648 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 618 transitions, 19850 flow [2021-03-25 12:23:17,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 614 places, 618 transitions, 19850 flow [2021-03-25 12:23:17,916 INFO L129 PetriNetUnfolder]: 390/1136 cut-off events. [2021-03-25 12:23:17,916 INFO L130 PetriNetUnfolder]: For 183896/183987 co-relation queries the response was YES. [2021-03-25 12:23:17,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21069 conditions, 1136 events. 390/1136 cut-off events. For 183896/183987 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9469 event pairs, 57 based on Foata normal form. 12/1146 useless extension candidates. Maximal degree in co-relation 20803. Up to 347 conditions per place. [2021-03-25 12:23:17,948 INFO L142 LiptonReduction]: Number of co-enabled transitions 948 [2021-03-25 12:23:17,989 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:17,989 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:17,989 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 341 [2021-03-25 12:23:17,989 INFO L480 AbstractCegarLoop]: Abstraction has has 614 places, 618 transitions, 19850 flow [2021-03-25 12:23:17,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:17,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:17,989 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:17,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2021-03-25 12:23:17,989 INFO L428 AbstractCegarLoop]: === Iteration 469 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:17,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:17,990 INFO L82 PathProgramCache]: Analyzing trace with hash -303066485, now seen corresponding path program 62 times [2021-03-25 12:23:17,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:17,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419031882] [2021-03-25 12:23:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:17,996 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:17,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:18,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:18,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:18,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:18,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:18,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:18,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:18,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:18,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:18,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:18,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:18,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:18,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:18,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:18,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:18,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:18,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:18,063 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:18,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:18,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:18,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419031882] [2021-03-25 12:23:18,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:18,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:23:18,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828785415] [2021-03-25 12:23:18,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:23:18,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:18,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:23:18,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:23:18,066 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:18,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 618 transitions, 19850 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:18,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:18,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:18,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:18,764 INFO L129 PetriNetUnfolder]: 405/1160 cut-off events. [2021-03-25 12:23:18,764 INFO L130 PetriNetUnfolder]: For 192615/192695 co-relation queries the response was YES. [2021-03-25 12:23:18,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22448 conditions, 1160 events. 405/1160 cut-off events. For 192615/192695 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9487 event pairs, 50 based on Foata normal form. 43/1202 useless extension candidates. Maximal degree in co-relation 22179. Up to 871 conditions per place. [2021-03-25 12:23:18,789 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 525 selfloop transitions, 89 changer transitions 2/624 dead transitions. [2021-03-25 12:23:18,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 624 transitions, 21396 flow [2021-03-25 12:23:18,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:23:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:23:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 290 transitions. [2021-03-25 12:23:18,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24227234753550542 [2021-03-25 12:23:18,791 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 290 transitions. [2021-03-25 12:23:18,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 290 transitions. [2021-03-25 12:23:18,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:18,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 290 transitions. [2021-03-25 12:23:18,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.22222222222222) internal successors, (290), 9 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:18,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:18,792 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 133.0) internal successors, (1330), 10 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:18,792 INFO L185 Difference]: Start difference. First operand has 614 places, 618 transitions, 19850 flow. Second operand 9 states and 290 transitions. [2021-03-25 12:23:18,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 624 transitions, 21396 flow [2021-03-25 12:23:19,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 624 transitions, 21171 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 12:23:19,852 INFO L241 Difference]: Finished difference. Result has 614 places, 620 transitions, 20054 flow [2021-03-25 12:23:19,853 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19625, PETRI_DIFFERENCE_MINUEND_PLACES=603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=20054, PETRI_PLACES=614, PETRI_TRANSITIONS=620} [2021-03-25 12:23:19,853 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 567 predicate places. [2021-03-25 12:23:19,853 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:19,853 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 614 places, 620 transitions, 20054 flow [2021-03-25 12:23:19,853 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 614 places, 620 transitions, 20054 flow [2021-03-25 12:23:19,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 613 places, 620 transitions, 20054 flow [2021-03-25 12:23:20,118 INFO L129 PetriNetUnfolder]: 387/1118 cut-off events. [2021-03-25 12:23:20,118 INFO L130 PetriNetUnfolder]: For 189951/189982 co-relation queries the response was YES. [2021-03-25 12:23:20,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21114 conditions, 1118 events. 387/1118 cut-off events. For 189951/189982 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9251 event pairs, 37 based on Foata normal form. 10/1124 useless extension candidates. Maximal degree in co-relation 20820. Up to 344 conditions per place. [2021-03-25 12:23:20,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 956 [2021-03-25 12:23:20,192 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:20,192 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:20,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 339 [2021-03-25 12:23:20,192 INFO L480 AbstractCegarLoop]: Abstraction has has 613 places, 620 transitions, 20054 flow [2021-03-25 12:23:20,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:20,192 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:20,192 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:20,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2021-03-25 12:23:20,192 INFO L428 AbstractCegarLoop]: === Iteration 470 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:20,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:20,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1529145575, now seen corresponding path program 63 times [2021-03-25 12:23:20,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:20,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594313292] [2021-03-25 12:23:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:20,199 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:20,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:20,204 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:20,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:20,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:20,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:20,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:20,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:20,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:20,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:20,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:20,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:20,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:20,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:20,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:20,274 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:20,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:20,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594313292] [2021-03-25 12:23:20,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:20,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:20,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887637046] [2021-03-25 12:23:20,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:20,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:20,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:20,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:20,277 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:20,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 620 transitions, 20054 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:20,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:20,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:20,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:21,025 INFO L129 PetriNetUnfolder]: 405/1163 cut-off events. [2021-03-25 12:23:21,026 INFO L130 PetriNetUnfolder]: For 197415/197495 co-relation queries the response was YES. [2021-03-25 12:23:21,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22607 conditions, 1163 events. 405/1163 cut-off events. For 197415/197495 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9535 event pairs, 38 based on Foata normal form. 53/1216 useless extension candidates. Maximal degree in co-relation 22321. Up to 814 conditions per place. [2021-03-25 12:23:21,050 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 482 selfloop transitions, 135 changer transitions 2/627 dead transitions. [2021-03-25 12:23:21,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 627 transitions, 21650 flow [2021-03-25 12:23:21,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:23:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:23:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2021-03-25 12:23:21,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24511278195488723 [2021-03-25 12:23:21,052 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 326 transitions. [2021-03-25 12:23:21,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 326 transitions. [2021-03-25 12:23:21,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:21,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 326 transitions. [2021-03-25 12:23:21,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.6) internal successors, (326), 10 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:21,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:21,053 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:21,053 INFO L185 Difference]: Start difference. First operand has 613 places, 620 transitions, 20054 flow. Second operand 10 states and 326 transitions. [2021-03-25 12:23:21,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 627 transitions, 21650 flow [2021-03-25 12:23:22,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 627 transitions, 21257 flow, removed 83 selfloop flow, removed 8 redundant places. [2021-03-25 12:23:22,180 INFO L241 Difference]: Finished difference. Result has 617 places, 622 transitions, 20224 flow [2021-03-25 12:23:22,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19663, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20224, PETRI_PLACES=617, PETRI_TRANSITIONS=622} [2021-03-25 12:23:22,180 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 570 predicate places. [2021-03-25 12:23:22,180 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:22,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 617 places, 622 transitions, 20224 flow [2021-03-25 12:23:22,180 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 617 places, 622 transitions, 20224 flow [2021-03-25 12:23:22,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 616 places, 622 transitions, 20224 flow [2021-03-25 12:23:22,443 INFO L129 PetriNetUnfolder]: 389/1140 cut-off events. [2021-03-25 12:23:22,443 INFO L130 PetriNetUnfolder]: For 193596/193648 co-relation queries the response was YES. [2021-03-25 12:23:22,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21353 conditions, 1140 events. 389/1140 cut-off events. For 193596/193648 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9514 event pairs, 47 based on Foata normal form. 5/1142 useless extension candidates. Maximal degree in co-relation 21058. Up to 351 conditions per place. [2021-03-25 12:23:22,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 964 [2021-03-25 12:23:22,516 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:22,516 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:22,516 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 336 [2021-03-25 12:23:22,516 INFO L480 AbstractCegarLoop]: Abstraction has has 616 places, 622 transitions, 20224 flow [2021-03-25 12:23:22,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:22,516 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:22,516 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:22,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2021-03-25 12:23:22,516 INFO L428 AbstractCegarLoop]: === Iteration 471 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:22,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:22,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1152739283, now seen corresponding path program 64 times [2021-03-25 12:23:22,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:22,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432044549] [2021-03-25 12:23:22,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:22,522 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:22,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:22,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:22,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:22,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:22,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:22,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:22,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:22,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:22,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:22,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:22,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:22,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:22,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:22,592 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:22,596 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:22,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:22,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432044549] [2021-03-25 12:23:22,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:22,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:22,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574739761] [2021-03-25 12:23:22,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:22,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:22,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:22,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:22,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 622 transitions, 20224 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:22,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:22,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:22,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:23,291 INFO L129 PetriNetUnfolder]: 405/1164 cut-off events. [2021-03-25 12:23:23,291 INFO L130 PetriNetUnfolder]: For 195181/195261 co-relation queries the response was YES. [2021-03-25 12:23:23,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22721 conditions, 1164 events. 405/1164 cut-off events. For 195181/195261 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9524 event pairs, 49 based on Foata normal form. 32/1195 useless extension candidates. Maximal degree in co-relation 22434. Up to 884 conditions per place. [2021-03-25 12:23:23,315 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 536 selfloop transitions, 82 changer transitions 2/628 dead transitions. [2021-03-25 12:23:23,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 628 transitions, 21675 flow [2021-03-25 12:23:23,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:23:23,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:23:23,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 314 transitions. [2021-03-25 12:23:23,317 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23609022556390977 [2021-03-25 12:23:23,317 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 314 transitions. [2021-03-25 12:23:23,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 314 transitions. [2021-03-25 12:23:23,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:23,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 314 transitions. [2021-03-25 12:23:23,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.4) internal successors, (314), 10 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:23,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:23,318 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:23,318 INFO L185 Difference]: Start difference. First operand has 616 places, 622 transitions, 20224 flow. Second operand 10 states and 314 transitions. [2021-03-25 12:23:23,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 628 transitions, 21675 flow [2021-03-25 12:23:24,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 628 transitions, 21170 flow, removed 92 selfloop flow, removed 9 redundant places. [2021-03-25 12:23:24,436 INFO L241 Difference]: Finished difference. Result has 619 places, 624 transitions, 20008 flow [2021-03-25 12:23:24,436 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19727, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20008, PETRI_PLACES=619, PETRI_TRANSITIONS=624} [2021-03-25 12:23:24,436 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 572 predicate places. [2021-03-25 12:23:24,436 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:24,436 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 619 places, 624 transitions, 20008 flow [2021-03-25 12:23:24,436 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 619 places, 624 transitions, 20008 flow [2021-03-25 12:23:24,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 618 places, 624 transitions, 20008 flow [2021-03-25 12:23:24,701 INFO L129 PetriNetUnfolder]: 387/1145 cut-off events. [2021-03-25 12:23:24,702 INFO L130 PetriNetUnfolder]: For 177809/177896 co-relation queries the response was YES. [2021-03-25 12:23:24,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20946 conditions, 1145 events. 387/1145 cut-off events. For 177809/177896 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 9575 event pairs, 39 based on Foata normal form. 17/1159 useless extension candidates. Maximal degree in co-relation 20650. Up to 343 conditions per place. [2021-03-25 12:23:24,745 INFO L142 LiptonReduction]: Number of co-enabled transitions 972 [2021-03-25 12:23:24,789 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:24,789 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:24,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 353 [2021-03-25 12:23:24,789 INFO L480 AbstractCegarLoop]: Abstraction has has 618 places, 624 transitions, 20008 flow [2021-03-25 12:23:24,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:24,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:24,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:24,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2021-03-25 12:23:24,789 INFO L428 AbstractCegarLoop]: === Iteration 472 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:24,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:24,790 INFO L82 PathProgramCache]: Analyzing trace with hash -278731233, now seen corresponding path program 65 times [2021-03-25 12:23:24,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:24,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444406660] [2021-03-25 12:23:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:24,795 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:24,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:24,800 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:24,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:24,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:24,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:24,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:24,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:24,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:24,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:24,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:24,850 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:24,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:24,853 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:24,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:24,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:24,881 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:24,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:24,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444406660] [2021-03-25 12:23:24,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:24,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:24,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757712980] [2021-03-25 12:23:24,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:24,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:24,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:24,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:24,885 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:24,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 624 transitions, 20008 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:24,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:24,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:24,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:25,662 INFO L129 PetriNetUnfolder]: 404/1163 cut-off events. [2021-03-25 12:23:25,662 INFO L130 PetriNetUnfolder]: For 185049/185129 co-relation queries the response was YES. [2021-03-25 12:23:25,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22414 conditions, 1163 events. 404/1163 cut-off events. For 185049/185129 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 9518 event pairs, 43 based on Foata normal form. 42/1205 useless extension candidates. Maximal degree in co-relation 22126. Up to 845 conditions per place. [2021-03-25 12:23:25,687 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 480 selfloop transitions, 135 changer transitions 4/627 dead transitions. [2021-03-25 12:23:25,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 627 transitions, 21341 flow [2021-03-25 12:23:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:25,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2021-03-25 12:23:25,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23718386876281614 [2021-03-25 12:23:25,689 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 347 transitions. [2021-03-25 12:23:25,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 347 transitions. [2021-03-25 12:23:25,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:25,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 347 transitions. [2021-03-25 12:23:25,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.545454545454547) internal successors, (347), 11 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:25,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:25,690 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:25,690 INFO L185 Difference]: Start difference. First operand has 618 places, 624 transitions, 20008 flow. Second operand 11 states and 347 transitions. [2021-03-25 12:23:25,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 627 transitions, 21341 flow [2021-03-25 12:23:26,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 627 transitions, 21118 flow, removed 13 selfloop flow, removed 9 redundant places. [2021-03-25 12:23:26,765 INFO L241 Difference]: Finished difference. Result has 621 places, 621 transitions, 19962 flow [2021-03-25 12:23:26,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19785, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19962, PETRI_PLACES=621, PETRI_TRANSITIONS=621} [2021-03-25 12:23:26,765 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:23:26,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:26,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 621 transitions, 19962 flow [2021-03-25 12:23:26,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 621 transitions, 19962 flow [2021-03-25 12:23:26,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 619 places, 621 transitions, 19962 flow [2021-03-25 12:23:27,033 INFO L129 PetriNetUnfolder]: 390/1151 cut-off events. [2021-03-25 12:23:27,033 INFO L130 PetriNetUnfolder]: For 176669/176685 co-relation queries the response was YES. [2021-03-25 12:23:27,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21165 conditions, 1151 events. 390/1151 cut-off events. For 176669/176685 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9627 event pairs, 35 based on Foata normal form. 10/1161 useless extension candidates. Maximal degree in co-relation 20897. Up to 349 conditions per place. [2021-03-25 12:23:27,067 INFO L142 LiptonReduction]: Number of co-enabled transitions 972 [2021-03-25 12:23:27,107 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:27,107 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:27,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 342 [2021-03-25 12:23:27,107 INFO L480 AbstractCegarLoop]: Abstraction has has 619 places, 621 transitions, 19962 flow [2021-03-25 12:23:27,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:27,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:27,108 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:27,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2021-03-25 12:23:27,108 INFO L428 AbstractCegarLoop]: === Iteration 473 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:27,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:27,108 INFO L82 PathProgramCache]: Analyzing trace with hash -243632587, now seen corresponding path program 66 times [2021-03-25 12:23:27,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:27,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803490887] [2021-03-25 12:23:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:27,113 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:27,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:27,118 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:27,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:27,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:27,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:27,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:27,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:27,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:27,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:27,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:27,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:27,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:27,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:27,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:27,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:27,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:27,189 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:27,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:27,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803490887] [2021-03-25 12:23:27,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:27,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:27,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169536604] [2021-03-25 12:23:27,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:27,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:27,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:27,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:27,192 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:27,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 621 transitions, 19962 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:27,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:27,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:27,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:27,953 INFO L129 PetriNetUnfolder]: 403/1159 cut-off events. [2021-03-25 12:23:27,953 INFO L130 PetriNetUnfolder]: For 189361/189441 co-relation queries the response was YES. [2021-03-25 12:23:27,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22373 conditions, 1159 events. 403/1159 cut-off events. For 189361/189441 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 9463 event pairs, 39 based on Foata normal form. 42/1201 useless extension candidates. Maximal degree in co-relation 22102. Up to 865 conditions per place. [2021-03-25 12:23:27,977 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 523 selfloop transitions, 89 changer transitions 7/627 dead transitions. [2021-03-25 12:23:27,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 627 transitions, 21436 flow [2021-03-25 12:23:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:27,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:23:27,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23308270676691728 [2021-03-25 12:23:27,979 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:23:27,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:23:27,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:27,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:23:27,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:27,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:27,980 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:27,980 INFO L185 Difference]: Start difference. First operand has 619 places, 621 transitions, 19962 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:23:27,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 627 transitions, 21436 flow [2021-03-25 12:23:29,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 627 transitions, 21153 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-03-25 12:23:29,024 INFO L241 Difference]: Finished difference. Result has 622 places, 617 transitions, 19728 flow [2021-03-25 12:23:29,024 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19679, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19728, PETRI_PLACES=622, PETRI_TRANSITIONS=617} [2021-03-25 12:23:29,024 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 575 predicate places. [2021-03-25 12:23:29,024 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:29,024 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 622 places, 617 transitions, 19728 flow [2021-03-25 12:23:29,024 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 622 places, 617 transitions, 19728 flow [2021-03-25 12:23:29,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 616 places, 617 transitions, 19728 flow [2021-03-25 12:23:29,286 INFO L129 PetriNetUnfolder]: 384/1135 cut-off events. [2021-03-25 12:23:29,287 INFO L130 PetriNetUnfolder]: For 180254/180290 co-relation queries the response was YES. [2021-03-25 12:23:29,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20891 conditions, 1135 events. 384/1135 cut-off events. For 180254/180290 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9473 event pairs, 44 based on Foata normal form. 10/1142 useless extension candidates. Maximal degree in co-relation 20622. Up to 343 conditions per place. [2021-03-25 12:23:29,318 INFO L142 LiptonReduction]: Number of co-enabled transitions 958 [2021-03-25 12:23:29,358 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:29,358 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:29,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 334 [2021-03-25 12:23:29,358 INFO L480 AbstractCegarLoop]: Abstraction has has 616 places, 617 transitions, 19728 flow [2021-03-25 12:23:29,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:29,359 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:29,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:29,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2021-03-25 12:23:29,359 INFO L428 AbstractCegarLoop]: === Iteration 474 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:29,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:29,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2110468541, now seen corresponding path program 67 times [2021-03-25 12:23:29,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:29,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675288957] [2021-03-25 12:23:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:29,364 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:29,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:29,369 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:29,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:29,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:29,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:29,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:29,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:29,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:29,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:29,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:29,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:29,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:29,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:29,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:29,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:29,447 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:29,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:29,463 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:29,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:29,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675288957] [2021-03-25 12:23:29,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:29,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:29,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902898980] [2021-03-25 12:23:29,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:29,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:29,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:29,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:29,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:29,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 617 transitions, 19728 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:29,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:29,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:29,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:30,273 INFO L129 PetriNetUnfolder]: 400/1156 cut-off events. [2021-03-25 12:23:30,273 INFO L130 PetriNetUnfolder]: For 191101/191169 co-relation queries the response was YES. [2021-03-25 12:23:30,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22237 conditions, 1156 events. 400/1156 cut-off events. For 191101/191169 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 9454 event pairs, 46 based on Foata normal form. 39/1195 useless extension candidates. Maximal degree in co-relation 21965. Up to 815 conditions per place. [2021-03-25 12:23:30,296 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 461 selfloop transitions, 142 changer transitions 12/623 dead transitions. [2021-03-25 12:23:30,296 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 627 places, 623 transitions, 21168 flow [2021-03-25 12:23:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:23:30,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23558897243107768 [2021-03-25 12:23:30,298 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:23:30,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:23:30,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:30,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:23:30,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:30,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:30,299 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:30,299 INFO L185 Difference]: Start difference. First operand has 616 places, 617 transitions, 19728 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:23:30,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 627 places, 623 transitions, 21168 flow [2021-03-25 12:23:31,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 623 transitions, 21004 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-25 12:23:31,379 INFO L241 Difference]: Finished difference. Result has 621 places, 608 transitions, 19632 flow [2021-03-25 12:23:31,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19564, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19632, PETRI_PLACES=621, PETRI_TRANSITIONS=608} [2021-03-25 12:23:31,379 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 574 predicate places. [2021-03-25 12:23:31,379 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:31,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 608 transitions, 19632 flow [2021-03-25 12:23:31,379 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 608 transitions, 19632 flow [2021-03-25 12:23:31,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 615 places, 608 transitions, 19632 flow [2021-03-25 12:23:31,638 INFO L129 PetriNetUnfolder]: 383/1130 cut-off events. [2021-03-25 12:23:31,638 INFO L130 PetriNetUnfolder]: For 175586/175596 co-relation queries the response was YES. [2021-03-25 12:23:31,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21029 conditions, 1130 events. 383/1130 cut-off events. For 175586/175596 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 9379 event pairs, 41 based on Foata normal form. 7/1137 useless extension candidates. Maximal degree in co-relation 20761. Up to 345 conditions per place. [2021-03-25 12:23:31,669 INFO L142 LiptonReduction]: Number of co-enabled transitions 946 [2021-03-25 12:23:31,708 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:31,708 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:31,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 329 [2021-03-25 12:23:31,709 INFO L480 AbstractCegarLoop]: Abstraction has has 615 places, 608 transitions, 19632 flow [2021-03-25 12:23:31,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:31,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:31,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:31,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2021-03-25 12:23:31,709 INFO L428 AbstractCegarLoop]: === Iteration 475 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:31,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:31,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1266548565, now seen corresponding path program 68 times [2021-03-25 12:23:31,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:31,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060403041] [2021-03-25 12:23:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:31,715 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:31,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:31,720 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:31,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:31,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:31,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:31,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:31,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:31,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:31,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:31,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:31,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:31,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:31,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:31,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:31,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:31,797 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:31,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:31,815 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:31,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060403041] [2021-03-25 12:23:31,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:31,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:31,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578771527] [2021-03-25 12:23:31,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:31,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:31,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:31,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:31,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:31,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 608 transitions, 19632 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:31,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:31,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:31,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:32,633 INFO L129 PetriNetUnfolder]: 397/1145 cut-off events. [2021-03-25 12:23:32,633 INFO L130 PetriNetUnfolder]: For 188798/188878 co-relation queries the response was YES. [2021-03-25 12:23:32,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22156 conditions, 1145 events. 397/1145 cut-off events. For 188798/188878 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 9311 event pairs, 47 based on Foata normal form. 42/1187 useless extension candidates. Maximal degree in co-relation 21885. Up to 823 conditions per place. [2021-03-25 12:23:32,657 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 466 selfloop transitions, 130 changer transitions 9/613 dead transitions. [2021-03-25 12:23:32,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 613 transitions, 21042 flow [2021-03-25 12:23:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:32,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 374 transitions. [2021-03-25 12:23:32,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23433583959899748 [2021-03-25 12:23:32,658 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 374 transitions. [2021-03-25 12:23:32,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 374 transitions. [2021-03-25 12:23:32,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:32,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 374 transitions. [2021-03-25 12:23:32,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.166666666666668) internal successors, (374), 12 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:32,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:32,659 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:32,659 INFO L185 Difference]: Start difference. First operand has 615 places, 608 transitions, 19632 flow. Second operand 12 states and 374 transitions. [2021-03-25 12:23:32,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 613 transitions, 21042 flow [2021-03-25 12:23:33,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 613 transitions, 20619 flow, removed 16 selfloop flow, removed 15 redundant places. [2021-03-25 12:23:33,759 INFO L241 Difference]: Finished difference. Result has 613 places, 602 transitions, 19319 flow [2021-03-25 12:23:33,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19215, PETRI_DIFFERENCE_MINUEND_PLACES=600, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19319, PETRI_PLACES=613, PETRI_TRANSITIONS=602} [2021-03-25 12:23:33,759 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 566 predicate places. [2021-03-25 12:23:33,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:33,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 613 places, 602 transitions, 19319 flow [2021-03-25 12:23:33,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 613 places, 602 transitions, 19319 flow [2021-03-25 12:23:33,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 607 places, 602 transitions, 19319 flow [2021-03-25 12:23:34,035 INFO L129 PetriNetUnfolder]: 379/1110 cut-off events. [2021-03-25 12:23:34,035 INFO L130 PetriNetUnfolder]: For 169814/169844 co-relation queries the response was YES. [2021-03-25 12:23:34,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20611 conditions, 1110 events. 379/1110 cut-off events. For 169814/169844 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 9180 event pairs, 34 based on Foata normal form. 3/1113 useless extension candidates. Maximal degree in co-relation 20347. Up to 342 conditions per place. [2021-03-25 12:23:34,065 INFO L142 LiptonReduction]: Number of co-enabled transitions 940 [2021-03-25 12:23:34,102 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:34,102 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:34,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 343 [2021-03-25 12:23:34,103 INFO L480 AbstractCegarLoop]: Abstraction has has 607 places, 602 transitions, 19319 flow [2021-03-25 12:23:34,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:34,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:34,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:34,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2021-03-25 12:23:34,103 INFO L428 AbstractCegarLoop]: === Iteration 476 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:34,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:34,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1955376261, now seen corresponding path program 69 times [2021-03-25 12:23:34,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:34,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993117090] [2021-03-25 12:23:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:34,110 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:34,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:34,115 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:34,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:34,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:34,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:34,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:34,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:34,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:34,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:34,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:34,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:34,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:34,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:34,181 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:34,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:34,196 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:34,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:34,212 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:34,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:34,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993117090] [2021-03-25 12:23:34,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:34,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:23:34,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894031318] [2021-03-25 12:23:34,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:23:34,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:34,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:23:34,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:23:34,216 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:34,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 602 transitions, 19319 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:34,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:34,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:34,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:35,000 INFO L129 PetriNetUnfolder]: 394/1136 cut-off events. [2021-03-25 12:23:35,000 INFO L130 PetriNetUnfolder]: For 184840/184920 co-relation queries the response was YES. [2021-03-25 12:23:35,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21842 conditions, 1136 events. 394/1136 cut-off events. For 184840/184920 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 9230 event pairs, 47 based on Foata normal form. 42/1178 useless extension candidates. Maximal degree in co-relation 21575. Up to 817 conditions per place. [2021-03-25 12:23:35,025 INFO L132 encePairwiseOnDemand]: 117/133 looper letters, 462 selfloop transitions, 116 changer transitions 20/606 dead transitions. [2021-03-25 12:23:35,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 606 transitions, 20678 flow [2021-03-25 12:23:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:35,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:35,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:23:35,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23558897243107768 [2021-03-25 12:23:35,026 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:23:35,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:23:35,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:35,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:23:35,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:35,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:35,028 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:35,028 INFO L185 Difference]: Start difference. First operand has 607 places, 602 transitions, 19319 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:23:35,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 606 transitions, 20678 flow [2021-03-25 12:23:36,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 606 transitions, 20372 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-03-25 12:23:36,043 INFO L241 Difference]: Finished difference. Result has 606 places, 584 transitions, 18742 flow [2021-03-25 12:23:36,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=19015, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=18742, PETRI_PLACES=606, PETRI_TRANSITIONS=584} [2021-03-25 12:23:36,043 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 559 predicate places. [2021-03-25 12:23:36,043 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:36,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 606 places, 584 transitions, 18742 flow [2021-03-25 12:23:36,043 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 606 places, 584 transitions, 18742 flow [2021-03-25 12:23:36,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 598 places, 584 transitions, 18742 flow [2021-03-25 12:23:36,289 INFO L129 PetriNetUnfolder]: 373/1087 cut-off events. [2021-03-25 12:23:36,289 INFO L130 PetriNetUnfolder]: For 175942/176003 co-relation queries the response was YES. [2021-03-25 12:23:36,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20170 conditions, 1087 events. 373/1087 cut-off events. For 175942/176003 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 8851 event pairs, 40 based on Foata normal form. 15/1102 useless extension candidates. Maximal degree in co-relation 19912. Up to 336 conditions per place. [2021-03-25 12:23:36,320 INFO L142 LiptonReduction]: Number of co-enabled transitions 936 [2021-03-25 12:23:36,357 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:36,357 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:36,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 314 [2021-03-25 12:23:36,357 INFO L480 AbstractCegarLoop]: Abstraction has has 598 places, 584 transitions, 18742 flow [2021-03-25 12:23:36,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:36,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:36,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:36,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2021-03-25 12:23:36,358 INFO L428 AbstractCegarLoop]: === Iteration 477 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:36,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:36,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1162535661, now seen corresponding path program 70 times [2021-03-25 12:23:36,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:36,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241764030] [2021-03-25 12:23:36,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:36,363 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:36,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:36,368 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:36,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:36,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:36,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:36,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:36,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:36,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:36,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:36,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:36,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:36,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:36,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:36,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:36,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:36,450 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:36,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:36,465 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:36,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241764030] [2021-03-25 12:23:36,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:36,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:36,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291647203] [2021-03-25 12:23:36,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:36,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:36,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:36,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:36,468 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:36,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 584 transitions, 18742 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:36,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:36,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:36,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:37,145 INFO L129 PetriNetUnfolder]: 389/1111 cut-off events. [2021-03-25 12:23:37,145 INFO L130 PetriNetUnfolder]: For 183403/183483 co-relation queries the response was YES. [2021-03-25 12:23:37,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21469 conditions, 1111 events. 389/1111 cut-off events. For 183403/183483 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 8921 event pairs, 49 based on Foata normal form. 43/1153 useless extension candidates. Maximal degree in co-relation 21208. Up to 830 conditions per place. [2021-03-25 12:23:37,220 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 490 selfloop transitions, 86 changer transitions 3/587 dead transitions. [2021-03-25 12:23:37,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 587 transitions, 19980 flow [2021-03-25 12:23:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:23:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:23:37,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2021-03-25 12:23:37,221 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23684210526315788 [2021-03-25 12:23:37,221 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 315 transitions. [2021-03-25 12:23:37,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 315 transitions. [2021-03-25 12:23:37,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:37,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 315 transitions. [2021-03-25 12:23:37,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.5) internal successors, (315), 10 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:37,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:37,222 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:37,222 INFO L185 Difference]: Start difference. First operand has 598 places, 584 transitions, 18742 flow. Second operand 10 states and 315 transitions. [2021-03-25 12:23:37,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 587 transitions, 19980 flow [2021-03-25 12:23:38,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 587 transitions, 19316 flow, removed 27 selfloop flow, removed 29 redundant places. [2021-03-25 12:23:38,113 INFO L241 Difference]: Finished difference. Result has 580 places, 582 transitions, 18225 flow [2021-03-25 12:23:38,113 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=18078, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=498, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18225, PETRI_PLACES=580, PETRI_TRANSITIONS=582} [2021-03-25 12:23:38,113 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 533 predicate places. [2021-03-25 12:23:38,113 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:38,113 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 580 places, 582 transitions, 18225 flow [2021-03-25 12:23:38,114 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 580 places, 582 transitions, 18225 flow [2021-03-25 12:23:38,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 576 places, 582 transitions, 18225 flow [2021-03-25 12:23:38,357 INFO L129 PetriNetUnfolder]: 374/1097 cut-off events. [2021-03-25 12:23:38,357 INFO L130 PetriNetUnfolder]: For 160193/160213 co-relation queries the response was YES. [2021-03-25 12:23:38,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19930 conditions, 1097 events. 374/1097 cut-off events. For 160193/160213 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 8985 event pairs, 36 based on Foata normal form. 10/1107 useless extension candidates. Maximal degree in co-relation 19676. Up to 341 conditions per place. [2021-03-25 12:23:38,386 INFO L142 LiptonReduction]: Number of co-enabled transitions 928 [2021-03-25 12:23:38,422 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:38,422 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:38,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 12:23:38,423 INFO L480 AbstractCegarLoop]: Abstraction has has 576 places, 582 transitions, 18225 flow [2021-03-25 12:23:38,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:38,423 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:38,423 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:38,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2021-03-25 12:23:38,423 INFO L428 AbstractCegarLoop]: === Iteration 478 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:38,423 INFO L82 PathProgramCache]: Analyzing trace with hash -244585471, now seen corresponding path program 71 times [2021-03-25 12:23:38,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:38,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921877376] [2021-03-25 12:23:38,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:38,429 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:38,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:38,438 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:38,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:38,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:38,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:38,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:38,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:38,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:38,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:38,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:38,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:38,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:38,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:38,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:38,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:38,495 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:38,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:38,509 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:38,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:38,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:38,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921877376] [2021-03-25 12:23:38,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:38,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:38,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685779915] [2021-03-25 12:23:38,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:38,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:38,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:38,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:38,512 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:38,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 582 transitions, 18225 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:38,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:38,512 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:38,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:39,162 INFO L129 PetriNetUnfolder]: 388/1119 cut-off events. [2021-03-25 12:23:39,163 INFO L130 PetriNetUnfolder]: For 172318/172476 co-relation queries the response was YES. [2021-03-25 12:23:39,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21041 conditions, 1119 events. 388/1119 cut-off events. For 172318/172476 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 9065 event pairs, 49 based on Foata normal form. 36/1154 useless extension candidates. Maximal degree in co-relation 20784. Up to 842 conditions per place. [2021-03-25 12:23:39,185 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 502 selfloop transitions, 72 changer transitions 6/588 dead transitions. [2021-03-25 12:23:39,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 585 places, 588 transitions, 19531 flow [2021-03-25 12:23:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:23:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:23:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2021-03-25 12:23:39,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23308270676691728 [2021-03-25 12:23:39,186 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 310 transitions. [2021-03-25 12:23:39,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 310 transitions. [2021-03-25 12:23:39,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:39,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 310 transitions. [2021-03-25 12:23:39,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:39,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:39,187 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:39,187 INFO L185 Difference]: Start difference. First operand has 576 places, 582 transitions, 18225 flow. Second operand 10 states and 310 transitions. [2021-03-25 12:23:39,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 585 places, 588 transitions, 19531 flow [2021-03-25 12:23:40,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 588 transitions, 19371 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-25 12:23:40,126 INFO L241 Difference]: Finished difference. Result has 581 places, 580 transitions, 18158 flow [2021-03-25 12:23:40,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=18069, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18158, PETRI_PLACES=581, PETRI_TRANSITIONS=580} [2021-03-25 12:23:40,126 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 534 predicate places. [2021-03-25 12:23:40,126 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:40,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 580 transitions, 18158 flow [2021-03-25 12:23:40,126 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 580 transitions, 18158 flow [2021-03-25 12:23:40,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 578 places, 580 transitions, 18158 flow [2021-03-25 12:23:40,379 INFO L129 PetriNetUnfolder]: 371/1088 cut-off events. [2021-03-25 12:23:40,379 INFO L130 PetriNetUnfolder]: For 160683/160698 co-relation queries the response was YES. [2021-03-25 12:23:40,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19671 conditions, 1088 events. 371/1088 cut-off events. For 160683/160698 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 8917 event pairs, 37 based on Foata normal form. 12/1100 useless extension candidates. Maximal degree in co-relation 19416. Up to 334 conditions per place. [2021-03-25 12:23:40,410 INFO L142 LiptonReduction]: Number of co-enabled transitions 928 [2021-03-25 12:23:40,448 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:40,448 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:40,448 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 322 [2021-03-25 12:23:40,448 INFO L480 AbstractCegarLoop]: Abstraction has has 578 places, 580 transitions, 18158 flow [2021-03-25 12:23:40,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:40,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:40,449 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:40,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2021-03-25 12:23:40,449 INFO L428 AbstractCegarLoop]: === Iteration 479 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash -226151445, now seen corresponding path program 72 times [2021-03-25 12:23:40,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:40,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272108731] [2021-03-25 12:23:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:40,457 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:40,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:40,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:40,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:40,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:40,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:40,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:40,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:40,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:40,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:40,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:40,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:40,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:40,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:40,507 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:40,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:40,520 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:40,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:40,534 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:40,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:40,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272108731] [2021-03-25 12:23:40,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:40,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:40,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127161958] [2021-03-25 12:23:40,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:40,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:40,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:40,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:40,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:40,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 580 transitions, 18158 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:40,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:40,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:40,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:41,192 INFO L129 PetriNetUnfolder]: 386/1115 cut-off events. [2021-03-25 12:23:41,192 INFO L130 PetriNetUnfolder]: For 172075/172233 co-relation queries the response was YES. [2021-03-25 12:23:41,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20983 conditions, 1115 events. 386/1115 cut-off events. For 172075/172233 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 9021 event pairs, 49 based on Foata normal form. 36/1150 useless extension candidates. Maximal degree in co-relation 20725. Up to 839 conditions per place. [2021-03-25 12:23:41,213 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 499 selfloop transitions, 62 changer transitions 15/584 dead transitions. [2021-03-25 12:23:41,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 584 transitions, 19429 flow [2021-03-25 12:23:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:23:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:23:41,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2021-03-25 12:23:41,214 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23458646616541354 [2021-03-25 12:23:41,214 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 312 transitions. [2021-03-25 12:23:41,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 312 transitions. [2021-03-25 12:23:41,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:41,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 312 transitions. [2021-03-25 12:23:41,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.2) internal successors, (312), 10 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:41,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:41,215 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:41,215 INFO L185 Difference]: Start difference. First operand has 578 places, 580 transitions, 18158 flow. Second operand 10 states and 312 transitions. [2021-03-25 12:23:41,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 584 transitions, 19429 flow [2021-03-25 12:23:42,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 584 transitions, 19264 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 12:23:42,123 INFO L241 Difference]: Finished difference. Result has 580 places, 567 transitions, 17687 flow [2021-03-25 12:23:42,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=17993, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17687, PETRI_PLACES=580, PETRI_TRANSITIONS=567} [2021-03-25 12:23:42,123 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 533 predicate places. [2021-03-25 12:23:42,123 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:42,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 580 places, 567 transitions, 17687 flow [2021-03-25 12:23:42,123 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 580 places, 567 transitions, 17687 flow [2021-03-25 12:23:42,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 574 places, 567 transitions, 17687 flow [2021-03-25 12:23:42,351 INFO L129 PetriNetUnfolder]: 369/1080 cut-off events. [2021-03-25 12:23:42,351 INFO L130 PetriNetUnfolder]: For 165081/165124 co-relation queries the response was YES. [2021-03-25 12:23:42,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19632 conditions, 1080 events. 369/1080 cut-off events. For 165081/165124 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8822 event pairs, 38 based on Foata normal form. 3/1080 useless extension candidates. Maximal degree in co-relation 19379. Up to 337 conditions per place. [2021-03-25 12:23:42,379 INFO L142 LiptonReduction]: Number of co-enabled transitions 928 [2021-03-25 12:23:42,412 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:42,412 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:42,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 289 [2021-03-25 12:23:42,413 INFO L480 AbstractCegarLoop]: Abstraction has has 574 places, 567 transitions, 17687 flow [2021-03-25 12:23:42,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:42,413 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:42,413 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:42,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2021-03-25 12:23:42,413 INFO L428 AbstractCegarLoop]: === Iteration 480 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:42,413 INFO L82 PathProgramCache]: Analyzing trace with hash 293270107, now seen corresponding path program 73 times [2021-03-25 12:23:42,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:42,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026563910] [2021-03-25 12:23:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:42,418 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:42,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:42,423 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:42,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:42,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:42,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:42,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:42,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:42,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:42,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:42,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:42,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:42,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:42,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:42,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:42,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:42,490 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:42,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:42,505 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:42,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:42,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026563910] [2021-03-25 12:23:42,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:42,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:42,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9815790] [2021-03-25 12:23:42,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:42,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:42,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:42,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:42,508 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:42,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 567 transitions, 17687 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:42,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:42,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:42,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:43,145 INFO L129 PetriNetUnfolder]: 380/1082 cut-off events. [2021-03-25 12:23:43,146 INFO L130 PetriNetUnfolder]: For 170154/170234 co-relation queries the response was YES. [2021-03-25 12:23:43,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20537 conditions, 1082 events. 380/1082 cut-off events. For 170154/170234 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 8564 event pairs, 49 based on Foata normal form. 32/1113 useless extension candidates. Maximal degree in co-relation 20281. Up to 830 conditions per place. [2021-03-25 12:23:43,166 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 497 selfloop transitions, 56 changer transitions 10/571 dead transitions. [2021-03-25 12:23:43,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 571 transitions, 18911 flow [2021-03-25 12:23:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:43,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 336 transitions. [2021-03-25 12:23:43,167 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22966507177033493 [2021-03-25 12:23:43,167 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 336 transitions. [2021-03-25 12:23:43,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 336 transitions. [2021-03-25 12:23:43,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:43,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 336 transitions. [2021-03-25 12:23:43,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.545454545454547) internal successors, (336), 11 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:43,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:43,168 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:43,168 INFO L185 Difference]: Start difference. First operand has 574 places, 567 transitions, 17687 flow. Second operand 11 states and 336 transitions. [2021-03-25 12:23:43,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 571 transitions, 18911 flow [2021-03-25 12:23:43,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 571 transitions, 18655 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-25 12:23:44,004 INFO L241 Difference]: Finished difference. Result has 571 places, 559 transitions, 17333 flow [2021-03-25 12:23:44,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=17431, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17333, PETRI_PLACES=571, PETRI_TRANSITIONS=559} [2021-03-25 12:23:44,004 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 524 predicate places. [2021-03-25 12:23:44,004 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:44,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 571 places, 559 transitions, 17333 flow [2021-03-25 12:23:44,004 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 571 places, 559 transitions, 17333 flow [2021-03-25 12:23:44,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 562 places, 559 transitions, 17333 flow [2021-03-25 12:23:44,227 INFO L129 PetriNetUnfolder]: 362/1050 cut-off events. [2021-03-25 12:23:44,227 INFO L130 PetriNetUnfolder]: For 160709/160736 co-relation queries the response was YES. [2021-03-25 12:23:44,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19088 conditions, 1050 events. 362/1050 cut-off events. For 160709/160736 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8495 event pairs, 37 based on Foata normal form. 11/1060 useless extension candidates. Maximal degree in co-relation 18837. Up to 327 conditions per place. [2021-03-25 12:23:44,254 INFO L142 LiptonReduction]: Number of co-enabled transitions 920 [2021-03-25 12:23:44,288 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:44,288 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:44,288 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 284 [2021-03-25 12:23:44,288 INFO L480 AbstractCegarLoop]: Abstraction has has 562 places, 559 transitions, 17333 flow [2021-03-25 12:23:44,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:44,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:44,288 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:44,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2021-03-25 12:23:44,288 INFO L428 AbstractCegarLoop]: === Iteration 481 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:44,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1221910373, now seen corresponding path program 74 times [2021-03-25 12:23:44,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:44,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716565183] [2021-03-25 12:23:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:44,294 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:44,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:44,299 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:44,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:44,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:44,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:44,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:44,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:44,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:44,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:44,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:44,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:44,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:44,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:44,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:44,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:44,376 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:44,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:44,391 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:44,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:44,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716565183] [2021-03-25 12:23:44,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:44,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:44,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637277293] [2021-03-25 12:23:44,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:44,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:44,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:44,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:44,394 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 133 [2021-03-25 12:23:44,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 559 transitions, 17333 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:44,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:44,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 133 [2021-03-25 12:23:44,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:45,003 INFO L129 PetriNetUnfolder]: 377/1072 cut-off events. [2021-03-25 12:23:45,003 INFO L130 PetriNetUnfolder]: For 168298/168359 co-relation queries the response was YES. [2021-03-25 12:23:45,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20360 conditions, 1072 events. 377/1072 cut-off events. For 168298/168359 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 8474 event pairs, 49 based on Foata normal form. 32/1104 useless extension candidates. Maximal degree in co-relation 20106. Up to 820 conditions per place. [2021-03-25 12:23:45,024 INFO L132 encePairwiseOnDemand]: 119/133 looper letters, 490 selfloop transitions, 50 changer transitions 15/563 dead transitions. [2021-03-25 12:23:45,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 563 transitions, 18564 flow [2021-03-25 12:23:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 335 transitions. [2021-03-25 12:23:45,025 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22898154477101845 [2021-03-25 12:23:45,025 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 335 transitions. [2021-03-25 12:23:45,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 335 transitions. [2021-03-25 12:23:45,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:45,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 335 transitions. [2021-03-25 12:23:45,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.454545454545453) internal successors, (335), 11 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:45,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:45,026 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 133.0) internal successors, (1596), 12 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:45,026 INFO L185 Difference]: Start difference. First operand has 562 places, 559 transitions, 17333 flow. Second operand 11 states and 335 transitions. [2021-03-25 12:23:45,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 563 transitions, 18564 flow [2021-03-25 12:23:45,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 563 transitions, 18394 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-03-25 12:23:45,915 INFO L241 Difference]: Finished difference. Result has 563 places, 546 transitions, 16876 flow [2021-03-25 12:23:45,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=17163, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16876, PETRI_PLACES=563, PETRI_TRANSITIONS=546} [2021-03-25 12:23:45,915 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 516 predicate places. [2021-03-25 12:23:45,915 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:45,915 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 563 places, 546 transitions, 16876 flow [2021-03-25 12:23:45,915 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 563 places, 546 transitions, 16876 flow [2021-03-25 12:23:45,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 550 places, 546 transitions, 16876 flow [2021-03-25 12:23:46,139 INFO L129 PetriNetUnfolder]: 360/1044 cut-off events. [2021-03-25 12:23:46,139 INFO L130 PetriNetUnfolder]: For 156192/156200 co-relation queries the response was YES. [2021-03-25 12:23:46,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19087 conditions, 1044 events. 360/1044 cut-off events. For 156192/156200 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 8417 event pairs, 34 based on Foata normal form. 5/1049 useless extension candidates. Maximal degree in co-relation 18837. Up to 332 conditions per place. [2021-03-25 12:23:46,174 INFO L142 LiptonReduction]: Number of co-enabled transitions 910 [2021-03-25 12:23:46,295 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:46,295 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:23:46,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 380 [2021-03-25 12:23:46,296 INFO L480 AbstractCegarLoop]: Abstraction has has 550 places, 546 transitions, 16879 flow [2021-03-25 12:23:46,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:46,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:46,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:46,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2021-03-25 12:23:46,296 INFO L428 AbstractCegarLoop]: === Iteration 482 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:46,296 INFO L82 PathProgramCache]: Analyzing trace with hash -531545381, now seen corresponding path program 75 times [2021-03-25 12:23:46,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:46,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611386273] [2021-03-25 12:23:46,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:46,303 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:46,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:46,308 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:46,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:46,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:46,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:46,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:46,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:46,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:46,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:46,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:46,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:46,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:46,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:46,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:46,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:46,376 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:46,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:46,391 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:46,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:46,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:46,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611386273] [2021-03-25 12:23:46,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:46,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:46,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233541850] [2021-03-25 12:23:46,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:46,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:46,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:46,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:46,394 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:46,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 546 transitions, 16879 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:46,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:46,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:46,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:47,123 INFO L129 PetriNetUnfolder]: 374/1048 cut-off events. [2021-03-25 12:23:47,123 INFO L130 PetriNetUnfolder]: For 169592/169672 co-relation queries the response was YES. [2021-03-25 12:23:47,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20085 conditions, 1048 events. 374/1048 cut-off events. For 169592/169672 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8179 event pairs, 43 based on Foata normal form. 42/1090 useless extension candidates. Maximal degree in co-relation 19832. Up to 792 conditions per place. [2021-03-25 12:23:47,146 INFO L132 encePairwiseOnDemand]: 119/134 looper letters, 466 selfloop transitions, 66 changer transitions 11/551 dead transitions. [2021-03-25 12:23:47,146 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 560 places, 551 transitions, 18086 flow [2021-03-25 12:23:47,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:47,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 345 transitions. [2021-03-25 12:23:47,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23405698778833106 [2021-03-25 12:23:47,148 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 345 transitions. [2021-03-25 12:23:47,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 345 transitions. [2021-03-25 12:23:47,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:47,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 345 transitions. [2021-03-25 12:23:47,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.363636363636363) internal successors, (345), 11 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:47,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:47,149 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:47,149 INFO L185 Difference]: Start difference. First operand has 550 places, 546 transitions, 16879 flow. Second operand 11 states and 345 transitions. [2021-03-25 12:23:47,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 560 places, 551 transitions, 18086 flow [2021-03-25 12:23:47,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 551 transitions, 17824 flow, removed 16 selfloop flow, removed 16 redundant places. [2021-03-25 12:23:47,919 INFO L241 Difference]: Finished difference. Result has 546 places, 536 transitions, 16480 flow [2021-03-25 12:23:47,919 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=16619, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16480, PETRI_PLACES=546, PETRI_TRANSITIONS=536} [2021-03-25 12:23:47,919 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 499 predicate places. [2021-03-25 12:23:47,919 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:47,919 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 546 places, 536 transitions, 16480 flow [2021-03-25 12:23:47,920 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 546 places, 536 transitions, 16480 flow [2021-03-25 12:23:47,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 542 places, 536 transitions, 16480 flow [2021-03-25 12:23:48,175 INFO L129 PetriNetUnfolder]: 357/1030 cut-off events. [2021-03-25 12:23:48,175 INFO L130 PetriNetUnfolder]: For 154742/154774 co-relation queries the response was YES. [2021-03-25 12:23:48,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18882 conditions, 1030 events. 357/1030 cut-off events. For 154742/154774 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8246 event pairs, 35 based on Foata normal form. 5/1035 useless extension candidates. Maximal degree in co-relation 18636. Up to 327 conditions per place. [2021-03-25 12:23:48,202 INFO L142 LiptonReduction]: Number of co-enabled transitions 886 [2021-03-25 12:23:48,233 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:48,233 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:48,233 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 314 [2021-03-25 12:23:48,233 INFO L480 AbstractCegarLoop]: Abstraction has has 542 places, 536 transitions, 16480 flow [2021-03-25 12:23:48,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:48,233 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:48,233 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:48,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2021-03-25 12:23:48,233 INFO L428 AbstractCegarLoop]: === Iteration 483 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:48,233 INFO L82 PathProgramCache]: Analyzing trace with hash 252756726, now seen corresponding path program 1 times [2021-03-25 12:23:48,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:48,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090343198] [2021-03-25 12:23:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:48,239 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:48,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:48,244 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:48,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:48,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:48,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:48,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:48,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:48,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:48,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:48,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:48,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:23:48,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:48,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:48,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:48,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:23:48,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:23:48,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:23:48,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:48,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090343198] [2021-03-25 12:23:48,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:48,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:48,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839031453] [2021-03-25 12:23:48,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:48,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:48,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:48,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:48,312 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:48,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 536 transitions, 16480 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:48,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:48,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:48,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:48,859 INFO L129 PetriNetUnfolder]: 371/1038 cut-off events. [2021-03-25 12:23:48,859 INFO L130 PetriNetUnfolder]: For 165301/165381 co-relation queries the response was YES. [2021-03-25 12:23:48,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19836 conditions, 1038 events. 371/1038 cut-off events. For 165301/165381 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8073 event pairs, 50 based on Foata normal form. 21/1058 useless extension candidates. Maximal degree in co-relation 19587. Up to 824 conditions per place. [2021-03-25 12:23:48,879 INFO L132 encePairwiseOnDemand]: 123/134 looper letters, 503 selfloop transitions, 23 changer transitions 3/537 dead transitions. [2021-03-25 12:23:48,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 537 transitions, 17543 flow [2021-03-25 12:23:48,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 325 transitions. [2021-03-25 12:23:48,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22048846675712347 [2021-03-25 12:23:48,881 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 325 transitions. [2021-03-25 12:23:48,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 325 transitions. [2021-03-25 12:23:48,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:48,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 325 transitions. [2021-03-25 12:23:48,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 11 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:48,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:48,882 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:48,882 INFO L185 Difference]: Start difference. First operand has 542 places, 536 transitions, 16480 flow. Second operand 11 states and 325 transitions. [2021-03-25 12:23:48,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 537 transitions, 17543 flow [2021-03-25 12:23:49,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 537 transitions, 17368 flow, removed 3 selfloop flow, removed 13 redundant places. [2021-03-25 12:23:49,655 INFO L241 Difference]: Finished difference. Result has 540 places, 533 transitions, 16254 flow [2021-03-25 12:23:49,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=16305, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16254, PETRI_PLACES=540, PETRI_TRANSITIONS=533} [2021-03-25 12:23:49,656 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 493 predicate places. [2021-03-25 12:23:49,656 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:49,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 540 places, 533 transitions, 16254 flow [2021-03-25 12:23:49,656 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 540 places, 533 transitions, 16254 flow [2021-03-25 12:23:49,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 536 places, 533 transitions, 16254 flow [2021-03-25 12:23:49,868 INFO L129 PetriNetUnfolder]: 355/1014 cut-off events. [2021-03-25 12:23:49,868 INFO L130 PetriNetUnfolder]: For 157125/157182 co-relation queries the response was YES. [2021-03-25 12:23:49,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18604 conditions, 1014 events. 355/1014 cut-off events. For 157125/157182 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7998 event pairs, 36 based on Foata normal form. 13/1027 useless extension candidates. Maximal degree in co-relation 18360. Up to 322 conditions per place. [2021-03-25 12:23:49,894 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 12:23:49,925 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:49,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:49,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 269 [2021-03-25 12:23:49,926 INFO L480 AbstractCegarLoop]: Abstraction has has 536 places, 533 transitions, 16254 flow [2021-03-25 12:23:49,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:49,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:49,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:49,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2021-03-25 12:23:49,926 INFO L428 AbstractCegarLoop]: === Iteration 484 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:49,926 INFO L82 PathProgramCache]: Analyzing trace with hash 433624490, now seen corresponding path program 2 times [2021-03-25 12:23:49,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:49,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613180034] [2021-03-25 12:23:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:49,931 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:49,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:49,936 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:49,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:49,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:49,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:49,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:49,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:49,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:49,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:49,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:49,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:23:49,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:49,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:23:49,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:49,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:23:50,000 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:23:50,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:23:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:50,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613180034] [2021-03-25 12:23:50,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:50,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:50,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274240877] [2021-03-25 12:23:50,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:50,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:50,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:50,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:50,003 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:50,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 533 transitions, 16254 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:50,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:50,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:50,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:50,542 INFO L129 PetriNetUnfolder]: 370/1034 cut-off events. [2021-03-25 12:23:50,542 INFO L130 PetriNetUnfolder]: For 164758/164838 co-relation queries the response was YES. [2021-03-25 12:23:50,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19703 conditions, 1034 events. 370/1034 cut-off events. For 164758/164838 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 8038 event pairs, 50 based on Foata normal form. 21/1054 useless extension candidates. Maximal degree in co-relation 19456. Up to 822 conditions per place. [2021-03-25 12:23:50,562 INFO L132 encePairwiseOnDemand]: 123/134 looper letters, 502 selfloop transitions, 21 changer transitions 4/535 dead transitions. [2021-03-25 12:23:50,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 535 transitions, 17331 flow [2021-03-25 12:23:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:23:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:23:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 298 transitions. [2021-03-25 12:23:50,563 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22238805970149253 [2021-03-25 12:23:50,563 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 298 transitions. [2021-03-25 12:23:50,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 298 transitions. [2021-03-25 12:23:50,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:50,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 298 transitions. [2021-03-25 12:23:50,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.8) internal successors, (298), 10 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:50,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:50,564 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:50,564 INFO L185 Difference]: Start difference. First operand has 536 places, 533 transitions, 16254 flow. Second operand 10 states and 298 transitions. [2021-03-25 12:23:50,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 535 transitions, 17331 flow [2021-03-25 12:23:51,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 535 transitions, 17274 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-25 12:23:51,360 INFO L241 Difference]: Finished difference. Result has 539 places, 530 transitions, 16165 flow [2021-03-25 12:23:51,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=16197, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16165, PETRI_PLACES=539, PETRI_TRANSITIONS=530} [2021-03-25 12:23:51,360 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 492 predicate places. [2021-03-25 12:23:51,360 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:51,360 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 530 transitions, 16165 flow [2021-03-25 12:23:51,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 530 transitions, 16165 flow [2021-03-25 12:23:51,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 533 places, 530 transitions, 16165 flow [2021-03-25 12:23:51,596 INFO L129 PetriNetUnfolder]: 354/1012 cut-off events. [2021-03-25 12:23:51,596 INFO L130 PetriNetUnfolder]: For 154418/154422 co-relation queries the response was YES. [2021-03-25 12:23:51,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18551 conditions, 1012 events. 354/1012 cut-off events. For 154418/154422 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 8023 event pairs, 35 based on Foata normal form. 3/1014 useless extension candidates. Maximal degree in co-relation 18307. Up to 323 conditions per place. [2021-03-25 12:23:51,621 INFO L142 LiptonReduction]: Number of co-enabled transitions 878 [2021-03-25 12:23:51,651 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:51,651 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:51,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 291 [2021-03-25 12:23:51,651 INFO L480 AbstractCegarLoop]: Abstraction has has 533 places, 530 transitions, 16165 flow [2021-03-25 12:23:51,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:51,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:51,652 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:51,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2021-03-25 12:23:51,652 INFO L428 AbstractCegarLoop]: === Iteration 485 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:51,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:51,652 INFO L82 PathProgramCache]: Analyzing trace with hash 983635099, now seen corresponding path program 76 times [2021-03-25 12:23:51,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:51,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646942627] [2021-03-25 12:23:51,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:51,657 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:51,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:51,662 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:51,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:51,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:51,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:51,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:51,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:51,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:51,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:23:51,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:51,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:51,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:51,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:51,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:51,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:51,729 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:51,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:51,744 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:51,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:51,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646942627] [2021-03-25 12:23:51,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:51,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:51,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599535067] [2021-03-25 12:23:51,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:51,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:51,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:51,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:51,747 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:51,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 530 transitions, 16165 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:51,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:51,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:51,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:52,440 INFO L129 PetriNetUnfolder]: 369/1033 cut-off events. [2021-03-25 12:23:52,440 INFO L130 PetriNetUnfolder]: For 165619/165680 co-relation queries the response was YES. [2021-03-25 12:23:52,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19695 conditions, 1033 events. 369/1033 cut-off events. For 165619/165680 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8037 event pairs, 40 based on Foata normal form. 54/1087 useless extension candidates. Maximal degree in co-relation 19448. Up to 752 conditions per place. [2021-03-25 12:23:52,460 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 428 selfloop transitions, 79 changer transitions 21/536 dead transitions. [2021-03-25 12:23:52,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 536 transitions, 17426 flow [2021-03-25 12:23:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 378 transitions. [2021-03-25 12:23:52,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23507462686567165 [2021-03-25 12:23:52,461 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 378 transitions. [2021-03-25 12:23:52,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 378 transitions. [2021-03-25 12:23:52,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:52,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 378 transitions. [2021-03-25 12:23:52,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.5) internal successors, (378), 12 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:52,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:52,462 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:52,463 INFO L185 Difference]: Start difference. First operand has 533 places, 530 transitions, 16165 flow. Second operand 12 states and 378 transitions. [2021-03-25 12:23:52,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 536 transitions, 17426 flow [2021-03-25 12:23:53,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 536 transitions, 17380 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-25 12:23:53,309 INFO L241 Difference]: Finished difference. Result has 539 places, 512 transitions, 15848 flow [2021-03-25 12:23:53,309 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=16119, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15848, PETRI_PLACES=539, PETRI_TRANSITIONS=512} [2021-03-25 12:23:53,310 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 492 predicate places. [2021-03-25 12:23:53,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:53,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 512 transitions, 15848 flow [2021-03-25 12:23:53,310 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 512 transitions, 15848 flow [2021-03-25 12:23:53,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 532 places, 512 transitions, 15848 flow [2021-03-25 12:23:53,516 INFO L129 PetriNetUnfolder]: 349/983 cut-off events. [2021-03-25 12:23:53,516 INFO L130 PetriNetUnfolder]: For 157330/157362 co-relation queries the response was YES. [2021-03-25 12:23:53,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18468 conditions, 983 events. 349/983 cut-off events. For 157330/157362 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7660 event pairs, 28 based on Foata normal form. 5/988 useless extension candidates. Maximal degree in co-relation 18224. Up to 312 conditions per place. [2021-03-25 12:23:53,542 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 12:23:53,571 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:53,571 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:53,571 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 261 [2021-03-25 12:23:53,571 INFO L480 AbstractCegarLoop]: Abstraction has has 532 places, 512 transitions, 15848 flow [2021-03-25 12:23:53,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:53,571 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:53,571 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:53,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2021-03-25 12:23:53,572 INFO L428 AbstractCegarLoop]: === Iteration 486 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:53,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:53,572 INFO L82 PathProgramCache]: Analyzing trace with hash 762274043, now seen corresponding path program 77 times [2021-03-25 12:23:53,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:53,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071304576] [2021-03-25 12:23:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:53,577 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:53,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:53,582 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:53,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:53,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:53,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:53,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:53,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:53,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:53,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:53,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:53,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:53,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:53,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:53,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:53,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:53,647 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:53,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:53,653 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:53,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:53,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071304576] [2021-03-25 12:23:53,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:53,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:23:53,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714268710] [2021-03-25 12:23:53,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:23:53,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:53,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:23:53,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:23:53,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:53,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 512 transitions, 15848 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:53,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:53,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:53,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:54,280 INFO L129 PetriNetUnfolder]: 364/1008 cut-off events. [2021-03-25 12:23:54,281 INFO L130 PetriNetUnfolder]: For 166776/166837 co-relation queries the response was YES. [2021-03-25 12:23:54,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19582 conditions, 1008 events. 364/1008 cut-off events. For 166776/166837 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7715 event pairs, 49 based on Foata normal form. 32/1040 useless extension candidates. Maximal degree in co-relation 19335. Up to 784 conditions per place. [2021-03-25 12:23:54,300 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 462 selfloop transitions, 42 changer transitions 6/518 dead transitions. [2021-03-25 12:23:54,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 518 transitions, 17229 flow [2021-03-25 12:23:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:23:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:23:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 337 transitions. [2021-03-25 12:23:54,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22862957937584802 [2021-03-25 12:23:54,302 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 337 transitions. [2021-03-25 12:23:54,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 337 transitions. [2021-03-25 12:23:54,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:54,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 337 transitions. [2021-03-25 12:23:54,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.636363636363637) internal successors, (337), 11 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:54,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:54,303 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:54,303 INFO L185 Difference]: Start difference. First operand has 532 places, 512 transitions, 15848 flow. Second operand 11 states and 337 transitions. [2021-03-25 12:23:54,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 518 transitions, 17229 flow [2021-03-25 12:23:55,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 518 transitions, 16938 flow, removed 4 selfloop flow, removed 18 redundant places. [2021-03-25 12:23:55,181 INFO L241 Difference]: Finished difference. Result has 528 places, 510 transitions, 15580 flow [2021-03-25 12:23:55,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=15561, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15580, PETRI_PLACES=528, PETRI_TRANSITIONS=510} [2021-03-25 12:23:55,181 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 481 predicate places. [2021-03-25 12:23:55,181 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:55,182 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 528 places, 510 transitions, 15580 flow [2021-03-25 12:23:55,182 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 528 places, 510 transitions, 15580 flow [2021-03-25 12:23:55,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 527 places, 510 transitions, 15580 flow [2021-03-25 12:23:55,419 INFO L129 PetriNetUnfolder]: 347/989 cut-off events. [2021-03-25 12:23:55,419 INFO L130 PetriNetUnfolder]: For 154226/154249 co-relation queries the response was YES. [2021-03-25 12:23:55,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18264 conditions, 989 events. 347/989 cut-off events. For 154226/154249 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7755 event pairs, 36 based on Foata normal form. 12/1001 useless extension candidates. Maximal degree in co-relation 17996. Up to 310 conditions per place. [2021-03-25 12:23:55,446 INFO L142 LiptonReduction]: Number of co-enabled transitions 836 [2021-03-25 12:23:55,475 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:55,475 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:55,476 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 295 [2021-03-25 12:23:55,476 INFO L480 AbstractCegarLoop]: Abstraction has has 527 places, 510 transitions, 15580 flow [2021-03-25 12:23:55,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:55,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:55,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:55,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2021-03-25 12:23:55,476 INFO L428 AbstractCegarLoop]: === Iteration 487 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:55,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1234138339, now seen corresponding path program 78 times [2021-03-25 12:23:55,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:55,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181029069] [2021-03-25 12:23:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:55,482 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:55,487 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:55,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:55,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:55,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:55,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:55,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:55,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:55,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:55,568 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:23:55,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:55,572 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:55,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:55,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181029069] [2021-03-25 12:23:55,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:55,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:55,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671956532] [2021-03-25 12:23:55,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:55,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:55,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:55,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:55,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:55,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 510 transitions, 15580 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:55,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:55,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:55,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:56,198 INFO L129 PetriNetUnfolder]: 361/1002 cut-off events. [2021-03-25 12:23:56,198 INFO L130 PetriNetUnfolder]: For 165126/165206 co-relation queries the response was YES. [2021-03-25 12:23:56,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19337 conditions, 1002 events. 361/1002 cut-off events. For 165126/165206 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7660 event pairs, 50 based on Foata normal form. 32/1033 useless extension candidates. Maximal degree in co-relation 19073. Up to 782 conditions per place. [2021-03-25 12:23:56,219 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 460 selfloop transitions, 43 changer transitions 2/513 dead transitions. [2021-03-25 12:23:56,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 513 transitions, 16705 flow [2021-03-25 12:23:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:56,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 361 transitions. [2021-03-25 12:23:56,220 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22450248756218905 [2021-03-25 12:23:56,220 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 361 transitions. [2021-03-25 12:23:56,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 361 transitions. [2021-03-25 12:23:56,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:56,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 361 transitions. [2021-03-25 12:23:56,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.083333333333332) internal successors, (361), 12 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:56,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:56,222 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:56,222 INFO L185 Difference]: Start difference. First operand has 527 places, 510 transitions, 15580 flow. Second operand 12 states and 361 transitions. [2021-03-25 12:23:56,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 513 transitions, 16705 flow [2021-03-25 12:23:57,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 513 transitions, 16480 flow, removed 43 selfloop flow, removed 13 redundant places. [2021-03-25 12:23:57,060 INFO L241 Difference]: Finished difference. Result has 527 places, 509 transitions, 15434 flow [2021-03-25 12:23:57,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=15359, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15434, PETRI_PLACES=527, PETRI_TRANSITIONS=509} [2021-03-25 12:23:57,061 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 480 predicate places. [2021-03-25 12:23:57,061 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:57,061 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 527 places, 509 transitions, 15434 flow [2021-03-25 12:23:57,061 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 527 places, 509 transitions, 15434 flow [2021-03-25 12:23:57,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 526 places, 509 transitions, 15434 flow [2021-03-25 12:23:57,277 INFO L129 PetriNetUnfolder]: 346/983 cut-off events. [2021-03-25 12:23:57,277 INFO L130 PetriNetUnfolder]: For 153675/153703 co-relation queries the response was YES. [2021-03-25 12:23:57,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18114 conditions, 983 events. 346/983 cut-off events. For 153675/153703 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7683 event pairs, 39 based on Foata normal form. 11/993 useless extension candidates. Maximal degree in co-relation 17848. Up to 302 conditions per place. [2021-03-25 12:23:57,304 INFO L142 LiptonReduction]: Number of co-enabled transitions 832 [2021-03-25 12:23:57,333 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:57,333 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:57,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-25 12:23:57,333 INFO L480 AbstractCegarLoop]: Abstraction has has 526 places, 509 transitions, 15434 flow [2021-03-25 12:23:57,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:57,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:57,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:57,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2021-03-25 12:23:57,333 INFO L428 AbstractCegarLoop]: === Iteration 488 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash 991982585, now seen corresponding path program 79 times [2021-03-25 12:23:57,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:57,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767740646] [2021-03-25 12:23:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:57,339 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:57,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:57,344 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:57,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:57,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:57,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:57,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:57,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:57,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:57,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:57,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:57,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:57,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:57,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:57,410 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:57,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:57,425 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:57,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:57,431 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:57,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:57,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:57,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767740646] [2021-03-25 12:23:57,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:57,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:57,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683565768] [2021-03-25 12:23:57,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:57,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:57,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:57,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:57,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:57,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 509 transitions, 15434 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:57,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:57,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:57,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:58,055 INFO L129 PetriNetUnfolder]: 360/1001 cut-off events. [2021-03-25 12:23:58,055 INFO L130 PetriNetUnfolder]: For 163160/163228 co-relation queries the response was YES. [2021-03-25 12:23:58,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19204 conditions, 1001 events. 360/1001 cut-off events. For 163160/163228 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7674 event pairs, 50 based on Foata normal form. 39/1040 useless extension candidates. Maximal degree in co-relation 18942. Up to 768 conditions per place. [2021-03-25 12:23:58,074 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 444 selfloop transitions, 58 changer transitions 2/512 dead transitions. [2021-03-25 12:23:58,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 512 transitions, 16541 flow [2021-03-25 12:23:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2021-03-25 12:23:58,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2263681592039801 [2021-03-25 12:23:58,076 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 364 transitions. [2021-03-25 12:23:58,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 364 transitions. [2021-03-25 12:23:58,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:58,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 364 transitions. [2021-03-25 12:23:58,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:58,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:58,077 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:58,077 INFO L185 Difference]: Start difference. First operand has 526 places, 509 transitions, 15434 flow. Second operand 12 states and 364 transitions. [2021-03-25 12:23:58,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 512 transitions, 16541 flow [2021-03-25 12:23:58,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 512 transitions, 16412 flow, removed 15 selfloop flow, removed 11 redundant places. [2021-03-25 12:23:58,941 INFO L241 Difference]: Finished difference. Result has 528 places, 508 transitions, 15372 flow [2021-03-25 12:23:58,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=15305, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15372, PETRI_PLACES=528, PETRI_TRANSITIONS=508} [2021-03-25 12:23:58,941 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 481 predicate places. [2021-03-25 12:23:58,941 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:23:58,941 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 528 places, 508 transitions, 15372 flow [2021-03-25 12:23:58,941 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 528 places, 508 transitions, 15372 flow [2021-03-25 12:23:58,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 528 places, 508 transitions, 15372 flow [2021-03-25 12:23:59,163 INFO L129 PetriNetUnfolder]: 345/982 cut-off events. [2021-03-25 12:23:59,163 INFO L130 PetriNetUnfolder]: For 150893/150915 co-relation queries the response was YES. [2021-03-25 12:23:59,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18059 conditions, 982 events. 345/982 cut-off events. For 150893/150915 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7645 event pairs, 36 based on Foata normal form. 10/990 useless extension candidates. Maximal degree in co-relation 17791. Up to 303 conditions per place. [2021-03-25 12:23:59,188 INFO L142 LiptonReduction]: Number of co-enabled transitions 832 [2021-03-25 12:23:59,216 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:23:59,216 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:23:59,216 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 275 [2021-03-25 12:23:59,216 INFO L480 AbstractCegarLoop]: Abstraction has has 528 places, 508 transitions, 15372 flow [2021-03-25 12:23:59,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:59,216 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:23:59,216 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:23:59,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2021-03-25 12:23:59,216 INFO L428 AbstractCegarLoop]: === Iteration 489 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:23:59,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:23:59,216 INFO L82 PathProgramCache]: Analyzing trace with hash 393103189, now seen corresponding path program 80 times [2021-03-25 12:23:59,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:23:59,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251108700] [2021-03-25 12:23:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:23:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:23:59,222 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:23:59,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:23:59,227 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:23:59,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:23:59,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:59,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:59,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:59,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:59,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:59,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:59,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:59,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:59,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:23:59,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:23:59,295 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:23:59,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:23:59,303 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:23:59,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:23:59,318 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:23:59,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:23:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:23:59,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251108700] [2021-03-25 12:23:59,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:23:59,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:23:59,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136163807] [2021-03-25 12:23:59,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:23:59,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:23:59,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:23:59,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:23:59,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:23:59,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 508 transitions, 15372 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:59,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:23:59,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:23:59,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:23:59,937 INFO L129 PetriNetUnfolder]: 359/998 cut-off events. [2021-03-25 12:23:59,937 INFO L130 PetriNetUnfolder]: For 162022/162102 co-relation queries the response was YES. [2021-03-25 12:23:59,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19123 conditions, 998 events. 359/998 cut-off events. For 162022/162102 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7642 event pairs, 50 based on Foata normal form. 32/1029 useless extension candidates. Maximal degree in co-relation 18861. Up to 780 conditions per place. [2021-03-25 12:23:59,957 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 459 selfloop transitions, 40 changer transitions 3/510 dead transitions. [2021-03-25 12:23:59,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 510 transitions, 16397 flow [2021-03-25 12:23:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:23:59,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:23:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 359 transitions. [2021-03-25 12:23:59,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2232587064676617 [2021-03-25 12:23:59,959 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 359 transitions. [2021-03-25 12:23:59,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 359 transitions. [2021-03-25 12:23:59,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:23:59,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 359 transitions. [2021-03-25 12:23:59,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.916666666666668) internal successors, (359), 12 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:59,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:59,960 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:23:59,960 INFO L185 Difference]: Start difference. First operand has 528 places, 508 transitions, 15372 flow. Second operand 12 states and 359 transitions. [2021-03-25 12:23:59,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 510 transitions, 16397 flow [2021-03-25 12:24:00,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 510 transitions, 16185 flow, removed 23 selfloop flow, removed 13 redundant places. [2021-03-25 12:24:00,777 INFO L241 Difference]: Finished difference. Result has 527 places, 505 transitions, 15126 flow [2021-03-25 12:24:00,777 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=15160, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15126, PETRI_PLACES=527, PETRI_TRANSITIONS=505} [2021-03-25 12:24:00,777 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 480 predicate places. [2021-03-25 12:24:00,777 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:00,777 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 527 places, 505 transitions, 15126 flow [2021-03-25 12:24:00,777 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 527 places, 505 transitions, 15126 flow [2021-03-25 12:24:00,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 525 places, 505 transitions, 15126 flow [2021-03-25 12:24:00,978 INFO L129 PetriNetUnfolder]: 345/976 cut-off events. [2021-03-25 12:24:00,978 INFO L130 PetriNetUnfolder]: For 150963/150973 co-relation queries the response was YES. [2021-03-25 12:24:00,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17927 conditions, 976 events. 345/976 cut-off events. For 150963/150973 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7598 event pairs, 40 based on Foata normal form. 3/976 useless extension candidates. Maximal degree in co-relation 17686. Up to 300 conditions per place. [2021-03-25 12:24:01,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 828 [2021-03-25 12:24:01,031 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:01,031 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:01,031 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-25 12:24:01,031 INFO L480 AbstractCegarLoop]: Abstraction has has 525 places, 505 transitions, 15126 flow [2021-03-25 12:24:01,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:01,031 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:01,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:01,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2021-03-25 12:24:01,032 INFO L428 AbstractCegarLoop]: === Iteration 490 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:01,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:01,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1507613605, now seen corresponding path program 81 times [2021-03-25 12:24:01,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:01,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436194715] [2021-03-25 12:24:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:01,037 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:01,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:01,042 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:01,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:01,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:01,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:01,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:01,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:01,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:01,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:01,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:01,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:01,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:01,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:01,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:01,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:01,108 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:01,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:01,124 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:01,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:01,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:01,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436194715] [2021-03-25 12:24:01,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:01,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:01,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306193648] [2021-03-25 12:24:01,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:01,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:01,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:01,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:01,127 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:01,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 505 transitions, 15126 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:01,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:01,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:01,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:01,766 INFO L129 PetriNetUnfolder]: 358/996 cut-off events. [2021-03-25 12:24:01,766 INFO L130 PetriNetUnfolder]: For 160479/160559 co-relation queries the response was YES. [2021-03-25 12:24:01,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18988 conditions, 996 events. 358/996 cut-off events. For 160479/160559 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7623 event pairs, 48 based on Foata normal form. 42/1038 useless extension candidates. Maximal degree in co-relation 18744. Up to 753 conditions per place. [2021-03-25 12:24:01,786 INFO L132 encePairwiseOnDemand]: 118/134 looper letters, 422 selfloop transitions, 75 changer transitions 4/509 dead transitions. [2021-03-25 12:24:01,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 509 transitions, 16178 flow [2021-03-25 12:24:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:24:01,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:24:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 344 transitions. [2021-03-25 12:24:01,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23337856173677068 [2021-03-25 12:24:01,788 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 344 transitions. [2021-03-25 12:24:01,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 344 transitions. [2021-03-25 12:24:01,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:01,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 344 transitions. [2021-03-25 12:24:01,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:01,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:01,789 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 134.0) internal successors, (1608), 12 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:01,789 INFO L185 Difference]: Start difference. First operand has 525 places, 505 transitions, 15126 flow. Second operand 11 states and 344 transitions. [2021-03-25 12:24:01,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 509 transitions, 16178 flow [2021-03-25 12:24:02,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 509 transitions, 16066 flow, removed 1 selfloop flow, removed 13 redundant places. [2021-03-25 12:24:02,651 INFO L241 Difference]: Finished difference. Result has 525 places, 503 transitions, 15197 flow [2021-03-25 12:24:02,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=15014, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15197, PETRI_PLACES=525, PETRI_TRANSITIONS=503} [2021-03-25 12:24:02,651 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 478 predicate places. [2021-03-25 12:24:02,651 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:02,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 525 places, 503 transitions, 15197 flow [2021-03-25 12:24:02,652 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 525 places, 503 transitions, 15197 flow [2021-03-25 12:24:02,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 523 places, 503 transitions, 15197 flow [2021-03-25 12:24:02,869 INFO L129 PetriNetUnfolder]: 344/974 cut-off events. [2021-03-25 12:24:02,869 INFO L130 PetriNetUnfolder]: For 153866/153876 co-relation queries the response was YES. [2021-03-25 12:24:02,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17908 conditions, 974 events. 344/974 cut-off events. For 153866/153876 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7618 event pairs, 44 based on Foata normal form. 9/982 useless extension candidates. Maximal degree in co-relation 17639. Up to 298 conditions per place. [2021-03-25 12:24:02,894 INFO L142 LiptonReduction]: Number of co-enabled transitions 828 [2021-03-25 12:24:02,921 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:02,921 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:02,921 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 270 [2021-03-25 12:24:02,921 INFO L480 AbstractCegarLoop]: Abstraction has has 523 places, 503 transitions, 15197 flow [2021-03-25 12:24:02,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:02,921 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:02,921 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:02,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2021-03-25 12:24:02,921 INFO L428 AbstractCegarLoop]: === Iteration 491 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash 374669163, now seen corresponding path program 82 times [2021-03-25 12:24:02,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:02,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519981092] [2021-03-25 12:24:02,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:02,938 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:02,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:02,943 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:02,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:02,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:02,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:02,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:02,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:02,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:02,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:02,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:02,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:02,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:02,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:03,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:03,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:03,023 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:03,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:03,039 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:03,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:03,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519981092] [2021-03-25 12:24:03,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:03,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:03,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516886263] [2021-03-25 12:24:03,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:03,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:03,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:03,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:03,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:03,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 503 transitions, 15197 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:03,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:03,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:03,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:03,640 INFO L129 PetriNetUnfolder]: 357/990 cut-off events. [2021-03-25 12:24:03,640 INFO L130 PetriNetUnfolder]: For 160267/160347 co-relation queries the response was YES. [2021-03-25 12:24:03,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19027 conditions, 990 events. 357/990 cut-off events. For 160267/160347 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7568 event pairs, 50 based on Foata normal form. 32/1021 useless extension candidates. Maximal degree in co-relation 18764. Up to 776 conditions per place. [2021-03-25 12:24:03,659 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 457 selfloop transitions, 36 changer transitions 4/505 dead transitions. [2021-03-25 12:24:03,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 505 transitions, 16212 flow [2021-03-25 12:24:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 356 transitions. [2021-03-25 12:24:03,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22139303482587064 [2021-03-25 12:24:03,660 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 356 transitions. [2021-03-25 12:24:03,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 356 transitions. [2021-03-25 12:24:03,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:03,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 356 transitions. [2021-03-25 12:24:03,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.666666666666668) internal successors, (356), 12 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:03,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:03,661 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:03,661 INFO L185 Difference]: Start difference. First operand has 523 places, 503 transitions, 15197 flow. Second operand 12 states and 356 transitions. [2021-03-25 12:24:03,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 505 transitions, 16212 flow [2021-03-25 12:24:04,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 505 transitions, 15962 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-25 12:24:04,394 INFO L241 Difference]: Finished difference. Result has 522 places, 499 transitions, 14908 flow [2021-03-25 12:24:04,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=14947, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14908, PETRI_PLACES=522, PETRI_TRANSITIONS=499} [2021-03-25 12:24:04,395 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 475 predicate places. [2021-03-25 12:24:04,395 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:04,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 522 places, 499 transitions, 14908 flow [2021-03-25 12:24:04,395 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 522 places, 499 transitions, 14908 flow [2021-03-25 12:24:04,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 516 places, 499 transitions, 14908 flow [2021-03-25 12:24:04,593 INFO L129 PetriNetUnfolder]: 341/965 cut-off events. [2021-03-25 12:24:04,593 INFO L130 PetriNetUnfolder]: For 149456/149480 co-relation queries the response was YES. [2021-03-25 12:24:04,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17612 conditions, 965 events. 341/965 cut-off events. For 149456/149480 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7477 event pairs, 40 based on Foata normal form. 14/978 useless extension candidates. Maximal degree in co-relation 17372. Up to 296 conditions per place. [2021-03-25 12:24:04,618 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:24:04,646 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:04,646 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:04,646 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-03-25 12:24:04,646 INFO L480 AbstractCegarLoop]: Abstraction has has 516 places, 499 transitions, 14908 flow [2021-03-25 12:24:04,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:04,646 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:04,646 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:04,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2021-03-25 12:24:04,646 INFO L428 AbstractCegarLoop]: === Iteration 492 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:04,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:04,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1005659443, now seen corresponding path program 83 times [2021-03-25 12:24:04,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:04,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712871079] [2021-03-25 12:24:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:04,654 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:04,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:04,659 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:04,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:04,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:04,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:04,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:04,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:04,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:04,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:04,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:04,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:04,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:04,741 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:04,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:04,757 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:04,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:04,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:04,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712871079] [2021-03-25 12:24:04,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:04,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:04,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884471907] [2021-03-25 12:24:04,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:04,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:04,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:04,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:04,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:04,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 499 transitions, 14908 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:04,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:04,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:04,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:05,358 INFO L129 PetriNetUnfolder]: 355/992 cut-off events. [2021-03-25 12:24:05,358 INFO L130 PetriNetUnfolder]: For 157713/157774 co-relation queries the response was YES. [2021-03-25 12:24:05,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18833 conditions, 992 events. 355/992 cut-off events. For 157713/157774 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7595 event pairs, 50 based on Foata normal form. 32/1024 useless extension candidates. Maximal degree in co-relation 18586. Up to 761 conditions per place. [2021-03-25 12:24:05,377 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 446 selfloop transitions, 43 changer transitions 6/503 dead transitions. [2021-03-25 12:24:05,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 503 transitions, 15988 flow [2021-03-25 12:24:05,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 359 transitions. [2021-03-25 12:24:05,379 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2232587064676617 [2021-03-25 12:24:05,379 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 359 transitions. [2021-03-25 12:24:05,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 359 transitions. [2021-03-25 12:24:05,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:05,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 359 transitions. [2021-03-25 12:24:05,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.916666666666668) internal successors, (359), 12 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:05,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:05,380 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:05,380 INFO L185 Difference]: Start difference. First operand has 516 places, 499 transitions, 14908 flow. Second operand 12 states and 359 transitions. [2021-03-25 12:24:05,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 503 transitions, 15988 flow [2021-03-25 12:24:06,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 503 transitions, 15747 flow, removed 16 selfloop flow, removed 14 redundant places. [2021-03-25 12:24:06,204 INFO L241 Difference]: Finished difference. Result has 515 places, 494 transitions, 14669 flow [2021-03-25 12:24:06,205 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=14669, PETRI_DIFFERENCE_MINUEND_PLACES=502, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14669, PETRI_PLACES=515, PETRI_TRANSITIONS=494} [2021-03-25 12:24:06,205 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 468 predicate places. [2021-03-25 12:24:06,205 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:06,205 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 515 places, 494 transitions, 14669 flow [2021-03-25 12:24:06,205 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 515 places, 494 transitions, 14669 flow [2021-03-25 12:24:06,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 514 places, 494 transitions, 14669 flow [2021-03-25 12:24:06,418 INFO L129 PetriNetUnfolder]: 335/941 cut-off events. [2021-03-25 12:24:06,419 INFO L130 PetriNetUnfolder]: For 144772/144776 co-relation queries the response was YES. [2021-03-25 12:24:06,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17317 conditions, 941 events. 335/941 cut-off events. For 144772/144776 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7241 event pairs, 36 based on Foata normal form. 3/943 useless extension candidates. Maximal degree in co-relation 17077. Up to 294 conditions per place. [2021-03-25 12:24:06,442 INFO L142 LiptonReduction]: Number of co-enabled transitions 812 [2021-03-25 12:24:06,469 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:06,469 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:06,469 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-03-25 12:24:06,469 INFO L480 AbstractCegarLoop]: Abstraction has has 514 places, 494 transitions, 14669 flow [2021-03-25 12:24:06,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:06,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:06,469 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:06,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2021-03-25 12:24:06,470 INFO L428 AbstractCegarLoop]: === Iteration 493 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:06,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1471196387, now seen corresponding path program 84 times [2021-03-25 12:24:06,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:06,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019876870] [2021-03-25 12:24:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:06,475 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:06,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:06,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:06,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:06,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:06,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:06,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:06,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:06,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:06,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:06,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:06,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:06,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:06,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:06,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:06,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:06,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:06,577 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:06,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:06,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019876870] [2021-03-25 12:24:06,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:06,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:06,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240447779] [2021-03-25 12:24:06,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:06,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:06,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:06,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:06,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:06,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 494 transitions, 14669 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:06,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:06,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:06,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:07,232 INFO L129 PetriNetUnfolder]: 353/980 cut-off events. [2021-03-25 12:24:07,232 INFO L130 PetriNetUnfolder]: For 142350/142430 co-relation queries the response was YES. [2021-03-25 12:24:07,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18412 conditions, 980 events. 353/980 cut-off events. For 142350/142430 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7436 event pairs, 43 based on Foata normal form. 42/1022 useless extension candidates. Maximal degree in co-relation 18168. Up to 740 conditions per place. [2021-03-25 12:24:07,251 INFO L132 encePairwiseOnDemand]: 118/134 looper letters, 412 selfloop transitions, 70 changer transitions 6/496 dead transitions. [2021-03-25 12:24:07,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 496 transitions, 15677 flow [2021-03-25 12:24:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 371 transitions. [2021-03-25 12:24:07,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23072139303482586 [2021-03-25 12:24:07,252 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 371 transitions. [2021-03-25 12:24:07,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 371 transitions. [2021-03-25 12:24:07,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:07,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 371 transitions. [2021-03-25 12:24:07,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:07,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:07,253 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:07,253 INFO L185 Difference]: Start difference. First operand has 514 places, 494 transitions, 14669 flow. Second operand 12 states and 371 transitions. [2021-03-25 12:24:07,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 496 transitions, 15677 flow [2021-03-25 12:24:07,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 496 transitions, 15509 flow, removed 33 selfloop flow, removed 13 redundant places. [2021-03-25 12:24:07,997 INFO L241 Difference]: Finished difference. Result has 513 places, 488 transitions, 14592 flow [2021-03-25 12:24:07,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=14501, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14592, PETRI_PLACES=513, PETRI_TRANSITIONS=488} [2021-03-25 12:24:07,997 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 466 predicate places. [2021-03-25 12:24:07,997 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:07,997 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 513 places, 488 transitions, 14592 flow [2021-03-25 12:24:07,998 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 513 places, 488 transitions, 14592 flow [2021-03-25 12:24:08,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 488 transitions, 14592 flow [2021-03-25 12:24:08,188 INFO L129 PetriNetUnfolder]: 334/936 cut-off events. [2021-03-25 12:24:08,188 INFO L130 PetriNetUnfolder]: For 144764/144792 co-relation queries the response was YES. [2021-03-25 12:24:08,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17283 conditions, 936 events. 334/936 cut-off events. For 144764/144792 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7164 event pairs, 32 based on Foata normal form. 11/947 useless extension candidates. Maximal degree in co-relation 17033. Up to 294 conditions per place. [2021-03-25 12:24:08,212 INFO L142 LiptonReduction]: Number of co-enabled transitions 808 [2021-03-25 12:24:08,239 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:08,239 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:08,239 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 242 [2021-03-25 12:24:08,239 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 488 transitions, 14592 flow [2021-03-25 12:24:08,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:08,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:08,239 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:08,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2021-03-25 12:24:08,239 INFO L428 AbstractCegarLoop]: === Iteration 494 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:08,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:08,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1140511317, now seen corresponding path program 85 times [2021-03-25 12:24:08,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:08,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550151228] [2021-03-25 12:24:08,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:08,245 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:08,250 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:08,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:08,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:08,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:08,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:08,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:08,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:08,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:08,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:08,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:08,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:08,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:08,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:08,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:08,331 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:08,347 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:08,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:08,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550151228] [2021-03-25 12:24:08,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:08,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:08,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149642158] [2021-03-25 12:24:08,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:08,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:08,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:08,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:08,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:08,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 488 transitions, 14592 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:08,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:08,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:08,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:08,924 INFO L129 PetriNetUnfolder]: 351/971 cut-off events. [2021-03-25 12:24:08,924 INFO L130 PetriNetUnfolder]: For 142067/142147 co-relation queries the response was YES. [2021-03-25 12:24:08,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18352 conditions, 971 events. 351/971 cut-off events. For 142067/142147 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7317 event pairs, 49 based on Foata normal form. 32/1002 useless extension candidates. Maximal degree in co-relation 18097. Up to 752 conditions per place. [2021-03-25 12:24:08,943 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 434 selfloop transitions, 32 changer transitions 16/490 dead transitions. [2021-03-25 12:24:08,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 522 places, 490 transitions, 15577 flow [2021-03-25 12:24:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:24:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:24:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 383 transitions. [2021-03-25 12:24:08,944 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2198622273249139 [2021-03-25 12:24:08,944 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 383 transitions. [2021-03-25 12:24:08,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 383 transitions. [2021-03-25 12:24:08,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:08,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 383 transitions. [2021-03-25 12:24:08,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.46153846153846) internal successors, (383), 13 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:08,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:08,945 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 134.0) internal successors, (1876), 14 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:08,945 INFO L185 Difference]: Start difference. First operand has 510 places, 488 transitions, 14592 flow. Second operand 13 states and 383 transitions. [2021-03-25 12:24:08,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 522 places, 490 transitions, 15577 flow [2021-03-25 12:24:09,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 490 transitions, 15366 flow, removed 18 selfloop flow, removed 16 redundant places. [2021-03-25 12:24:09,689 INFO L241 Difference]: Finished difference. Result has 507 places, 472 transitions, 14025 flow [2021-03-25 12:24:09,689 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=14381, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14025, PETRI_PLACES=507, PETRI_TRANSITIONS=472} [2021-03-25 12:24:09,689 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 460 predicate places. [2021-03-25 12:24:09,689 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:09,689 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 472 transitions, 14025 flow [2021-03-25 12:24:09,689 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 472 transitions, 14025 flow [2021-03-25 12:24:09,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 493 places, 472 transitions, 14025 flow [2021-03-25 12:24:09,892 INFO L129 PetriNetUnfolder]: 335/918 cut-off events. [2021-03-25 12:24:09,892 INFO L130 PetriNetUnfolder]: For 144908/144977 co-relation queries the response was YES. [2021-03-25 12:24:09,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17042 conditions, 918 events. 335/918 cut-off events. For 144908/144977 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6920 event pairs, 41 based on Foata normal form. 11/926 useless extension candidates. Maximal degree in co-relation 16807. Up to 297 conditions per place. [2021-03-25 12:24:09,913 INFO L142 LiptonReduction]: Number of co-enabled transitions 788 [2021-03-25 12:24:09,937 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:09,937 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:09,937 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 12:24:09,937 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 472 transitions, 14025 flow [2021-03-25 12:24:09,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:09,938 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:09,938 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:09,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2021-03-25 12:24:09,938 INFO L428 AbstractCegarLoop]: === Iteration 495 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash 131918763, now seen corresponding path program 86 times [2021-03-25 12:24:09,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:09,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742363976] [2021-03-25 12:24:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:09,943 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:09,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:09,948 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:09,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:09,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:09,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:09,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:09,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:09,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:09,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:09,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:10,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:10,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:10,019 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:10,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:10,034 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:10,050 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:10,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:10,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742363976] [2021-03-25 12:24:10,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:10,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:10,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883367488] [2021-03-25 12:24:10,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:10,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:10,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:10,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:10,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:10,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 472 transitions, 14025 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:10,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:10,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:10,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:10,588 INFO L129 PetriNetUnfolder]: 347/949 cut-off events. [2021-03-25 12:24:10,588 INFO L130 PetriNetUnfolder]: For 138662/138742 co-relation queries the response was YES. [2021-03-25 12:24:10,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17923 conditions, 949 events. 347/949 cut-off events. For 138662/138742 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 7070 event pairs, 49 based on Foata normal form. 32/980 useless extension candidates. Maximal degree in co-relation 17684. Up to 743 conditions per place. [2021-03-25 12:24:10,607 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 427 selfloop transitions, 36 changer transitions 3/474 dead transitions. [2021-03-25 12:24:10,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 474 transitions, 14978 flow [2021-03-25 12:24:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 356 transitions. [2021-03-25 12:24:10,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22139303482587064 [2021-03-25 12:24:10,608 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 356 transitions. [2021-03-25 12:24:10,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 356 transitions. [2021-03-25 12:24:10,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:10,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 356 transitions. [2021-03-25 12:24:10,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.666666666666668) internal successors, (356), 12 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:10,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:10,610 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:10,610 INFO L185 Difference]: Start difference. First operand has 493 places, 472 transitions, 14025 flow. Second operand 12 states and 356 transitions. [2021-03-25 12:24:10,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 474 transitions, 14978 flow [2021-03-25 12:24:11,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 474 transitions, 14354 flow, removed 67 selfloop flow, removed 36 redundant places. [2021-03-25 12:24:11,230 INFO L241 Difference]: Finished difference. Result has 469 places, 469 transitions, 13399 flow [2021-03-25 12:24:11,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=13401, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13399, PETRI_PLACES=469, PETRI_TRANSITIONS=469} [2021-03-25 12:24:11,230 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 422 predicate places. [2021-03-25 12:24:11,230 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:11,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 469 places, 469 transitions, 13399 flow [2021-03-25 12:24:11,230 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 469 places, 469 transitions, 13399 flow [2021-03-25 12:24:11,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 465 places, 469 transitions, 13399 flow [2021-03-25 12:24:11,396 INFO L129 PetriNetUnfolder]: 331/906 cut-off events. [2021-03-25 12:24:11,396 INFO L130 PetriNetUnfolder]: For 107372/107431 co-relation queries the response was YES. [2021-03-25 12:24:11,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15700 conditions, 906 events. 331/906 cut-off events. For 107372/107431 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6753 event pairs, 37 based on Foata normal form. 15/920 useless extension candidates. Maximal degree in co-relation 15481. Up to 289 conditions per place. [2021-03-25 12:24:11,416 INFO L142 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-25 12:24:11,441 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:11,441 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:11,441 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-03-25 12:24:11,441 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 469 transitions, 13399 flow [2021-03-25 12:24:11,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:11,441 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:11,441 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:11,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2021-03-25 12:24:11,441 INFO L428 AbstractCegarLoop]: === Iteration 496 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:11,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:11,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1231712749, now seen corresponding path program 87 times [2021-03-25 12:24:11,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:11,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927774261] [2021-03-25 12:24:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:11,447 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:11,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:11,452 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:11,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:11,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:11,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:11,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:11,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:11,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:11,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:11,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:11,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:11,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:11,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:11,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:11,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:11,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:11,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:11,548 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:11,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:11,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927774261] [2021-03-25 12:24:11,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:11,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:11,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266977931] [2021-03-25 12:24:11,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:11,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:11,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:11,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:11,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:11,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 469 transitions, 13399 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:11,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:11,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:11,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:12,156 INFO L129 PetriNetUnfolder]: 347/941 cut-off events. [2021-03-25 12:24:12,156 INFO L130 PetriNetUnfolder]: For 110702/110789 co-relation queries the response was YES. [2021-03-25 12:24:12,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16864 conditions, 941 events. 347/941 cut-off events. For 110702/110789 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6976 event pairs, 43 based on Foata normal form. 49/990 useless extension candidates. Maximal degree in co-relation 16645. Up to 721 conditions per place. [2021-03-25 12:24:12,172 INFO L132 encePairwiseOnDemand]: 118/134 looper letters, 401 selfloop transitions, 47 changer transitions 15/471 dead transitions. [2021-03-25 12:24:12,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 471 transitions, 14357 flow [2021-03-25 12:24:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:12,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 369 transitions. [2021-03-25 12:24:12,174 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2294776119402985 [2021-03-25 12:24:12,174 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 369 transitions. [2021-03-25 12:24:12,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 369 transitions. [2021-03-25 12:24:12,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:12,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 369 transitions. [2021-03-25 12:24:12,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.75) internal successors, (369), 12 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:12,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:12,175 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:12,175 INFO L185 Difference]: Start difference. First operand has 465 places, 469 transitions, 13399 flow. Second operand 12 states and 369 transitions. [2021-03-25 12:24:12,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 471 transitions, 14357 flow [2021-03-25 12:24:12,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 471 transitions, 14199 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:24:12,659 INFO L241 Difference]: Finished difference. Result has 465 places, 454 transitions, 13134 flow [2021-03-25 12:24:12,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=13241, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13134, PETRI_PLACES=465, PETRI_TRANSITIONS=454} [2021-03-25 12:24:12,659 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 418 predicate places. [2021-03-25 12:24:12,659 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:12,659 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 454 transitions, 13134 flow [2021-03-25 12:24:12,659 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 454 transitions, 13134 flow [2021-03-25 12:24:12,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 449 places, 454 transitions, 13134 flow [2021-03-25 12:24:12,820 INFO L129 PetriNetUnfolder]: 330/895 cut-off events. [2021-03-25 12:24:12,820 INFO L130 PetriNetUnfolder]: For 106873/106929 co-relation queries the response was YES. [2021-03-25 12:24:12,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15467 conditions, 895 events. 330/895 cut-off events. For 106873/106929 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6607 event pairs, 38 based on Foata normal form. 16/911 useless extension candidates. Maximal degree in co-relation 15227. Up to 288 conditions per place. [2021-03-25 12:24:12,840 INFO L142 LiptonReduction]: Number of co-enabled transitions 780 [2021-03-25 12:24:12,863 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:12,863 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:12,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 204 [2021-03-25 12:24:12,863 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 454 transitions, 13134 flow [2021-03-25 12:24:12,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:12,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:12,864 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:12,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2021-03-25 12:24:12,864 INFO L428 AbstractCegarLoop]: === Iteration 497 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:12,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1218754354, now seen corresponding path program 1 times [2021-03-25 12:24:12,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:12,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801095305] [2021-03-25 12:24:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:12,869 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:12,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:12,874 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:12,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:12,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:12,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:12,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:12,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:12,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:12,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:12,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:12,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:12,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:12,939 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:12,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:12,954 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:12,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:12,970 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:12,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801095305] [2021-03-25 12:24:12,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:12,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:12,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969150011] [2021-03-25 12:24:12,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:12,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:12,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:12,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:12,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:12,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 454 transitions, 13134 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:12,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:12,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:12,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:13,577 INFO L129 PetriNetUnfolder]: 346/918 cut-off events. [2021-03-25 12:24:13,577 INFO L130 PetriNetUnfolder]: For 108635/108710 co-relation queries the response was YES. [2021-03-25 12:24:13,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 918 events. 346/918 cut-off events. For 108635/108710 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6643 event pairs, 43 based on Foata normal form. 59/977 useless extension candidates. Maximal degree in co-relation 16474. Up to 674 conditions per place. [2021-03-25 12:24:13,592 INFO L132 encePairwiseOnDemand]: 120/134 looper letters, 357 selfloop transitions, 99 changer transitions 3/467 dead transitions. [2021-03-25 12:24:13,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 467 transitions, 14668 flow [2021-03-25 12:24:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:24:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:24:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 431 transitions. [2021-03-25 12:24:13,594 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22974413646055436 [2021-03-25 12:24:13,594 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 431 transitions. [2021-03-25 12:24:13,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 431 transitions. [2021-03-25 12:24:13,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:13,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 431 transitions. [2021-03-25 12:24:13,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.785714285714285) internal successors, (431), 14 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:13,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 134.0) internal successors, (2010), 15 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:13,595 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 134.0) internal successors, (2010), 15 states have internal predecessors, (2010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:13,595 INFO L185 Difference]: Start difference. First operand has 449 places, 454 transitions, 13134 flow. Second operand 14 states and 431 transitions. [2021-03-25 12:24:13,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 467 transitions, 14668 flow [2021-03-25 12:24:14,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 467 transitions, 13931 flow, removed 174 selfloop flow, removed 32 redundant places. [2021-03-25 12:24:14,063 INFO L241 Difference]: Finished difference. Result has 435 places, 460 transitions, 13004 flow [2021-03-25 12:24:14,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=12459, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13004, PETRI_PLACES=435, PETRI_TRANSITIONS=460} [2021-03-25 12:24:14,063 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 388 predicate places. [2021-03-25 12:24:14,063 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:14,063 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 435 places, 460 transitions, 13004 flow [2021-03-25 12:24:14,063 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 435 places, 460 transitions, 13004 flow [2021-03-25 12:24:14,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 460 transitions, 13004 flow [2021-03-25 12:24:14,220 INFO L129 PetriNetUnfolder]: 332/906 cut-off events. [2021-03-25 12:24:14,220 INFO L130 PetriNetUnfolder]: For 89439/89474 co-relation queries the response was YES. [2021-03-25 12:24:14,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14748 conditions, 906 events. 332/906 cut-off events. For 89439/89474 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6806 event pairs, 41 based on Foata normal form. 3/904 useless extension candidates. Maximal degree in co-relation 14524. Up to 296 conditions per place. [2021-03-25 12:24:14,240 INFO L142 LiptonReduction]: Number of co-enabled transitions 780 [2021-03-25 12:24:14,264 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:14,264 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:14,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 12:24:14,265 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 460 transitions, 13004 flow [2021-03-25 12:24:14,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:14,265 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:14,265 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:14,265 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2021-03-25 12:24:14,265 INFO L428 AbstractCegarLoop]: === Iteration 498 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:14,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:14,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1016997088, now seen corresponding path program 2 times [2021-03-25 12:24:14,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:14,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077338147] [2021-03-25 12:24:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:14,271 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:14,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:14,275 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:14,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:14,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:14,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:14,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:14,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:14,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:14,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:14,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:14,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:14,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:14,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:14,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:14,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:14,328 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:14,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:14,345 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:14,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077338147] [2021-03-25 12:24:14,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:14,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:14,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657369980] [2021-03-25 12:24:14,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:14,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:14,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:14,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:14,349 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 134 [2021-03-25 12:24:14,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 460 transitions, 13004 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:14,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:14,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 134 [2021-03-25 12:24:14,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:14,844 INFO L129 PetriNetUnfolder]: 342/924 cut-off events. [2021-03-25 12:24:14,844 INFO L130 PetriNetUnfolder]: For 86891/86966 co-relation queries the response was YES. [2021-03-25 12:24:14,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15676 conditions, 924 events. 342/924 cut-off events. For 86891/86966 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6793 event pairs, 45 based on Foata normal form. 29/953 useless extension candidates. Maximal degree in co-relation 15460. Up to 722 conditions per place. [2021-03-25 12:24:14,858 INFO L132 encePairwiseOnDemand]: 121/134 looper letters, 413 selfloop transitions, 45 changer transitions 3/469 dead transitions. [2021-03-25 12:24:14,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 469 transitions, 14165 flow [2021-03-25 12:24:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:14,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:14,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 359 transitions. [2021-03-25 12:24:14,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2232587064676617 [2021-03-25 12:24:14,859 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 359 transitions. [2021-03-25 12:24:14,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 359 transitions. [2021-03-25 12:24:14,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:14,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 359 transitions. [2021-03-25 12:24:14,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.916666666666668) internal successors, (359), 12 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:14,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:14,860 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 134.0) internal successors, (1742), 13 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:14,861 INFO L185 Difference]: Start difference. First operand has 434 places, 460 transitions, 13004 flow. Second operand 12 states and 359 transitions. [2021-03-25 12:24:14,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 469 transitions, 14165 flow [2021-03-25 12:24:15,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 469 transitions, 13634 flow, removed 175 selfloop flow, removed 9 redundant places. [2021-03-25 12:24:15,283 INFO L241 Difference]: Finished difference. Result has 441 places, 462 transitions, 12708 flow [2021-03-25 12:24:15,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=12481, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12708, PETRI_PLACES=441, PETRI_TRANSITIONS=462} [2021-03-25 12:24:15,283 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 394 predicate places. [2021-03-25 12:24:15,283 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:15,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 462 transitions, 12708 flow [2021-03-25 12:24:15,283 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 462 transitions, 12708 flow [2021-03-25 12:24:15,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 462 transitions, 12708 flow [2021-03-25 12:24:15,442 INFO L129 PetriNetUnfolder]: 329/923 cut-off events. [2021-03-25 12:24:15,442 INFO L130 PetriNetUnfolder]: For 88167/88202 co-relation queries the response was YES. [2021-03-25 12:24:15,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14585 conditions, 923 events. 329/923 cut-off events. For 88167/88202 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7043 event pairs, 44 based on Foata normal form. 3/920 useless extension candidates. Maximal degree in co-relation 14383. Up to 288 conditions per place. [2021-03-25 12:24:15,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 12:24:15,540 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:24:15,541 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:24:15,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 258 [2021-03-25 12:24:15,541 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 461 transitions, 12700 flow [2021-03-25 12:24:15,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:15,541 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:15,541 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:15,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2021-03-25 12:24:15,541 INFO L428 AbstractCegarLoop]: === Iteration 499 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:15,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:15,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1279764904, now seen corresponding path program 3 times [2021-03-25 12:24:15,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:15,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989189669] [2021-03-25 12:24:15,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:15,546 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:15,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:15,551 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:15,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:15,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:15,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:15,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:15,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:15,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:15,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:15,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:15,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:15,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:15,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:15,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:15,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:15,618 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:15,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:15,634 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:15,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:15,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989189669] [2021-03-25 12:24:15,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:15,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:15,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386069017] [2021-03-25 12:24:15,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:15,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:15,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:15,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:15,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 135 [2021-03-25 12:24:15,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 461 transitions, 12700 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:15,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:15,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 135 [2021-03-25 12:24:15,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:16,249 INFO L129 PetriNetUnfolder]: 342/925 cut-off events. [2021-03-25 12:24:16,249 INFO L130 PetriNetUnfolder]: For 88231/88299 co-relation queries the response was YES. [2021-03-25 12:24:16,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15525 conditions, 925 events. 342/925 cut-off events. For 88231/88299 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6801 event pairs, 42 based on Foata normal form. 54/979 useless extension candidates. Maximal degree in co-relation 15323. Up to 683 conditions per place. [2021-03-25 12:24:16,264 INFO L132 encePairwiseOnDemand]: 120/135 looper letters, 372 selfloop transitions, 79 changer transitions 10/469 dead transitions. [2021-03-25 12:24:16,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 469 transitions, 13871 flow [2021-03-25 12:24:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:24:16,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22962962962962963 [2021-03-25 12:24:16,265 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:24:16,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:24:16,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:16,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:24:16,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:16,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:16,267 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 135.0) internal successors, (1755), 13 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:16,267 INFO L185 Difference]: Start difference. First operand has 438 places, 461 transitions, 12700 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:24:16,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 469 transitions, 13871 flow [2021-03-25 12:24:16,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 469 transitions, 13592 flow, removed 105 selfloop flow, removed 8 redundant places. [2021-03-25 12:24:16,694 INFO L241 Difference]: Finished difference. Result has 444 places, 456 transitions, 12564 flow [2021-03-25 12:24:16,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=12425, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12564, PETRI_PLACES=444, PETRI_TRANSITIONS=456} [2021-03-25 12:24:16,694 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 397 predicate places. [2021-03-25 12:24:16,694 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:16,694 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 456 transitions, 12564 flow [2021-03-25 12:24:16,694 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 456 transitions, 12564 flow [2021-03-25 12:24:16,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 456 transitions, 12564 flow [2021-03-25 12:24:16,847 INFO L129 PetriNetUnfolder]: 328/902 cut-off events. [2021-03-25 12:24:16,847 INFO L130 PetriNetUnfolder]: For 90509/90561 co-relation queries the response was YES. [2021-03-25 12:24:16,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14450 conditions, 902 events. 328/902 cut-off events. For 90509/90561 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6792 event pairs, 42 based on Foata normal form. 9/906 useless extension candidates. Maximal degree in co-relation 14253. Up to 273 conditions per place. [2021-03-25 12:24:16,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 772 [2021-03-25 12:24:16,888 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:16,888 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:16,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 194 [2021-03-25 12:24:16,889 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 456 transitions, 12564 flow [2021-03-25 12:24:16,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:16,889 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:16,889 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:16,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2021-03-25 12:24:16,889 INFO L428 AbstractCegarLoop]: === Iteration 500 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:16,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2016847330, now seen corresponding path program 4 times [2021-03-25 12:24:16,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:16,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073848671] [2021-03-25 12:24:16,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:16,908 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:16,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:16,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:16,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:16,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:16,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:16,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:16,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:16,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:16,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:16,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:16,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:16,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:16,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:16,980 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:16,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:16,996 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:16,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:17,013 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:17,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:17,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073848671] [2021-03-25 12:24:17,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:17,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:17,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114121547] [2021-03-25 12:24:17,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:17,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:17,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:17,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:17,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 135 [2021-03-25 12:24:17,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 456 transitions, 12564 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:17,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:17,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 135 [2021-03-25 12:24:17,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:17,617 INFO L129 PetriNetUnfolder]: 339/921 cut-off events. [2021-03-25 12:24:17,617 INFO L130 PetriNetUnfolder]: For 87270/87322 co-relation queries the response was YES. [2021-03-25 12:24:17,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15382 conditions, 921 events. 339/921 cut-off events. For 87270/87322 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6756 event pairs, 36 based on Foata normal form. 45/966 useless extension candidates. Maximal degree in co-relation 15178. Up to 680 conditions per place. [2021-03-25 12:24:17,632 INFO L132 encePairwiseOnDemand]: 121/135 looper letters, 368 selfloop transitions, 80 changer transitions 5/461 dead transitions. [2021-03-25 12:24:17,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 461 transitions, 13549 flow [2021-03-25 12:24:17,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:24:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:24:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 449 transitions. [2021-03-25 12:24:17,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2217283950617284 [2021-03-25 12:24:17,633 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 449 transitions. [2021-03-25 12:24:17,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 449 transitions. [2021-03-25 12:24:17,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:17,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 449 transitions. [2021-03-25 12:24:17,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.933333333333334) internal successors, (449), 15 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:17,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 135.0) internal successors, (2160), 16 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:17,634 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 135.0) internal successors, (2160), 16 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:17,634 INFO L185 Difference]: Start difference. First operand has 438 places, 456 transitions, 12564 flow. Second operand 15 states and 449 transitions. [2021-03-25 12:24:17,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 461 transitions, 13549 flow [2021-03-25 12:24:18,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 461 transitions, 13280 flow, removed 24 selfloop flow, removed 12 redundant places. [2021-03-25 12:24:18,023 INFO L241 Difference]: Finished difference. Result has 441 places, 452 transitions, 12401 flow [2021-03-25 12:24:18,023 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=12299, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12401, PETRI_PLACES=441, PETRI_TRANSITIONS=452} [2021-03-25 12:24:18,023 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 394 predicate places. [2021-03-25 12:24:18,023 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:18,023 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 452 transitions, 12401 flow [2021-03-25 12:24:18,024 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 452 transitions, 12401 flow [2021-03-25 12:24:18,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 452 transitions, 12401 flow [2021-03-25 12:24:18,175 INFO L129 PetriNetUnfolder]: 322/885 cut-off events. [2021-03-25 12:24:18,176 INFO L130 PetriNetUnfolder]: For 90841/90927 co-relation queries the response was YES. [2021-03-25 12:24:18,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14174 conditions, 885 events. 322/885 cut-off events. For 90841/90927 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6582 event pairs, 41 based on Foata normal form. 14/894 useless extension candidates. Maximal degree in co-relation 13978. Up to 266 conditions per place. [2021-03-25 12:24:18,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 772 [2021-03-25 12:24:18,280 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:18,280 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:24:18,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 257 [2021-03-25 12:24:18,280 INFO L480 AbstractCegarLoop]: Abstraction has has 438 places, 452 transitions, 12412 flow [2021-03-25 12:24:18,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:18,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:18,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:18,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2021-03-25 12:24:18,280 INFO L428 AbstractCegarLoop]: === Iteration 501 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:18,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1785368480, now seen corresponding path program 5 times [2021-03-25 12:24:18,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:18,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55504774] [2021-03-25 12:24:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:18,286 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:18,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:18,291 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:18,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:18,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:18,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:18,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:18,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:18,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:18,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:18,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:18,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:18,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:18,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:18,372 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:18,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:18,389 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:18,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:18,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55504774] [2021-03-25 12:24:18,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:18,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:18,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580250310] [2021-03-25 12:24:18,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:18,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:18,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:18,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:18,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 136 [2021-03-25 12:24:18,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 452 transitions, 12412 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:18,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:18,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 136 [2021-03-25 12:24:18,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:18,976 INFO L129 PetriNetUnfolder]: 336/913 cut-off events. [2021-03-25 12:24:18,976 INFO L130 PetriNetUnfolder]: For 85844/85912 co-relation queries the response was YES. [2021-03-25 12:24:18,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15226 conditions, 913 events. 336/913 cut-off events. For 85844/85912 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6643 event pairs, 43 based on Foata normal form. 53/966 useless extension candidates. Maximal degree in co-relation 15022. Up to 680 conditions per place. [2021-03-25 12:24:18,990 INFO L132 encePairwiseOnDemand]: 121/136 looper letters, 369 selfloop transitions, 75 changer transitions 6/458 dead transitions. [2021-03-25 12:24:18,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 458 transitions, 13425 flow [2021-03-25 12:24:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:24:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:24:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 471 transitions. [2021-03-25 12:24:18,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21645220588235295 [2021-03-25 12:24:18,992 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 471 transitions. [2021-03-25 12:24:18,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 471 transitions. [2021-03-25 12:24:18,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:18,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 471 transitions. [2021-03-25 12:24:18,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 29.4375) internal successors, (471), 16 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:18,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:18,993 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:18,993 INFO L185 Difference]: Start difference. First operand has 438 places, 452 transitions, 12412 flow. Second operand 16 states and 471 transitions. [2021-03-25 12:24:18,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 458 transitions, 13425 flow [2021-03-25 12:24:19,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 458 transitions, 13118 flow, removed 42 selfloop flow, removed 16 redundant places. [2021-03-25 12:24:19,354 INFO L241 Difference]: Finished difference. Result has 440 places, 448 transitions, 12195 flow [2021-03-25 12:24:19,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=12111, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=12195, PETRI_PLACES=440, PETRI_TRANSITIONS=448} [2021-03-25 12:24:19,354 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 393 predicate places. [2021-03-25 12:24:19,354 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:19,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 448 transitions, 12195 flow [2021-03-25 12:24:19,355 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 448 transitions, 12195 flow [2021-03-25 12:24:19,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 434 places, 448 transitions, 12195 flow [2021-03-25 12:24:19,500 INFO L129 PetriNetUnfolder]: 320/899 cut-off events. [2021-03-25 12:24:19,500 INFO L130 PetriNetUnfolder]: For 85965/86021 co-relation queries the response was YES. [2021-03-25 12:24:19,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14063 conditions, 899 events. 320/899 cut-off events. For 85965/86021 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 6780 event pairs, 41 based on Foata normal form. 12/906 useless extension candidates. Maximal degree in co-relation 13863. Up to 265 conditions per place. [2021-03-25 12:24:19,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 766 [2021-03-25 12:24:19,541 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:19,541 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:19,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 187 [2021-03-25 12:24:19,541 INFO L480 AbstractCegarLoop]: Abstraction has has 434 places, 448 transitions, 12195 flow [2021-03-25 12:24:19,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:19,541 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:19,541 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:19,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2021-03-25 12:24:19,542 INFO L428 AbstractCegarLoop]: === Iteration 502 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:19,542 INFO L82 PathProgramCache]: Analyzing trace with hash 81821012, now seen corresponding path program 1 times [2021-03-25 12:24:19,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:19,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569016748] [2021-03-25 12:24:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:19,547 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:19,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:19,552 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:19,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:19,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:19,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:19,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:19,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:19,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:19,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:19,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:19,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:19,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:19,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:19,617 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:19,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:19,632 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:19,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:19,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569016748] [2021-03-25 12:24:19,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:19,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:19,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172787055] [2021-03-25 12:24:19,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:19,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:19,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:19,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:19,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 136 [2021-03-25 12:24:19,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 448 transitions, 12195 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:19,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:19,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 136 [2021-03-25 12:24:19,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:20,179 INFO L129 PetriNetUnfolder]: 335/907 cut-off events. [2021-03-25 12:24:20,179 INFO L130 PetriNetUnfolder]: For 85953/86021 co-relation queries the response was YES. [2021-03-25 12:24:20,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15037 conditions, 907 events. 335/907 cut-off events. For 85953/86021 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6605 event pairs, 43 based on Foata normal form. 54/961 useless extension candidates. Maximal degree in co-relation 14840. Up to 652 conditions per place. [2021-03-25 12:24:20,195 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 341 selfloop transitions, 97 changer transitions 7/453 dead transitions. [2021-03-25 12:24:20,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 453 transitions, 13278 flow [2021-03-25 12:24:20,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:24:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:24:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2021-03-25 12:24:20,197 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2375 [2021-03-25 12:24:20,197 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 323 transitions. [2021-03-25 12:24:20,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 323 transitions. [2021-03-25 12:24:20,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:20,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 323 transitions. [2021-03-25 12:24:20,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:20,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:20,198 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:20,198 INFO L185 Difference]: Start difference. First operand has 434 places, 448 transitions, 12195 flow. Second operand 10 states and 323 transitions. [2021-03-25 12:24:20,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 453 transitions, 13278 flow [2021-03-25 12:24:20,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 453 transitions, 12826 flow, removed 47 selfloop flow, removed 18 redundant places. [2021-03-25 12:24:20,555 INFO L241 Difference]: Finished difference. Result has 427 places, 442 transitions, 11993 flow [2021-03-25 12:24:20,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=11751, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11993, PETRI_PLACES=427, PETRI_TRANSITIONS=442} [2021-03-25 12:24:20,555 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 380 predicate places. [2021-03-25 12:24:20,555 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:20,555 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 427 places, 442 transitions, 11993 flow [2021-03-25 12:24:20,555 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 427 places, 442 transitions, 11993 flow [2021-03-25 12:24:20,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 421 places, 442 transitions, 11993 flow [2021-03-25 12:24:20,698 INFO L129 PetriNetUnfolder]: 321/894 cut-off events. [2021-03-25 12:24:20,698 INFO L130 PetriNetUnfolder]: For 78439/78477 co-relation queries the response was YES. [2021-03-25 12:24:20,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 894 events. 321/894 cut-off events. For 78439/78477 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 6744 event pairs, 40 based on Foata normal form. 4/893 useless extension candidates. Maximal degree in co-relation 13699. Up to 268 conditions per place. [2021-03-25 12:24:20,715 INFO L142 LiptonReduction]: Number of co-enabled transitions 764 [2021-03-25 12:24:20,738 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:20,738 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:20,738 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-03-25 12:24:20,739 INFO L480 AbstractCegarLoop]: Abstraction has has 421 places, 442 transitions, 11993 flow [2021-03-25 12:24:20,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:20,739 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:20,739 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:20,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2021-03-25 12:24:20,739 INFO L428 AbstractCegarLoop]: === Iteration 503 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:20,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:20,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1581313474, now seen corresponding path program 35 times [2021-03-25 12:24:20,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:20,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722860298] [2021-03-25 12:24:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:20,750 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:20,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:20,755 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:20,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:20,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:20,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:20,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:20,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:20,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:20,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:20,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:20,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:20,821 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:20,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:20,837 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:20,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:20,854 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:20,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:20,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722860298] [2021-03-25 12:24:20,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:20,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:20,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269867510] [2021-03-25 12:24:20,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:20,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:20,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:20,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:20,857 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 136 [2021-03-25 12:24:20,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 442 transitions, 11993 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:20,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:20,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 136 [2021-03-25 12:24:20,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:21,554 INFO L129 PetriNetUnfolder]: 374/1002 cut-off events. [2021-03-25 12:24:21,554 INFO L130 PetriNetUnfolder]: For 99297/99365 co-relation queries the response was YES. [2021-03-25 12:24:21,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16976 conditions, 1002 events. 374/1002 cut-off events. For 99297/99365 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7504 event pairs, 35 based on Foata normal form. 26/1028 useless extension candidates. Maximal degree in co-relation 16775. Up to 693 conditions per place. [2021-03-25 12:24:21,570 INFO L132 encePairwiseOnDemand]: 122/136 looper letters, 381 selfloop transitions, 119 changer transitions 4/512 dead transitions. [2021-03-25 12:24:21,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 512 transitions, 16368 flow [2021-03-25 12:24:21,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:24:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:24:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 473 transitions. [2021-03-25 12:24:21,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23186274509803922 [2021-03-25 12:24:21,571 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 473 transitions. [2021-03-25 12:24:21,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 473 transitions. [2021-03-25 12:24:21,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:21,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 473 transitions. [2021-03-25 12:24:21,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 31.533333333333335) internal successors, (473), 15 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:21,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:21,572 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:21,572 INFO L185 Difference]: Start difference. First operand has 421 places, 442 transitions, 11993 flow. Second operand 15 states and 473 transitions. [2021-03-25 12:24:21,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 512 transitions, 16368 flow [2021-03-25 12:24:21,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 512 transitions, 16058 flow, removed 39 selfloop flow, removed 14 redundant places. [2021-03-25 12:24:21,975 INFO L241 Difference]: Finished difference. Result has 431 places, 496 transitions, 14675 flow [2021-03-25 12:24:21,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=11726, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14675, PETRI_PLACES=431, PETRI_TRANSITIONS=496} [2021-03-25 12:24:21,975 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 384 predicate places. [2021-03-25 12:24:21,975 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:21,976 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 431 places, 496 transitions, 14675 flow [2021-03-25 12:24:21,976 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 431 places, 496 transitions, 14675 flow [2021-03-25 12:24:21,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 431 places, 496 transitions, 14675 flow [2021-03-25 12:24:22,148 INFO L129 PetriNetUnfolder]: 355/958 cut-off events. [2021-03-25 12:24:22,148 INFO L130 PetriNetUnfolder]: For 101244/101249 co-relation queries the response was YES. [2021-03-25 12:24:22,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16116 conditions, 958 events. 355/958 cut-off events. For 101244/101249 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7262 event pairs, 27 based on Foata normal form. 2/959 useless extension candidates. Maximal degree in co-relation 15893. Up to 307 conditions per place. [2021-03-25 12:24:22,168 INFO L142 LiptonReduction]: Number of co-enabled transitions 856 [2021-03-25 12:24:22,260 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:22,260 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:24:22,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 285 [2021-03-25 12:24:22,260 INFO L480 AbstractCegarLoop]: Abstraction has has 431 places, 496 transitions, 14684 flow [2021-03-25 12:24:22,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:22,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:22,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:22,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2021-03-25 12:24:22,260 INFO L428 AbstractCegarLoop]: === Iteration 504 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:22,260 INFO L82 PathProgramCache]: Analyzing trace with hash -49760541, now seen corresponding path program 196 times [2021-03-25 12:24:22,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:22,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636873209] [2021-03-25 12:24:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:22,266 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:22,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:22,271 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:22,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:22,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:22,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:22,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:22,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:22,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:22,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:22,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:22,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:22,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:22,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:22,336 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:22,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:22,351 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:22,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:22,368 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:22,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:22,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636873209] [2021-03-25 12:24:22,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:22,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:24:22,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205584350] [2021-03-25 12:24:22,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:24:22,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:24:22,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:24:22,371 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 137 [2021-03-25 12:24:22,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 496 transitions, 14684 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:22,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:22,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 137 [2021-03-25 12:24:22,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:23,086 INFO L129 PetriNetUnfolder]: 384/1036 cut-off events. [2021-03-25 12:24:23,086 INFO L130 PetriNetUnfolder]: For 110376/110417 co-relation queries the response was YES. [2021-03-25 12:24:23,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18050 conditions, 1036 events. 384/1036 cut-off events. For 110376/110417 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7886 event pairs, 34 based on Foata normal form. 36/1072 useless extension candidates. Maximal degree in co-relation 17835. Up to 698 conditions per place. [2021-03-25 12:24:23,101 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 369 selfloop transitions, 137 changer transitions 10/524 dead transitions. [2021-03-25 12:24:23,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 524 transitions, 17022 flow [2021-03-25 12:24:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 380 transitions. [2021-03-25 12:24:23,102 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23114355231143552 [2021-03-25 12:24:23,102 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 380 transitions. [2021-03-25 12:24:23,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 380 transitions. [2021-03-25 12:24:23,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:23,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 380 transitions. [2021-03-25 12:24:23,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.666666666666668) internal successors, (380), 12 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:23,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:23,103 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 137.0) internal successors, (1781), 13 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:23,103 INFO L185 Difference]: Start difference. First operand has 431 places, 496 transitions, 14684 flow. Second operand 12 states and 380 transitions. [2021-03-25 12:24:23,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 524 transitions, 17022 flow [2021-03-25 12:24:23,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 524 transitions, 15915 flow, removed 538 selfloop flow, removed 5 redundant places. [2021-03-25 12:24:23,518 INFO L241 Difference]: Finished difference. Result has 444 places, 509 transitions, 14798 flow [2021-03-25 12:24:23,518 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=13597, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14798, PETRI_PLACES=444, PETRI_TRANSITIONS=509} [2021-03-25 12:24:23,518 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 397 predicate places. [2021-03-25 12:24:23,518 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:23,518 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 509 transitions, 14798 flow [2021-03-25 12:24:23,519 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 509 transitions, 14798 flow [2021-03-25 12:24:23,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 443 places, 509 transitions, 14798 flow [2021-03-25 12:24:23,700 INFO L129 PetriNetUnfolder]: 365/1015 cut-off events. [2021-03-25 12:24:23,701 INFO L130 PetriNetUnfolder]: For 96784/96793 co-relation queries the response was YES. [2021-03-25 12:24:23,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16567 conditions, 1015 events. 365/1015 cut-off events. For 96784/96793 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7881 event pairs, 35 based on Foata normal form. 7/1022 useless extension candidates. Maximal degree in co-relation 16366. Up to 309 conditions per place. [2021-03-25 12:24:23,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 884 [2021-03-25 12:24:23,750 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:23,750 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:23,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 232 [2021-03-25 12:24:23,751 INFO L480 AbstractCegarLoop]: Abstraction has has 443 places, 509 transitions, 14798 flow [2021-03-25 12:24:23,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:23,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:23,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:23,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2021-03-25 12:24:23,751 INFO L428 AbstractCegarLoop]: === Iteration 505 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:23,751 INFO L82 PathProgramCache]: Analyzing trace with hash -463393873, now seen corresponding path program 1 times [2021-03-25 12:24:23,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:23,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354317508] [2021-03-25 12:24:23,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:23,758 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:23,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:23,764 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:23,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:23,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:23,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:23,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:23,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:23,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:23,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:23,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:23,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:23,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:23,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:23,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:23,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:23,835 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:23,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:23,849 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:23,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:23,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354317508] [2021-03-25 12:24:23,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:23,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:23,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478186585] [2021-03-25 12:24:23,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:23,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:23,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:23,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:23,853 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 137 [2021-03-25 12:24:23,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 509 transitions, 14798 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:23,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:23,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 137 [2021-03-25 12:24:23,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:24,487 INFO L129 PetriNetUnfolder]: 383/1037 cut-off events. [2021-03-25 12:24:24,487 INFO L130 PetriNetUnfolder]: For 103246/103302 co-relation queries the response was YES. [2021-03-25 12:24:24,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17847 conditions, 1037 events. 383/1037 cut-off events. For 103246/103302 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7872 event pairs, 35 based on Foata normal form. 44/1081 useless extension candidates. Maximal degree in co-relation 17638. Up to 748 conditions per place. [2021-03-25 12:24:24,503 INFO L132 encePairwiseOnDemand]: 123/137 looper letters, 426 selfloop transitions, 84 changer transitions 12/530 dead transitions. [2021-03-25 12:24:24,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 530 transitions, 16864 flow [2021-03-25 12:24:24,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:24:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:24:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 432 transitions. [2021-03-25 12:24:24,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22523461939520334 [2021-03-25 12:24:24,505 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 432 transitions. [2021-03-25 12:24:24,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 432 transitions. [2021-03-25 12:24:24,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:24,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 432 transitions. [2021-03-25 12:24:24,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.857142857142858) internal successors, (432), 14 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:24,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:24,506 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 137.0) internal successors, (2055), 15 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:24,506 INFO L185 Difference]: Start difference. First operand has 443 places, 509 transitions, 14798 flow. Second operand 14 states and 432 transitions. [2021-03-25 12:24:24,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 530 transitions, 16864 flow [2021-03-25 12:24:24,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 530 transitions, 16552 flow, removed 105 selfloop flow, removed 10 redundant places. [2021-03-25 12:24:24,982 INFO L241 Difference]: Finished difference. Result has 452 places, 514 transitions, 15086 flow [2021-03-25 12:24:24,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=14498, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15086, PETRI_PLACES=452, PETRI_TRANSITIONS=514} [2021-03-25 12:24:24,982 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 405 predicate places. [2021-03-25 12:24:24,982 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:24,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 514 transitions, 15086 flow [2021-03-25 12:24:24,982 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 514 transitions, 15086 flow [2021-03-25 12:24:24,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 449 places, 514 transitions, 15086 flow [2021-03-25 12:24:25,166 INFO L129 PetriNetUnfolder]: 357/990 cut-off events. [2021-03-25 12:24:25,166 INFO L130 PetriNetUnfolder]: For 103611/103637 co-relation queries the response was YES. [2021-03-25 12:24:25,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16539 conditions, 990 events. 357/990 cut-off events. For 103611/103637 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7601 event pairs, 31 based on Foata normal form. 13/1003 useless extension candidates. Maximal degree in co-relation 16331. Up to 313 conditions per place. [2021-03-25 12:24:25,187 INFO L142 LiptonReduction]: Number of co-enabled transitions 886 [2021-03-25 12:24:25,307 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:25,307 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:24:25,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 326 [2021-03-25 12:24:25,308 INFO L480 AbstractCegarLoop]: Abstraction has has 449 places, 514 transitions, 15228 flow [2021-03-25 12:24:25,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:25,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:25,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:25,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2021-03-25 12:24:25,308 INFO L428 AbstractCegarLoop]: === Iteration 506 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:25,308 INFO L82 PathProgramCache]: Analyzing trace with hash 68608591, now seen corresponding path program 2 times [2021-03-25 12:24:25,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:25,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051704730] [2021-03-25 12:24:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:25,314 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:25,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:25,319 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:25,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:25,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:25,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:25,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:25,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:25,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:25,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:25,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:25,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:25,353 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:25,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:25,356 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:25,369 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:25,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:25,382 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:25,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:25,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051704730] [2021-03-25 12:24:25,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:25,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:25,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997970948] [2021-03-25 12:24:25,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:25,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:25,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:25,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:25,385 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 139 [2021-03-25 12:24:25,386 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 514 transitions, 15228 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:25,386 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:25,386 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 139 [2021-03-25 12:24:25,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:25,986 INFO L129 PetriNetUnfolder]: 379/1028 cut-off events. [2021-03-25 12:24:25,986 INFO L130 PetriNetUnfolder]: For 107724/107780 co-relation queries the response was YES. [2021-03-25 12:24:25,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17985 conditions, 1028 events. 379/1028 cut-off events. For 107724/107780 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7788 event pairs, 40 based on Foata normal form. 44/1072 useless extension candidates. Maximal degree in co-relation 17773. Up to 754 conditions per place. [2021-03-25 12:24:26,003 INFO L132 encePairwiseOnDemand]: 123/139 looper letters, 426 selfloop transitions, 91 changer transitions 2/527 dead transitions. [2021-03-25 12:24:26,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 527 transitions, 17025 flow [2021-03-25 12:24:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:24:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:24:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 300 transitions. [2021-03-25 12:24:26,004 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23980815347721823 [2021-03-25 12:24:26,004 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 300 transitions. [2021-03-25 12:24:26,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 300 transitions. [2021-03-25 12:24:26,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:26,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 300 transitions. [2021-03-25 12:24:26,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.333333333333336) internal successors, (300), 9 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:26,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:26,005 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:26,005 INFO L185 Difference]: Start difference. First operand has 449 places, 514 transitions, 15228 flow. Second operand 9 states and 300 transitions. [2021-03-25 12:24:26,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 527 transitions, 17025 flow [2021-03-25 12:24:26,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 527 transitions, 16533 flow, removed 245 selfloop flow, removed 3 redundant places. [2021-03-25 12:24:26,558 INFO L241 Difference]: Finished difference. Result has 456 places, 523 transitions, 15556 flow [2021-03-25 12:24:26,558 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=14736, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15556, PETRI_PLACES=456, PETRI_TRANSITIONS=523} [2021-03-25 12:24:26,558 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 409 predicate places. [2021-03-25 12:24:26,558 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:26,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 456 places, 523 transitions, 15556 flow [2021-03-25 12:24:26,558 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 456 places, 523 transitions, 15556 flow [2021-03-25 12:24:26,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 456 places, 523 transitions, 15556 flow [2021-03-25 12:24:26,745 INFO L129 PetriNetUnfolder]: 360/1008 cut-off events. [2021-03-25 12:24:26,746 INFO L130 PetriNetUnfolder]: For 103413/103441 co-relation queries the response was YES. [2021-03-25 12:24:26,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16770 conditions, 1008 events. 360/1008 cut-off events. For 103413/103441 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7806 event pairs, 30 based on Foata normal form. 13/1020 useless extension candidates. Maximal degree in co-relation 16541. Up to 319 conditions per place. [2021-03-25 12:24:26,767 INFO L142 LiptonReduction]: Number of co-enabled transitions 888 [2021-03-25 12:24:26,861 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:26,861 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:24:26,861 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 303 [2021-03-25 12:24:26,861 INFO L480 AbstractCegarLoop]: Abstraction has has 456 places, 523 transitions, 15631 flow [2021-03-25 12:24:26,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:26,862 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:26,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:26,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2021-03-25 12:24:26,862 INFO L428 AbstractCegarLoop]: === Iteration 507 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:26,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:26,862 INFO L82 PathProgramCache]: Analyzing trace with hash 652347832, now seen corresponding path program 1 times [2021-03-25 12:24:26,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:26,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187948089] [2021-03-25 12:24:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:26,867 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:26,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:26,872 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:26,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:26,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:26,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:26,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:26,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:26,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:26,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:26,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:26,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:26,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:26,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:24:26,914 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:24:26,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:26,925 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:24:26,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:26,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187948089] [2021-03-25 12:24:26,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:26,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:26,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065551482] [2021-03-25 12:24:26,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:26,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:26,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:26,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:26,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:26,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 523 transitions, 15631 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:26,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:26,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:26,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:27,507 INFO L129 PetriNetUnfolder]: 378/1036 cut-off events. [2021-03-25 12:24:27,507 INFO L130 PetriNetUnfolder]: For 110088/110150 co-relation queries the response was YES. [2021-03-25 12:24:27,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18122 conditions, 1036 events. 378/1036 cut-off events. For 110088/110150 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7933 event pairs, 41 based on Foata normal form. 51/1087 useless extension candidates. Maximal degree in co-relation 17899. Up to 740 conditions per place. [2021-03-25 12:24:27,523 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 416 selfloop transitions, 92 changer transitions 13/529 dead transitions. [2021-03-25 12:24:27,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 529 transitions, 16985 flow [2021-03-25 12:24:27,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:24:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:24:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 274 transitions. [2021-03-25 12:24:27,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24464285714285713 [2021-03-25 12:24:27,525 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 274 transitions. [2021-03-25 12:24:27,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 274 transitions. [2021-03-25 12:24:27,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:27,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 274 transitions. [2021-03-25 12:24:27,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:27,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:27,526 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:27,526 INFO L185 Difference]: Start difference. First operand has 456 places, 523 transitions, 15631 flow. Second operand 8 states and 274 transitions. [2021-03-25 12:24:27,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 529 transitions, 16985 flow [2021-03-25 12:24:28,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 529 transitions, 16417 flow, removed 236 selfloop flow, removed 4 redundant places. [2021-03-25 12:24:28,057 INFO L241 Difference]: Finished difference. Result has 463 places, 514 transitions, 15121 flow [2021-03-25 12:24:28,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15063, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15121, PETRI_PLACES=463, PETRI_TRANSITIONS=514} [2021-03-25 12:24:28,057 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 416 predicate places. [2021-03-25 12:24:28,057 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:28,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 514 transitions, 15121 flow [2021-03-25 12:24:28,057 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 514 transitions, 15121 flow [2021-03-25 12:24:28,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 460 places, 514 transitions, 15121 flow [2021-03-25 12:24:28,245 INFO L129 PetriNetUnfolder]: 358/1009 cut-off events. [2021-03-25 12:24:28,246 INFO L130 PetriNetUnfolder]: For 102611/102622 co-relation queries the response was YES. [2021-03-25 12:24:28,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16785 conditions, 1009 events. 358/1009 cut-off events. For 102611/102622 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7841 event pairs, 26 based on Foata normal form. 7/1016 useless extension candidates. Maximal degree in co-relation 16568. Up to 310 conditions per place. [2021-03-25 12:24:28,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 876 [2021-03-25 12:24:28,298 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:28,298 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:28,298 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 241 [2021-03-25 12:24:28,298 INFO L480 AbstractCegarLoop]: Abstraction has has 460 places, 514 transitions, 15121 flow [2021-03-25 12:24:28,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:28,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:28,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:28,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2021-03-25 12:24:28,299 INFO L428 AbstractCegarLoop]: === Iteration 508 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:28,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:28,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1443342309, now seen corresponding path program 1 times [2021-03-25 12:24:28,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:28,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104555958] [2021-03-25 12:24:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:28,304 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:28,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:28,309 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:28,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:28,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:28,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:28,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:28,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:28,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:28,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:28,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:28,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:28,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:28,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:24:28,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:24:28,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:28,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:24:28,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:28,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104555958] [2021-03-25 12:24:28,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:28,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:28,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500251785] [2021-03-25 12:24:28,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:28,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:28,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:28,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:28,370 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:28,370 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 514 transitions, 15121 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:28,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:28,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:28,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:28,898 INFO L129 PetriNetUnfolder]: 374/1013 cut-off events. [2021-03-25 12:24:28,898 INFO L130 PetriNetUnfolder]: For 109254/109310 co-relation queries the response was YES. [2021-03-25 12:24:28,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17808 conditions, 1013 events. 374/1013 cut-off events. For 109254/109310 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7649 event pairs, 40 based on Foata normal form. 44/1057 useless extension candidates. Maximal degree in co-relation 17589. Up to 740 conditions per place. [2021-03-25 12:24:28,916 INFO L132 encePairwiseOnDemand]: 126/140 looper letters, 416 selfloop transitions, 93 changer transitions 2/519 dead transitions. [2021-03-25 12:24:28,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 519 transitions, 16373 flow [2021-03-25 12:24:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:24:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:24:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 274 transitions. [2021-03-25 12:24:28,917 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24464285714285713 [2021-03-25 12:24:28,917 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 274 transitions. [2021-03-25 12:24:28,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 274 transitions. [2021-03-25 12:24:28,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:28,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 274 transitions. [2021-03-25 12:24:28,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:28,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:28,918 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:28,918 INFO L185 Difference]: Start difference. First operand has 460 places, 514 transitions, 15121 flow. Second operand 8 states and 274 transitions. [2021-03-25 12:24:28,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 519 transitions, 16373 flow [2021-03-25 12:24:29,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 519 transitions, 16122 flow, removed 12 selfloop flow, removed 11 redundant places. [2021-03-25 12:24:29,420 INFO L241 Difference]: Finished difference. Result has 459 places, 515 transitions, 15185 flow [2021-03-25 12:24:29,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=14878, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15185, PETRI_PLACES=459, PETRI_TRANSITIONS=515} [2021-03-25 12:24:29,421 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 412 predicate places. [2021-03-25 12:24:29,421 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:29,421 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 515 transitions, 15185 flow [2021-03-25 12:24:29,421 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 515 transitions, 15185 flow [2021-03-25 12:24:29,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 459 places, 515 transitions, 15185 flow [2021-03-25 12:24:29,622 INFO L129 PetriNetUnfolder]: 357/997 cut-off events. [2021-03-25 12:24:29,622 INFO L130 PetriNetUnfolder]: For 104085/104098 co-relation queries the response was YES. [2021-03-25 12:24:29,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16631 conditions, 997 events. 357/997 cut-off events. For 104085/104098 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7690 event pairs, 28 based on Foata normal form. 4/998 useless extension candidates. Maximal degree in co-relation 16398. Up to 309 conditions per place. [2021-03-25 12:24:29,643 INFO L142 LiptonReduction]: Number of co-enabled transitions 876 [2021-03-25 12:24:29,670 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:29,670 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:29,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-25 12:24:29,670 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 515 transitions, 15185 flow [2021-03-25 12:24:29,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:29,671 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:29,671 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:29,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2021-03-25 12:24:29,671 INFO L428 AbstractCegarLoop]: === Iteration 509 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash -2010589837, now seen corresponding path program 2 times [2021-03-25 12:24:29,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:29,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288296117] [2021-03-25 12:24:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:29,676 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:29,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:29,681 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:29,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:29,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:29,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:29,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:29,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:29,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:29,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:29,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:29,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:29,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:29,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:24:29,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:29,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:29,734 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:24:29,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:29,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288296117] [2021-03-25 12:24:29,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:29,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:29,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112823951] [2021-03-25 12:24:29,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:29,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:29,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:29,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:29,737 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:29,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 515 transitions, 15185 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:29,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:29,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:29,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:30,273 INFO L129 PetriNetUnfolder]: 375/1030 cut-off events. [2021-03-25 12:24:30,273 INFO L130 PetriNetUnfolder]: For 110250/110291 co-relation queries the response was YES. [2021-03-25 12:24:30,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17920 conditions, 1030 events. 375/1030 cut-off events. For 110250/110291 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7867 event pairs, 28 based on Foata normal form. 36/1066 useless extension candidates. Maximal degree in co-relation 17693. Up to 727 conditions per place. [2021-03-25 12:24:30,290 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 409 selfloop transitions, 105 changer transitions 3/525 dead transitions. [2021-03-25 12:24:30,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 525 transitions, 16717 flow [2021-03-25 12:24:30,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:24:30,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:24:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 276 transitions. [2021-03-25 12:24:30,291 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24642857142857144 [2021-03-25 12:24:30,291 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 276 transitions. [2021-03-25 12:24:30,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 276 transitions. [2021-03-25 12:24:30,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:30,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 276 transitions. [2021-03-25 12:24:30,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.5) internal successors, (276), 8 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:30,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:30,292 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:30,292 INFO L185 Difference]: Start difference. First operand has 459 places, 515 transitions, 15185 flow. Second operand 8 states and 276 transitions. [2021-03-25 12:24:30,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 525 transitions, 16717 flow [2021-03-25 12:24:30,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 525 transitions, 16493 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-03-25 12:24:30,824 INFO L241 Difference]: Finished difference. Result has 463 places, 516 transitions, 15346 flow [2021-03-25 12:24:30,824 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=14961, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15346, PETRI_PLACES=463, PETRI_TRANSITIONS=516} [2021-03-25 12:24:30,824 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 416 predicate places. [2021-03-25 12:24:30,824 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:30,824 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 516 transitions, 15346 flow [2021-03-25 12:24:30,824 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 516 transitions, 15346 flow [2021-03-25 12:24:30,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 463 places, 516 transitions, 15346 flow [2021-03-25 12:24:31,011 INFO L129 PetriNetUnfolder]: 358/1006 cut-off events. [2021-03-25 12:24:31,011 INFO L130 PetriNetUnfolder]: For 106714/106796 co-relation queries the response was YES. [2021-03-25 12:24:31,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16886 conditions, 1006 events. 358/1006 cut-off events. For 106714/106796 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7816 event pairs, 39 based on Foata normal form. 13/1019 useless extension candidates. Maximal degree in co-relation 16651. Up to 312 conditions per place. [2021-03-25 12:24:31,033 INFO L142 LiptonReduction]: Number of co-enabled transitions 878 [2021-03-25 12:24:31,062 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:31,062 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:31,062 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 238 [2021-03-25 12:24:31,062 INFO L480 AbstractCegarLoop]: Abstraction has has 463 places, 516 transitions, 15346 flow [2021-03-25 12:24:31,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:31,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:31,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:31,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2021-03-25 12:24:31,063 INFO L428 AbstractCegarLoop]: === Iteration 510 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:31,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:31,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1992155811, now seen corresponding path program 3 times [2021-03-25 12:24:31,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:31,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873250773] [2021-03-25 12:24:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:31,068 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:31,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:31,073 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:31,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:31,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:31,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:31,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:31,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:31,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:31,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:31,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:31,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:31,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:31,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:24:31,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:31,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:31,136 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:24:31,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:24:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:31,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873250773] [2021-03-25 12:24:31,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:31,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:31,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522026166] [2021-03-25 12:24:31,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:31,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:31,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:31,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:31,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:31,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 516 transitions, 15346 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:31,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:31,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:31,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:31,722 INFO L129 PetriNetUnfolder]: 374/1019 cut-off events. [2021-03-25 12:24:31,722 INFO L130 PetriNetUnfolder]: For 111275/111331 co-relation queries the response was YES. [2021-03-25 12:24:31,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17960 conditions, 1019 events. 374/1019 cut-off events. For 111275/111331 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7752 event pairs, 28 based on Foata normal form. 44/1063 useless extension candidates. Maximal degree in co-relation 17731. Up to 712 conditions per place. [2021-03-25 12:24:31,738 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 392 selfloop transitions, 119 changer transitions 4/523 dead transitions. [2021-03-25 12:24:31,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 523 transitions, 16734 flow [2021-03-25 12:24:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:24:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:24:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 306 transitions. [2021-03-25 12:24:31,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24285714285714285 [2021-03-25 12:24:31,740 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 306 transitions. [2021-03-25 12:24:31,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 306 transitions. [2021-03-25 12:24:31,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:31,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 306 transitions. [2021-03-25 12:24:31,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 34.0) internal successors, (306), 9 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:31,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:31,741 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:31,741 INFO L185 Difference]: Start difference. First operand has 463 places, 516 transitions, 15346 flow. Second operand 9 states and 306 transitions. [2021-03-25 12:24:31,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 523 transitions, 16734 flow [2021-03-25 12:24:32,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 523 transitions, 16552 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-03-25 12:24:32,321 INFO L241 Difference]: Finished difference. Result has 466 places, 513 transitions, 15355 flow [2021-03-25 12:24:32,321 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15164, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15355, PETRI_PLACES=466, PETRI_TRANSITIONS=513} [2021-03-25 12:24:32,322 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 419 predicate places. [2021-03-25 12:24:32,322 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:32,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 466 places, 513 transitions, 15355 flow [2021-03-25 12:24:32,322 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 466 places, 513 transitions, 15355 flow [2021-03-25 12:24:32,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 465 places, 513 transitions, 15355 flow [2021-03-25 12:24:32,525 INFO L129 PetriNetUnfolder]: 359/1006 cut-off events. [2021-03-25 12:24:32,525 INFO L130 PetriNetUnfolder]: For 104307/104339 co-relation queries the response was YES. [2021-03-25 12:24:32,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16955 conditions, 1006 events. 359/1006 cut-off events. For 104307/104339 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7841 event pairs, 27 based on Foata normal form. 9/1014 useless extension candidates. Maximal degree in co-relation 16724. Up to 310 conditions per place. [2021-03-25 12:24:32,547 INFO L142 LiptonReduction]: Number of co-enabled transitions 878 [2021-03-25 12:24:32,576 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:32,576 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:32,576 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-25 12:24:32,576 INFO L480 AbstractCegarLoop]: Abstraction has has 465 places, 513 transitions, 15355 flow [2021-03-25 12:24:32,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:32,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:32,576 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:32,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2021-03-25 12:24:32,576 INFO L428 AbstractCegarLoop]: === Iteration 511 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash 415103975, now seen corresponding path program 3 times [2021-03-25 12:24:32,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:32,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673544356] [2021-03-25 12:24:32,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:32,591 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:32,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:32,596 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:32,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:32,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:32,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:32,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:32,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:32,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:32,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:32,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:32,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:32,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:32,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:32,639 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:32,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:32,652 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:32,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:32,666 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:32,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:32,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673544356] [2021-03-25 12:24:32,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:32,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:32,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740773017] [2021-03-25 12:24:32,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:32,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:32,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:32,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:32,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:32,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 513 transitions, 15355 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:32,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:32,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:32,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:33,251 INFO L129 PetriNetUnfolder]: 374/1012 cut-off events. [2021-03-25 12:24:33,251 INFO L130 PetriNetUnfolder]: For 110841/110897 co-relation queries the response was YES. [2021-03-25 12:24:33,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18024 conditions, 1012 events. 374/1012 cut-off events. For 110841/110897 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7613 event pairs, 42 based on Foata normal form. 44/1056 useless extension candidates. Maximal degree in co-relation 17795. Up to 748 conditions per place. [2021-03-25 12:24:33,268 INFO L132 encePairwiseOnDemand]: 126/140 looper letters, 422 selfloop transitions, 89 changer transitions 3/522 dead transitions. [2021-03-25 12:24:33,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 522 transitions, 16852 flow [2021-03-25 12:24:33,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 378 transitions. [2021-03-25 12:24:33,269 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.225 [2021-03-25 12:24:33,269 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 378 transitions. [2021-03-25 12:24:33,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 378 transitions. [2021-03-25 12:24:33,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:33,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 378 transitions. [2021-03-25 12:24:33,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.5) internal successors, (378), 12 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:33,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:33,270 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:33,270 INFO L185 Difference]: Start difference. First operand has 465 places, 513 transitions, 15355 flow. Second operand 12 states and 378 transitions. [2021-03-25 12:24:33,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 522 transitions, 16852 flow [2021-03-25 12:24:33,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 522 transitions, 16506 flow, removed 16 selfloop flow, removed 14 redundant places. [2021-03-25 12:24:33,783 INFO L241 Difference]: Finished difference. Result has 464 places, 517 transitions, 15492 flow [2021-03-25 12:24:33,783 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15035, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15492, PETRI_PLACES=464, PETRI_TRANSITIONS=517} [2021-03-25 12:24:33,783 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 417 predicate places. [2021-03-25 12:24:33,783 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:33,783 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 517 transitions, 15492 flow [2021-03-25 12:24:33,783 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 517 transitions, 15492 flow [2021-03-25 12:24:33,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 463 places, 517 transitions, 15492 flow [2021-03-25 12:24:33,969 INFO L129 PetriNetUnfolder]: 357/997 cut-off events. [2021-03-25 12:24:33,970 INFO L130 PetriNetUnfolder]: For 107740/107832 co-relation queries the response was YES. [2021-03-25 12:24:33,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16806 conditions, 997 events. 357/997 cut-off events. For 107740/107832 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7789 event pairs, 33 based on Foata normal form. 7/1000 useless extension candidates. Maximal degree in co-relation 16578. Up to 316 conditions per place. [2021-03-25 12:24:33,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 878 [2021-03-25 12:24:34,020 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:34,020 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:34,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 238 [2021-03-25 12:24:34,021 INFO L480 AbstractCegarLoop]: Abstraction has has 463 places, 517 transitions, 15492 flow [2021-03-25 12:24:34,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:34,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:34,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:34,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2021-03-25 12:24:34,021 INFO L428 AbstractCegarLoop]: === Iteration 512 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:34,021 INFO L82 PathProgramCache]: Analyzing trace with hash -791455231, now seen corresponding path program 4 times [2021-03-25 12:24:34,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:34,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968760787] [2021-03-25 12:24:34,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:34,029 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:34,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:34,034 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:34,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:34,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:34,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:34,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:34,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:34,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:34,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:34,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:34,066 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:34,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:34,068 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:34,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:34,081 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:34,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:34,094 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:34,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968760787] [2021-03-25 12:24:34,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:34,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:34,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602221411] [2021-03-25 12:24:34,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:34,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:34,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:34,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:34,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:34,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 517 transitions, 15492 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:34,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:34,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:34,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:34,678 INFO L129 PetriNetUnfolder]: 372/1016 cut-off events. [2021-03-25 12:24:34,678 INFO L130 PetriNetUnfolder]: For 110192/110372 co-relation queries the response was YES. [2021-03-25 12:24:34,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17948 conditions, 1016 events. 372/1016 cut-off events. For 110192/110372 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7742 event pairs, 42 based on Foata normal form. 64/1080 useless extension candidates. Maximal degree in co-relation 17722. Up to 753 conditions per place. [2021-03-25 12:24:34,695 INFO L132 encePairwiseOnDemand]: 126/140 looper letters, 431 selfloop transitions, 81 changer transitions 5/525 dead transitions. [2021-03-25 12:24:34,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 525 transitions, 16937 flow [2021-03-25 12:24:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:24:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:24:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 296 transitions. [2021-03-25 12:24:34,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23492063492063492 [2021-03-25 12:24:34,696 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 296 transitions. [2021-03-25 12:24:34,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 296 transitions. [2021-03-25 12:24:34,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:34,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 296 transitions. [2021-03-25 12:24:34,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.888888888888886) internal successors, (296), 9 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:34,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:34,697 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:34,697 INFO L185 Difference]: Start difference. First operand has 463 places, 517 transitions, 15492 flow. Second operand 9 states and 296 transitions. [2021-03-25 12:24:34,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 525 transitions, 16937 flow [2021-03-25 12:24:35,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 525 transitions, 16538 flow, removed 150 selfloop flow, removed 4 redundant places. [2021-03-25 12:24:35,253 INFO L241 Difference]: Finished difference. Result has 470 places, 518 transitions, 15407 flow [2021-03-25 12:24:35,253 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15097, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15407, PETRI_PLACES=470, PETRI_TRANSITIONS=518} [2021-03-25 12:24:35,254 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 423 predicate places. [2021-03-25 12:24:35,254 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:35,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 518 transitions, 15407 flow [2021-03-25 12:24:35,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 518 transitions, 15407 flow [2021-03-25 12:24:35,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 470 places, 518 transitions, 15407 flow [2021-03-25 12:24:35,440 INFO L129 PetriNetUnfolder]: 355/989 cut-off events. [2021-03-25 12:24:35,441 INFO L130 PetriNetUnfolder]: For 109001/109058 co-relation queries the response was YES. [2021-03-25 12:24:35,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16680 conditions, 989 events. 355/989 cut-off events. For 109001/109058 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7704 event pairs, 32 based on Foata normal form. 13/999 useless extension candidates. Maximal degree in co-relation 16447. Up to 314 conditions per place. [2021-03-25 12:24:35,462 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 12:24:35,492 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:35,492 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:35,492 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 238 [2021-03-25 12:24:35,492 INFO L480 AbstractCegarLoop]: Abstraction has has 470 places, 518 transitions, 15407 flow [2021-03-25 12:24:35,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:35,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:35,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:35,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2021-03-25 12:24:35,493 INFO L428 AbstractCegarLoop]: === Iteration 513 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:35,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:35,493 INFO L82 PathProgramCache]: Analyzing trace with hash -444959847, now seen corresponding path program 5 times [2021-03-25 12:24:35,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:35,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350959073] [2021-03-25 12:24:35,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:35,500 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:35,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:35,505 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:35,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:35,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:35,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:35,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:35,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:35,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:35,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:35,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:35,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:35,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:35,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:35,549 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:35,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:35,563 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:35,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:35,578 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:35,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:35,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350959073] [2021-03-25 12:24:35,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:35,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:35,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126869653] [2021-03-25 12:24:35,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:35,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:35,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:35,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:35,581 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:35,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 518 transitions, 15407 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:35,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:35,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:35,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:36,210 INFO L129 PetriNetUnfolder]: 368/1014 cut-off events. [2021-03-25 12:24:36,211 INFO L130 PetriNetUnfolder]: For 107726/107782 co-relation queries the response was YES. [2021-03-25 12:24:36,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17697 conditions, 1014 events. 368/1014 cut-off events. For 107726/107782 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7739 event pairs, 38 based on Foata normal form. 44/1058 useless extension candidates. Maximal degree in co-relation 17468. Up to 750 conditions per place. [2021-03-25 12:24:36,227 INFO L132 encePairwiseOnDemand]: 126/140 looper letters, 428 selfloop transitions, 79 changer transitions 7/522 dead transitions. [2021-03-25 12:24:36,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 522 transitions, 16534 flow [2021-03-25 12:24:36,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:24:36,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:24:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 403 transitions. [2021-03-25 12:24:36,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22142857142857142 [2021-03-25 12:24:36,229 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 403 transitions. [2021-03-25 12:24:36,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 403 transitions. [2021-03-25 12:24:36,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:36,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 403 transitions. [2021-03-25 12:24:36,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.0) internal successors, (403), 13 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:36,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:36,230 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:36,230 INFO L185 Difference]: Start difference. First operand has 470 places, 518 transitions, 15407 flow. Second operand 13 states and 403 transitions. [2021-03-25 12:24:36,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 522 transitions, 16534 flow [2021-03-25 12:24:36,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 522 transitions, 16182 flow, removed 77 selfloop flow, removed 8 redundant places. [2021-03-25 12:24:36,737 INFO L241 Difference]: Finished difference. Result has 475 places, 512 transitions, 15045 flow [2021-03-25 12:24:36,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15060, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15045, PETRI_PLACES=475, PETRI_TRANSITIONS=512} [2021-03-25 12:24:36,738 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 428 predicate places. [2021-03-25 12:24:36,738 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:36,738 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 475 places, 512 transitions, 15045 flow [2021-03-25 12:24:36,738 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 475 places, 512 transitions, 15045 flow [2021-03-25 12:24:36,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 474 places, 512 transitions, 15045 flow [2021-03-25 12:24:36,919 INFO L129 PetriNetUnfolder]: 352/995 cut-off events. [2021-03-25 12:24:36,919 INFO L130 PetriNetUnfolder]: For 105683/105720 co-relation queries the response was YES. [2021-03-25 12:24:36,930 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16581 conditions, 995 events. 352/995 cut-off events. For 105683/105720 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 7739 event pairs, 32 based on Foata normal form. 7/999 useless extension candidates. Maximal degree in co-relation 16347. Up to 314 conditions per place. [2021-03-25 12:24:36,940 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 12:24:36,969 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:36,970 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:36,970 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 232 [2021-03-25 12:24:36,970 INFO L480 AbstractCegarLoop]: Abstraction has has 474 places, 512 transitions, 15045 flow [2021-03-25 12:24:36,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:36,970 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:36,970 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:36,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2021-03-25 12:24:36,970 INFO L428 AbstractCegarLoop]: === Iteration 514 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:36,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:36,970 INFO L82 PathProgramCache]: Analyzing trace with hash 26588961, now seen corresponding path program 6 times [2021-03-25 12:24:36,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:36,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396709751] [2021-03-25 12:24:36,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:36,976 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:36,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:36,981 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:36,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:36,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:36,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:36,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:36,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:37,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:37,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:37,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:37,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:37,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:37,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:37,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:37,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:37,049 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:37,064 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:37,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396709751] [2021-03-25 12:24:37,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:37,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:37,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388539484] [2021-03-25 12:24:37,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:37,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:37,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:37,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:37,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:37,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 512 transitions, 15045 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:37,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:37,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:37,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:37,724 INFO L129 PetriNetUnfolder]: 368/1009 cut-off events. [2021-03-25 12:24:37,725 INFO L130 PetriNetUnfolder]: For 108511/108690 co-relation queries the response was YES. [2021-03-25 12:24:37,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17618 conditions, 1009 events. 368/1009 cut-off events. For 108511/108690 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7655 event pairs, 30 based on Foata normal form. 63/1072 useless extension candidates. Maximal degree in co-relation 17390. Up to 717 conditions per place. [2021-03-25 12:24:37,741 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 393 selfloop transitions, 119 changer transitions 5/525 dead transitions. [2021-03-25 12:24:37,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 525 transitions, 16722 flow [2021-03-25 12:24:37,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:24:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:24:37,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 360 transitions. [2021-03-25 12:24:37,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23376623376623376 [2021-03-25 12:24:37,742 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 360 transitions. [2021-03-25 12:24:37,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 360 transitions. [2021-03-25 12:24:37,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:37,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 360 transitions. [2021-03-25 12:24:37,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.72727272727273) internal successors, (360), 11 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:37,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:37,743 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:37,743 INFO L185 Difference]: Start difference. First operand has 474 places, 512 transitions, 15045 flow. Second operand 11 states and 360 transitions. [2021-03-25 12:24:37,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 525 transitions, 16722 flow [2021-03-25 12:24:38,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 525 transitions, 16466 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-25 12:24:38,268 INFO L241 Difference]: Finished difference. Result has 472 places, 515 transitions, 15244 flow [2021-03-25 12:24:38,268 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=14793, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15244, PETRI_PLACES=472, PETRI_TRANSITIONS=515} [2021-03-25 12:24:38,268 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 425 predicate places. [2021-03-25 12:24:38,268 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:38,268 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 472 places, 515 transitions, 15244 flow [2021-03-25 12:24:38,268 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 472 places, 515 transitions, 15244 flow [2021-03-25 12:24:38,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 471 places, 515 transitions, 15244 flow [2021-03-25 12:24:38,452 INFO L129 PetriNetUnfolder]: 348/980 cut-off events. [2021-03-25 12:24:38,452 INFO L130 PetriNetUnfolder]: For 105602/105613 co-relation queries the response was YES. [2021-03-25 12:24:38,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16605 conditions, 980 events. 348/980 cut-off events. For 105602/105613 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7603 event pairs, 29 based on Foata normal form. 5/984 useless extension candidates. Maximal degree in co-relation 16369. Up to 310 conditions per place. [2021-03-25 12:24:38,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 12:24:38,503 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:38,503 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:38,503 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 235 [2021-03-25 12:24:38,503 INFO L480 AbstractCegarLoop]: Abstraction has has 471 places, 515 transitions, 15244 flow [2021-03-25 12:24:38,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:38,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:38,504 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:38,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2021-03-25 12:24:38,504 INFO L428 AbstractCegarLoop]: === Iteration 515 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:38,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:38,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1449782225, now seen corresponding path program 7 times [2021-03-25 12:24:38,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:38,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68039864] [2021-03-25 12:24:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:38,520 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:38,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:38,526 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:38,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:38,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:38,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:38,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:38,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:38,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:38,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:38,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:38,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:38,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:38,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:38,577 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:38,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:38,581 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:38,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:38,594 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:38,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:38,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68039864] [2021-03-25 12:24:38,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:38,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:38,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885886204] [2021-03-25 12:24:38,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:38,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:38,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:38,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:38,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:38,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 515 transitions, 15244 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:38,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:38,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:38,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:39,180 INFO L129 PetriNetUnfolder]: 368/993 cut-off events. [2021-03-25 12:24:39,181 INFO L130 PetriNetUnfolder]: For 112812/112868 co-relation queries the response was YES. [2021-03-25 12:24:39,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17897 conditions, 993 events. 368/993 cut-off events. For 112812/112868 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7439 event pairs, 38 based on Foata normal form. 44/1037 useless extension candidates. Maximal degree in co-relation 17667. Up to 747 conditions per place. [2021-03-25 12:24:39,195 INFO L132 encePairwiseOnDemand]: 126/140 looper letters, 431 selfloop transitions, 84 changer transitions 2/525 dead transitions. [2021-03-25 12:24:39,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 525 transitions, 16818 flow [2021-03-25 12:24:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:24:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:24:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 293 transitions. [2021-03-25 12:24:39,197 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23253968253968255 [2021-03-25 12:24:39,197 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 293 transitions. [2021-03-25 12:24:39,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 293 transitions. [2021-03-25 12:24:39,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:39,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 293 transitions. [2021-03-25 12:24:39,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 9 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:39,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:39,197 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 140.0) internal successors, (1400), 10 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:39,197 INFO L185 Difference]: Start difference. First operand has 471 places, 515 transitions, 15244 flow. Second operand 9 states and 293 transitions. [2021-03-25 12:24:39,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 525 transitions, 16818 flow [2021-03-25 12:24:39,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 525 transitions, 16421 flow, removed 65 selfloop flow, removed 12 redundant places. [2021-03-25 12:24:39,738 INFO L241 Difference]: Finished difference. Result has 470 places, 518 transitions, 15303 flow [2021-03-25 12:24:39,739 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=14849, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15303, PETRI_PLACES=470, PETRI_TRANSITIONS=518} [2021-03-25 12:24:39,739 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 423 predicate places. [2021-03-25 12:24:39,739 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:39,739 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 518 transitions, 15303 flow [2021-03-25 12:24:39,739 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 518 transitions, 15303 flow [2021-03-25 12:24:39,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 469 places, 518 transitions, 15303 flow [2021-03-25 12:24:39,925 INFO L129 PetriNetUnfolder]: 350/999 cut-off events. [2021-03-25 12:24:39,926 INFO L130 PetriNetUnfolder]: For 109667/109673 co-relation queries the response was YES. [2021-03-25 12:24:39,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16815 conditions, 999 events. 350/999 cut-off events. For 109667/109673 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7802 event pairs, 27 based on Foata normal form. 4/1003 useless extension candidates. Maximal degree in co-relation 16599. Up to 313 conditions per place. [2021-03-25 12:24:39,948 INFO L142 LiptonReduction]: Number of co-enabled transitions 890 [2021-03-25 12:24:39,977 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:39,978 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:39,978 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 239 [2021-03-25 12:24:39,978 INFO L480 AbstractCegarLoop]: Abstraction has has 469 places, 518 transitions, 15303 flow [2021-03-25 12:24:39,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:39,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:39,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:39,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2021-03-25 12:24:39,978 INFO L428 AbstractCegarLoop]: === Iteration 516 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:39,978 INFO L82 PathProgramCache]: Analyzing trace with hash -914552423, now seen corresponding path program 8 times [2021-03-25 12:24:39,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:39,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974753734] [2021-03-25 12:24:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:39,983 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:39,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:39,988 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:39,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:39,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:39,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:40,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:40,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:40,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:40,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:40,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:40,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:40,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:40,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:40,042 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:40,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:40,046 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:40,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:40,060 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:40,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:40,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:40,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974753734] [2021-03-25 12:24:40,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:40,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:40,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815862773] [2021-03-25 12:24:40,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:40,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:40,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:40,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:40,063 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:40,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 518 transitions, 15303 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:40,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:40,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:40,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:40,681 INFO L129 PetriNetUnfolder]: 369/1017 cut-off events. [2021-03-25 12:24:40,681 INFO L130 PetriNetUnfolder]: For 116274/116330 co-relation queries the response was YES. [2021-03-25 12:24:40,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18099 conditions, 1017 events. 369/1017 cut-off events. For 116274/116330 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7779 event pairs, 30 based on Foata normal form. 44/1061 useless extension candidates. Maximal degree in co-relation 17879. Up to 714 conditions per place. [2021-03-25 12:24:40,699 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 405 selfloop transitions, 115 changer transitions 3/531 dead transitions. [2021-03-25 12:24:40,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 531 transitions, 17046 flow [2021-03-25 12:24:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:24:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:24:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2021-03-25 12:24:40,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23357142857142857 [2021-03-25 12:24:40,700 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 327 transitions. [2021-03-25 12:24:40,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 327 transitions. [2021-03-25 12:24:40,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:40,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 327 transitions. [2021-03-25 12:24:40,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:40,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:40,701 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:40,701 INFO L185 Difference]: Start difference. First operand has 469 places, 518 transitions, 15303 flow. Second operand 10 states and 327 transitions. [2021-03-25 12:24:40,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 531 transitions, 17046 flow [2021-03-25 12:24:41,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 531 transitions, 16840 flow, removed 64 selfloop flow, removed 5 redundant places. [2021-03-25 12:24:41,262 INFO L241 Difference]: Finished difference. Result has 476 places, 521 transitions, 15639 flow [2021-03-25 12:24:41,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15097, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15639, PETRI_PLACES=476, PETRI_TRANSITIONS=521} [2021-03-25 12:24:41,263 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 429 predicate places. [2021-03-25 12:24:41,263 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:41,263 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 521 transitions, 15639 flow [2021-03-25 12:24:41,263 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 521 transitions, 15639 flow [2021-03-25 12:24:41,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 475 places, 521 transitions, 15639 flow [2021-03-25 12:24:41,462 INFO L129 PetriNetUnfolder]: 350/993 cut-off events. [2021-03-25 12:24:41,462 INFO L130 PetriNetUnfolder]: For 116852/116880 co-relation queries the response was YES. [2021-03-25 12:24:41,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17108 conditions, 993 events. 350/993 cut-off events. For 116852/116880 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7758 event pairs, 39 based on Foata normal form. 13/1006 useless extension candidates. Maximal degree in co-relation 16889. Up to 315 conditions per place. [2021-03-25 12:24:41,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 898 [2021-03-25 12:24:41,514 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:41,514 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:41,514 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-03-25 12:24:41,514 INFO L480 AbstractCegarLoop]: Abstraction has has 475 places, 521 transitions, 15639 flow [2021-03-25 12:24:41,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:41,514 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:41,514 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:41,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2021-03-25 12:24:41,514 INFO L428 AbstractCegarLoop]: === Iteration 517 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:41,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:41,515 INFO L82 PathProgramCache]: Analyzing trace with hash 728886615, now seen corresponding path program 9 times [2021-03-25 12:24:41,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:41,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217602910] [2021-03-25 12:24:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:41,528 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:41,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:41,534 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:41,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:41,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:41,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:41,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:41,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:41,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:41,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:41,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:41,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:41,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:41,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:41,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:41,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:41,608 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:41,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:41,622 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:41,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:41,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:41,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217602910] [2021-03-25 12:24:41,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:41,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:41,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497966087] [2021-03-25 12:24:41,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:41,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:41,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:41,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:41,625 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:41,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 521 transitions, 15639 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:41,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:41,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:41,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:42,239 INFO L129 PetriNetUnfolder]: 369/1021 cut-off events. [2021-03-25 12:24:42,239 INFO L130 PetriNetUnfolder]: For 118659/118715 co-relation queries the response was YES. [2021-03-25 12:24:42,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18299 conditions, 1021 events. 369/1021 cut-off events. For 118659/118715 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7833 event pairs, 29 based on Foata normal form. 44/1065 useless extension candidates. Maximal degree in co-relation 18076. Up to 714 conditions per place. [2021-03-25 12:24:42,256 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 405 selfloop transitions, 117 changer transitions 3/533 dead transitions. [2021-03-25 12:24:42,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 533 transitions, 17236 flow [2021-03-25 12:24:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:24:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:24:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2021-03-25 12:24:42,257 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2342857142857143 [2021-03-25 12:24:42,257 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 328 transitions. [2021-03-25 12:24:42,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 328 transitions. [2021-03-25 12:24:42,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:42,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 328 transitions. [2021-03-25 12:24:42,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.8) internal successors, (328), 10 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:42,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:42,258 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:42,258 INFO L185 Difference]: Start difference. First operand has 475 places, 521 transitions, 15639 flow. Second operand 10 states and 328 transitions. [2021-03-25 12:24:42,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 533 transitions, 17236 flow [2021-03-25 12:24:42,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 533 transitions, 16850 flow, removed 119 selfloop flow, removed 7 redundant places. [2021-03-25 12:24:42,849 INFO L241 Difference]: Finished difference. Result has 480 places, 524 transitions, 15795 flow [2021-03-25 12:24:42,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15356, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15795, PETRI_PLACES=480, PETRI_TRANSITIONS=524} [2021-03-25 12:24:42,849 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 433 predicate places. [2021-03-25 12:24:42,849 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:42,849 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 524 transitions, 15795 flow [2021-03-25 12:24:42,849 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 524 transitions, 15795 flow [2021-03-25 12:24:42,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 479 places, 524 transitions, 15795 flow [2021-03-25 12:24:43,038 INFO L129 PetriNetUnfolder]: 350/994 cut-off events. [2021-03-25 12:24:43,039 INFO L130 PetriNetUnfolder]: For 113500/113525 co-relation queries the response was YES. [2021-03-25 12:24:43,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17113 conditions, 994 events. 350/994 cut-off events. For 113500/113525 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7779 event pairs, 31 based on Foata normal form. 7/997 useless extension candidates. Maximal degree in co-relation 16872. Up to 312 conditions per place. [2021-03-25 12:24:43,061 INFO L142 LiptonReduction]: Number of co-enabled transitions 904 [2021-03-25 12:24:43,090 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:43,090 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:43,090 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 241 [2021-03-25 12:24:43,091 INFO L480 AbstractCegarLoop]: Abstraction has has 479 places, 524 transitions, 15795 flow [2021-03-25 12:24:43,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:43,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:43,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:43,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2021-03-25 12:24:43,091 INFO L428 AbstractCegarLoop]: === Iteration 518 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1075381999, now seen corresponding path program 10 times [2021-03-25 12:24:43,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:43,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015746256] [2021-03-25 12:24:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:43,096 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:43,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:43,101 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:43,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:43,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:43,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:43,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:43,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:43,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:43,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:43,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:43,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:43,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:43,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:43,157 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:43,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:43,171 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:43,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:43,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015746256] [2021-03-25 12:24:43,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:43,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:43,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098564836] [2021-03-25 12:24:43,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:43,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:43,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:43,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:43,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 140 [2021-03-25 12:24:43,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 524 transitions, 15795 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:43,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:43,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 140 [2021-03-25 12:24:43,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:43,790 INFO L129 PetriNetUnfolder]: 368/1026 cut-off events. [2021-03-25 12:24:43,790 INFO L130 PetriNetUnfolder]: For 116128/116190 co-relation queries the response was YES. [2021-03-25 12:24:43,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18312 conditions, 1026 events. 368/1026 cut-off events. For 116128/116190 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7907 event pairs, 30 based on Foata normal form. 50/1076 useless extension candidates. Maximal degree in co-relation 18077. Up to 745 conditions per place. [2021-03-25 12:24:43,807 INFO L132 encePairwiseOnDemand]: 124/140 looper letters, 425 selfloop transitions, 93 changer transitions 6/532 dead transitions. [2021-03-25 12:24:43,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 532 transitions, 17177 flow [2021-03-25 12:24:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:24:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:24:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2021-03-25 12:24:43,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22380952380952382 [2021-03-25 12:24:43,808 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 376 transitions. [2021-03-25 12:24:43,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 376 transitions. [2021-03-25 12:24:43,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:43,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 376 transitions. [2021-03-25 12:24:43,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.333333333333332) internal successors, (376), 12 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:43,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:43,809 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 140.0) internal successors, (1820), 13 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:43,809 INFO L185 Difference]: Start difference. First operand has 479 places, 524 transitions, 15795 flow. Second operand 12 states and 376 transitions. [2021-03-25 12:24:43,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 532 transitions, 17177 flow [2021-03-25 12:24:44,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 532 transitions, 16725 flow, removed 99 selfloop flow, removed 8 redundant places. [2021-03-25 12:24:44,397 INFO L241 Difference]: Finished difference. Result has 486 places, 522 transitions, 15503 flow [2021-03-25 12:24:44,397 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=15373, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15503, PETRI_PLACES=486, PETRI_TRANSITIONS=522} [2021-03-25 12:24:44,397 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 439 predicate places. [2021-03-25 12:24:44,397 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:44,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 486 places, 522 transitions, 15503 flow [2021-03-25 12:24:44,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 486 places, 522 transitions, 15503 flow [2021-03-25 12:24:44,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 480 places, 522 transitions, 15503 flow [2021-03-25 12:24:44,594 INFO L129 PetriNetUnfolder]: 350/1007 cut-off events. [2021-03-25 12:24:44,594 INFO L130 PetriNetUnfolder]: For 110181/110192 co-relation queries the response was YES. [2021-03-25 12:24:44,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17010 conditions, 1007 events. 350/1007 cut-off events. For 110181/110192 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 7967 event pairs, 32 based on Foata normal form. 7/1014 useless extension candidates. Maximal degree in co-relation 16787. Up to 310 conditions per place. [2021-03-25 12:24:44,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 900 [2021-03-25 12:24:44,710 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:24:44,710 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:24:44,710 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 313 [2021-03-25 12:24:44,710 INFO L480 AbstractCegarLoop]: Abstraction has has 480 places, 522 transitions, 15525 flow [2021-03-25 12:24:44,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:44,711 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:44,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:44,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2021-03-25 12:24:44,711 INFO L428 AbstractCegarLoop]: === Iteration 519 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:44,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:44,711 INFO L82 PathProgramCache]: Analyzing trace with hash -2116956023, now seen corresponding path program 11 times [2021-03-25 12:24:44,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:44,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348187627] [2021-03-25 12:24:44,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:44,716 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:44,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:44,721 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:44,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:44,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:44,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:44,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:44,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:44,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:44,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:44,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:44,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:44,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:44,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:44,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:44,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:44,803 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:44,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:44,818 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:44,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:44,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348187627] [2021-03-25 12:24:44,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:44,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:44,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953449230] [2021-03-25 12:24:44,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:44,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:44,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:44,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:44,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:44,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 522 transitions, 15525 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:44,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:44,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:44,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:45,511 INFO L129 PetriNetUnfolder]: 368/1014 cut-off events. [2021-03-25 12:24:45,511 INFO L130 PetriNetUnfolder]: For 115412/115474 co-relation queries the response was YES. [2021-03-25 12:24:45,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18155 conditions, 1014 events. 368/1014 cut-off events. For 115412/115474 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7740 event pairs, 41 based on Foata normal form. 50/1064 useless extension candidates. Maximal degree in co-relation 17928. Up to 759 conditions per place. [2021-03-25 12:24:45,528 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 431 selfloop transitions, 89 changer transitions 3/531 dead transitions. [2021-03-25 12:24:45,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 531 transitions, 16965 flow [2021-03-25 12:24:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:24:45,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:24:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 406 transitions. [2021-03-25 12:24:45,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2214948172394981 [2021-03-25 12:24:45,530 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 406 transitions. [2021-03-25 12:24:45,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 406 transitions. [2021-03-25 12:24:45,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:45,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 406 transitions. [2021-03-25 12:24:45,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.23076923076923) internal successors, (406), 13 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:45,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:45,531 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:45,531 INFO L185 Difference]: Start difference. First operand has 480 places, 522 transitions, 15525 flow. Second operand 13 states and 406 transitions. [2021-03-25 12:24:45,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 531 transitions, 16965 flow [2021-03-25 12:24:46,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 531 transitions, 16696 flow, removed 15 selfloop flow, removed 13 redundant places. [2021-03-25 12:24:46,161 INFO L241 Difference]: Finished difference. Result has 484 places, 526 transitions, 15657 flow [2021-03-25 12:24:46,161 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15268, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15657, PETRI_PLACES=484, PETRI_TRANSITIONS=526} [2021-03-25 12:24:46,161 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 437 predicate places. [2021-03-25 12:24:46,161 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:46,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 484 places, 526 transitions, 15657 flow [2021-03-25 12:24:46,162 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 484 places, 526 transitions, 15657 flow [2021-03-25 12:24:46,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 483 places, 526 transitions, 15657 flow [2021-03-25 12:24:46,356 INFO L129 PetriNetUnfolder]: 350/998 cut-off events. [2021-03-25 12:24:46,357 INFO L130 PetriNetUnfolder]: For 114595/114627 co-relation queries the response was YES. [2021-03-25 12:24:46,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17042 conditions, 998 events. 350/998 cut-off events. For 114595/114627 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7835 event pairs, 33 based on Foata normal form. 15/1013 useless extension candidates. Maximal degree in co-relation 16799. Up to 311 conditions per place. [2021-03-25 12:24:46,379 INFO L142 LiptonReduction]: Number of co-enabled transitions 900 [2021-03-25 12:24:46,410 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:46,410 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:46,410 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-25 12:24:46,410 INFO L480 AbstractCegarLoop]: Abstraction has has 483 places, 526 transitions, 15657 flow [2021-03-25 12:24:46,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:46,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:46,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:46,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2021-03-25 12:24:46,410 INFO L428 AbstractCegarLoop]: === Iteration 520 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:46,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1669957648, now seen corresponding path program 1 times [2021-03-25 12:24:46,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:46,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111887605] [2021-03-25 12:24:46,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:46,416 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:46,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:46,421 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:46,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:46,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:46,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:46,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:46,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:46,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:46,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:46,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:46,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:46,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:46,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:46,477 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:24:46,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:46,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:46,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:46,494 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:46,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:46,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111887605] [2021-03-25 12:24:46,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:46,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:46,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267868941] [2021-03-25 12:24:46,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:46,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:46,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:46,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:46,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 526 transitions, 15657 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:46,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:46,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:46,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:47,180 INFO L129 PetriNetUnfolder]: 368/1033 cut-off events. [2021-03-25 12:24:47,180 INFO L130 PetriNetUnfolder]: For 117165/117206 co-relation queries the response was YES. [2021-03-25 12:24:47,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18353 conditions, 1033 events. 368/1033 cut-off events. For 117165/117206 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8025 event pairs, 25 based on Foata normal form. 36/1069 useless extension candidates. Maximal degree in co-relation 18116. Up to 697 conditions per place. [2021-03-25 12:24:47,199 INFO L132 encePairwiseOnDemand]: 124/141 looper letters, 377 selfloop transitions, 151 changer transitions 3/539 dead transitions. [2021-03-25 12:24:47,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 539 transitions, 17448 flow [2021-03-25 12:24:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:24:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:24:47,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 360 transitions. [2021-03-25 12:24:47,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23210831721470018 [2021-03-25 12:24:47,205 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 360 transitions. [2021-03-25 12:24:47,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 360 transitions. [2021-03-25 12:24:47,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:47,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 360 transitions. [2021-03-25 12:24:47,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 32.72727272727273) internal successors, (360), 11 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:47,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:47,206 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:47,206 INFO L185 Difference]: Start difference. First operand has 483 places, 526 transitions, 15657 flow. Second operand 11 states and 360 transitions. [2021-03-25 12:24:47,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 539 transitions, 17448 flow [2021-03-25 12:24:47,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 539 transitions, 17097 flow, removed 79 selfloop flow, removed 10 redundant places. [2021-03-25 12:24:47,859 INFO L241 Difference]: Finished difference. Result has 487 places, 528 transitions, 15926 flow [2021-03-25 12:24:47,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15306, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15926, PETRI_PLACES=487, PETRI_TRANSITIONS=528} [2021-03-25 12:24:47,860 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 440 predicate places. [2021-03-25 12:24:47,860 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:47,860 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 487 places, 528 transitions, 15926 flow [2021-03-25 12:24:47,860 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 487 places, 528 transitions, 15926 flow [2021-03-25 12:24:47,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 486 places, 528 transitions, 15926 flow [2021-03-25 12:24:48,055 INFO L129 PetriNetUnfolder]: 351/1003 cut-off events. [2021-03-25 12:24:48,055 INFO L130 PetriNetUnfolder]: For 115762/115768 co-relation queries the response was YES. [2021-03-25 12:24:48,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17475 conditions, 1003 events. 351/1003 cut-off events. For 115762/115768 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 7931 event pairs, 29 based on Foata normal form. 4/1007 useless extension candidates. Maximal degree in co-relation 17234. Up to 312 conditions per place. [2021-03-25 12:24:48,079 INFO L142 LiptonReduction]: Number of co-enabled transitions 910 [2021-03-25 12:24:48,110 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:48,110 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:48,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 250 [2021-03-25 12:24:48,110 INFO L480 AbstractCegarLoop]: Abstraction has has 486 places, 528 transitions, 15926 flow [2021-03-25 12:24:48,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:48,110 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:48,110 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:48,110 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2021-03-25 12:24:48,110 INFO L428 AbstractCegarLoop]: === Iteration 521 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:48,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:48,111 INFO L82 PathProgramCache]: Analyzing trace with hash -6116569, now seen corresponding path program 12 times [2021-03-25 12:24:48,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:48,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124618337] [2021-03-25 12:24:48,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:48,116 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:48,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:48,121 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:48,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:48,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:48,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:48,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:48,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:48,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:48,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:48,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:48,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:48,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:48,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:48,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:48,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:48,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:48,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:48,199 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:48,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:48,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124618337] [2021-03-25 12:24:48,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:48,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:48,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283807219] [2021-03-25 12:24:48,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:48,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:48,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:48,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:48,203 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:48,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 528 transitions, 15926 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:48,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:48,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:48,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:48,825 INFO L129 PetriNetUnfolder]: 368/1029 cut-off events. [2021-03-25 12:24:48,825 INFO L130 PetriNetUnfolder]: For 119073/119129 co-relation queries the response was YES. [2021-03-25 12:24:48,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18492 conditions, 1029 events. 368/1029 cut-off events. For 119073/119129 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7957 event pairs, 31 based on Foata normal form. 44/1073 useless extension candidates. Maximal degree in co-relation 18253. Up to 751 conditions per place. [2021-03-25 12:24:48,843 INFO L132 encePairwiseOnDemand]: 125/141 looper letters, 427 selfloop transitions, 98 changer transitions 2/535 dead transitions. [2021-03-25 12:24:48,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 535 transitions, 17229 flow [2021-03-25 12:24:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:24:48,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:24:48,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2021-03-25 12:24:48,844 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22907801418439716 [2021-03-25 12:24:48,844 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 323 transitions. [2021-03-25 12:24:48,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 323 transitions. [2021-03-25 12:24:48,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:48,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 323 transitions. [2021-03-25 12:24:48,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:48,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:48,845 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:48,845 INFO L185 Difference]: Start difference. First operand has 486 places, 528 transitions, 15926 flow. Second operand 10 states and 323 transitions. [2021-03-25 12:24:48,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 535 transitions, 17229 flow [2021-03-25 12:24:49,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 535 transitions, 17017 flow, removed 19 selfloop flow, removed 7 redundant places. [2021-03-25 12:24:49,536 INFO L241 Difference]: Finished difference. Result has 491 places, 529 transitions, 15973 flow [2021-03-25 12:24:49,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15716, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15973, PETRI_PLACES=491, PETRI_TRANSITIONS=529} [2021-03-25 12:24:49,536 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 444 predicate places. [2021-03-25 12:24:49,536 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:49,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 491 places, 529 transitions, 15973 flow [2021-03-25 12:24:49,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 491 places, 529 transitions, 15973 flow [2021-03-25 12:24:49,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 490 places, 529 transitions, 15973 flow [2021-03-25 12:24:49,731 INFO L129 PetriNetUnfolder]: 351/1007 cut-off events. [2021-03-25 12:24:49,731 INFO L130 PetriNetUnfolder]: For 115638/115648 co-relation queries the response was YES. [2021-03-25 12:24:49,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17382 conditions, 1007 events. 351/1007 cut-off events. For 115638/115648 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 7952 event pairs, 31 based on Foata normal form. 3/1010 useless extension candidates. Maximal degree in co-relation 17140. Up to 311 conditions per place. [2021-03-25 12:24:49,754 INFO L142 LiptonReduction]: Number of co-enabled transitions 912 [2021-03-25 12:24:49,784 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:49,784 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:49,784 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 248 [2021-03-25 12:24:49,784 INFO L480 AbstractCegarLoop]: Abstraction has has 490 places, 529 transitions, 15973 flow [2021-03-25 12:24:49,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:49,785 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:49,785 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:49,785 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2021-03-25 12:24:49,785 INFO L428 AbstractCegarLoop]: === Iteration 522 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:49,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1573850937, now seen corresponding path program 13 times [2021-03-25 12:24:49,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:49,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837658712] [2021-03-25 12:24:49,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:49,790 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:49,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:49,795 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:49,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:49,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:49,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:49,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:49,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:49,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:49,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:49,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:49,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:49,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:49,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:49,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:49,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:49,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:49,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:49,879 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:49,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:49,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837658712] [2021-03-25 12:24:49,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:49,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:49,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562988579] [2021-03-25 12:24:49,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:49,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:49,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:49,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:49,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:49,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 529 transitions, 15973 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:49,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:49,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:49,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:50,588 INFO L129 PetriNetUnfolder]: 367/1040 cut-off events. [2021-03-25 12:24:50,589 INFO L130 PetriNetUnfolder]: For 121201/121248 co-relation queries the response was YES. [2021-03-25 12:24:50,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18639 conditions, 1040 events. 367/1040 cut-off events. For 121201/121248 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 8116 event pairs, 33 based on Foata normal form. 42/1082 useless extension candidates. Maximal degree in co-relation 18398. Up to 747 conditions per place. [2021-03-25 12:24:50,606 INFO L132 encePairwiseOnDemand]: 125/141 looper letters, 425 selfloop transitions, 98 changer transitions 10/541 dead transitions. [2021-03-25 12:24:50,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 541 transitions, 17566 flow [2021-03-25 12:24:50,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:24:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:24:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 435 transitions. [2021-03-25 12:24:50,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22036474164133737 [2021-03-25 12:24:50,608 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 435 transitions. [2021-03-25 12:24:50,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 435 transitions. [2021-03-25 12:24:50,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:50,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 435 transitions. [2021-03-25 12:24:50,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 31.071428571428573) internal successors, (435), 14 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:50,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:50,609 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:50,609 INFO L185 Difference]: Start difference. First operand has 490 places, 529 transitions, 15973 flow. Second operand 14 states and 435 transitions. [2021-03-25 12:24:50,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 541 transitions, 17566 flow [2021-03-25 12:24:51,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 541 transitions, 17274 flow, removed 18 selfloop flow, removed 10 redundant places. [2021-03-25 12:24:51,194 INFO L241 Difference]: Finished difference. Result has 498 places, 527 transitions, 16020 flow [2021-03-25 12:24:51,194 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15693, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16020, PETRI_PLACES=498, PETRI_TRANSITIONS=527} [2021-03-25 12:24:51,194 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 451 predicate places. [2021-03-25 12:24:51,194 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:51,194 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 498 places, 527 transitions, 16020 flow [2021-03-25 12:24:51,194 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 498 places, 527 transitions, 16020 flow [2021-03-25 12:24:51,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 494 places, 527 transitions, 16020 flow [2021-03-25 12:24:51,395 INFO L129 PetriNetUnfolder]: 348/1025 cut-off events. [2021-03-25 12:24:51,395 INFO L130 PetriNetUnfolder]: For 114235/114241 co-relation queries the response was YES. [2021-03-25 12:24:51,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17554 conditions, 1025 events. 348/1025 cut-off events. For 114235/114241 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 8202 event pairs, 36 based on Foata normal form. 4/1029 useless extension candidates. Maximal degree in co-relation 17320. Up to 312 conditions per place. [2021-03-25 12:24:51,420 INFO L142 LiptonReduction]: Number of co-enabled transitions 902 [2021-03-25 12:24:51,450 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:51,451 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:51,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 257 [2021-03-25 12:24:51,451 INFO L480 AbstractCegarLoop]: Abstraction has has 494 places, 527 transitions, 16020 flow [2021-03-25 12:24:51,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:51,451 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:51,451 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:51,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2021-03-25 12:24:51,451 INFO L428 AbstractCegarLoop]: === Iteration 523 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:51,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2145305743, now seen corresponding path program 14 times [2021-03-25 12:24:51,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:51,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163328609] [2021-03-25 12:24:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:51,456 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:51,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:51,461 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:51,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:51,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:51,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:51,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:51,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:51,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:24:51,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:51,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:51,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:51,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:51,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:51,530 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:51,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:51,546 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:51,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:51,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163328609] [2021-03-25 12:24:51,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:51,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:51,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420971261] [2021-03-25 12:24:51,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:51,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:51,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:51,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:51,549 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:51,549 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 527 transitions, 16020 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:51,549 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:51,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:51,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:52,210 INFO L129 PetriNetUnfolder]: 363/1029 cut-off events. [2021-03-25 12:24:52,210 INFO L130 PetriNetUnfolder]: For 126173/126220 co-relation queries the response was YES. [2021-03-25 12:24:52,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18587 conditions, 1029 events. 363/1029 cut-off events. For 126173/126220 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8001 event pairs, 32 based on Foata normal form. 42/1071 useless extension candidates. Maximal degree in co-relation 18348. Up to 744 conditions per place. [2021-03-25 12:24:52,230 INFO L132 encePairwiseOnDemand]: 125/141 looper letters, 419 selfloop transitions, 104 changer transitions 4/535 dead transitions. [2021-03-25 12:24:52,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 535 transitions, 17409 flow [2021-03-25 12:24:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:24:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:24:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 405 transitions. [2021-03-25 12:24:52,231 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.220949263502455 [2021-03-25 12:24:52,231 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 405 transitions. [2021-03-25 12:24:52,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 405 transitions. [2021-03-25 12:24:52,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:52,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 405 transitions. [2021-03-25 12:24:52,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.153846153846153) internal successors, (405), 13 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:52,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:52,232 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:52,232 INFO L185 Difference]: Start difference. First operand has 494 places, 527 transitions, 16020 flow. Second operand 13 states and 405 transitions. [2021-03-25 12:24:52,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 535 transitions, 17409 flow [2021-03-25 12:24:52,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 535 transitions, 17003 flow, removed 106 selfloop flow, removed 11 redundant places. [2021-03-25 12:24:52,870 INFO L241 Difference]: Finished difference. Result has 499 places, 528 transitions, 15990 flow [2021-03-25 12:24:52,870 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15630, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15990, PETRI_PLACES=499, PETRI_TRANSITIONS=528} [2021-03-25 12:24:52,870 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:24:52,870 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:52,870 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 528 transitions, 15990 flow [2021-03-25 12:24:52,870 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 528 transitions, 15990 flow [2021-03-25 12:24:52,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 528 transitions, 15990 flow [2021-03-25 12:24:53,068 INFO L129 PetriNetUnfolder]: 349/1024 cut-off events. [2021-03-25 12:24:53,068 INFO L130 PetriNetUnfolder]: For 118562/118593 co-relation queries the response was YES. [2021-03-25 12:24:53,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17567 conditions, 1024 events. 349/1024 cut-off events. For 118562/118593 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 8197 event pairs, 34 based on Foata normal form. 7/1029 useless extension candidates. Maximal degree in co-relation 17315. Up to 315 conditions per place. [2021-03-25 12:24:53,092 INFO L142 LiptonReduction]: Number of co-enabled transitions 902 [2021-03-25 12:24:53,122 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:53,122 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:53,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-25 12:24:53,122 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 528 transitions, 15990 flow [2021-03-25 12:24:53,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:53,122 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:53,122 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:53,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2021-03-25 12:24:53,123 INFO L428 AbstractCegarLoop]: === Iteration 524 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:53,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:53,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2023632945, now seen corresponding path program 15 times [2021-03-25 12:24:53,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:53,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004824740] [2021-03-25 12:24:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:53,128 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:53,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:53,133 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:53,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:53,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:53,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:53,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:53,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:53,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:53,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:53,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:53,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:53,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:53,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:53,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:53,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:53,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:53,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:53,192 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:53,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:53,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004824740] [2021-03-25 12:24:53,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:53,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:24:53,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123110022] [2021-03-25 12:24:53,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:24:53,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:53,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:24:53,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:24:53,195 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:53,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 528 transitions, 15990 flow. Second operand has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:53,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:53,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:53,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:53,762 INFO L129 PetriNetUnfolder]: 362/1014 cut-off events. [2021-03-25 12:24:53,762 INFO L130 PetriNetUnfolder]: For 124113/124169 co-relation queries the response was YES. [2021-03-25 12:24:53,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18451 conditions, 1014 events. 362/1014 cut-off events. For 124113/124169 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7789 event pairs, 44 based on Foata normal form. 44/1058 useless extension candidates. Maximal degree in co-relation 18207. Up to 754 conditions per place. [2021-03-25 12:24:53,779 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 427 selfloop transitions, 95 changer transitions 3/533 dead transitions. [2021-03-25 12:24:53,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 533 transitions, 17290 flow [2021-03-25 12:24:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:24:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:24:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 292 transitions. [2021-03-25 12:24:53,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23010244286840031 [2021-03-25 12:24:53,781 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 292 transitions. [2021-03-25 12:24:53,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 292 transitions. [2021-03-25 12:24:53,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:53,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 292 transitions. [2021-03-25 12:24:53,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.44444444444444) internal successors, (292), 9 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:53,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:53,782 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:53,782 INFO L185 Difference]: Start difference. First operand has 498 places, 528 transitions, 15990 flow. Second operand 9 states and 292 transitions. [2021-03-25 12:24:53,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 533 transitions, 17290 flow [2021-03-25 12:24:54,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 533 transitions, 16877 flow, removed 109 selfloop flow, removed 10 redundant places. [2021-03-25 12:24:54,414 INFO L241 Difference]: Finished difference. Result has 499 places, 528 transitions, 15898 flow [2021-03-25 12:24:54,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15577, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=15898, PETRI_PLACES=499, PETRI_TRANSITIONS=528} [2021-03-25 12:24:54,414 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:24:54,414 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:54,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 528 transitions, 15898 flow [2021-03-25 12:24:54,414 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 528 transitions, 15898 flow [2021-03-25 12:24:54,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 528 transitions, 15898 flow [2021-03-25 12:24:54,613 INFO L129 PetriNetUnfolder]: 344/997 cut-off events. [2021-03-25 12:24:54,613 INFO L130 PetriNetUnfolder]: For 125375/125449 co-relation queries the response was YES. [2021-03-25 12:24:54,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17251 conditions, 997 events. 344/997 cut-off events. For 125375/125449 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 7875 event pairs, 39 based on Foata normal form. 18/1014 useless extension candidates. Maximal degree in co-relation 17009. Up to 309 conditions per place. [2021-03-25 12:24:54,636 INFO L142 LiptonReduction]: Number of co-enabled transitions 902 [2021-03-25 12:24:54,667 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:54,667 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:54,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 253 [2021-03-25 12:24:54,667 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 528 transitions, 15898 flow [2021-03-25 12:24:54,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.375) internal successors, (219), 8 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:54,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:54,667 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:54,667 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2021-03-25 12:24:54,667 INFO L428 AbstractCegarLoop]: === Iteration 525 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:54,667 INFO L82 PathProgramCache]: Analyzing trace with hash 527159873, now seen corresponding path program 16 times [2021-03-25 12:24:54,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:54,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581318902] [2021-03-25 12:24:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:54,673 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:54,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:54,678 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:54,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:54,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:54,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:54,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:54,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:54,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:54,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:54,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:54,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:54,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:54,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:54,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:54,732 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:54,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:54,747 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:54,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:54,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:54,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581318902] [2021-03-25 12:24:54,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:54,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:54,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132928966] [2021-03-25 12:24:54,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:54,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:54,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:54,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:54,750 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:54,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 528 transitions, 15898 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:54,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:54,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:54,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:55,357 INFO L129 PetriNetUnfolder]: 361/1013 cut-off events. [2021-03-25 12:24:55,357 INFO L130 PetriNetUnfolder]: For 124836/124892 co-relation queries the response was YES. [2021-03-25 12:24:55,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18354 conditions, 1013 events. 361/1013 cut-off events. For 124836/124892 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7810 event pairs, 44 based on Foata normal form. 44/1057 useless extension candidates. Maximal degree in co-relation 18110. Up to 753 conditions per place. [2021-03-25 12:24:55,376 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 427 selfloop transitions, 90 changer transitions 5/530 dead transitions. [2021-03-25 12:24:55,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 530 transitions, 16970 flow [2021-03-25 12:24:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:24:55,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:24:55,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2021-03-25 12:24:55,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22482269503546098 [2021-03-25 12:24:55,377 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 317 transitions. [2021-03-25 12:24:55,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 317 transitions. [2021-03-25 12:24:55,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:55,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 317 transitions. [2021-03-25 12:24:55,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:55,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:55,378 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:55,378 INFO L185 Difference]: Start difference. First operand has 498 places, 528 transitions, 15898 flow. Second operand 10 states and 317 transitions. [2021-03-25 12:24:55,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 530 transitions, 16970 flow [2021-03-25 12:24:56,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 530 transitions, 16727 flow, removed 59 selfloop flow, removed 6 redundant places. [2021-03-25 12:24:56,019 INFO L241 Difference]: Finished difference. Result has 502 places, 523 transitions, 15692 flow [2021-03-25 12:24:56,020 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15655, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15692, PETRI_PLACES=502, PETRI_TRANSITIONS=523} [2021-03-25 12:24:56,020 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 455 predicate places. [2021-03-25 12:24:56,020 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:56,020 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 523 transitions, 15692 flow [2021-03-25 12:24:56,020 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 523 transitions, 15692 flow [2021-03-25 12:24:56,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 523 transitions, 15692 flow [2021-03-25 12:24:56,240 INFO L129 PetriNetUnfolder]: 349/1003 cut-off events. [2021-03-25 12:24:56,241 INFO L130 PetriNetUnfolder]: For 121053/121099 co-relation queries the response was YES. [2021-03-25 12:24:56,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17346 conditions, 1003 events. 349/1003 cut-off events. For 121053/121099 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7917 event pairs, 31 based on Foata normal form. 10/1011 useless extension candidates. Maximal degree in co-relation 17113. Up to 312 conditions per place. [2021-03-25 12:24:56,264 INFO L142 LiptonReduction]: Number of co-enabled transitions 884 [2021-03-25 12:24:56,294 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:56,294 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:56,294 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 274 [2021-03-25 12:24:56,294 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 523 transitions, 15692 flow [2021-03-25 12:24:56,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:56,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:56,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:56,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2021-03-25 12:24:56,294 INFO L428 AbstractCegarLoop]: === Iteration 526 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1034113771, now seen corresponding path program 17 times [2021-03-25 12:24:56,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:56,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506418440] [2021-03-25 12:24:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:56,300 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:56,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:56,305 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:56,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:56,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:56,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:56,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:56,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:56,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:56,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:56,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:56,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:56,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:56,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:56,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:56,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:56,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:24:56,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:56,378 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:56,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:56,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506418440] [2021-03-25 12:24:56,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:56,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:56,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919170075] [2021-03-25 12:24:56,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:56,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:56,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:56,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:56,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:56,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 523 transitions, 15692 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:56,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:56,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:56,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:56,987 INFO L129 PetriNetUnfolder]: 361/1015 cut-off events. [2021-03-25 12:24:56,987 INFO L130 PetriNetUnfolder]: For 121541/121597 co-relation queries the response was YES. [2021-03-25 12:24:57,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18246 conditions, 1015 events. 361/1015 cut-off events. For 121541/121597 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7792 event pairs, 42 based on Foata normal form. 44/1059 useless extension candidates. Maximal degree in co-relation 18008. Up to 734 conditions per place. [2021-03-25 12:24:57,004 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 416 selfloop transitions, 104 changer transitions 5/533 dead transitions. [2021-03-25 12:24:57,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 533 transitions, 17261 flow [2021-03-25 12:24:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:24:57,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:24:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2021-03-25 12:24:57,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22907801418439716 [2021-03-25 12:24:57,006 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 323 transitions. [2021-03-25 12:24:57,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 323 transitions. [2021-03-25 12:24:57,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:57,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 323 transitions. [2021-03-25 12:24:57,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.3) internal successors, (323), 10 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:57,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:57,007 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:57,007 INFO L185 Difference]: Start difference. First operand has 498 places, 523 transitions, 15692 flow. Second operand 10 states and 323 transitions. [2021-03-25 12:24:57,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 533 transitions, 17261 flow [2021-03-25 12:24:57,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 533 transitions, 16955 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-03-25 12:24:57,651 INFO L241 Difference]: Finished difference. Result has 499 places, 524 transitions, 15759 flow [2021-03-25 12:24:57,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15386, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15759, PETRI_PLACES=499, PETRI_TRANSITIONS=524} [2021-03-25 12:24:57,652 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 452 predicate places. [2021-03-25 12:24:57,652 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:57,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 499 places, 524 transitions, 15759 flow [2021-03-25 12:24:57,652 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 499 places, 524 transitions, 15759 flow [2021-03-25 12:24:57,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 498 places, 524 transitions, 15759 flow [2021-03-25 12:24:57,847 INFO L129 PetriNetUnfolder]: 348/990 cut-off events. [2021-03-25 12:24:57,847 INFO L130 PetriNetUnfolder]: For 123763/123886 co-relation queries the response was YES. [2021-03-25 12:24:57,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17335 conditions, 990 events. 348/990 cut-off events. For 123763/123886 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7753 event pairs, 39 based on Foata normal form. 16/1004 useless extension candidates. Maximal degree in co-relation 17094. Up to 311 conditions per place. [2021-03-25 12:24:57,870 INFO L142 LiptonReduction]: Number of co-enabled transitions 888 [2021-03-25 12:24:57,901 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:57,901 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:57,901 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-25 12:24:57,901 INFO L480 AbstractCegarLoop]: Abstraction has has 498 places, 524 transitions, 15759 flow [2021-03-25 12:24:57,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:57,901 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:57,901 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:57,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2021-03-25 12:24:57,901 INFO L428 AbstractCegarLoop]: === Iteration 527 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:57,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1931972745, now seen corresponding path program 18 times [2021-03-25 12:24:57,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:57,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619372869] [2021-03-25 12:24:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:57,907 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:57,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:57,912 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:57,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:57,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:57,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:57,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:57,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:57,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:57,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:57,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:57,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:57,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:57,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:57,969 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:57,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:57,983 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:57,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:57,999 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:57,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:58,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:58,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619372869] [2021-03-25 12:24:58,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:58,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:24:58,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014656581] [2021-03-25 12:24:58,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:24:58,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:58,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:24:58,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:24:58,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:58,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 524 transitions, 15759 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:58,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:58,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:58,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:24:58,653 INFO L129 PetriNetUnfolder]: 359/1018 cut-off events. [2021-03-25 12:24:58,654 INFO L130 PetriNetUnfolder]: For 121172/121228 co-relation queries the response was YES. [2021-03-25 12:24:58,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18345 conditions, 1018 events. 359/1018 cut-off events. For 121172/121228 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7880 event pairs, 42 based on Foata normal form. 44/1062 useless extension candidates. Maximal degree in co-relation 18102. Up to 740 conditions per place. [2021-03-25 12:24:58,671 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 425 selfloop transitions, 101 changer transitions 3/537 dead transitions. [2021-03-25 12:24:58,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 537 transitions, 17482 flow [2021-03-25 12:24:58,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:24:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:24:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 405 transitions. [2021-03-25 12:24:58,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.220949263502455 [2021-03-25 12:24:58,672 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 405 transitions. [2021-03-25 12:24:58,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 405 transitions. [2021-03-25 12:24:58,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:24:58,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 405 transitions. [2021-03-25 12:24:58,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 31.153846153846153) internal successors, (405), 13 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:58,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:58,673 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:58,674 INFO L185 Difference]: Start difference. First operand has 498 places, 524 transitions, 15759 flow. Second operand 13 states and 405 transitions. [2021-03-25 12:24:58,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 537 transitions, 17482 flow [2021-03-25 12:24:59,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 537 transitions, 16974 flow, removed 118 selfloop flow, removed 9 redundant places. [2021-03-25 12:24:59,360 INFO L241 Difference]: Finished difference. Result has 506 places, 531 transitions, 15966 flow [2021-03-25 12:24:59,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15341, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15966, PETRI_PLACES=506, PETRI_TRANSITIONS=531} [2021-03-25 12:24:59,361 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 459 predicate places. [2021-03-25 12:24:59,361 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:24:59,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 506 places, 531 transitions, 15966 flow [2021-03-25 12:24:59,361 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 506 places, 531 transitions, 15966 flow [2021-03-25 12:24:59,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 531 transitions, 15966 flow [2021-03-25 12:24:59,558 INFO L129 PetriNetUnfolder]: 341/1003 cut-off events. [2021-03-25 12:24:59,558 INFO L130 PetriNetUnfolder]: For 113370/113381 co-relation queries the response was YES. [2021-03-25 12:24:59,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17214 conditions, 1003 events. 341/1003 cut-off events. For 113370/113381 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 8003 event pairs, 34 based on Foata normal form. 7/1010 useless extension candidates. Maximal degree in co-relation 16973. Up to 307 conditions per place. [2021-03-25 12:24:59,582 INFO L142 LiptonReduction]: Number of co-enabled transitions 892 [2021-03-25 12:24:59,612 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:24:59,612 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:24:59,612 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-03-25 12:24:59,612 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 531 transitions, 15966 flow [2021-03-25 12:24:59,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:59,613 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:24:59,613 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:24:59,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2021-03-25 12:24:59,613 INFO L428 AbstractCegarLoop]: === Iteration 528 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:24:59,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:24:59,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1156435345, now seen corresponding path program 19 times [2021-03-25 12:24:59,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:24:59,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329808244] [2021-03-25 12:24:59,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:24:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:24:59,618 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:24:59,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:24:59,623 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:24:59,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:24:59,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:59,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:24:59,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:59,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:59,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:59,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:59,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:24:59,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:59,663 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:59,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:59,666 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:24:59,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:24:59,679 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:24:59,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:24:59,694 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:24:59,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:24:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:24:59,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329808244] [2021-03-25 12:24:59,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:24:59,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:24:59,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213717508] [2021-03-25 12:24:59,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:24:59,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:24:59,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:24:59,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:24:59,697 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:24:59,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 531 transitions, 15966 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:24:59,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:24:59,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:24:59,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:00,305 INFO L129 PetriNetUnfolder]: 357/1010 cut-off events. [2021-03-25 12:25:00,305 INFO L130 PetriNetUnfolder]: For 123270/123452 co-relation queries the response was YES. [2021-03-25 12:25:00,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18199 conditions, 1010 events. 357/1010 cut-off events. For 123270/123452 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7803 event pairs, 42 based on Foata normal form. 57/1067 useless extension candidates. Maximal degree in co-relation 17953. Up to 752 conditions per place. [2021-03-25 12:25:00,323 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 443 selfloop transitions, 81 changer transitions 4/536 dead transitions. [2021-03-25 12:25:00,323 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 536 transitions, 17180 flow [2021-03-25 12:25:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 319 transitions. [2021-03-25 12:25:00,325 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22624113475177304 [2021-03-25 12:25:00,325 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 319 transitions. [2021-03-25 12:25:00,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 319 transitions. [2021-03-25 12:25:00,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:00,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 319 transitions. [2021-03-25 12:25:00,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.9) internal successors, (319), 10 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:00,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:00,326 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:00,326 INFO L185 Difference]: Start difference. First operand has 505 places, 531 transitions, 15966 flow. Second operand 10 states and 319 transitions. [2021-03-25 12:25:00,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 536 transitions, 17180 flow [2021-03-25 12:25:00,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 536 transitions, 16800 flow, removed 174 selfloop flow, removed 4 redundant places. [2021-03-25 12:25:00,978 INFO L241 Difference]: Finished difference. Result has 511 places, 529 transitions, 15738 flow [2021-03-25 12:25:00,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15624, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15738, PETRI_PLACES=511, PETRI_TRANSITIONS=529} [2021-03-25 12:25:00,979 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:25:00,979 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:00,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 529 transitions, 15738 flow [2021-03-25 12:25:00,979 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 529 transitions, 15738 flow [2021-03-25 12:25:00,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 510 places, 529 transitions, 15738 flow [2021-03-25 12:25:01,182 INFO L129 PetriNetUnfolder]: 346/1000 cut-off events. [2021-03-25 12:25:01,182 INFO L130 PetriNetUnfolder]: For 116942/116997 co-relation queries the response was YES. [2021-03-25 12:25:01,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17258 conditions, 1000 events. 346/1000 cut-off events. For 116942/116997 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 7914 event pairs, 29 based on Foata normal form. 4/1000 useless extension candidates. Maximal degree in co-relation 17022. Up to 311 conditions per place. [2021-03-25 12:25:01,211 INFO L142 LiptonReduction]: Number of co-enabled transitions 892 [2021-03-25 12:25:01,243 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:01,243 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:01,243 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-03-25 12:25:01,243 INFO L480 AbstractCegarLoop]: Abstraction has has 510 places, 529 transitions, 15738 flow [2021-03-25 12:25:01,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:01,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:01,243 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:01,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2021-03-25 12:25:01,243 INFO L428 AbstractCegarLoop]: === Iteration 529 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:01,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:01,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1189948173, now seen corresponding path program 20 times [2021-03-25 12:25:01,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:01,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130555548] [2021-03-25 12:25:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:01,249 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:01,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:01,254 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:01,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:01,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:01,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:01,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:01,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:01,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:01,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:01,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:01,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:01,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:01,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:01,311 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:01,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:01,325 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:01,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:01,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130555548] [2021-03-25 12:25:01,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:01,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:01,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747410056] [2021-03-25 12:25:01,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:01,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:01,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:01,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:01,330 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:01,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 529 transitions, 15738 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:01,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:01,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:01,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:01,942 INFO L129 PetriNetUnfolder]: 356/1001 cut-off events. [2021-03-25 12:25:01,943 INFO L130 PetriNetUnfolder]: For 117097/117153 co-relation queries the response was YES. [2021-03-25 12:25:01,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17965 conditions, 1001 events. 356/1001 cut-off events. For 117097/117153 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7682 event pairs, 42 based on Foata normal form. 44/1045 useless extension candidates. Maximal degree in co-relation 17724. Up to 750 conditions per place. [2021-03-25 12:25:01,960 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 447 selfloop transitions, 72 changer transitions 7/534 dead transitions. [2021-03-25 12:25:01,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 534 transitions, 16861 flow [2021-03-25 12:25:01,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:01,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2021-03-25 12:25:01,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22411347517730495 [2021-03-25 12:25:01,961 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 316 transitions. [2021-03-25 12:25:01,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 316 transitions. [2021-03-25 12:25:01,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:01,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 316 transitions. [2021-03-25 12:25:01,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.6) internal successors, (316), 10 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:01,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:01,962 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:01,962 INFO L185 Difference]: Start difference. First operand has 510 places, 529 transitions, 15738 flow. Second operand 10 states and 316 transitions. [2021-03-25 12:25:01,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 534 transitions, 16861 flow [2021-03-25 12:25:02,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 534 transitions, 16670 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:02,638 INFO L241 Difference]: Finished difference. Result has 511 places, 523 transitions, 15418 flow [2021-03-25 12:25:02,638 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15547, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15418, PETRI_PLACES=511, PETRI_TRANSITIONS=523} [2021-03-25 12:25:02,638 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 464 predicate places. [2021-03-25 12:25:02,638 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:02,638 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 511 places, 523 transitions, 15418 flow [2021-03-25 12:25:02,638 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 511 places, 523 transitions, 15418 flow [2021-03-25 12:25:02,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 523 transitions, 15418 flow [2021-03-25 12:25:02,843 INFO L129 PetriNetUnfolder]: 338/985 cut-off events. [2021-03-25 12:25:02,843 INFO L130 PetriNetUnfolder]: For 111175/111244 co-relation queries the response was YES. [2021-03-25 12:25:02,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16856 conditions, 985 events. 338/985 cut-off events. For 111175/111244 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7807 event pairs, 37 based on Foata normal form. 7/992 useless extension candidates. Maximal degree in co-relation 16619. Up to 301 conditions per place. [2021-03-25 12:25:02,866 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 12:25:02,894 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:02,894 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:02,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 256 [2021-03-25 12:25:02,894 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 523 transitions, 15418 flow [2021-03-25 12:25:02,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:02,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:02,895 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:02,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2021-03-25 12:25:02,895 INFO L428 AbstractCegarLoop]: === Iteration 530 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:02,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:02,895 INFO L82 PathProgramCache]: Analyzing trace with hash -178387591, now seen corresponding path program 21 times [2021-03-25 12:25:02,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:02,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713441199] [2021-03-25 12:25:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:02,901 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:02,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:02,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:02,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:02,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:02,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:02,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:02,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:02,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:02,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:02,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:02,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:02,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:02,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:02,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:02,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:02,977 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:02,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:02,983 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:02,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:02,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713441199] [2021-03-25 12:25:02,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:02,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:02,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629859933] [2021-03-25 12:25:02,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:02,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:02,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:02,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:02,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:02,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 523 transitions, 15418 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:02,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:02,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:02,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:03,612 INFO L129 PetriNetUnfolder]: 355/1003 cut-off events. [2021-03-25 12:25:03,612 INFO L130 PetriNetUnfolder]: For 117239/117295 co-relation queries the response was YES. [2021-03-25 12:25:03,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17931 conditions, 1003 events. 355/1003 cut-off events. For 117239/117295 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7709 event pairs, 44 based on Foata normal form. 44/1047 useless extension candidates. Maximal degree in co-relation 17689. Up to 759 conditions per place. [2021-03-25 12:25:03,631 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 451 selfloop transitions, 64 changer transitions 6/529 dead transitions. [2021-03-25 12:25:03,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 529 transitions, 16762 flow [2021-03-25 12:25:03,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 341 transitions. [2021-03-25 12:25:03,633 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2198581560283688 [2021-03-25 12:25:03,633 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 341 transitions. [2021-03-25 12:25:03,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 341 transitions. [2021-03-25 12:25:03,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:03,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 341 transitions. [2021-03-25 12:25:03,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.0) internal successors, (341), 11 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:03,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:03,634 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:03,634 INFO L185 Difference]: Start difference. First operand has 508 places, 523 transitions, 15418 flow. Second operand 11 states and 341 transitions. [2021-03-25 12:25:03,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 529 transitions, 16762 flow [2021-03-25 12:25:04,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 529 transitions, 16561 flow, removed 5 selfloop flow, removed 11 redundant places. [2021-03-25 12:25:04,256 INFO L241 Difference]: Finished difference. Result has 509 places, 521 transitions, 15281 flow [2021-03-25 12:25:04,256 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15225, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15281, PETRI_PLACES=509, PETRI_TRANSITIONS=521} [2021-03-25 12:25:04,256 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:25:04,256 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:04,256 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 521 transitions, 15281 flow [2021-03-25 12:25:04,256 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 521 transitions, 15281 flow [2021-03-25 12:25:04,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 504 places, 521 transitions, 15281 flow [2021-03-25 12:25:04,450 INFO L129 PetriNetUnfolder]: 337/974 cut-off events. [2021-03-25 12:25:04,450 INFO L130 PetriNetUnfolder]: For 116879/116970 co-relation queries the response was YES. [2021-03-25 12:25:04,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16713 conditions, 974 events. 337/974 cut-off events. For 116879/116970 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7613 event pairs, 36 based on Foata normal form. 15/989 useless extension candidates. Maximal degree in co-relation 16477. Up to 301 conditions per place. [2021-03-25 12:25:04,473 INFO L142 LiptonReduction]: Number of co-enabled transitions 880 [2021-03-25 12:25:04,503 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:04,503 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:04,503 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 247 [2021-03-25 12:25:04,503 INFO L480 AbstractCegarLoop]: Abstraction has has 504 places, 521 transitions, 15281 flow [2021-03-25 12:25:04,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:04,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:04,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:04,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2021-03-25 12:25:04,503 INFO L428 AbstractCegarLoop]: === Iteration 531 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:04,503 INFO L82 PathProgramCache]: Analyzing trace with hash -602370189, now seen corresponding path program 22 times [2021-03-25 12:25:04,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:04,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287757363] [2021-03-25 12:25:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:04,510 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:04,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:04,515 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:04,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:04,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:04,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:04,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:04,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:04,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:04,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:04,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:04,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:04,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:04,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:04,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:04,585 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:04,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:04,591 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:04,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:04,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287757363] [2021-03-25 12:25:04,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:04,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:04,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161990635] [2021-03-25 12:25:04,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:04,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:04,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:04,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:04,594 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:04,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 521 transitions, 15281 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:04,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:04,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:04,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:05,182 INFO L129 PetriNetUnfolder]: 353/993 cut-off events. [2021-03-25 12:25:05,183 INFO L130 PetriNetUnfolder]: For 118371/118553 co-relation queries the response was YES. [2021-03-25 12:25:05,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17758 conditions, 993 events. 353/993 cut-off events. For 118371/118553 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7617 event pairs, 42 based on Foata normal form. 57/1050 useless extension candidates. Maximal degree in co-relation 17517. Up to 756 conditions per place. [2021-03-25 12:25:05,202 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 448 selfloop transitions, 66 changer transitions 2/524 dead transitions. [2021-03-25 12:25:05,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 524 transitions, 16423 flow [2021-03-25 12:25:05,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2021-03-25 12:25:05,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22198581560283687 [2021-03-25 12:25:05,204 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 313 transitions. [2021-03-25 12:25:05,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 313 transitions. [2021-03-25 12:25:05,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:05,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 313 transitions. [2021-03-25 12:25:05,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 31.3) internal successors, (313), 10 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:05,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:05,205 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:05,205 INFO L185 Difference]: Start difference. First operand has 504 places, 521 transitions, 15281 flow. Second operand 10 states and 313 transitions. [2021-03-25 12:25:05,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 524 transitions, 16423 flow [2021-03-25 12:25:05,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 524 transitions, 16289 flow, removed 3 selfloop flow, removed 8 redundant places. [2021-03-25 12:25:05,838 INFO L241 Difference]: Finished difference. Result has 507 places, 520 transitions, 15307 flow [2021-03-25 12:25:05,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15149, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15307, PETRI_PLACES=507, PETRI_TRANSITIONS=520} [2021-03-25 12:25:05,839 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 460 predicate places. [2021-03-25 12:25:05,839 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:05,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 520 transitions, 15307 flow [2021-03-25 12:25:05,839 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 520 transitions, 15307 flow [2021-03-25 12:25:05,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 520 transitions, 15307 flow [2021-03-25 12:25:06,064 INFO L129 PetriNetUnfolder]: 342/983 cut-off events. [2021-03-25 12:25:06,064 INFO L130 PetriNetUnfolder]: For 114454/114511 co-relation queries the response was YES. [2021-03-25 12:25:06,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16979 conditions, 983 events. 342/983 cut-off events. For 114454/114511 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7754 event pairs, 27 based on Foata normal form. 5/984 useless extension candidates. Maximal degree in co-relation 16735. Up to 307 conditions per place. [2021-03-25 12:25:06,086 INFO L142 LiptonReduction]: Number of co-enabled transitions 880 [2021-03-25 12:25:06,115 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:06,115 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:06,115 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 276 [2021-03-25 12:25:06,115 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 520 transitions, 15307 flow [2021-03-25 12:25:06,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:06,116 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:06,116 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:06,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2021-03-25 12:25:06,116 INFO L428 AbstractCegarLoop]: === Iteration 532 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:06,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1494544895, now seen corresponding path program 23 times [2021-03-25 12:25:06,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:06,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578028633] [2021-03-25 12:25:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:06,121 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:06,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:06,127 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:06,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:06,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:06,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:06,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:06,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:06,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:06,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:06,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:06,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:06,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:06,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:06,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:06,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:06,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:06,216 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:06,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:06,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578028633] [2021-03-25 12:25:06,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:06,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:06,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966414732] [2021-03-25 12:25:06,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:06,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:06,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:06,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:06,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:06,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 520 transitions, 15307 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:06,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:06,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:06,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:06,835 INFO L129 PetriNetUnfolder]: 352/990 cut-off events. [2021-03-25 12:25:06,835 INFO L130 PetriNetUnfolder]: For 114392/114448 co-relation queries the response was YES. [2021-03-25 12:25:06,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17776 conditions, 990 events. 352/990 cut-off events. For 114392/114448 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7593 event pairs, 42 based on Foata normal form. 44/1034 useless extension candidates. Maximal degree in co-relation 17530. Up to 755 conditions per place. [2021-03-25 12:25:06,853 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 448 selfloop transitions, 65 changer transitions 2/523 dead transitions. [2021-03-25 12:25:06,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 523 transitions, 16447 flow [2021-03-25 12:25:06,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:06,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2021-03-25 12:25:06,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21513002364066194 [2021-03-25 12:25:06,854 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 364 transitions. [2021-03-25 12:25:06,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 364 transitions. [2021-03-25 12:25:06,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:06,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 364 transitions. [2021-03-25 12:25:06,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:06,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:06,855 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:06,855 INFO L185 Difference]: Start difference. First operand has 507 places, 520 transitions, 15307 flow. Second operand 12 states and 364 transitions. [2021-03-25 12:25:06,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 523 transitions, 16447 flow [2021-03-25 12:25:07,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 523 transitions, 16279 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 12:25:07,521 INFO L241 Difference]: Finished difference. Result has 509 places, 519 transitions, 15239 flow [2021-03-25 12:25:07,521 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15141, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15239, PETRI_PLACES=509, PETRI_TRANSITIONS=519} [2021-03-25 12:25:07,521 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:25:07,521 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:07,521 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 519 transitions, 15239 flow [2021-03-25 12:25:07,522 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 519 transitions, 15239 flow [2021-03-25 12:25:07,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 508 places, 519 transitions, 15239 flow [2021-03-25 12:25:07,715 INFO L129 PetriNetUnfolder]: 334/971 cut-off events. [2021-03-25 12:25:07,715 INFO L130 PetriNetUnfolder]: For 116131/116185 co-relation queries the response was YES. [2021-03-25 12:25:07,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16658 conditions, 971 events. 334/971 cut-off events. For 116131/116185 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7642 event pairs, 32 based on Foata normal form. 16/987 useless extension candidates. Maximal degree in co-relation 16417. Up to 299 conditions per place. [2021-03-25 12:25:07,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 876 [2021-03-25 12:25:07,768 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:07,768 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:07,768 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 247 [2021-03-25 12:25:07,768 INFO L480 AbstractCegarLoop]: Abstraction has has 508 places, 519 transitions, 15239 flow [2021-03-25 12:25:07,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:07,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:07,768 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:07,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2021-03-25 12:25:07,768 INFO L428 AbstractCegarLoop]: === Iteration 533 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:07,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:07,769 INFO L82 PathProgramCache]: Analyzing trace with hash 606909897, now seen corresponding path program 24 times [2021-03-25 12:25:07,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:07,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677101943] [2021-03-25 12:25:07,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:07,774 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:07,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:07,779 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:07,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:07,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:07,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:07,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:07,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:07,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:07,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:07,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:07,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:07,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:07,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:07,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:07,850 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:07,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:07,866 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:07,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:07,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677101943] [2021-03-25 12:25:07,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:07,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:07,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277925033] [2021-03-25 12:25:07,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:07,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:07,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:07,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:07,870 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:07,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 519 transitions, 15239 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:07,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:07,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:07,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:08,515 INFO L129 PetriNetUnfolder]: 351/997 cut-off events. [2021-03-25 12:25:08,515 INFO L130 PetriNetUnfolder]: For 116326/116367 co-relation queries the response was YES. [2021-03-25 12:25:08,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17700 conditions, 997 events. 351/997 cut-off events. For 116326/116367 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7705 event pairs, 39 based on Foata normal form. 36/1033 useless extension candidates. Maximal degree in co-relation 17454. Up to 752 conditions per place. [2021-03-25 12:25:08,532 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 449 selfloop transitions, 62 changer transitions 3/522 dead transitions. [2021-03-25 12:25:08,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 522 transitions, 16303 flow [2021-03-25 12:25:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 415 transitions. [2021-03-25 12:25:08,534 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21023302938196556 [2021-03-25 12:25:08,534 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 415 transitions. [2021-03-25 12:25:08,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 415 transitions. [2021-03-25 12:25:08,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:08,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 415 transitions. [2021-03-25 12:25:08,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.642857142857142) internal successors, (415), 14 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:08,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:08,535 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:08,535 INFO L185 Difference]: Start difference. First operand has 508 places, 519 transitions, 15239 flow. Second operand 14 states and 415 transitions. [2021-03-25 12:25:08,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 522 transitions, 16303 flow [2021-03-25 12:25:09,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 522 transitions, 16066 flow, removed 15 selfloop flow, removed 13 redundant places. [2021-03-25 12:25:09,195 INFO L241 Difference]: Finished difference. Result has 509 places, 516 transitions, 14996 flow [2021-03-25 12:25:09,195 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=15004, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14996, PETRI_PLACES=509, PETRI_TRANSITIONS=516} [2021-03-25 12:25:09,195 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 462 predicate places. [2021-03-25 12:25:09,195 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:09,195 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 509 places, 516 transitions, 14996 flow [2021-03-25 12:25:09,195 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 509 places, 516 transitions, 14996 flow [2021-03-25 12:25:09,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 505 places, 516 transitions, 14996 flow [2021-03-25 12:25:09,398 INFO L129 PetriNetUnfolder]: 334/968 cut-off events. [2021-03-25 12:25:09,398 INFO L130 PetriNetUnfolder]: For 108491/108560 co-relation queries the response was YES. [2021-03-25 12:25:09,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16536 conditions, 968 events. 334/968 cut-off events. For 108491/108560 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7590 event pairs, 27 based on Foata normal form. 7/974 useless extension candidates. Maximal degree in co-relation 16301. Up to 299 conditions per place. [2021-03-25 12:25:09,457 INFO L142 LiptonReduction]: Number of co-enabled transitions 868 [2021-03-25 12:25:09,486 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:09,486 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:09,486 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 291 [2021-03-25 12:25:09,486 INFO L480 AbstractCegarLoop]: Abstraction has has 505 places, 516 transitions, 14996 flow [2021-03-25 12:25:09,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:09,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:09,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:09,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2021-03-25 12:25:09,487 INFO L428 AbstractCegarLoop]: === Iteration 534 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:09,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:09,487 INFO L82 PathProgramCache]: Analyzing trace with hash -545255871, now seen corresponding path program 25 times [2021-03-25 12:25:09,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:09,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746818633] [2021-03-25 12:25:09,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:09,492 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:09,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:09,497 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:09,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:09,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:09,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:09,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:09,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:09,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:09,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:09,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:09,540 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:09,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:09,543 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:09,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:09,556 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:09,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:09,570 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:09,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:09,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746818633] [2021-03-25 12:25:09,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:09,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:09,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777911661] [2021-03-25 12:25:09,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:09,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:09,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:09,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:09,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:09,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 516 transitions, 14996 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:09,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:09,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:09,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:10,199 INFO L129 PetriNetUnfolder]: 351/989 cut-off events. [2021-03-25 12:25:10,199 INFO L130 PetriNetUnfolder]: For 115099/115155 co-relation queries the response was YES. [2021-03-25 12:25:10,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17541 conditions, 989 events. 351/989 cut-off events. For 115099/115155 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7592 event pairs, 33 based on Foata normal form. 44/1033 useless extension candidates. Maximal degree in co-relation 17306. Up to 727 conditions per place. [2021-03-25 12:25:10,217 INFO L132 encePairwiseOnDemand]: 125/141 looper letters, 417 selfloop transitions, 90 changer transitions 4/519 dead transitions. [2021-03-25 12:25:10,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 519 transitions, 16060 flow [2021-03-25 12:25:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:10,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2021-03-25 12:25:10,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2276595744680851 [2021-03-25 12:25:10,218 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 321 transitions. [2021-03-25 12:25:10,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 321 transitions. [2021-03-25 12:25:10,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:10,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 321 transitions. [2021-03-25 12:25:10,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 32.1) internal successors, (321), 10 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:10,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:10,219 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:10,219 INFO L185 Difference]: Start difference. First operand has 505 places, 516 transitions, 14996 flow. Second operand 10 states and 321 transitions. [2021-03-25 12:25:10,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 519 transitions, 16060 flow [2021-03-25 12:25:10,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 519 transitions, 15868 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:25:10,848 INFO L241 Difference]: Finished difference. Result has 503 places, 512 transitions, 14930 flow [2021-03-25 12:25:10,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=14804, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14930, PETRI_PLACES=503, PETRI_TRANSITIONS=512} [2021-03-25 12:25:10,848 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 456 predicate places. [2021-03-25 12:25:10,848 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:10,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 503 places, 512 transitions, 14930 flow [2021-03-25 12:25:10,848 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 503 places, 512 transitions, 14930 flow [2021-03-25 12:25:10,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 500 places, 512 transitions, 14930 flow [2021-03-25 12:25:11,036 INFO L129 PetriNetUnfolder]: 335/968 cut-off events. [2021-03-25 12:25:11,036 INFO L130 PetriNetUnfolder]: For 108207/108218 co-relation queries the response was YES. [2021-03-25 12:25:11,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16583 conditions, 968 events. 335/968 cut-off events. For 108207/108218 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7598 event pairs, 29 based on Foata normal form. 7/975 useless extension candidates. Maximal degree in co-relation 16362. Up to 298 conditions per place. [2021-03-25 12:25:11,058 INFO L142 LiptonReduction]: Number of co-enabled transitions 868 [2021-03-25 12:25:11,087 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:11,087 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:11,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 239 [2021-03-25 12:25:11,087 INFO L480 AbstractCegarLoop]: Abstraction has has 500 places, 512 transitions, 14930 flow [2021-03-25 12:25:11,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:11,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:11,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:11,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-03-25 12:25:11,088 INFO L428 AbstractCegarLoop]: === Iteration 535 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:11,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1725649567, now seen corresponding path program 26 times [2021-03-25 12:25:11,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:11,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573792340] [2021-03-25 12:25:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:11,104 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:11,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:11,110 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:11,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:11,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:11,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:11,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:11,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:11,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:11,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:11,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:11,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:11,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:11,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:11,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:11,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:11,182 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:11,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:11,197 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:11,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:11,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573792340] [2021-03-25 12:25:11,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:11,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:11,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293588697] [2021-03-25 12:25:11,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:11,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:11,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:11,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:11,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:11,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 512 transitions, 14930 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:11,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:11,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:11,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:11,829 INFO L129 PetriNetUnfolder]: 350/985 cut-off events. [2021-03-25 12:25:11,829 INFO L130 PetriNetUnfolder]: For 114532/114588 co-relation queries the response was YES. [2021-03-25 12:25:11,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17522 conditions, 985 events. 350/985 cut-off events. For 114532/114588 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 7568 event pairs, 30 based on Foata normal form. 44/1029 useless extension candidates. Maximal degree in co-relation 17299. Up to 729 conditions per place. [2021-03-25 12:25:11,846 INFO L132 encePairwiseOnDemand]: 125/141 looper letters, 423 selfloop transitions, 82 changer transitions 3/516 dead transitions. [2021-03-25 12:25:11,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 516 transitions, 16045 flow [2021-03-25 12:25:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 344 transitions. [2021-03-25 12:25:11,847 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22179239200515796 [2021-03-25 12:25:11,847 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 344 transitions. [2021-03-25 12:25:11,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 344 transitions. [2021-03-25 12:25:11,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:11,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 344 transitions. [2021-03-25 12:25:11,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.272727272727273) internal successors, (344), 11 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:11,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:11,848 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:11,848 INFO L185 Difference]: Start difference. First operand has 500 places, 512 transitions, 14930 flow. Second operand 11 states and 344 transitions. [2021-03-25 12:25:11,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 516 transitions, 16045 flow [2021-03-25 12:25:12,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 516 transitions, 15808 flow, removed 2 selfloop flow, removed 12 redundant places. [2021-03-25 12:25:12,426 INFO L241 Difference]: Finished difference. Result has 500 places, 510 transitions, 14835 flow [2021-03-25 12:25:12,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=14693, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14835, PETRI_PLACES=500, PETRI_TRANSITIONS=510} [2021-03-25 12:25:12,427 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 453 predicate places. [2021-03-25 12:25:12,427 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:12,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 510 transitions, 14835 flow [2021-03-25 12:25:12,427 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 510 transitions, 14835 flow [2021-03-25 12:25:12,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 496 places, 510 transitions, 14835 flow [2021-03-25 12:25:12,614 INFO L129 PetriNetUnfolder]: 341/975 cut-off events. [2021-03-25 12:25:12,614 INFO L130 PetriNetUnfolder]: For 114360/114428 co-relation queries the response was YES. [2021-03-25 12:25:12,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16778 conditions, 975 events. 341/975 cut-off events. For 114360/114428 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7661 event pairs, 31 based on Foata normal form. 10/981 useless extension candidates. Maximal degree in co-relation 16554. Up to 306 conditions per place. [2021-03-25 12:25:12,636 INFO L142 LiptonReduction]: Number of co-enabled transitions 866 [2021-03-25 12:25:12,665 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:12,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:12,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 238 [2021-03-25 12:25:12,665 INFO L480 AbstractCegarLoop]: Abstraction has has 496 places, 510 transitions, 14835 flow [2021-03-25 12:25:12,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:12,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:12,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:12,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2021-03-25 12:25:12,665 INFO L428 AbstractCegarLoop]: === Iteration 536 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:12,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:12,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1579624247, now seen corresponding path program 27 times [2021-03-25 12:25:12,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:12,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094047981] [2021-03-25 12:25:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:12,673 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:12,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:12,678 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:12,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:12,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:12,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:12,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:12,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:12,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:12,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:12,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:12,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:12,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:12,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:12,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:12,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:12,746 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:12,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:12,762 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:12,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:12,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094047981] [2021-03-25 12:25:12,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:12,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:12,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67510291] [2021-03-25 12:25:12,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:12,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:12,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:12,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:12,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:12,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 510 transitions, 14835 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:12,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:12,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:12,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:13,388 INFO L129 PetriNetUnfolder]: 349/981 cut-off events. [2021-03-25 12:25:13,388 INFO L130 PetriNetUnfolder]: For 113898/113954 co-relation queries the response was YES. [2021-03-25 12:25:13,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17465 conditions, 981 events. 349/981 cut-off events. For 113898/113954 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7529 event pairs, 36 based on Foata normal form. 44/1025 useless extension candidates. Maximal degree in co-relation 17231. Up to 722 conditions per place. [2021-03-25 12:25:13,405 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 409 selfloop transitions, 88 changer transitions 8/513 dead transitions. [2021-03-25 12:25:13,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 513 transitions, 15929 flow [2021-03-25 12:25:13,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 346 transitions. [2021-03-25 12:25:13,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22308188265635073 [2021-03-25 12:25:13,407 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 346 transitions. [2021-03-25 12:25:13,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 346 transitions. [2021-03-25 12:25:13,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:13,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 346 transitions. [2021-03-25 12:25:13,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.454545454545453) internal successors, (346), 11 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:13,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:13,408 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:13,408 INFO L185 Difference]: Start difference. First operand has 496 places, 510 transitions, 14835 flow. Second operand 11 states and 346 transitions. [2021-03-25 12:25:13,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 513 transitions, 15929 flow [2021-03-25 12:25:14,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 513 transitions, 15759 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:14,069 INFO L241 Difference]: Finished difference. Result has 497 places, 503 transitions, 14683 flow [2021-03-25 12:25:14,069 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=14665, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14683, PETRI_PLACES=497, PETRI_TRANSITIONS=503} [2021-03-25 12:25:14,069 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:25:14,069 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:14,069 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 503 transitions, 14683 flow [2021-03-25 12:25:14,069 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 503 transitions, 14683 flow [2021-03-25 12:25:14,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 493 places, 503 transitions, 14683 flow [2021-03-25 12:25:14,263 INFO L129 PetriNetUnfolder]: 331/943 cut-off events. [2021-03-25 12:25:14,263 INFO L130 PetriNetUnfolder]: For 109785/109813 co-relation queries the response was YES. [2021-03-25 12:25:14,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16288 conditions, 943 events. 331/943 cut-off events. For 109785/109813 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7324 event pairs, 30 based on Foata normal form. 13/956 useless extension candidates. Maximal degree in co-relation 16060. Up to 293 conditions per place. [2021-03-25 12:25:14,286 INFO L142 LiptonReduction]: Number of co-enabled transitions 846 [2021-03-25 12:25:14,315 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:14,315 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:14,315 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 246 [2021-03-25 12:25:14,315 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 503 transitions, 14683 flow [2021-03-25 12:25:14,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:14,315 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:14,315 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:14,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2021-03-25 12:25:14,316 INFO L428 AbstractCegarLoop]: === Iteration 537 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:14,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:14,316 INFO L82 PathProgramCache]: Analyzing trace with hash 150453375, now seen corresponding path program 28 times [2021-03-25 12:25:14,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:14,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628061700] [2021-03-25 12:25:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:14,336 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:14,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:14,342 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:14,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:14,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:14,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:14,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:14,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:14,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:14,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:14,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:14,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:14,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:14,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:14,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:14,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:14,417 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:14,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:14,434 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:14,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:14,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628061700] [2021-03-25 12:25:14,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:14,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:14,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403919891] [2021-03-25 12:25:14,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:14,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:14,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:14,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:14,437 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 141 [2021-03-25 12:25:14,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 503 transitions, 14683 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:14,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:14,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 141 [2021-03-25 12:25:14,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:15,088 INFO L129 PetriNetUnfolder]: 346/969 cut-off events. [2021-03-25 12:25:15,089 INFO L130 PetriNetUnfolder]: For 114275/114331 co-relation queries the response was YES. [2021-03-25 12:25:15,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17385 conditions, 969 events. 346/969 cut-off events. For 114275/114331 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7356 event pairs, 42 based on Foata normal form. 44/1013 useless extension candidates. Maximal degree in co-relation 17148. Up to 730 conditions per place. [2021-03-25 12:25:15,112 INFO L132 encePairwiseOnDemand]: 127/141 looper letters, 428 selfloop transitions, 68 changer transitions 5/509 dead transitions. [2021-03-25 12:25:15,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 509 transitions, 15845 flow [2021-03-25 12:25:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:25:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:25:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 449 transitions. [2021-03-25 12:25:15,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21229314420803783 [2021-03-25 12:25:15,124 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 449 transitions. [2021-03-25 12:25:15,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 449 transitions. [2021-03-25 12:25:15,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:15,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 449 transitions. [2021-03-25 12:25:15,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.933333333333334) internal successors, (449), 15 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:15,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:15,126 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:15,126 INFO L185 Difference]: Start difference. First operand has 493 places, 503 transitions, 14683 flow. Second operand 15 states and 449 transitions. [2021-03-25 12:25:15,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 509 transitions, 15845 flow [2021-03-25 12:25:15,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 509 transitions, 15533 flow, removed 3 selfloop flow, removed 13 redundant places. [2021-03-25 12:25:15,765 INFO L241 Difference]: Finished difference. Result has 497 places, 501 transitions, 14484 flow [2021-03-25 12:25:15,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=14377, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14484, PETRI_PLACES=497, PETRI_TRANSITIONS=501} [2021-03-25 12:25:15,765 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 450 predicate places. [2021-03-25 12:25:15,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:15,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 497 places, 501 transitions, 14484 flow [2021-03-25 12:25:15,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 497 places, 501 transitions, 14484 flow [2021-03-25 12:25:15,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 493 places, 501 transitions, 14484 flow [2021-03-25 12:25:15,959 INFO L129 PetriNetUnfolder]: 328/951 cut-off events. [2021-03-25 12:25:15,959 INFO L130 PetriNetUnfolder]: For 108600/108606 co-relation queries the response was YES. [2021-03-25 12:25:15,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16303 conditions, 951 events. 328/951 cut-off events. For 108600/108606 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 7423 event pairs, 29 based on Foata normal form. 4/955 useless extension candidates. Maximal degree in co-relation 16071. Up to 292 conditions per place. [2021-03-25 12:25:15,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 844 [2021-03-25 12:25:16,075 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:16,075 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:25:16,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-03-25 12:25:16,075 INFO L480 AbstractCegarLoop]: Abstraction has has 493 places, 501 transitions, 14496 flow [2021-03-25 12:25:16,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:16,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:16,075 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:16,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2021-03-25 12:25:16,075 INFO L428 AbstractCegarLoop]: === Iteration 538 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:16,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1502930729, now seen corresponding path program 29 times [2021-03-25 12:25:16,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:16,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466810120] [2021-03-25 12:25:16,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:16,092 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:16,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:16,098 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:16,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:16,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:16,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:16,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:16,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:16,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:16,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:16,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:16,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:16,162 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:16,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:16,178 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:16,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:16,195 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:16,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466810120] [2021-03-25 12:25:16,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:16,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:16,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115851106] [2021-03-25 12:25:16,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:16,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:16,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:16,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:16,198 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:16,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 501 transitions, 14496 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:16,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:16,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:16,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:16,852 INFO L129 PetriNetUnfolder]: 343/964 cut-off events. [2021-03-25 12:25:16,852 INFO L130 PetriNetUnfolder]: For 112843/112899 co-relation queries the response was YES. [2021-03-25 12:25:16,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17213 conditions, 964 events. 343/964 cut-off events. For 112843/112899 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7322 event pairs, 42 based on Foata normal form. 44/1008 useless extension candidates. Maximal degree in co-relation 16971. Up to 726 conditions per place. [2021-03-25 12:25:16,868 INFO L132 encePairwiseOnDemand]: 127/142 looper letters, 425 selfloop transitions, 67 changer transitions 4/504 dead transitions. [2021-03-25 12:25:16,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 504 transitions, 15524 flow [2021-03-25 12:25:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 419 transitions. [2021-03-25 12:25:16,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2107645875251509 [2021-03-25 12:25:16,870 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 419 transitions. [2021-03-25 12:25:16,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 419 transitions. [2021-03-25 12:25:16,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:16,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 419 transitions. [2021-03-25 12:25:16,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.928571428571427) internal successors, (419), 14 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:16,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:16,871 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:16,871 INFO L185 Difference]: Start difference. First operand has 493 places, 501 transitions, 14496 flow. Second operand 14 states and 419 transitions. [2021-03-25 12:25:16,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 504 transitions, 15524 flow [2021-03-25 12:25:17,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 504 transitions, 15277 flow, removed 18 selfloop flow, removed 12 redundant places. [2021-03-25 12:25:17,502 INFO L241 Difference]: Finished difference. Result has 495 places, 497 transitions, 14282 flow [2021-03-25 12:25:17,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=14251, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14282, PETRI_PLACES=495, PETRI_TRANSITIONS=497} [2021-03-25 12:25:17,502 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 448 predicate places. [2021-03-25 12:25:17,502 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:17,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 495 places, 497 transitions, 14282 flow [2021-03-25 12:25:17,502 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 495 places, 497 transitions, 14282 flow [2021-03-25 12:25:17,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 492 places, 497 transitions, 14282 flow [2021-03-25 12:25:17,696 INFO L129 PetriNetUnfolder]: 328/953 cut-off events. [2021-03-25 12:25:17,696 INFO L130 PetriNetUnfolder]: For 105896/105906 co-relation queries the response was YES. [2021-03-25 12:25:17,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16079 conditions, 953 events. 328/953 cut-off events. For 105896/105906 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7434 event pairs, 40 based on Foata normal form. 7/959 useless extension candidates. Maximal degree in co-relation 15845. Up to 288 conditions per place. [2021-03-25 12:25:17,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-25 12:25:17,750 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:17,750 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:17,751 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-25 12:25:17,751 INFO L480 AbstractCegarLoop]: Abstraction has has 492 places, 497 transitions, 14282 flow [2021-03-25 12:25:17,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:17,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:17,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:17,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2021-03-25 12:25:17,751 INFO L428 AbstractCegarLoop]: === Iteration 539 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:17,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1786599407, now seen corresponding path program 1 times [2021-03-25 12:25:17,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:17,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677344811] [2021-03-25 12:25:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:17,760 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:17,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:17,766 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:17,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:17,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:17,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:17,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:17,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:17,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:17,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:17,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:17,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:17,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:17,836 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:17,842 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:17,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:17,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677344811] [2021-03-25 12:25:17,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:17,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 12:25:17,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330719618] [2021-03-25 12:25:17,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 12:25:17,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:17,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 12:25:17,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-03-25 12:25:17,845 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:17,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 497 transitions, 14282 flow. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:17,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:17,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:17,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:18,343 INFO L129 PetriNetUnfolder]: 343/957 cut-off events. [2021-03-25 12:25:18,343 INFO L130 PetriNetUnfolder]: For 109896/109952 co-relation queries the response was YES. [2021-03-25 12:25:18,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17015 conditions, 957 events. 343/957 cut-off events. For 109896/109952 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7211 event pairs, 44 based on Foata normal form. 44/1001 useless extension candidates. Maximal degree in co-relation 16780. Up to 730 conditions per place. [2021-03-25 12:25:18,361 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 427 selfloop transitions, 62 changer transitions 2/499 dead transitions. [2021-03-25 12:25:18,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 499 transitions, 15292 flow [2021-03-25 12:25:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 12:25:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 12:25:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 257 transitions. [2021-03-25 12:25:18,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2262323943661972 [2021-03-25 12:25:18,362 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 257 transitions. [2021-03-25 12:25:18,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 257 transitions. [2021-03-25 12:25:18,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:18,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 257 transitions. [2021-03-25 12:25:18,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.125) internal successors, (257), 8 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:18,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:18,363 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 142.0) internal successors, (1278), 9 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:18,363 INFO L185 Difference]: Start difference. First operand has 492 places, 497 transitions, 14282 flow. Second operand 8 states and 257 transitions. [2021-03-25 12:25:18,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 499 transitions, 15292 flow [2021-03-25 12:25:18,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 499 transitions, 15076 flow, removed 2 selfloop flow, removed 16 redundant places. [2021-03-25 12:25:18,947 INFO L241 Difference]: Finished difference. Result has 484 places, 495 transitions, 14176 flow [2021-03-25 12:25:18,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=14066, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14176, PETRI_PLACES=484, PETRI_TRANSITIONS=495} [2021-03-25 12:25:18,948 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 437 predicate places. [2021-03-25 12:25:18,948 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:18,948 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 484 places, 495 transitions, 14176 flow [2021-03-25 12:25:18,948 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 484 places, 495 transitions, 14176 flow [2021-03-25 12:25:18,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 482 places, 495 transitions, 14176 flow [2021-03-25 12:25:19,129 INFO L129 PetriNetUnfolder]: 326/944 cut-off events. [2021-03-25 12:25:19,129 INFO L130 PetriNetUnfolder]: For 104196/104202 co-relation queries the response was YES. [2021-03-25 12:25:19,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16073 conditions, 944 events. 326/944 cut-off events. For 104196/104202 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 7322 event pairs, 27 based on Foata normal form. 4/948 useless extension candidates. Maximal degree in co-relation 15826. Up to 288 conditions per place. [2021-03-25 12:25:19,151 INFO L142 LiptonReduction]: Number of co-enabled transitions 834 [2021-03-25 12:25:19,179 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:19,179 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:19,179 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 12:25:19,179 INFO L480 AbstractCegarLoop]: Abstraction has has 482 places, 495 transitions, 14176 flow [2021-03-25 12:25:19,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:19,179 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:19,179 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:19,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2021-03-25 12:25:19,179 INFO L428 AbstractCegarLoop]: === Iteration 540 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:19,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:19,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1006254327, now seen corresponding path program 2 times [2021-03-25 12:25:19,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:19,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496697542] [2021-03-25 12:25:19,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:19,185 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:19,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:19,190 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:19,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:19,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:19,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:19,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:19,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:19,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:19,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:19,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:19,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:19,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:19,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:19,244 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:19,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:19,258 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:19,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:19,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496697542] [2021-03-25 12:25:19,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:19,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:19,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713609380] [2021-03-25 12:25:19,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:19,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:19,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:19,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:19,262 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:19,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 495 transitions, 14176 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:19,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:19,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:19,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:19,812 INFO L129 PetriNetUnfolder]: 343/957 cut-off events. [2021-03-25 12:25:19,812 INFO L130 PetriNetUnfolder]: For 109576/109617 co-relation queries the response was YES. [2021-03-25 12:25:19,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16963 conditions, 957 events. 343/957 cut-off events. For 109576/109617 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7222 event pairs, 39 based on Foata normal form. 36/993 useless extension candidates. Maximal degree in co-relation 16724. Up to 708 conditions per place. [2021-03-25 12:25:19,829 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 404 selfloop transitions, 80 changer transitions 5/497 dead transitions. [2021-03-25 12:25:19,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 497 transitions, 15182 flow [2021-03-25 12:25:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 12:25:19,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 12:25:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 294 transitions. [2021-03-25 12:25:19,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2300469483568075 [2021-03-25 12:25:19,830 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 294 transitions. [2021-03-25 12:25:19,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 294 transitions. [2021-03-25 12:25:19,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:19,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 294 transitions. [2021-03-25 12:25:19,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 32.666666666666664) internal successors, (294), 9 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:19,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:19,831 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 142.0) internal successors, (1420), 10 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:19,831 INFO L185 Difference]: Start difference. First operand has 482 places, 495 transitions, 14176 flow. Second operand 9 states and 294 transitions. [2021-03-25 12:25:19,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 497 transitions, 15182 flow [2021-03-25 12:25:20,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 481 places, 497 transitions, 15036 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-25 12:25:20,411 INFO L241 Difference]: Finished difference. Result has 482 places, 490 transitions, 14129 flow [2021-03-25 12:25:20,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=14030, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14129, PETRI_PLACES=482, PETRI_TRANSITIONS=490} [2021-03-25 12:25:20,412 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 435 predicate places. [2021-03-25 12:25:20,412 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:20,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 482 places, 490 transitions, 14129 flow [2021-03-25 12:25:20,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 482 places, 490 transitions, 14129 flow [2021-03-25 12:25:20,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 480 places, 490 transitions, 14129 flow [2021-03-25 12:25:20,592 INFO L129 PetriNetUnfolder]: 329/937 cut-off events. [2021-03-25 12:25:20,592 INFO L130 PetriNetUnfolder]: For 105006/105024 co-relation queries the response was YES. [2021-03-25 12:25:20,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16097 conditions, 937 events. 329/937 cut-off events. For 105006/105024 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 7244 event pairs, 37 based on Foata normal form. 10/947 useless extension candidates. Maximal degree in co-relation 15853. Up to 287 conditions per place. [2021-03-25 12:25:20,613 INFO L142 LiptonReduction]: Number of co-enabled transitions 834 [2021-03-25 12:25:20,641 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:20,641 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:20,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 229 [2021-03-25 12:25:20,641 INFO L480 AbstractCegarLoop]: Abstraction has has 480 places, 490 transitions, 14129 flow [2021-03-25 12:25:20,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:20,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:20,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:20,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-03-25 12:25:20,641 INFO L428 AbstractCegarLoop]: === Iteration 541 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:20,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:20,641 INFO L82 PathProgramCache]: Analyzing trace with hash 629486011, now seen corresponding path program 30 times [2021-03-25 12:25:20,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:20,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024465490] [2021-03-25 12:25:20,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:20,647 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:20,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:20,652 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:20,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:20,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:20,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:20,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:20,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:20,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:20,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:20,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:20,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:20,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:20,711 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:20,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:20,726 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:20,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:20,742 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:20,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:20,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024465490] [2021-03-25 12:25:20,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:20,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:20,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272922849] [2021-03-25 12:25:20,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:20,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:20,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:20,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:20,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:20,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 490 transitions, 14129 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:20,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:20,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:20,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:21,345 INFO L129 PetriNetUnfolder]: 341/957 cut-off events. [2021-03-25 12:25:21,345 INFO L130 PetriNetUnfolder]: For 108771/108827 co-relation queries the response was YES. [2021-03-25 12:25:21,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16935 conditions, 957 events. 341/957 cut-off events. For 108771/108827 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 7236 event pairs, 30 based on Foata normal form. 44/1001 useless extension candidates. Maximal degree in co-relation 16697. Up to 703 conditions per place. [2021-03-25 12:25:21,361 INFO L132 encePairwiseOnDemand]: 126/142 looper letters, 402 selfloop transitions, 80 changer transitions 4/494 dead transitions. [2021-03-25 12:25:21,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 494 transitions, 15151 flow [2021-03-25 12:25:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 422 transitions. [2021-03-25 12:25:21,362 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21227364185110664 [2021-03-25 12:25:21,363 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 422 transitions. [2021-03-25 12:25:21,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 422 transitions. [2021-03-25 12:25:21,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:21,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 422 transitions. [2021-03-25 12:25:21,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.142857142857142) internal successors, (422), 14 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:21,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:21,364 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:21,364 INFO L185 Difference]: Start difference. First operand has 480 places, 490 transitions, 14129 flow. Second operand 14 states and 422 transitions. [2021-03-25 12:25:21,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 494 transitions, 15151 flow [2021-03-25 12:25:21,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 494 transitions, 14924 flow, removed 10 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:21,916 INFO L241 Difference]: Finished difference. Result has 480 places, 486 transitions, 13957 flow [2021-03-25 12:25:21,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=13904, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13957, PETRI_PLACES=480, PETRI_TRANSITIONS=486} [2021-03-25 12:25:21,916 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 433 predicate places. [2021-03-25 12:25:21,917 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:21,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 486 transitions, 13957 flow [2021-03-25 12:25:21,917 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 486 transitions, 13957 flow [2021-03-25 12:25:21,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 486 transitions, 13957 flow [2021-03-25 12:25:22,097 INFO L129 PetriNetUnfolder]: 324/938 cut-off events. [2021-03-25 12:25:22,097 INFO L130 PetriNetUnfolder]: For 102936/102947 co-relation queries the response was YES. [2021-03-25 12:25:22,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15940 conditions, 938 events. 324/938 cut-off events. For 102936/102947 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 7269 event pairs, 34 based on Foata normal form. 7/945 useless extension candidates. Maximal degree in co-relation 15715. Up to 284 conditions per place. [2021-03-25 12:25:22,120 INFO L142 LiptonReduction]: Number of co-enabled transitions 830 [2021-03-25 12:25:22,148 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:22,148 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:22,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 12:25:22,148 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 486 transitions, 13957 flow [2021-03-25 12:25:22,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:22,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:22,148 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:22,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-03-25 12:25:22,149 INFO L428 AbstractCegarLoop]: === Iteration 542 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:22,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1739326425, now seen corresponding path program 31 times [2021-03-25 12:25:22,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:22,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164958608] [2021-03-25 12:25:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:22,154 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:22,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:22,160 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:22,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:22,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:22,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:22,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:22,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:22,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:22,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:22,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:22,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:22,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:22,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:22,221 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:22,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:22,236 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:22,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:22,252 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:22,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:22,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:22,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164958608] [2021-03-25 12:25:22,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:22,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:22,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600296736] [2021-03-25 12:25:22,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:22,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:22,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:22,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:22,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:22,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 486 transitions, 13957 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:22,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:22,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:22,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:22,862 INFO L129 PetriNetUnfolder]: 340/948 cut-off events. [2021-03-25 12:25:22,862 INFO L130 PetriNetUnfolder]: For 108573/108635 co-relation queries the response was YES. [2021-03-25 12:25:22,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16812 conditions, 948 events. 340/948 cut-off events. For 108573/108635 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 7154 event pairs, 32 based on Foata normal form. 50/998 useless extension candidates. Maximal degree in co-relation 16587. Up to 699 conditions per place. [2021-03-25 12:25:22,877 INFO L132 encePairwiseOnDemand]: 126/142 looper letters, 394 selfloop transitions, 83 changer transitions 4/489 dead transitions. [2021-03-25 12:25:22,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 489 transitions, 14961 flow [2021-03-25 12:25:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 372 transitions. [2021-03-25 12:25:22,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21830985915492956 [2021-03-25 12:25:22,879 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 372 transitions. [2021-03-25 12:25:22,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 372 transitions. [2021-03-25 12:25:22,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:22,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 372 transitions. [2021-03-25 12:25:22,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:22,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:22,880 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:22,880 INFO L185 Difference]: Start difference. First operand has 477 places, 486 transitions, 13957 flow. Second operand 12 states and 372 transitions. [2021-03-25 12:25:22,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 489 transitions, 14961 flow [2021-03-25 12:25:23,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 489 transitions, 14742 flow, removed 3 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:23,387 INFO L241 Difference]: Finished difference. Result has 475 places, 482 transitions, 13885 flow [2021-03-25 12:25:23,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=13738, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13885, PETRI_PLACES=475, PETRI_TRANSITIONS=482} [2021-03-25 12:25:23,387 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 428 predicate places. [2021-03-25 12:25:23,387 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:23,387 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 475 places, 482 transitions, 13885 flow [2021-03-25 12:25:23,387 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 475 places, 482 transitions, 13885 flow [2021-03-25 12:25:23,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 471 places, 482 transitions, 13885 flow [2021-03-25 12:25:23,573 INFO L129 PetriNetUnfolder]: 325/923 cut-off events. [2021-03-25 12:25:23,573 INFO L130 PetriNetUnfolder]: For 106118/106183 co-relation queries the response was YES. [2021-03-25 12:25:23,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15796 conditions, 923 events. 325/923 cut-off events. For 106118/106183 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7112 event pairs, 34 based on Foata normal form. 16/939 useless extension candidates. Maximal degree in co-relation 15557. Up to 282 conditions per place. [2021-03-25 12:25:23,593 INFO L142 LiptonReduction]: Number of co-enabled transitions 830 [2021-03-25 12:25:23,618 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:23,618 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:23,618 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 12:25:23,618 INFO L480 AbstractCegarLoop]: Abstraction has has 471 places, 482 transitions, 13885 flow [2021-03-25 12:25:23,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:23,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:23,618 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:23,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2021-03-25 12:25:23,619 INFO L428 AbstractCegarLoop]: === Iteration 543 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:23,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1037739525, now seen corresponding path program 32 times [2021-03-25 12:25:23,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:23,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963024903] [2021-03-25 12:25:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:23,626 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:23,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:23,640 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:23,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:23,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:23,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:23,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:23,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:23,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:23,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:23,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:23,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:23,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:23,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:23,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:23,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:23,730 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:23,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:23,751 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:23,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:23,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963024903] [2021-03-25 12:25:23,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:23,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:23,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408516005] [2021-03-25 12:25:23,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:23,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:23,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:23,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:23,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:23,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 482 transitions, 13885 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:23,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:23,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:23,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:24,367 INFO L129 PetriNetUnfolder]: 339/940 cut-off events. [2021-03-25 12:25:24,367 INFO L130 PetriNetUnfolder]: For 109516/109691 co-relation queries the response was YES. [2021-03-25 12:25:24,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16788 conditions, 940 events. 339/940 cut-off events. For 109516/109691 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 7073 event pairs, 32 based on Foata normal form. 57/997 useless extension candidates. Maximal degree in co-relation 16555. Up to 681 conditions per place. [2021-03-25 12:25:24,382 INFO L132 encePairwiseOnDemand]: 126/142 looper letters, 387 selfloop transitions, 88 changer transitions 5/488 dead transitions. [2021-03-25 12:25:24,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 488 transitions, 14972 flow [2021-03-25 12:25:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2021-03-25 12:25:24,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21895006402048656 [2021-03-25 12:25:24,384 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 342 transitions. [2021-03-25 12:25:24,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 342 transitions. [2021-03-25 12:25:24,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:24,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 342 transitions. [2021-03-25 12:25:24,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:24,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:24,385 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:24,385 INFO L185 Difference]: Start difference. First operand has 471 places, 482 transitions, 13885 flow. Second operand 11 states and 342 transitions. [2021-03-25 12:25:24,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 488 transitions, 14972 flow [2021-03-25 12:25:24,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 488 transitions, 14754 flow, removed 2 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:24,944 INFO L241 Difference]: Finished difference. Result has 468 places, 478 transitions, 13732 flow [2021-03-25 12:25:24,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=13667, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13732, PETRI_PLACES=468, PETRI_TRANSITIONS=478} [2021-03-25 12:25:24,945 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 421 predicate places. [2021-03-25 12:25:24,945 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:24,945 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 468 places, 478 transitions, 13732 flow [2021-03-25 12:25:24,945 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 468 places, 478 transitions, 13732 flow [2021-03-25 12:25:24,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 464 places, 478 transitions, 13732 flow [2021-03-25 12:25:25,127 INFO L129 PetriNetUnfolder]: 322/916 cut-off events. [2021-03-25 12:25:25,128 INFO L130 PetriNetUnfolder]: For 100607/100620 co-relation queries the response was YES. [2021-03-25 12:25:25,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15691 conditions, 916 events. 322/916 cut-off events. For 100607/100620 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6977 event pairs, 34 based on Foata normal form. 7/922 useless extension candidates. Maximal degree in co-relation 15473. Up to 282 conditions per place. [2021-03-25 12:25:25,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 826 [2021-03-25 12:25:25,177 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:25,177 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:25,177 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 232 [2021-03-25 12:25:25,177 INFO L480 AbstractCegarLoop]: Abstraction has has 464 places, 478 transitions, 13732 flow [2021-03-25 12:25:25,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:25,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:25,177 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:25,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2021-03-25 12:25:25,177 INFO L428 AbstractCegarLoop]: === Iteration 544 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash -601775543, now seen corresponding path program 33 times [2021-03-25 12:25:25,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:25,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983213808] [2021-03-25 12:25:25,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:25,186 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:25,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:25,192 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:25,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:25,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:25,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:25,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:25,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:25,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:25,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:25,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:25,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:25,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:25,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:25,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:25,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:25,267 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:25,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:25,283 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:25,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:25,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983213808] [2021-03-25 12:25:25,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:25,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:25,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206907252] [2021-03-25 12:25:25,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:25,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:25,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:25,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:25,286 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:25,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 478 transitions, 13732 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:25,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:25,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:25,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:25,883 INFO L129 PetriNetUnfolder]: 339/925 cut-off events. [2021-03-25 12:25:25,884 INFO L130 PetriNetUnfolder]: For 107538/107600 co-relation queries the response was YES. [2021-03-25 12:25:25,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16648 conditions, 925 events. 339/925 cut-off events. For 107538/107600 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6833 event pairs, 44 based on Foata normal form. 50/975 useless extension candidates. Maximal degree in co-relation 16431. Up to 704 conditions per place. [2021-03-25 12:25:25,899 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 401 selfloop transitions, 67 changer transitions 4/480 dead transitions. [2021-03-25 12:25:25,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 480 transitions, 14704 flow [2021-03-25 12:25:25,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:25,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2021-03-25 12:25:25,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2136150234741784 [2021-03-25 12:25:25,901 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 364 transitions. [2021-03-25 12:25:25,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 364 transitions. [2021-03-25 12:25:25,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:25,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 364 transitions. [2021-03-25 12:25:25,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:25,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:25,902 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:25,902 INFO L185 Difference]: Start difference. First operand has 464 places, 478 transitions, 13732 flow. Second operand 12 states and 364 transitions. [2021-03-25 12:25:25,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 480 transitions, 14704 flow [2021-03-25 12:25:26,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 480 transitions, 14521 flow, removed 1 selfloop flow, removed 9 redundant places. [2021-03-25 12:25:26,438 INFO L241 Difference]: Finished difference. Result has 467 places, 474 transitions, 13659 flow [2021-03-25 12:25:26,438 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=13549, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13659, PETRI_PLACES=467, PETRI_TRANSITIONS=474} [2021-03-25 12:25:26,438 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 420 predicate places. [2021-03-25 12:25:26,438 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:26,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 474 transitions, 13659 flow [2021-03-25 12:25:26,438 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 474 transitions, 13659 flow [2021-03-25 12:25:26,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 458 places, 474 transitions, 13659 flow [2021-03-25 12:25:26,609 INFO L129 PetriNetUnfolder]: 327/916 cut-off events. [2021-03-25 12:25:26,609 INFO L130 PetriNetUnfolder]: For 106906/106958 co-relation queries the response was YES. [2021-03-25 12:25:26,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15835 conditions, 916 events. 327/916 cut-off events. For 106906/106958 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6994 event pairs, 55 based on Foata normal form. 9/920 useless extension candidates. Maximal degree in co-relation 15601. Up to 286 conditions per place. [2021-03-25 12:25:26,630 INFO L142 LiptonReduction]: Number of co-enabled transitions 826 [2021-03-25 12:25:26,656 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:26,656 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:26,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 218 [2021-03-25 12:25:26,657 INFO L480 AbstractCegarLoop]: Abstraction has has 458 places, 474 transitions, 13659 flow [2021-03-25 12:25:26,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:26,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:26,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:26,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2021-03-25 12:25:26,657 INFO L428 AbstractCegarLoop]: === Iteration 545 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:26,657 INFO L82 PathProgramCache]: Analyzing trace with hash 425772745, now seen corresponding path program 34 times [2021-03-25 12:25:26,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:26,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141717125] [2021-03-25 12:25:26,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:26,662 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:26,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:26,668 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:26,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:26,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:26,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:26,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:26,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:26,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:26,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:26,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:26,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:26,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:26,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:26,740 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:26,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:26,758 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:26,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:26,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141717125] [2021-03-25 12:25:26,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:26,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:26,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752115155] [2021-03-25 12:25:26,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:26,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:26,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:26,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:26,762 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:26,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 474 transitions, 13659 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:26,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:26,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:26,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:27,280 INFO L129 PetriNetUnfolder]: 337/930 cut-off events. [2021-03-25 12:25:27,280 INFO L130 PetriNetUnfolder]: For 107253/107309 co-relation queries the response was YES. [2021-03-25 12:25:27,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16606 conditions, 930 events. 337/930 cut-off events. For 107253/107309 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6926 event pairs, 40 based on Foata normal form. 44/974 useless extension candidates. Maximal degree in co-relation 16374. Up to 704 conditions per place. [2021-03-25 12:25:27,295 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 408 selfloop transitions, 58 changer transitions 3/477 dead transitions. [2021-03-25 12:25:27,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 477 transitions, 14633 flow [2021-03-25 12:25:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:27,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 332 transitions. [2021-03-25 12:25:27,297 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21254801536491677 [2021-03-25 12:25:27,297 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 332 transitions. [2021-03-25 12:25:27,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 332 transitions. [2021-03-25 12:25:27,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:27,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 332 transitions. [2021-03-25 12:25:27,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.181818181818183) internal successors, (332), 11 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:27,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:27,298 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:27,298 INFO L185 Difference]: Start difference. First operand has 458 places, 474 transitions, 13659 flow. Second operand 11 states and 332 transitions. [2021-03-25 12:25:27,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 477 transitions, 14633 flow [2021-03-25 12:25:27,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 477 transitions, 14474 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:27,779 INFO L241 Difference]: Finished difference. Result has 459 places, 471 transitions, 13540 flow [2021-03-25 12:25:27,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=13502, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13540, PETRI_PLACES=459, PETRI_TRANSITIONS=471} [2021-03-25 12:25:27,780 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 412 predicate places. [2021-03-25 12:25:27,780 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:27,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 471 transitions, 13540 flow [2021-03-25 12:25:27,780 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 471 transitions, 13540 flow [2021-03-25 12:25:27,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 458 places, 471 transitions, 13540 flow [2021-03-25 12:25:27,948 INFO L129 PetriNetUnfolder]: 319/908 cut-off events. [2021-03-25 12:25:27,948 INFO L130 PetriNetUnfolder]: For 102171/102178 co-relation queries the response was YES. [2021-03-25 12:25:27,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15634 conditions, 908 events. 319/908 cut-off events. For 102171/102178 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6911 event pairs, 37 based on Foata normal form. 5/913 useless extension candidates. Maximal degree in co-relation 15417. Up to 280 conditions per place. [2021-03-25 12:25:27,969 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:25:27,994 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:27,994 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:27,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-03-25 12:25:27,994 INFO L480 AbstractCegarLoop]: Abstraction has has 458 places, 471 transitions, 13540 flow [2021-03-25 12:25:27,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:27,994 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:27,994 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:27,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2021-03-25 12:25:27,994 INFO L428 AbstractCegarLoop]: === Iteration 546 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:27,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:27,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1257486847, now seen corresponding path program 35 times [2021-03-25 12:25:27,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:27,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047480138] [2021-03-25 12:25:27,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:28,000 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:28,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:28,005 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:28,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:28,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:28,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:28,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:28,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:28,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:28,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 12:25:28,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:28,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:28,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:28,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:28,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:28,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:28,078 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:28,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:28,094 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:28,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:28,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047480138] [2021-03-25 12:25:28,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:28,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:28,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432069649] [2021-03-25 12:25:28,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:28,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:28,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:28,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:28,098 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:28,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 471 transitions, 13540 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:28,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:28,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:28,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:28,621 INFO L129 PetriNetUnfolder]: 337/922 cut-off events. [2021-03-25 12:25:28,621 INFO L130 PetriNetUnfolder]: For 105583/105639 co-relation queries the response was YES. [2021-03-25 12:25:28,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16506 conditions, 922 events. 337/922 cut-off events. For 105583/105639 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6854 event pairs, 30 based on Foata normal form. 44/966 useless extension candidates. Maximal degree in co-relation 16290. Up to 691 conditions per place. [2021-03-25 12:25:28,636 INFO L132 encePairwiseOnDemand]: 126/142 looper letters, 394 selfloop transitions, 65 changer transitions 7/474 dead transitions. [2021-03-25 12:25:28,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 474 transitions, 14514 flow [2021-03-25 12:25:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2021-03-25 12:25:28,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21619718309859154 [2021-03-25 12:25:28,638 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 307 transitions. [2021-03-25 12:25:28,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 307 transitions. [2021-03-25 12:25:28,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:28,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 307 transitions. [2021-03-25 12:25:28,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.7) internal successors, (307), 10 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:28,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:28,639 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:28,639 INFO L185 Difference]: Start difference. First operand has 458 places, 471 transitions, 13540 flow. Second operand 10 states and 307 transitions. [2021-03-25 12:25:28,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 474 transitions, 14514 flow [2021-03-25 12:25:29,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 474 transitions, 14274 flow, removed 4 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:29,167 INFO L241 Difference]: Finished difference. Result has 454 places, 464 transitions, 13289 flow [2021-03-25 12:25:29,167 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=13300, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13289, PETRI_PLACES=454, PETRI_TRANSITIONS=464} [2021-03-25 12:25:29,167 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 407 predicate places. [2021-03-25 12:25:29,167 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:29,167 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 454 places, 464 transitions, 13289 flow [2021-03-25 12:25:29,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 454 places, 464 transitions, 13289 flow [2021-03-25 12:25:29,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 464 transitions, 13289 flow [2021-03-25 12:25:29,340 INFO L129 PetriNetUnfolder]: 324/894 cut-off events. [2021-03-25 12:25:29,341 INFO L130 PetriNetUnfolder]: For 102686/102759 co-relation queries the response was YES. [2021-03-25 12:25:29,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15345 conditions, 894 events. 324/894 cut-off events. For 102686/102759 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6756 event pairs, 33 based on Foata normal form. 7/892 useless extension candidates. Maximal degree in co-relation 15115. Up to 287 conditions per place. [2021-03-25 12:25:29,360 INFO L142 LiptonReduction]: Number of co-enabled transitions 818 [2021-03-25 12:25:29,386 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:29,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:29,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 219 [2021-03-25 12:25:29,386 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 464 transitions, 13289 flow [2021-03-25 12:25:29,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:29,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:29,386 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:29,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2021-03-25 12:25:29,386 INFO L428 AbstractCegarLoop]: === Iteration 547 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:29,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2101515299, now seen corresponding path program 197 times [2021-03-25 12:25:29,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:29,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339106433] [2021-03-25 12:25:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:29,392 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:29,397 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:29,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:29,405 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:25:29,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:25:29,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:29,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:29,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:29,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:29,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:29,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:29,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:29,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:29,443 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:29,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:29,458 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:29,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:29,474 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:29,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:29,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:29,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339106433] [2021-03-25 12:25:29,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:29,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:29,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217569808] [2021-03-25 12:25:29,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:29,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:29,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:29,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:29,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:29,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 464 transitions, 13289 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:29,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:29,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:29,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:29,946 INFO L129 PetriNetUnfolder]: 336/912 cut-off events. [2021-03-25 12:25:29,946 INFO L130 PetriNetUnfolder]: For 101163/101219 co-relation queries the response was YES. [2021-03-25 12:25:29,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16165 conditions, 912 events. 336/912 cut-off events. For 101163/101219 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6724 event pairs, 48 based on Foata normal form. 27/938 useless extension candidates. Maximal degree in co-relation 15937. Up to 726 conditions per place. [2021-03-25 12:25:29,961 INFO L132 encePairwiseOnDemand]: 129/142 looper letters, 427 selfloop transitions, 23 changer transitions 7/465 dead transitions. [2021-03-25 12:25:29,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 465 transitions, 14217 flow [2021-03-25 12:25:29,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:29,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 296 transitions. [2021-03-25 12:25:29,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2084507042253521 [2021-03-25 12:25:29,962 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 296 transitions. [2021-03-25 12:25:29,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 296 transitions. [2021-03-25 12:25:29,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:29,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 296 transitions. [2021-03-25 12:25:29,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.6) internal successors, (296), 10 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:29,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:29,963 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:29,963 INFO L185 Difference]: Start difference. First operand has 446 places, 464 transitions, 13289 flow. Second operand 10 states and 296 transitions. [2021-03-25 12:25:29,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 465 transitions, 14217 flow [2021-03-25 12:25:30,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 465 transitions, 13701 flow, removed 31 selfloop flow, removed 26 redundant places. [2021-03-25 12:25:30,414 INFO L241 Difference]: Finished difference. Result has 430 places, 457 transitions, 12689 flow [2021-03-25 12:25:30,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=12773, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12689, PETRI_PLACES=430, PETRI_TRANSITIONS=457} [2021-03-25 12:25:30,414 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 383 predicate places. [2021-03-25 12:25:30,414 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:30,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 430 places, 457 transitions, 12689 flow [2021-03-25 12:25:30,414 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 430 places, 457 transitions, 12689 flow [2021-03-25 12:25:30,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 422 places, 457 transitions, 12689 flow [2021-03-25 12:25:30,564 INFO L129 PetriNetUnfolder]: 322/888 cut-off events. [2021-03-25 12:25:30,564 INFO L130 PetriNetUnfolder]: For 82601/82617 co-relation queries the response was YES. [2021-03-25 12:25:30,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14420 conditions, 888 events. 322/888 cut-off events. For 82601/82617 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6674 event pairs, 32 based on Foata normal form. 7/894 useless extension candidates. Maximal degree in co-relation 14226. Up to 280 conditions per place. [2021-03-25 12:25:30,581 INFO L142 LiptonReduction]: Number of co-enabled transitions 814 [2021-03-25 12:25:30,604 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:30,605 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:30,605 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 12:25:30,605 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 457 transitions, 12689 flow [2021-03-25 12:25:30,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:30,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:30,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:30,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2021-03-25 12:25:30,605 INFO L428 AbstractCegarLoop]: === Iteration 548 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:30,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:30,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1571216395, now seen corresponding path program 198 times [2021-03-25 12:25:30,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:30,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411477071] [2021-03-25 12:25:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:30,612 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:30,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:30,618 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:30,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:30,627 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-25 12:25:30,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 12:25:30,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:30,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:30,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:30,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:30,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:30,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:30,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:30,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:30,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:30,690 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:30,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:30,706 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:30,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:30,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411477071] [2021-03-25 12:25:30,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:30,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:30,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250619951] [2021-03-25 12:25:30,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:30,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:30,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:30,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:30,709 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:30,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 457 transitions, 12689 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:30,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:30,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:30,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:31,143 INFO L129 PetriNetUnfolder]: 335/905 cut-off events. [2021-03-25 12:25:31,143 INFO L130 PetriNetUnfolder]: For 85204/85260 co-relation queries the response was YES. [2021-03-25 12:25:31,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15281 conditions, 905 events. 335/905 cut-off events. For 85204/85260 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6621 event pairs, 46 based on Foata normal form. 26/931 useless extension candidates. Maximal degree in co-relation 15084. Up to 717 conditions per place. [2021-03-25 12:25:31,158 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 425 selfloop transitions, 18 changer transitions 8/459 dead transitions. [2021-03-25 12:25:31,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 459 transitions, 13619 flow [2021-03-25 12:25:31,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:31,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2021-03-25 12:25:31,159 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2091549295774648 [2021-03-25 12:25:31,159 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 297 transitions. [2021-03-25 12:25:31,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 297 transitions. [2021-03-25 12:25:31,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:31,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 297 transitions. [2021-03-25 12:25:31,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 29.7) internal successors, (297), 10 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:31,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:31,160 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:31,160 INFO L185 Difference]: Start difference. First operand has 422 places, 457 transitions, 12689 flow. Second operand 10 states and 297 transitions. [2021-03-25 12:25:31,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 459 transitions, 13619 flow [2021-03-25 12:25:31,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 459 transitions, 13339 flow, removed 50 selfloop flow, removed 12 redundant places. [2021-03-25 12:25:31,513 INFO L241 Difference]: Finished difference. Result has 420 places, 449 transitions, 12254 flow [2021-03-25 12:25:31,513 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=12409, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12254, PETRI_PLACES=420, PETRI_TRANSITIONS=449} [2021-03-25 12:25:31,513 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 373 predicate places. [2021-03-25 12:25:31,513 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:31,513 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 420 places, 449 transitions, 12254 flow [2021-03-25 12:25:31,513 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 420 places, 449 transitions, 12254 flow [2021-03-25 12:25:31,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 449 transitions, 12254 flow [2021-03-25 12:25:31,654 INFO L129 PetriNetUnfolder]: 319/873 cut-off events. [2021-03-25 12:25:31,654 INFO L130 PetriNetUnfolder]: For 79672/79682 co-relation queries the response was YES. [2021-03-25 12:25:31,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14063 conditions, 873 events. 319/873 cut-off events. For 79672/79682 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6457 event pairs, 42 based on Foata normal form. 6/879 useless extension candidates. Maximal degree in co-relation 13873. Up to 279 conditions per place. [2021-03-25 12:25:31,671 INFO L142 LiptonReduction]: Number of co-enabled transitions 806 [2021-03-25 12:25:31,693 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:31,693 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:31,693 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-25 12:25:31,694 INFO L480 AbstractCegarLoop]: Abstraction has has 414 places, 449 transitions, 12254 flow [2021-03-25 12:25:31,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:31,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:31,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:31,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2021-03-25 12:25:31,694 INFO L428 AbstractCegarLoop]: === Iteration 549 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:31,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:31,694 INFO L82 PathProgramCache]: Analyzing trace with hash 693155405, now seen corresponding path program 199 times [2021-03-25 12:25:31,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:31,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090006997] [2021-03-25 12:25:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:31,699 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:31,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:31,704 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:31,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:31,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:31,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:31,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:31,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:31,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:31,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:31,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:31,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:31,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:31,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:31,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:31,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:31,776 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:31,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:31,791 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:31,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:31,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090006997] [2021-03-25 12:25:31,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:31,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:31,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893673882] [2021-03-25 12:25:31,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:31,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:31,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:31,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:31,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 449 transitions, 12254 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:31,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:31,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:31,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:32,246 INFO L129 PetriNetUnfolder]: 334/894 cut-off events. [2021-03-25 12:25:32,246 INFO L130 PetriNetUnfolder]: For 83217/83271 co-relation queries the response was YES. [2021-03-25 12:25:32,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14910 conditions, 894 events. 334/894 cut-off events. For 83217/83271 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6510 event pairs, 49 based on Foata normal form. 16/909 useless extension candidates. Maximal degree in co-relation 14717. Up to 715 conditions per place. [2021-03-25 12:25:32,260 INFO L132 encePairwiseOnDemand]: 131/142 looper letters, 419 selfloop transitions, 12 changer transitions 10/449 dead transitions. [2021-03-25 12:25:32,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 449 transitions, 13136 flow [2021-03-25 12:25:32,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 347 transitions. [2021-03-25 12:25:32,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20363849765258216 [2021-03-25 12:25:32,262 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 347 transitions. [2021-03-25 12:25:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 347 transitions. [2021-03-25 12:25:32,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:32,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 347 transitions. [2021-03-25 12:25:32,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 28.916666666666668) internal successors, (347), 12 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:32,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:32,263 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:32,263 INFO L185 Difference]: Start difference. First operand has 414 places, 449 transitions, 12254 flow. Second operand 12 states and 347 transitions. [2021-03-25 12:25:32,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 449 transitions, 13136 flow [2021-03-25 12:25:32,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 449 transitions, 12879 flow, removed 43 selfloop flow, removed 20 redundant places. [2021-03-25 12:25:32,639 INFO L241 Difference]: Finished difference. Result has 406 places, 439 transitions, 11836 flow [2021-03-25 12:25:32,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=11997, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11836, PETRI_PLACES=406, PETRI_TRANSITIONS=439} [2021-03-25 12:25:32,639 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 359 predicate places. [2021-03-25 12:25:32,639 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:32,639 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 439 transitions, 11836 flow [2021-03-25 12:25:32,639 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 439 transitions, 11836 flow [2021-03-25 12:25:32,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 394 places, 439 transitions, 11836 flow [2021-03-25 12:25:32,775 INFO L129 PetriNetUnfolder]: 314/842 cut-off events. [2021-03-25 12:25:32,775 INFO L130 PetriNetUnfolder]: For 77905/77951 co-relation queries the response was YES. [2021-03-25 12:25:32,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13623 conditions, 842 events. 314/842 cut-off events. For 77905/77951 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6158 event pairs, 35 based on Foata normal form. 6/847 useless extension candidates. Maximal degree in co-relation 13441. Up to 279 conditions per place. [2021-03-25 12:25:32,791 INFO L142 LiptonReduction]: Number of co-enabled transitions 796 [2021-03-25 12:25:32,814 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:32,814 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:32,814 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 175 [2021-03-25 12:25:32,814 INFO L480 AbstractCegarLoop]: Abstraction has has 394 places, 439 transitions, 11836 flow [2021-03-25 12:25:32,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:32,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:32,814 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:32,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2021-03-25 12:25:32,814 INFO L428 AbstractCegarLoop]: === Iteration 550 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:32,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1440449219, now seen corresponding path program 200 times [2021-03-25 12:25:32,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:32,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130201225] [2021-03-25 12:25:32,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:32,820 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:32,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:32,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:32,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:32,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:32,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:32,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:32,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:32,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:32,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:32,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:32,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:32,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:32,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:32,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:32,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:32,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:32,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:32,927 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:32,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:32,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130201225] [2021-03-25 12:25:32,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:32,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:32,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063715387] [2021-03-25 12:25:32,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:32,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:32,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:32,930 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:32,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 439 transitions, 11836 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:32,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:32,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:32,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:33,475 INFO L129 PetriNetUnfolder]: 332/880 cut-off events. [2021-03-25 12:25:33,476 INFO L130 PetriNetUnfolder]: For 79806/79845 co-relation queries the response was YES. [2021-03-25 12:25:33,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14558 conditions, 880 events. 332/880 cut-off events. For 79806/79845 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6323 event pairs, 46 based on Foata normal form. 25/905 useless extension candidates. Maximal degree in co-relation 14373. Up to 693 conditions per place. [2021-03-25 12:25:33,488 INFO L132 encePairwiseOnDemand]: 127/142 looper letters, 393 selfloop transitions, 37 changer transitions 3/441 dead transitions. [2021-03-25 12:25:33,488 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 441 transitions, 12730 flow [2021-03-25 12:25:33,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:33,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 357 transitions. [2021-03-25 12:25:33,489 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20950704225352113 [2021-03-25 12:25:33,489 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 357 transitions. [2021-03-25 12:25:33,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 357 transitions. [2021-03-25 12:25:33,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:33,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 357 transitions. [2021-03-25 12:25:33,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.75) internal successors, (357), 12 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:33,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:33,490 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:33,490 INFO L185 Difference]: Start difference. First operand has 394 places, 439 transitions, 11836 flow. Second operand 12 states and 357 transitions. [2021-03-25 12:25:33,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 441 transitions, 12730 flow [2021-03-25 12:25:33,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 441 transitions, 12563 flow, removed 32 selfloop flow, removed 11 redundant places. [2021-03-25 12:25:33,834 INFO L241 Difference]: Finished difference. Result has 395 places, 436 transitions, 11741 flow [2021-03-25 12:25:33,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=11669, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11741, PETRI_PLACES=395, PETRI_TRANSITIONS=436} [2021-03-25 12:25:33,834 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 348 predicate places. [2021-03-25 12:25:33,834 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:33,834 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 436 transitions, 11741 flow [2021-03-25 12:25:33,834 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 436 transitions, 11741 flow [2021-03-25 12:25:33,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 436 transitions, 11741 flow [2021-03-25 12:25:33,974 INFO L129 PetriNetUnfolder]: 314/840 cut-off events. [2021-03-25 12:25:33,975 INFO L130 PetriNetUnfolder]: For 73407/73412 co-relation queries the response was YES. [2021-03-25 12:25:33,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13495 conditions, 840 events. 314/840 cut-off events. For 73407/73412 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6112 event pairs, 32 based on Foata normal form. 3/843 useless extension candidates. Maximal degree in co-relation 13297. Up to 279 conditions per place. [2021-03-25 12:25:33,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 12:25:34,015 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:34,015 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:34,015 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 12:25:34,015 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 436 transitions, 11741 flow [2021-03-25 12:25:34,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:34,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:34,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:34,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2021-03-25 12:25:34,015 INFO L428 AbstractCegarLoop]: === Iteration 551 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:34,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1456293723, now seen corresponding path program 201 times [2021-03-25 12:25:34,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:34,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666819254] [2021-03-25 12:25:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:34,021 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:34,026 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:34,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:34,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:34,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:34,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:34,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:34,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:34,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:34,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:34,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:34,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:34,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:34,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:34,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:34,095 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:34,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:34,111 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:34,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:34,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666819254] [2021-03-25 12:25:34,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:34,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:34,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573838052] [2021-03-25 12:25:34,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:34,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:34,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:34,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:34,114 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:34,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 436 transitions, 11741 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:34,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:34,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:34,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:34,573 INFO L129 PetriNetUnfolder]: 331/877 cut-off events. [2021-03-25 12:25:34,573 INFO L130 PetriNetUnfolder]: For 74758/74812 co-relation queries the response was YES. [2021-03-25 12:25:34,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14357 conditions, 877 events. 331/877 cut-off events. For 74758/74812 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6284 event pairs, 49 based on Foata normal form. 24/901 useless extension candidates. Maximal degree in co-relation 14161. Up to 694 conditions per place. [2021-03-25 12:25:34,586 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 402 selfloop transitions, 22 changer transitions 6/438 dead transitions. [2021-03-25 12:25:34,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 438 transitions, 12629 flow [2021-03-25 12:25:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 326 transitions. [2021-03-25 12:25:34,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2087067861715749 [2021-03-25 12:25:34,587 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 326 transitions. [2021-03-25 12:25:34,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 326 transitions. [2021-03-25 12:25:34,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:34,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 326 transitions. [2021-03-25 12:25:34,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.636363636363637) internal successors, (326), 11 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:34,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:34,588 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 142.0) internal successors, (1704), 12 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:34,588 INFO L185 Difference]: Start difference. First operand has 393 places, 436 transitions, 11741 flow. Second operand 11 states and 326 transitions. [2021-03-25 12:25:34,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 438 transitions, 12629 flow [2021-03-25 12:25:34,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 438 transitions, 12512 flow, removed 4 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:34,898 INFO L241 Difference]: Finished difference. Result has 390 places, 430 transitions, 11571 flow [2021-03-25 12:25:34,898 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=11624, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11571, PETRI_PLACES=390, PETRI_TRANSITIONS=430} [2021-03-25 12:25:34,898 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 343 predicate places. [2021-03-25 12:25:34,898 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:34,898 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 430 transitions, 11571 flow [2021-03-25 12:25:34,898 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 430 transitions, 11571 flow [2021-03-25 12:25:34,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 430 transitions, 11571 flow [2021-03-25 12:25:35,030 INFO L129 PetriNetUnfolder]: 318/838 cut-off events. [2021-03-25 12:25:35,030 INFO L130 PetriNetUnfolder]: For 76308/76360 co-relation queries the response was YES. [2021-03-25 12:25:35,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13499 conditions, 838 events. 318/838 cut-off events. For 76308/76360 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6036 event pairs, 34 based on Foata normal form. 3/839 useless extension candidates. Maximal degree in co-relation 13323. Up to 286 conditions per place. [2021-03-25 12:25:35,046 INFO L142 LiptonReduction]: Number of co-enabled transitions 782 [2021-03-25 12:25:35,067 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:35,067 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:35,067 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 12:25:35,068 INFO L480 AbstractCegarLoop]: Abstraction has has 384 places, 430 transitions, 11571 flow [2021-03-25 12:25:35,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:35,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:35,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:35,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2021-03-25 12:25:35,068 INFO L428 AbstractCegarLoop]: === Iteration 552 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:35,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:35,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1801802224, now seen corresponding path program 36 times [2021-03-25 12:25:35,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:35,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553021962] [2021-03-25 12:25:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:35,073 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:35,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:35,078 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:35,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:35,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:35,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:35,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:35,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:35,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:35,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:35,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:35,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:35,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:35,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:35,147 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:35,163 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:35,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:35,181 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:35,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553021962] [2021-03-25 12:25:35,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:35,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:35,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004072311] [2021-03-25 12:25:35,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:35,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:35,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:35,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:35,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:35,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 430 transitions, 11571 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:35,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:35,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:35,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:35,800 INFO L129 PetriNetUnfolder]: 333/875 cut-off events. [2021-03-25 12:25:35,800 INFO L130 PetriNetUnfolder]: For 76528/76582 co-relation queries the response was YES. [2021-03-25 12:25:35,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14506 conditions, 875 events. 333/875 cut-off events. For 76528/76582 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6207 event pairs, 47 based on Foata normal form. 24/899 useless extension candidates. Maximal degree in co-relation 14327. Up to 671 conditions per place. [2021-03-25 12:25:35,813 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 367 selfloop transitions, 67 changer transitions 2/444 dead transitions. [2021-03-25 12:25:35,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 444 transitions, 13193 flow [2021-03-25 12:25:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:25:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:25:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 454 transitions. [2021-03-25 12:25:35,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2131455399061033 [2021-03-25 12:25:35,815 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 454 transitions. [2021-03-25 12:25:35,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 454 transitions. [2021-03-25 12:25:35,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:35,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 454 transitions. [2021-03-25 12:25:35,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.266666666666666) internal successors, (454), 15 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:35,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 142.0) internal successors, (2272), 16 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:35,816 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 142.0) internal successors, (2272), 16 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:35,816 INFO L185 Difference]: Start difference. First operand has 384 places, 430 transitions, 11571 flow. Second operand 15 states and 454 transitions. [2021-03-25 12:25:35,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 444 transitions, 13193 flow [2021-03-25 12:25:36,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 444 transitions, 13053 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-25 12:25:36,180 INFO L241 Difference]: Finished difference. Result has 388 places, 437 transitions, 11944 flow [2021-03-25 12:25:36,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=11431, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11944, PETRI_PLACES=388, PETRI_TRANSITIONS=437} [2021-03-25 12:25:36,180 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 341 predicate places. [2021-03-25 12:25:36,180 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:36,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 437 transitions, 11944 flow [2021-03-25 12:25:36,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 437 transitions, 11944 flow [2021-03-25 12:25:36,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 437 transitions, 11944 flow [2021-03-25 12:25:36,329 INFO L129 PetriNetUnfolder]: 315/857 cut-off events. [2021-03-25 12:25:36,329 INFO L130 PetriNetUnfolder]: For 75305/75332 co-relation queries the response was YES. [2021-03-25 12:25:36,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13662 conditions, 857 events. 315/857 cut-off events. For 75305/75332 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 6335 event pairs, 40 based on Foata normal form. 6/860 useless extension candidates. Maximal degree in co-relation 13487. Up to 287 conditions per place. [2021-03-25 12:25:36,347 INFO L142 LiptonReduction]: Number of co-enabled transitions 802 [2021-03-25 12:25:36,369 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:36,369 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:36,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-25 12:25:36,370 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 437 transitions, 11944 flow [2021-03-25 12:25:36,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:36,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:36,370 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:36,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2021-03-25 12:25:36,370 INFO L428 AbstractCegarLoop]: === Iteration 553 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:36,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:36,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1437367286, now seen corresponding path program 37 times [2021-03-25 12:25:36,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:36,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263222593] [2021-03-25 12:25:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:36,375 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:36,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:36,381 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:36,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:36,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:36,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:36,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:36,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:36,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:36,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:36,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:36,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:36,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:36,451 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:36,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:36,467 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:36,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:36,485 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:36,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:36,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263222593] [2021-03-25 12:25:36,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:36,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:36,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702443823] [2021-03-25 12:25:36,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:36,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:36,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:36,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:36,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:36,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 437 transitions, 11944 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:36,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:36,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:36,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:37,061 INFO L129 PetriNetUnfolder]: 336/894 cut-off events. [2021-03-25 12:25:37,062 INFO L130 PetriNetUnfolder]: For 84504/84558 co-relation queries the response was YES. [2021-03-25 12:25:37,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15070 conditions, 894 events. 336/894 cut-off events. For 84504/84558 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6425 event pairs, 50 based on Foata normal form. 24/918 useless extension candidates. Maximal degree in co-relation 14892. Up to 688 conditions per place. [2021-03-25 12:25:37,075 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 394 selfloop transitions, 46 changer transitions 2/450 dead transitions. [2021-03-25 12:25:37,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 450 transitions, 13748 flow [2021-03-25 12:25:37,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 425 transitions. [2021-03-25 12:25:37,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2137826961770624 [2021-03-25 12:25:37,077 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 425 transitions. [2021-03-25 12:25:37,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 425 transitions. [2021-03-25 12:25:37,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:37,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 425 transitions. [2021-03-25 12:25:37,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.357142857142858) internal successors, (425), 14 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:37,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:37,078 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 142.0) internal successors, (2130), 15 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:37,078 INFO L185 Difference]: Start difference. First operand has 386 places, 437 transitions, 11944 flow. Second operand 14 states and 425 transitions. [2021-03-25 12:25:37,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 450 transitions, 13748 flow [2021-03-25 12:25:37,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 450 transitions, 13536 flow, removed 80 selfloop flow, removed 9 redundant places. [2021-03-25 12:25:37,429 INFO L241 Difference]: Finished difference. Result has 394 places, 441 transitions, 12169 flow [2021-03-25 12:25:37,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=11742, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12169, PETRI_PLACES=394, PETRI_TRANSITIONS=441} [2021-03-25 12:25:37,429 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 347 predicate places. [2021-03-25 12:25:37,429 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:37,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 394 places, 441 transitions, 12169 flow [2021-03-25 12:25:37,429 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 394 places, 441 transitions, 12169 flow [2021-03-25 12:25:37,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 392 places, 441 transitions, 12169 flow [2021-03-25 12:25:37,577 INFO L129 PetriNetUnfolder]: 322/867 cut-off events. [2021-03-25 12:25:37,577 INFO L130 PetriNetUnfolder]: For 91269/91379 co-relation queries the response was YES. [2021-03-25 12:25:37,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14207 conditions, 867 events. 322/867 cut-off events. For 91269/91379 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6418 event pairs, 41 based on Foata normal form. 15/873 useless extension candidates. Maximal degree in co-relation 14029. Up to 300 conditions per place. [2021-03-25 12:25:37,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:25:37,618 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:37,618 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:37,618 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-25 12:25:37,618 INFO L480 AbstractCegarLoop]: Abstraction has has 392 places, 441 transitions, 12169 flow [2021-03-25 12:25:37,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:37,618 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:37,618 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:37,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2021-03-25 12:25:37,619 INFO L428 AbstractCegarLoop]: === Iteration 554 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:37,619 INFO L82 PathProgramCache]: Analyzing trace with hash -352076092, now seen corresponding path program 38 times [2021-03-25 12:25:37,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:37,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764748089] [2021-03-25 12:25:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:37,624 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:37,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:37,629 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:37,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:37,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:37,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:37,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:37,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:37,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:37,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:37,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:37,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:37,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:37,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:37,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:37,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:37,716 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:37,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:37,733 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:37,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:37,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764748089] [2021-03-25 12:25:37,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:37,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:37,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131294932] [2021-03-25 12:25:37,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:37,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:37,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:37,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:37,737 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:37,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 441 transitions, 12169 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:37,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:37,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:37,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:38,456 INFO L129 PetriNetUnfolder]: 360/928 cut-off events. [2021-03-25 12:25:38,456 INFO L130 PetriNetUnfolder]: For 99342/99396 co-relation queries the response was YES. [2021-03-25 12:25:38,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16461 conditions, 928 events. 360/928 cut-off events. For 99342/99396 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6660 event pairs, 45 based on Foata normal form. 25/952 useless extension candidates. Maximal degree in co-relation 16280. Up to 702 conditions per place. [2021-03-25 12:25:38,469 INFO L132 encePairwiseOnDemand]: 128/142 looper letters, 372 selfloop transitions, 89 changer transitions 8/477 dead transitions. [2021-03-25 12:25:38,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 477 transitions, 15351 flow [2021-03-25 12:25:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 12:25:38,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 12:25:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 518 transitions. [2021-03-25 12:25:38,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21458160729080364 [2021-03-25 12:25:38,471 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 518 transitions. [2021-03-25 12:25:38,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 518 transitions. [2021-03-25 12:25:38,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:38,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 518 transitions. [2021-03-25 12:25:38,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 30.470588235294116) internal successors, (518), 17 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:38,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 142.0) internal successors, (2556), 18 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:38,472 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 142.0) internal successors, (2556), 18 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:38,472 INFO L185 Difference]: Start difference. First operand has 392 places, 441 transitions, 12169 flow. Second operand 17 states and 518 transitions. [2021-03-25 12:25:38,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 477 transitions, 15351 flow [2021-03-25 12:25:38,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 477 transitions, 15117 flow, removed 110 selfloop flow, removed 4 redundant places. [2021-03-25 12:25:38,838 INFO L241 Difference]: Finished difference. Result has 407 places, 466 transitions, 13692 flow [2021-03-25 12:25:38,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=11947, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13692, PETRI_PLACES=407, PETRI_TRANSITIONS=466} [2021-03-25 12:25:38,838 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 360 predicate places. [2021-03-25 12:25:38,838 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:38,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 407 places, 466 transitions, 13692 flow [2021-03-25 12:25:38,839 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 407 places, 466 transitions, 13692 flow [2021-03-25 12:25:38,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 404 places, 466 transitions, 13692 flow [2021-03-25 12:25:38,989 INFO L129 PetriNetUnfolder]: 339/895 cut-off events. [2021-03-25 12:25:38,989 INFO L130 PetriNetUnfolder]: For 101109/101212 co-relation queries the response was YES. [2021-03-25 12:25:38,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15218 conditions, 895 events. 339/895 cut-off events. For 101109/101212 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6575 event pairs, 37 based on Foata normal form. 18/910 useless extension candidates. Maximal degree in co-relation 15018. Up to 315 conditions per place. [2021-03-25 12:25:39,007 INFO L142 LiptonReduction]: Number of co-enabled transitions 818 [2021-03-25 12:25:39,032 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:39,032 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:39,032 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 194 [2021-03-25 12:25:39,032 INFO L480 AbstractCegarLoop]: Abstraction has has 404 places, 466 transitions, 13692 flow [2021-03-25 12:25:39,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:39,032 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:39,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:39,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2021-03-25 12:25:39,032 INFO L428 AbstractCegarLoop]: === Iteration 555 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:39,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:39,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1564773570, now seen corresponding path program 10 times [2021-03-25 12:25:39,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:39,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100450590] [2021-03-25 12:25:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:39,038 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:39,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:39,043 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:39,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:39,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:39,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:39,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:39,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:39,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:39,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:39,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:39,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:39,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:39,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:39,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:39,141 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:39,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:39,158 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:39,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:39,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:39,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100450590] [2021-03-25 12:25:39,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:39,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:39,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488017286] [2021-03-25 12:25:39,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:39,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:39,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:39,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:39,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 142 [2021-03-25 12:25:39,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 466 transitions, 13692 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:39,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:39,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 142 [2021-03-25 12:25:39,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:39,640 INFO L129 PetriNetUnfolder]: 356/925 cut-off events. [2021-03-25 12:25:39,640 INFO L130 PetriNetUnfolder]: For 99283/99350 co-relation queries the response was YES. [2021-03-25 12:25:39,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16367 conditions, 925 events. 356/925 cut-off events. For 99283/99350 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6635 event pairs, 50 based on Foata normal form. 18/942 useless extension candidates. Maximal degree in co-relation 16169. Up to 748 conditions per place. [2021-03-25 12:25:39,654 INFO L132 encePairwiseOnDemand]: 130/142 looper letters, 433 selfloop transitions, 20 changer transitions 6/467 dead transitions. [2021-03-25 12:25:39,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 467 transitions, 14629 flow [2021-03-25 12:25:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 348 transitions. [2021-03-25 12:25:39,655 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20422535211267606 [2021-03-25 12:25:39,656 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 348 transitions. [2021-03-25 12:25:39,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 348 transitions. [2021-03-25 12:25:39,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:39,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 348 transitions. [2021-03-25 12:25:39,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:39,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:39,657 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:39,657 INFO L185 Difference]: Start difference. First operand has 404 places, 466 transitions, 13692 flow. Second operand 12 states and 348 transitions. [2021-03-25 12:25:39,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 467 transitions, 14629 flow [2021-03-25 12:25:40,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 467 transitions, 13692 flow, removed 463 selfloop flow, removed 2 redundant places. [2021-03-25 12:25:40,046 INFO L241 Difference]: Finished difference. Result has 415 places, 461 transitions, 12740 flow [2021-03-25 12:25:40,046 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=12755, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12740, PETRI_PLACES=415, PETRI_TRANSITIONS=461} [2021-03-25 12:25:40,046 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 368 predicate places. [2021-03-25 12:25:40,046 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:40,046 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 415 places, 461 transitions, 12740 flow [2021-03-25 12:25:40,046 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 415 places, 461 transitions, 12740 flow [2021-03-25 12:25:40,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 410 places, 461 transitions, 12740 flow [2021-03-25 12:25:40,212 INFO L129 PetriNetUnfolder]: 338/888 cut-off events. [2021-03-25 12:25:40,213 INFO L130 PetriNetUnfolder]: For 91049/91188 co-relation queries the response was YES. [2021-03-25 12:25:40,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14569 conditions, 888 events. 338/888 cut-off events. For 91049/91188 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6482 event pairs, 38 based on Foata normal form. 18/903 useless extension candidates. Maximal degree in co-relation 14388. Up to 297 conditions per place. [2021-03-25 12:25:40,230 INFO L142 LiptonReduction]: Number of co-enabled transitions 816 [2021-03-25 12:25:40,318 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:40,319 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:25:40,319 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 273 [2021-03-25 12:25:40,319 INFO L480 AbstractCegarLoop]: Abstraction has has 408 places, 460 transitions, 12730 flow [2021-03-25 12:25:40,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:40,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:40,319 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:40,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2021-03-25 12:25:40,319 INFO L428 AbstractCegarLoop]: === Iteration 556 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:40,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:40,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1856453046, now seen corresponding path program 11 times [2021-03-25 12:25:40,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:40,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826370342] [2021-03-25 12:25:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:40,325 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:40,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:40,330 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:40,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:40,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:40,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:40,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:40,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:40,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:40,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:40,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:40,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:40,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:40,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:40,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:40,416 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:40,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:40,433 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:40,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:40,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826370342] [2021-03-25 12:25:40,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:40,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:40,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192673869] [2021-03-25 12:25:40,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:40,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:40,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:40,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:40,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 143 [2021-03-25 12:25:40,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 460 transitions, 12730 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:40,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:40,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 143 [2021-03-25 12:25:40,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:40,969 INFO L129 PetriNetUnfolder]: 354/919 cut-off events. [2021-03-25 12:25:40,969 INFO L130 PetriNetUnfolder]: For 90547/90593 co-relation queries the response was YES. [2021-03-25 12:25:40,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15703 conditions, 919 events. 354/919 cut-off events. For 90547/90593 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6596 event pairs, 50 based on Foata normal form. 18/937 useless extension candidates. Maximal degree in co-relation 15519. Up to 746 conditions per place. [2021-03-25 12:25:40,983 INFO L132 encePairwiseOnDemand]: 132/143 looper letters, 432 selfloop transitions, 17 changer transitions 4/461 dead transitions. [2021-03-25 12:25:40,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 461 transitions, 13657 flow [2021-03-25 12:25:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 319 transitions. [2021-03-25 12:25:40,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20279720279720279 [2021-03-25 12:25:40,985 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 319 transitions. [2021-03-25 12:25:40,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 319 transitions. [2021-03-25 12:25:40,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:40,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 319 transitions. [2021-03-25 12:25:40,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:40,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 143.0) internal successors, (1716), 12 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:40,986 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 143.0) internal successors, (1716), 12 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:40,986 INFO L185 Difference]: Start difference. First operand has 408 places, 460 transitions, 12730 flow. Second operand 11 states and 319 transitions. [2021-03-25 12:25:40,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 461 transitions, 13657 flow [2021-03-25 12:25:41,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 461 transitions, 13580 flow, removed 6 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:41,337 INFO L241 Difference]: Finished difference. Result has 406 places, 457 transitions, 12664 flow [2021-03-25 12:25:41,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=12655, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12664, PETRI_PLACES=406, PETRI_TRANSITIONS=457} [2021-03-25 12:25:41,337 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 359 predicate places. [2021-03-25 12:25:41,337 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:41,337 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 457 transitions, 12664 flow [2021-03-25 12:25:41,337 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 457 transitions, 12664 flow [2021-03-25 12:25:41,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 400 places, 457 transitions, 12664 flow [2021-03-25 12:25:41,480 INFO L129 PetriNetUnfolder]: 335/885 cut-off events. [2021-03-25 12:25:41,480 INFO L130 PetriNetUnfolder]: For 91558/91639 co-relation queries the response was YES. [2021-03-25 12:25:41,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14533 conditions, 885 events. 335/885 cut-off events. For 91558/91639 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 6454 event pairs, 34 based on Foata normal form. 17/902 useless extension candidates. Maximal degree in co-relation 14354. Up to 295 conditions per place. [2021-03-25 12:25:41,496 INFO L142 LiptonReduction]: Number of co-enabled transitions 816 [2021-03-25 12:25:41,520 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:41,520 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:41,520 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-03-25 12:25:41,520 INFO L480 AbstractCegarLoop]: Abstraction has has 400 places, 457 transitions, 12664 flow [2021-03-25 12:25:41,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:41,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:41,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:41,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2021-03-25 12:25:41,520 INFO L428 AbstractCegarLoop]: === Iteration 557 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:41,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:41,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1314714902, now seen corresponding path program 39 times [2021-03-25 12:25:41,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:41,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230149458] [2021-03-25 12:25:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:41,526 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:41,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:41,531 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:41,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:41,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:41,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:41,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:41,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:41,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:41,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:41,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:41,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:41,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:41,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:41,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:41,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:41,616 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:41,634 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:41,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:41,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230149458] [2021-03-25 12:25:41,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:41,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:41,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063523319] [2021-03-25 12:25:41,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:41,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:41,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:41,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:41,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 143 [2021-03-25 12:25:41,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 457 transitions, 12664 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:41,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:41,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 143 [2021-03-25 12:25:41,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:42,174 INFO L129 PetriNetUnfolder]: 352/916 cut-off events. [2021-03-25 12:25:42,175 INFO L130 PetriNetUnfolder]: For 91346/91413 co-relation queries the response was YES. [2021-03-25 12:25:42,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15682 conditions, 916 events. 352/916 cut-off events. For 91346/91413 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6571 event pairs, 50 based on Foata normal form. 18/933 useless extension candidates. Maximal degree in co-relation 15498. Up to 732 conditions per place. [2021-03-25 12:25:42,189 INFO L132 encePairwiseOnDemand]: 130/143 looper letters, 420 selfloop transitions, 33 changer transitions 3/464 dead transitions. [2021-03-25 12:25:42,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 464 transitions, 13930 flow [2021-03-25 12:25:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 412 transitions. [2021-03-25 12:25:42,191 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2057942057942058 [2021-03-25 12:25:42,191 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 412 transitions. [2021-03-25 12:25:42,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 412 transitions. [2021-03-25 12:25:42,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:42,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 412 transitions. [2021-03-25 12:25:42,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.428571428571427) internal successors, (412), 14 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:42,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 143.0) internal successors, (2145), 15 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:42,192 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 143.0) internal successors, (2145), 15 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:42,192 INFO L185 Difference]: Start difference. First operand has 400 places, 457 transitions, 12664 flow. Second operand 14 states and 412 transitions. [2021-03-25 12:25:42,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 464 transitions, 13930 flow [2021-03-25 12:25:42,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 464 transitions, 13881 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:42,543 INFO L241 Difference]: Finished difference. Result has 406 places, 457 transitions, 12734 flow [2021-03-25 12:25:42,543 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=12617, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12734, PETRI_PLACES=406, PETRI_TRANSITIONS=457} [2021-03-25 12:25:42,543 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 359 predicate places. [2021-03-25 12:25:42,543 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:42,543 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 457 transitions, 12734 flow [2021-03-25 12:25:42,543 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 457 transitions, 12734 flow [2021-03-25 12:25:42,547 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 405 places, 457 transitions, 12734 flow [2021-03-25 12:25:42,688 INFO L129 PetriNetUnfolder]: 333/870 cut-off events. [2021-03-25 12:25:42,688 INFO L130 PetriNetUnfolder]: For 93061/93134 co-relation queries the response was YES. [2021-03-25 12:25:42,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14592 conditions, 870 events. 333/870 cut-off events. For 93061/93134 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 6310 event pairs, 35 based on Foata normal form. 17/887 useless extension candidates. Maximal degree in co-relation 14409. Up to 294 conditions per place. [2021-03-25 12:25:42,705 INFO L142 LiptonReduction]: Number of co-enabled transitions 818 [2021-03-25 12:25:42,858 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 12:25:42,858 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:25:42,858 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 315 [2021-03-25 12:25:42,859 INFO L480 AbstractCegarLoop]: Abstraction has has 403 places, 455 transitions, 12716 flow [2021-03-25 12:25:42,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:42,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:42,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:42,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2021-03-25 12:25:42,859 INFO L428 AbstractCegarLoop]: === Iteration 558 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:42,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1252607545, now seen corresponding path program 202 times [2021-03-25 12:25:42,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:42,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103737105] [2021-03-25 12:25:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:42,866 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:42,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:42,871 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:42,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:42,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:42,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:42,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:42,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:42,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:42,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:42,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:42,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:42,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:42,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:42,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:42,946 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:42,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103737105] [2021-03-25 12:25:42,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:42,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:42,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728983329] [2021-03-25 12:25:42,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:42,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:42,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:42,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:42,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:42,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 455 transitions, 12716 flow. Second operand has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:42,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:42,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:42,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:43,451 INFO L129 PetriNetUnfolder]: 351/907 cut-off events. [2021-03-25 12:25:43,451 INFO L130 PetriNetUnfolder]: For 96008/96075 co-relation queries the response was YES. [2021-03-25 12:25:43,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15709 conditions, 907 events. 351/907 cut-off events. For 96008/96075 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6453 event pairs, 49 based on Foata normal form. 28/934 useless extension candidates. Maximal degree in co-relation 15522. Up to 732 conditions per place. [2021-03-25 12:25:43,464 INFO L132 encePairwiseOnDemand]: 132/145 looper letters, 415 selfloop transitions, 31 changer transitions 2/456 dead transitions. [2021-03-25 12:25:43,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 456 transitions, 13665 flow [2021-03-25 12:25:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 12:25:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 12:25:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 301 transitions. [2021-03-25 12:25:43,465 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20758620689655172 [2021-03-25 12:25:43,465 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 301 transitions. [2021-03-25 12:25:43,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 301 transitions. [2021-03-25 12:25:43,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:43,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 301 transitions. [2021-03-25 12:25:43,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 30.1) internal successors, (301), 10 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:43,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 145.0) internal successors, (1595), 11 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:43,466 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 145.0) internal successors, (1595), 11 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:43,466 INFO L185 Difference]: Start difference. First operand has 403 places, 455 transitions, 12716 flow. Second operand 10 states and 301 transitions. [2021-03-25 12:25:43,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 456 transitions, 13665 flow [2021-03-25 12:25:43,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 456 transitions, 13344 flow, removed 85 selfloop flow, removed 14 redundant places. [2021-03-25 12:25:43,862 INFO L241 Difference]: Finished difference. Result has 400 places, 454 transitions, 12468 flow [2021-03-25 12:25:43,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12395, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12468, PETRI_PLACES=400, PETRI_TRANSITIONS=454} [2021-03-25 12:25:43,862 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 353 predicate places. [2021-03-25 12:25:43,862 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:43,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 400 places, 454 transitions, 12468 flow [2021-03-25 12:25:43,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 400 places, 454 transitions, 12468 flow [2021-03-25 12:25:43,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 399 places, 454 transitions, 12468 flow [2021-03-25 12:25:44,064 INFO L129 PetriNetUnfolder]: 332/867 cut-off events. [2021-03-25 12:25:44,064 INFO L130 PetriNetUnfolder]: For 87577/87647 co-relation queries the response was YES. [2021-03-25 12:25:44,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14267 conditions, 867 events. 332/867 cut-off events. For 87577/87647 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6293 event pairs, 39 based on Foata normal form. 9/871 useless extension candidates. Maximal degree in co-relation 14078. Up to 292 conditions per place. [2021-03-25 12:25:44,092 INFO L142 LiptonReduction]: Number of co-enabled transitions 806 [2021-03-25 12:25:44,127 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:44,127 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:44,127 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 265 [2021-03-25 12:25:44,127 INFO L480 AbstractCegarLoop]: Abstraction has has 399 places, 454 transitions, 12468 flow [2021-03-25 12:25:44,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.22222222222222) internal successors, (245), 9 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:44,127 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:44,127 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:44,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2021-03-25 12:25:44,127 INFO L428 AbstractCegarLoop]: === Iteration 559 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:44,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1404116519, now seen corresponding path program 1 times [2021-03-25 12:25:44,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:44,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897616099] [2021-03-25 12:25:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:44,134 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:44,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:44,140 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:44,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:44,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:44,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:44,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:44,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:44,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:44,195 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-25 12:25:44,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 12:25:44,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:44,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:44,251 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:25:44,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:25:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:44,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897616099] [2021-03-25 12:25:44,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:44,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:25:44,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409576535] [2021-03-25 12:25:44,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:25:44,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:44,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:25:44,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:25:44,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:44,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 454 transitions, 12468 flow. Second operand has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:44,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:44,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:44,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:44,753 INFO L129 PetriNetUnfolder]: 351/910 cut-off events. [2021-03-25 12:25:44,753 INFO L130 PetriNetUnfolder]: For 87052/87119 co-relation queries the response was YES. [2021-03-25 12:25:44,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15424 conditions, 910 events. 351/910 cut-off events. For 87052/87119 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6515 event pairs, 49 based on Foata normal form. 28/937 useless extension candidates. Maximal degree in co-relation 15231. Up to 722 conditions per place. [2021-03-25 12:25:44,767 INFO L132 encePairwiseOnDemand]: 133/145 looper letters, 401 selfloop transitions, 43 changer transitions 3/455 dead transitions. [2021-03-25 12:25:44,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 455 transitions, 13438 flow [2021-03-25 12:25:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:44,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 361 transitions. [2021-03-25 12:25:44,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2074712643678161 [2021-03-25 12:25:44,769 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 361 transitions. [2021-03-25 12:25:44,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 361 transitions. [2021-03-25 12:25:44,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:44,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 361 transitions. [2021-03-25 12:25:44,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.083333333333332) internal successors, (361), 12 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:44,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:44,770 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:44,770 INFO L185 Difference]: Start difference. First operand has 399 places, 454 transitions, 12468 flow. Second operand 12 states and 361 transitions. [2021-03-25 12:25:44,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 455 transitions, 13438 flow [2021-03-25 12:25:45,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 455 transitions, 13334 flow, removed 5 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:45,107 INFO L241 Difference]: Finished difference. Result has 401 places, 451 transitions, 12436 flow [2021-03-25 12:25:45,107 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12364, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12436, PETRI_PLACES=401, PETRI_TRANSITIONS=451} [2021-03-25 12:25:45,107 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 354 predicate places. [2021-03-25 12:25:45,107 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:45,107 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 451 transitions, 12436 flow [2021-03-25 12:25:45,107 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 451 transitions, 12436 flow [2021-03-25 12:25:45,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 397 places, 451 transitions, 12436 flow [2021-03-25 12:25:45,244 INFO L129 PetriNetUnfolder]: 333/853 cut-off events. [2021-03-25 12:25:45,244 INFO L130 PetriNetUnfolder]: For 88579/88656 co-relation queries the response was YES. [2021-03-25 12:25:45,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14243 conditions, 853 events. 333/853 cut-off events. For 88579/88656 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 6088 event pairs, 38 based on Foata normal form. 12/858 useless extension candidates. Maximal degree in co-relation 14055. Up to 292 conditions per place. [2021-03-25 12:25:45,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:25:45,284 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:45,284 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:45,284 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-25 12:25:45,284 INFO L480 AbstractCegarLoop]: Abstraction has has 397 places, 451 transitions, 12436 flow [2021-03-25 12:25:45,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.0) internal successors, (243), 9 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:45,284 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:45,284 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:45,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2021-03-25 12:25:45,284 INFO L428 AbstractCegarLoop]: === Iteration 560 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:45,284 INFO L82 PathProgramCache]: Analyzing trace with hash 193836579, now seen corresponding path program 203 times [2021-03-25 12:25:45,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:45,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784284920] [2021-03-25 12:25:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:45,290 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:45,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:45,295 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:45,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:45,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:45,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:45,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:45,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:45,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:45,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:45,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:45,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:45,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:45,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:45,364 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:45,380 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:45,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:45,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784284920] [2021-03-25 12:25:45,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:45,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:45,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963176270] [2021-03-25 12:25:45,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:45,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:45,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:45,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:45,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:45,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 451 transitions, 12436 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:45,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:45,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:45,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:45,827 INFO L129 PetriNetUnfolder]: 350/910 cut-off events. [2021-03-25 12:25:45,827 INFO L130 PetriNetUnfolder]: For 86932/86999 co-relation queries the response was YES. [2021-03-25 12:25:45,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15432 conditions, 910 events. 350/910 cut-off events. For 86932/86999 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6506 event pairs, 51 based on Foata normal form. 28/937 useless extension candidates. Maximal degree in co-relation 15240. Up to 727 conditions per place. [2021-03-25 12:25:45,841 INFO L132 encePairwiseOnDemand]: 132/145 looper letters, 412 selfloop transitions, 29 changer transitions 3/452 dead transitions. [2021-03-25 12:25:45,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 452 transitions, 13368 flow [2021-03-25 12:25:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:45,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 325 transitions. [2021-03-25 12:25:45,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20376175548589343 [2021-03-25 12:25:45,843 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 325 transitions. [2021-03-25 12:25:45,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 325 transitions. [2021-03-25 12:25:45,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:45,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 325 transitions. [2021-03-25 12:25:45,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.545454545454547) internal successors, (325), 11 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:45,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 145.0) internal successors, (1740), 12 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:45,844 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 145.0) internal successors, (1740), 12 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:45,844 INFO L185 Difference]: Start difference. First operand has 397 places, 451 transitions, 12436 flow. Second operand 11 states and 325 transitions. [2021-03-25 12:25:45,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 452 transitions, 13368 flow [2021-03-25 12:25:46,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 452 transitions, 13265 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-03-25 12:25:46,161 INFO L241 Difference]: Finished difference. Result has 400 places, 449 transitions, 12369 flow [2021-03-25 12:25:46,161 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12333, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12369, PETRI_PLACES=400, PETRI_TRANSITIONS=449} [2021-03-25 12:25:46,161 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 353 predicate places. [2021-03-25 12:25:46,161 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:46,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 400 places, 449 transitions, 12369 flow [2021-03-25 12:25:46,161 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 400 places, 449 transitions, 12369 flow [2021-03-25 12:25:46,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 396 places, 449 transitions, 12369 flow [2021-03-25 12:25:46,336 INFO L129 PetriNetUnfolder]: 332/853 cut-off events. [2021-03-25 12:25:46,337 INFO L130 PetriNetUnfolder]: For 87991/88063 co-relation queries the response was YES. [2021-03-25 12:25:46,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14203 conditions, 853 events. 332/853 cut-off events. For 87991/88063 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6094 event pairs, 39 based on Foata normal form. 11/858 useless extension candidates. Maximal degree in co-relation 14026. Up to 290 conditions per place. [2021-03-25 12:25:46,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 788 [2021-03-25 12:25:46,389 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:46,389 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:46,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 228 [2021-03-25 12:25:46,389 INFO L480 AbstractCegarLoop]: Abstraction has has 396 places, 449 transitions, 12369 flow [2021-03-25 12:25:46,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:46,390 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:46,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:46,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2021-03-25 12:25:46,390 INFO L428 AbstractCegarLoop]: === Iteration 561 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:46,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:46,390 INFO L82 PathProgramCache]: Analyzing trace with hash 411572395, now seen corresponding path program 204 times [2021-03-25 12:25:46,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:46,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245097663] [2021-03-25 12:25:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:46,395 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:46,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:46,402 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:46,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:46,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:46,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:46,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:46,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:46,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:46,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:46,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:46,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:46,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:46,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:46,466 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:46,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:46,481 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:46,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:46,497 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:46,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:46,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245097663] [2021-03-25 12:25:46,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:46,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:46,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119125758] [2021-03-25 12:25:46,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:46,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:46,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:46,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:46,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:46,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 449 transitions, 12369 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:46,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:46,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:46,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:46,956 INFO L129 PetriNetUnfolder]: 349/899 cut-off events. [2021-03-25 12:25:46,956 INFO L130 PetriNetUnfolder]: For 86780/86847 co-relation queries the response was YES. [2021-03-25 12:25:46,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15354 conditions, 899 events. 349/899 cut-off events. For 86780/86847 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6376 event pairs, 50 based on Foata normal form. 28/926 useless extension candidates. Maximal degree in co-relation 15174. Up to 725 conditions per place. [2021-03-25 12:25:46,969 INFO L132 encePairwiseOnDemand]: 132/145 looper letters, 411 selfloop transitions, 24 changer transitions 6/449 dead transitions. [2021-03-25 12:25:46,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 449 transitions, 13251 flow [2021-03-25 12:25:46,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:25:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:25:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 323 transitions. [2021-03-25 12:25:46,970 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2025078369905956 [2021-03-25 12:25:46,970 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 323 transitions. [2021-03-25 12:25:46,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 323 transitions. [2021-03-25 12:25:46,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:46,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 323 transitions. [2021-03-25 12:25:46,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.363636363636363) internal successors, (323), 11 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:46,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 145.0) internal successors, (1740), 12 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:46,971 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 145.0) internal successors, (1740), 12 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:46,971 INFO L185 Difference]: Start difference. First operand has 396 places, 449 transitions, 12369 flow. Second operand 11 states and 323 transitions. [2021-03-25 12:25:46,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 449 transitions, 13251 flow [2021-03-25 12:25:47,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 449 transitions, 13143 flow, removed 3 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:47,295 INFO L241 Difference]: Finished difference. Result has 397 places, 443 transitions, 12204 flow [2021-03-25 12:25:47,295 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12261, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12204, PETRI_PLACES=397, PETRI_TRANSITIONS=443} [2021-03-25 12:25:47,295 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 350 predicate places. [2021-03-25 12:25:47,295 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:47,295 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 397 places, 443 transitions, 12204 flow [2021-03-25 12:25:47,296 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 397 places, 443 transitions, 12204 flow [2021-03-25 12:25:47,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 443 transitions, 12204 flow [2021-03-25 12:25:47,434 INFO L129 PetriNetUnfolder]: 332/851 cut-off events. [2021-03-25 12:25:47,434 INFO L130 PetriNetUnfolder]: For 90286/90401 co-relation queries the response was YES. [2021-03-25 12:25:47,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14157 conditions, 851 events. 332/851 cut-off events. For 90286/90401 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6076 event pairs, 45 based on Foata normal form. 14/859 useless extension candidates. Maximal degree in co-relation 13982. Up to 292 conditions per place. [2021-03-25 12:25:47,451 INFO L142 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-25 12:25:47,474 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:47,474 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:47,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-25 12:25:47,474 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 443 transitions, 12204 flow [2021-03-25 12:25:47,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:47,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:47,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:47,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2021-03-25 12:25:47,474 INFO L428 AbstractCegarLoop]: === Iteration 562 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:47,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:47,475 INFO L82 PathProgramCache]: Analyzing trace with hash -476144485, now seen corresponding path program 205 times [2021-03-25 12:25:47,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:47,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779109029] [2021-03-25 12:25:47,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:47,480 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:47,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:47,485 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:47,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:47,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:47,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:47,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:47,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:47,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:47,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:47,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:47,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:47,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:47,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:47,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:47,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:47,571 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:47,588 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:47,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:47,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779109029] [2021-03-25 12:25:47,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:47,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:47,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721652161] [2021-03-25 12:25:47,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:47,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:47,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:47,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:47,591 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:47,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 443 transitions, 12204 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:47,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:47,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:47,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:48,107 INFO L129 PetriNetUnfolder]: 348/881 cut-off events. [2021-03-25 12:25:48,107 INFO L130 PetriNetUnfolder]: For 86208/86275 co-relation queries the response was YES. [2021-03-25 12:25:48,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15207 conditions, 881 events. 348/881 cut-off events. For 86208/86275 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 6128 event pairs, 42 based on Foata normal form. 47/928 useless extension candidates. Maximal degree in co-relation 15029. Up to 679 conditions per place. [2021-03-25 12:25:48,121 INFO L132 encePairwiseOnDemand]: 132/145 looper letters, 369 selfloop transitions, 61 changer transitions 8/446 dead transitions. [2021-03-25 12:25:48,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 446 transitions, 13128 flow [2021-03-25 12:25:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:48,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:48,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 361 transitions. [2021-03-25 12:25:48,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2074712643678161 [2021-03-25 12:25:48,122 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 361 transitions. [2021-03-25 12:25:48,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 361 transitions. [2021-03-25 12:25:48,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:48,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 361 transitions. [2021-03-25 12:25:48,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.083333333333332) internal successors, (361), 12 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:48,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:48,123 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:48,123 INFO L185 Difference]: Start difference. First operand has 389 places, 443 transitions, 12204 flow. Second operand 12 states and 361 transitions. [2021-03-25 12:25:48,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 446 transitions, 13128 flow [2021-03-25 12:25:48,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 446 transitions, 12776 flow, removed 68 selfloop flow, removed 15 redundant places. [2021-03-25 12:25:48,446 INFO L241 Difference]: Finished difference. Result has 386 places, 435 transitions, 11848 flow [2021-03-25 12:25:48,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=11852, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11848, PETRI_PLACES=386, PETRI_TRANSITIONS=435} [2021-03-25 12:25:48,446 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 339 predicate places. [2021-03-25 12:25:48,446 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:48,446 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 435 transitions, 11848 flow [2021-03-25 12:25:48,446 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 435 transitions, 11848 flow [2021-03-25 12:25:48,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 435 transitions, 11848 flow [2021-03-25 12:25:48,578 INFO L129 PetriNetUnfolder]: 332/844 cut-off events. [2021-03-25 12:25:48,578 INFO L130 PetriNetUnfolder]: For 78706/78764 co-relation queries the response was YES. [2021-03-25 12:25:48,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13714 conditions, 844 events. 332/844 cut-off events. For 78706/78764 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6000 event pairs, 40 based on Foata normal form. 17/861 useless extension candidates. Maximal degree in co-relation 13543. Up to 289 conditions per place. [2021-03-25 12:25:48,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 772 [2021-03-25 12:25:48,615 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:48,615 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:48,615 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 12:25:48,616 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 435 transitions, 11848 flow [2021-03-25 12:25:48,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:48,616 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:48,616 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:48,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2021-03-25 12:25:48,616 INFO L428 AbstractCegarLoop]: === Iteration 563 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:48,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:48,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1102874195, now seen corresponding path program 206 times [2021-03-25 12:25:48,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:48,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316144611] [2021-03-25 12:25:48,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:48,621 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:48,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:48,626 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:48,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:48,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:48,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:48,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:48,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:48,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:48,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:48,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:48,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:48,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:48,712 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:48,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:48,728 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:48,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:48,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:48,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316144611] [2021-03-25 12:25:48,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:48,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:48,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947707961] [2021-03-25 12:25:48,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:48,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:48,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:48,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:48,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:48,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 435 transitions, 11848 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:48,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:48,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:48,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:49,171 INFO L129 PetriNetUnfolder]: 347/879 cut-off events. [2021-03-25 12:25:49,171 INFO L130 PetriNetUnfolder]: For 79463/79530 co-relation queries the response was YES. [2021-03-25 12:25:49,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14763 conditions, 879 events. 347/879 cut-off events. For 79463/79530 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6126 event pairs, 46 based on Foata normal form. 27/906 useless extension candidates. Maximal degree in co-relation 14589. Up to 712 conditions per place. [2021-03-25 12:25:49,184 INFO L132 encePairwiseOnDemand]: 132/145 looper letters, 405 selfloop transitions, 16 changer transitions 7/436 dead transitions. [2021-03-25 12:25:49,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 436 transitions, 12720 flow [2021-03-25 12:25:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:49,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:49,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 346 transitions. [2021-03-25 12:25:49,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19885057471264367 [2021-03-25 12:25:49,185 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 346 transitions. [2021-03-25 12:25:49,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 346 transitions. [2021-03-25 12:25:49,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:49,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 346 transitions. [2021-03-25 12:25:49,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 28.833333333333332) internal successors, (346), 12 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:49,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:49,186 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:49,186 INFO L185 Difference]: Start difference. First operand has 380 places, 435 transitions, 11848 flow. Second operand 12 states and 346 transitions. [2021-03-25 12:25:49,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 436 transitions, 12720 flow [2021-03-25 12:25:49,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 436 transitions, 12041 flow, removed 150 selfloop flow, removed 24 redundant places. [2021-03-25 12:25:49,484 INFO L241 Difference]: Finished difference. Result has 368 places, 428 transitions, 11107 flow [2021-03-25 12:25:49,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=11169, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11107, PETRI_PLACES=368, PETRI_TRANSITIONS=428} [2021-03-25 12:25:49,484 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 321 predicate places. [2021-03-25 12:25:49,484 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:49,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 368 places, 428 transitions, 11107 flow [2021-03-25 12:25:49,484 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 368 places, 428 transitions, 11107 flow [2021-03-25 12:25:49,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 358 places, 428 transitions, 11107 flow [2021-03-25 12:25:49,606 INFO L129 PetriNetUnfolder]: 325/823 cut-off events. [2021-03-25 12:25:49,606 INFO L130 PetriNetUnfolder]: For 67858/67915 co-relation queries the response was YES. [2021-03-25 12:25:49,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12702 conditions, 823 events. 325/823 cut-off events. For 67858/67915 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5759 event pairs, 38 based on Foata normal form. 11/833 useless extension candidates. Maximal degree in co-relation 12541. Up to 287 conditions per place. [2021-03-25 12:25:49,620 INFO L142 LiptonReduction]: Number of co-enabled transitions 764 [2021-03-25 12:25:49,641 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:49,641 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:49,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 157 [2021-03-25 12:25:49,641 INFO L480 AbstractCegarLoop]: Abstraction has has 358 places, 428 transitions, 11107 flow [2021-03-25 12:25:49,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:49,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:49,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:49,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2021-03-25 12:25:49,641 INFO L428 AbstractCegarLoop]: === Iteration 564 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:49,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:49,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1572312156, now seen corresponding path program 40 times [2021-03-25 12:25:49,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:49,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512712717] [2021-03-25 12:25:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:49,649 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:49,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:49,655 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:49,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:49,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:49,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:49,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:49,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:49,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:49,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:49,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:49,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:49,726 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:49,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:49,729 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:49,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:49,745 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:49,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:49,761 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:49,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:49,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512712717] [2021-03-25 12:25:49,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:49,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:49,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378989026] [2021-03-25 12:25:49,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:49,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:49,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:49,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:49,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:49,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 428 transitions, 11107 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:49,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:49,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:49,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:50,372 INFO L129 PetriNetUnfolder]: 372/908 cut-off events. [2021-03-25 12:25:50,372 INFO L130 PetriNetUnfolder]: For 71944/72011 co-relation queries the response was YES. [2021-03-25 12:25:50,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14820 conditions, 908 events. 372/908 cut-off events. For 71944/72011 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6224 event pairs, 47 based on Foata normal form. 28/935 useless extension candidates. Maximal degree in co-relation 14656. Up to 699 conditions per place. [2021-03-25 12:25:50,385 INFO L132 encePairwiseOnDemand]: 131/145 looper letters, 353 selfloop transitions, 95 changer transitions 2/458 dead transitions. [2021-03-25 12:25:50,385 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 458 transitions, 13338 flow [2021-03-25 12:25:50,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 438 transitions. [2021-03-25 12:25:50,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21576354679802956 [2021-03-25 12:25:50,386 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 438 transitions. [2021-03-25 12:25:50,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 438 transitions. [2021-03-25 12:25:50,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:50,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 438 transitions. [2021-03-25 12:25:50,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 31.285714285714285) internal successors, (438), 14 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:50,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 145.0) internal successors, (2175), 15 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:50,387 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 145.0) internal successors, (2175), 15 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:50,387 INFO L185 Difference]: Start difference. First operand has 358 places, 428 transitions, 11107 flow. Second operand 14 states and 438 transitions. [2021-03-25 12:25:50,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 458 transitions, 13338 flow [2021-03-25 12:25:50,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 458 transitions, 12746 flow, removed 145 selfloop flow, removed 19 redundant places. [2021-03-25 12:25:50,647 INFO L241 Difference]: Finished difference. Result has 356 places, 452 transitions, 11822 flow [2021-03-25 12:25:50,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=10581, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11822, PETRI_PLACES=356, PETRI_TRANSITIONS=452} [2021-03-25 12:25:50,647 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 309 predicate places. [2021-03-25 12:25:50,647 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:50,647 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 356 places, 452 transitions, 11822 flow [2021-03-25 12:25:50,647 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 356 places, 452 transitions, 11822 flow [2021-03-25 12:25:50,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 356 places, 452 transitions, 11822 flow [2021-03-25 12:25:50,778 INFO L129 PetriNetUnfolder]: 354/887 cut-off events. [2021-03-25 12:25:50,778 INFO L130 PetriNetUnfolder]: For 64630/64691 co-relation queries the response was YES. [2021-03-25 12:25:50,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 887 events. 354/887 cut-off events. For 64630/64691 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 6287 event pairs, 32 based on Foata normal form. 13/900 useless extension candidates. Maximal degree in co-relation 13079. Up to 314 conditions per place. [2021-03-25 12:25:50,793 INFO L142 LiptonReduction]: Number of co-enabled transitions 764 [2021-03-25 12:25:50,816 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:50,816 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:50,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 12:25:50,816 INFO L480 AbstractCegarLoop]: Abstraction has has 356 places, 452 transitions, 11822 flow [2021-03-25 12:25:50,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:50,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:50,816 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:50,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2021-03-25 12:25:50,816 INFO L428 AbstractCegarLoop]: === Iteration 565 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:50,816 INFO L82 PathProgramCache]: Analyzing trace with hash 2132171662, now seen corresponding path program 41 times [2021-03-25 12:25:50,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:50,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973992762] [2021-03-25 12:25:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:50,821 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:50,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:50,827 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:50,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:50,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:50,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:50,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:50,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:50,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:50,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:50,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:50,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:50,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:50,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:50,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:50,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:50,911 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:50,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:50,920 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:50,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:50,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:50,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973992762] [2021-03-25 12:25:50,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:50,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:50,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704472982] [2021-03-25 12:25:50,923 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:50,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:50,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:50,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:50,923 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:50,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 452 transitions, 11822 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:50,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:50,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:50,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:51,527 INFO L129 PetriNetUnfolder]: 391/956 cut-off events. [2021-03-25 12:25:51,527 INFO L130 PetriNetUnfolder]: For 73656/73702 co-relation queries the response was YES. [2021-03-25 12:25:51,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15307 conditions, 956 events. 391/956 cut-off events. For 73656/73702 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6671 event pairs, 45 based on Foata normal form. 38/994 useless extension candidates. Maximal degree in co-relation 15137. Up to 730 conditions per place. [2021-03-25 12:25:51,540 INFO L132 encePairwiseOnDemand]: 131/145 looper letters, 364 selfloop transitions, 105 changer transitions 3/480 dead transitions. [2021-03-25 12:25:51,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 480 transitions, 14141 flow [2021-03-25 12:25:51,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:25:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:25:51,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 466 transitions. [2021-03-25 12:25:51,541 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2142528735632184 [2021-03-25 12:25:51,541 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 466 transitions. [2021-03-25 12:25:51,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 466 transitions. [2021-03-25 12:25:51,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:51,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 466 transitions. [2021-03-25 12:25:51,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 31.066666666666666) internal successors, (466), 15 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:51,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 145.0) internal successors, (2320), 16 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:51,543 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 145.0) internal successors, (2320), 16 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:51,543 INFO L185 Difference]: Start difference. First operand has 356 places, 452 transitions, 11822 flow. Second operand 15 states and 466 transitions. [2021-03-25 12:25:51,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 480 transitions, 14141 flow [2021-03-25 12:25:51,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 480 transitions, 13450 flow, removed 329 selfloop flow, removed 4 redundant places. [2021-03-25 12:25:51,789 INFO L241 Difference]: Finished difference. Result has 370 places, 473 transitions, 12492 flow [2021-03-25 12:25:51,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=11367, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12492, PETRI_PLACES=370, PETRI_TRANSITIONS=473} [2021-03-25 12:25:51,789 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 323 predicate places. [2021-03-25 12:25:51,789 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:51,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 473 transitions, 12492 flow [2021-03-25 12:25:51,789 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 473 transitions, 12492 flow [2021-03-25 12:25:51,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 473 transitions, 12492 flow [2021-03-25 12:25:51,928 INFO L129 PetriNetUnfolder]: 371/928 cut-off events. [2021-03-25 12:25:51,928 INFO L130 PetriNetUnfolder]: For 70441/70467 co-relation queries the response was YES. [2021-03-25 12:25:51,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13907 conditions, 928 events. 371/928 cut-off events. For 70441/70467 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6579 event pairs, 46 based on Foata normal form. 13/941 useless extension candidates. Maximal degree in co-relation 13736. Up to 325 conditions per place. [2021-03-25 12:25:51,943 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:25:51,968 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:51,968 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:51,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-25 12:25:51,968 INFO L480 AbstractCegarLoop]: Abstraction has has 369 places, 473 transitions, 12492 flow [2021-03-25 12:25:51,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:51,968 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:51,968 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:51,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2021-03-25 12:25:51,968 INFO L428 AbstractCegarLoop]: === Iteration 566 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:51,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:51,969 INFO L82 PathProgramCache]: Analyzing trace with hash -93041700, now seen corresponding path program 12 times [2021-03-25 12:25:51,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:51,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430720622] [2021-03-25 12:25:51,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:51,974 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:51,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:51,979 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:51,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:51,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:51,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:51,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:51,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:52,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:52,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:52,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:52,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:52,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:52,050 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:52,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:52,066 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:52,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:52,083 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:52,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:52,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430720622] [2021-03-25 12:25:52,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:52,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:52,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416176485] [2021-03-25 12:25:52,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:52,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:52,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:52,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:52,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:52,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 473 transitions, 12492 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:52,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:52,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:52,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:52,516 INFO L129 PetriNetUnfolder]: 389/960 cut-off events. [2021-03-25 12:25:52,516 INFO L130 PetriNetUnfolder]: For 71080/71234 co-relation queries the response was YES. [2021-03-25 12:25:52,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15008 conditions, 960 events. 389/960 cut-off events. For 71080/71234 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6708 event pairs, 50 based on Foata normal form. 20/979 useless extension candidates. Maximal degree in co-relation 14833. Up to 785 conditions per place. [2021-03-25 12:25:52,529 INFO L132 encePairwiseOnDemand]: 134/145 looper letters, 447 selfloop transitions, 13 changer transitions 6/474 dead transitions. [2021-03-25 12:25:52,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 474 transitions, 13439 flow [2021-03-25 12:25:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:25:52,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:25:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 344 transitions. [2021-03-25 12:25:52,530 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19770114942528735 [2021-03-25 12:25:52,530 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 344 transitions. [2021-03-25 12:25:52,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 344 transitions. [2021-03-25 12:25:52,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:52,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 344 transitions. [2021-03-25 12:25:52,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 28.666666666666668) internal successors, (344), 12 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:52,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:52,531 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 145.0) internal successors, (1885), 13 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:52,531 INFO L185 Difference]: Start difference. First operand has 369 places, 473 transitions, 12492 flow. Second operand 12 states and 344 transitions. [2021-03-25 12:25:52,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 474 transitions, 13439 flow [2021-03-25 12:25:52,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 474 transitions, 13042 flow, removed 149 selfloop flow, removed 7 redundant places. [2021-03-25 12:25:52,784 INFO L241 Difference]: Finished difference. Result has 375 places, 468 transitions, 12079 flow [2021-03-25 12:25:52,784 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12095, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12079, PETRI_PLACES=375, PETRI_TRANSITIONS=468} [2021-03-25 12:25:52,784 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 328 predicate places. [2021-03-25 12:25:52,784 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:52,784 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 375 places, 468 transitions, 12079 flow [2021-03-25 12:25:52,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 375 places, 468 transitions, 12079 flow [2021-03-25 12:25:52,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 365 places, 468 transitions, 12079 flow [2021-03-25 12:25:52,922 INFO L129 PetriNetUnfolder]: 372/930 cut-off events. [2021-03-25 12:25:52,922 INFO L130 PetriNetUnfolder]: For 64217/64269 co-relation queries the response was YES. [2021-03-25 12:25:52,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13672 conditions, 930 events. 372/930 cut-off events. For 64217/64269 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 6595 event pairs, 37 based on Foata normal form. 8/937 useless extension candidates. Maximal degree in co-relation 13508. Up to 324 conditions per place. [2021-03-25 12:25:52,938 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:25:52,962 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:52,962 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:52,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-03-25 12:25:52,962 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 468 transitions, 12079 flow [2021-03-25 12:25:52,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:52,962 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:52,962 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:52,962 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2021-03-25 12:25:52,962 INFO L428 AbstractCegarLoop]: === Iteration 567 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:52,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash -401042770, now seen corresponding path program 42 times [2021-03-25 12:25:52,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:52,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186908147] [2021-03-25 12:25:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:52,968 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:52,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:52,973 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:52,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:52,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:52,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:52,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:52,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:53,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:53,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:53,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:53,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:53,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:53,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:53,041 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:53,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:53,057 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:53,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:53,075 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:53,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:53,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186908147] [2021-03-25 12:25:53,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:53,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:53,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677374172] [2021-03-25 12:25:53,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:53,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:53,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:53,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:53,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:53,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 468 transitions, 12079 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:53,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:53,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:53,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:53,760 INFO L129 PetriNetUnfolder]: 396/972 cut-off events. [2021-03-25 12:25:53,761 INFO L130 PetriNetUnfolder]: For 74346/74413 co-relation queries the response was YES. [2021-03-25 12:25:53,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15346 conditions, 972 events. 396/972 cut-off events. For 74346/74413 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6776 event pairs, 31 based on Foata normal form. 48/1020 useless extension candidates. Maximal degree in co-relation 15180. Up to 649 conditions per place. [2021-03-25 12:25:53,774 INFO L132 encePairwiseOnDemand]: 131/145 looper letters, 302 selfloop transitions, 176 changer transitions 2/488 dead transitions. [2021-03-25 12:25:53,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 488 transitions, 14177 flow [2021-03-25 12:25:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:25:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:25:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 506 transitions. [2021-03-25 12:25:53,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21810344827586206 [2021-03-25 12:25:53,775 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 506 transitions. [2021-03-25 12:25:53,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 506 transitions. [2021-03-25 12:25:53,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:53,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 506 transitions. [2021-03-25 12:25:53,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 31.625) internal successors, (506), 16 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:53,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 145.0) internal successors, (2465), 17 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:53,777 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 145.0) internal successors, (2465), 17 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:53,777 INFO L185 Difference]: Start difference. First operand has 365 places, 468 transitions, 12079 flow. Second operand 16 states and 506 transitions. [2021-03-25 12:25:53,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 488 transitions, 14177 flow [2021-03-25 12:25:54,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 488 transitions, 14137 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-25 12:25:54,031 INFO L241 Difference]: Finished difference. Result has 373 places, 478 transitions, 13156 flow [2021-03-25 12:25:54,031 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12039, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13156, PETRI_PLACES=373, PETRI_TRANSITIONS=478} [2021-03-25 12:25:54,031 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 326 predicate places. [2021-03-25 12:25:54,031 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:54,031 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 478 transitions, 13156 flow [2021-03-25 12:25:54,031 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 478 transitions, 13156 flow [2021-03-25 12:25:54,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 478 transitions, 13156 flow [2021-03-25 12:25:54,178 INFO L129 PetriNetUnfolder]: 380/950 cut-off events. [2021-03-25 12:25:54,178 INFO L130 PetriNetUnfolder]: For 76327/76363 co-relation queries the response was YES. [2021-03-25 12:25:54,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14632 conditions, 950 events. 380/950 cut-off events. For 76327/76363 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6765 event pairs, 37 based on Foata normal form. 16/966 useless extension candidates. Maximal degree in co-relation 14452. Up to 338 conditions per place. [2021-03-25 12:25:54,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 822 [2021-03-25 12:25:54,221 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:54,221 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:54,221 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 190 [2021-03-25 12:25:54,221 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 478 transitions, 13156 flow [2021-03-25 12:25:54,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:54,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:54,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:54,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2021-03-25 12:25:54,222 INFO L428 AbstractCegarLoop]: === Iteration 568 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:54,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:54,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1951805206, now seen corresponding path program 43 times [2021-03-25 12:25:54,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:54,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404368461] [2021-03-25 12:25:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:54,227 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:54,232 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:54,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:54,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:54,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:54,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:54,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:54,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:54,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:54,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:54,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:54,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:54,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:54,338 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:54,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:54,362 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:54,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:54,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404368461] [2021-03-25 12:25:54,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:54,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:54,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034933231] [2021-03-25 12:25:54,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:54,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:54,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:54,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:54,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 145 [2021-03-25 12:25:54,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 478 transitions, 13156 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:54,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:54,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 145 [2021-03-25 12:25:54,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:54,998 INFO L129 PetriNetUnfolder]: 394/983 cut-off events. [2021-03-25 12:25:54,999 INFO L130 PetriNetUnfolder]: For 77965/78032 co-relation queries the response was YES. [2021-03-25 12:25:55,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15747 conditions, 983 events. 394/983 cut-off events. For 77965/78032 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6921 event pairs, 48 based on Foata normal form. 18/1000 useless extension candidates. Maximal degree in co-relation 15572. Up to 764 conditions per place. [2021-03-25 12:25:55,012 INFO L132 encePairwiseOnDemand]: 131/145 looper letters, 422 selfloop transitions, 58 changer transitions 3/491 dead transitions. [2021-03-25 12:25:55,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 491 transitions, 14705 flow [2021-03-25 12:25:55,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 422 transitions. [2021-03-25 12:25:55,014 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20788177339901479 [2021-03-25 12:25:55,014 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 422 transitions. [2021-03-25 12:25:55,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 422 transitions. [2021-03-25 12:25:55,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:55,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 422 transitions. [2021-03-25 12:25:55,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.142857142857142) internal successors, (422), 14 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:55,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 145.0) internal successors, (2175), 15 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:55,015 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 145.0) internal successors, (2175), 15 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:55,015 INFO L185 Difference]: Start difference. First operand has 373 places, 478 transitions, 13156 flow. Second operand 14 states and 422 transitions. [2021-03-25 12:25:55,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 491 transitions, 14705 flow [2021-03-25 12:25:55,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 491 transitions, 14107 flow, removed 224 selfloop flow, removed 9 redundant places. [2021-03-25 12:25:55,310 INFO L241 Difference]: Finished difference. Result has 380 places, 479 transitions, 12779 flow [2021-03-25 12:25:55,311 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=12564, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12779, PETRI_PLACES=380, PETRI_TRANSITIONS=479} [2021-03-25 12:25:55,311 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 333 predicate places. [2021-03-25 12:25:55,311 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:55,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 479 transitions, 12779 flow [2021-03-25 12:25:55,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 479 transitions, 12779 flow [2021-03-25 12:25:55,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 479 transitions, 12779 flow [2021-03-25 12:25:55,458 INFO L129 PetriNetUnfolder]: 379/965 cut-off events. [2021-03-25 12:25:55,458 INFO L130 PetriNetUnfolder]: For 73229/73315 co-relation queries the response was YES. [2021-03-25 12:25:55,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14467 conditions, 965 events. 379/965 cut-off events. For 73229/73315 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6971 event pairs, 25 based on Foata normal form. 7/969 useless extension candidates. Maximal degree in co-relation 14293. Up to 333 conditions per place. [2021-03-25 12:25:55,475 INFO L142 LiptonReduction]: Number of co-enabled transitions 828 [2021-03-25 12:25:55,556 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:25:55,556 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:25:55,557 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 245 [2021-03-25 12:25:55,557 INFO L480 AbstractCegarLoop]: Abstraction has has 378 places, 478 transitions, 12769 flow [2021-03-25 12:25:55,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:55,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:55,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:55,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2021-03-25 12:25:55,557 INFO L428 AbstractCegarLoop]: === Iteration 569 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:55,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:55,557 INFO L82 PathProgramCache]: Analyzing trace with hash 236377970, now seen corresponding path program 44 times [2021-03-25 12:25:55,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:55,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632132474] [2021-03-25 12:25:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:55,567 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:55,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:55,577 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:55,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:55,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:55,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:55,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:55,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:55,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:55,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:55,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:55,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:55,668 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:55,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:55,692 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:55,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:55,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632132474] [2021-03-25 12:25:55,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:55,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:55,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599769546] [2021-03-25 12:25:55,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:55,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:55,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:55,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:55,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 146 [2021-03-25 12:25:55,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 478 transitions, 12769 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:55,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:55,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 146 [2021-03-25 12:25:55,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:56,270 INFO L129 PetriNetUnfolder]: 391/984 cut-off events. [2021-03-25 12:25:56,270 INFO L130 PetriNetUnfolder]: For 74338/74405 co-relation queries the response was YES. [2021-03-25 12:25:56,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15451 conditions, 984 events. 391/984 cut-off events. For 74338/74405 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6973 event pairs, 50 based on Foata normal form. 18/1001 useless extension candidates. Maximal degree in co-relation 15273. Up to 782 conditions per place. [2021-03-25 12:25:56,284 INFO L132 encePairwiseOnDemand]: 133/146 looper letters, 443 selfloop transitions, 33 changer transitions 3/487 dead transitions. [2021-03-25 12:25:56,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 487 transitions, 14155 flow [2021-03-25 12:25:56,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 413 transitions. [2021-03-25 12:25:56,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20205479452054795 [2021-03-25 12:25:56,286 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 413 transitions. [2021-03-25 12:25:56,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 413 transitions. [2021-03-25 12:25:56,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:56,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 413 transitions. [2021-03-25 12:25:56,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.5) internal successors, (413), 14 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:56,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 146.0) internal successors, (2190), 15 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:56,287 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 146.0) internal successors, (2190), 15 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:56,287 INFO L185 Difference]: Start difference. First operand has 378 places, 478 transitions, 12769 flow. Second operand 14 states and 413 transitions. [2021-03-25 12:25:56,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 487 transitions, 14155 flow [2021-03-25 12:25:56,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 487 transitions, 13922 flow, removed 69 selfloop flow, removed 11 redundant places. [2021-03-25 12:25:56,593 INFO L241 Difference]: Finished difference. Result has 382 places, 478 transitions, 12663 flow [2021-03-25 12:25:56,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=12538, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12663, PETRI_PLACES=382, PETRI_TRANSITIONS=478} [2021-03-25 12:25:56,593 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 335 predicate places. [2021-03-25 12:25:56,593 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:56,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 382 places, 478 transitions, 12663 flow [2021-03-25 12:25:56,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 382 places, 478 transitions, 12663 flow [2021-03-25 12:25:56,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 381 places, 478 transitions, 12663 flow [2021-03-25 12:25:56,759 INFO L129 PetriNetUnfolder]: 374/952 cut-off events. [2021-03-25 12:25:56,760 INFO L130 PetriNetUnfolder]: For 72344/72380 co-relation queries the response was YES. [2021-03-25 12:25:56,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14295 conditions, 952 events. 374/952 cut-off events. For 72344/72380 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6857 event pairs, 38 based on Foata normal form. 16/967 useless extension candidates. Maximal degree in co-relation 14115. Up to 327 conditions per place. [2021-03-25 12:25:56,778 INFO L142 LiptonReduction]: Number of co-enabled transitions 826 [2021-03-25 12:25:56,857 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 12:25:56,857 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 12:25:56,857 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 264 [2021-03-25 12:25:56,857 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 477 transitions, 12651 flow [2021-03-25 12:25:56,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:56,858 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:56,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:56,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2021-03-25 12:25:56,858 INFO L428 AbstractCegarLoop]: === Iteration 570 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:56,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:56,858 INFO L82 PathProgramCache]: Analyzing trace with hash 983852086, now seen corresponding path program 1 times [2021-03-25 12:25:56,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:56,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872587672] [2021-03-25 12:25:56,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:56,863 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:56,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:56,868 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:56,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:56,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:56,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:56,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:56,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:56,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:56,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:56,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:56,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:56,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:56,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:56,938 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:56,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:56,954 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:56,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:56,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872587672] [2021-03-25 12:25:56,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:56,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:56,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93172288] [2021-03-25 12:25:56,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:56,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:56,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:56,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:56,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 147 [2021-03-25 12:25:56,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 477 transitions, 12651 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:56,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:56,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 147 [2021-03-25 12:25:56,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:57,634 INFO L129 PetriNetUnfolder]: 391/979 cut-off events. [2021-03-25 12:25:57,634 INFO L130 PetriNetUnfolder]: For 75505/75572 co-relation queries the response was YES. [2021-03-25 12:25:57,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15374 conditions, 979 events. 391/979 cut-off events. For 75505/75572 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6891 event pairs, 46 based on Foata normal form. 38/1016 useless extension candidates. Maximal degree in co-relation 15196. Up to 716 conditions per place. [2021-03-25 12:25:57,648 INFO L132 encePairwiseOnDemand]: 133/147 looper letters, 351 selfloop transitions, 122 changer transitions 4/485 dead transitions. [2021-03-25 12:25:57,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 485 transitions, 13956 flow [2021-03-25 12:25:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:25:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:25:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 501 transitions. [2021-03-25 12:25:57,650 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21301020408163265 [2021-03-25 12:25:57,650 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 501 transitions. [2021-03-25 12:25:57,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 501 transitions. [2021-03-25 12:25:57,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:57,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 501 transitions. [2021-03-25 12:25:57,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 31.3125) internal successors, (501), 16 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:57,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 147.0) internal successors, (2499), 17 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:57,651 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 147.0) internal successors, (2499), 17 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:57,651 INFO L185 Difference]: Start difference. First operand has 380 places, 477 transitions, 12651 flow. Second operand 16 states and 501 transitions. [2021-03-25 12:25:57,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 485 transitions, 13956 flow [2021-03-25 12:25:57,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 485 transitions, 13739 flow, removed 66 selfloop flow, removed 13 redundant places. [2021-03-25 12:25:57,943 INFO L241 Difference]: Finished difference. Result has 383 places, 474 transitions, 12677 flow [2021-03-25 12:25:57,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=12444, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=12677, PETRI_PLACES=383, PETRI_TRANSITIONS=474} [2021-03-25 12:25:57,943 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 336 predicate places. [2021-03-25 12:25:57,943 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:57,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 383 places, 474 transitions, 12677 flow [2021-03-25 12:25:57,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 383 places, 474 transitions, 12677 flow [2021-03-25 12:25:57,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 474 transitions, 12677 flow [2021-03-25 12:25:58,085 INFO L129 PetriNetUnfolder]: 376/960 cut-off events. [2021-03-25 12:25:58,085 INFO L130 PetriNetUnfolder]: For 70009/70067 co-relation queries the response was YES. [2021-03-25 12:25:58,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14240 conditions, 960 events. 376/960 cut-off events. For 70009/70067 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6982 event pairs, 33 based on Foata normal form. 11/965 useless extension candidates. Maximal degree in co-relation 14059. Up to 326 conditions per place. [2021-03-25 12:25:58,101 INFO L142 LiptonReduction]: Number of co-enabled transitions 812 [2021-03-25 12:25:58,126 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:58,126 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:58,126 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 183 [2021-03-25 12:25:58,126 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 474 transitions, 12677 flow [2021-03-25 12:25:58,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:58,126 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:58,126 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:58,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2021-03-25 12:25:58,126 INFO L428 AbstractCegarLoop]: === Iteration 571 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:58,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:58,126 INFO L82 PathProgramCache]: Analyzing trace with hash -274814993, now seen corresponding path program 1 times [2021-03-25 12:25:58,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:58,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864833881] [2021-03-25 12:25:58,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:58,131 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:58,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:58,137 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:58,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:58,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:58,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:58,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:58,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:58,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:58,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:58,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:58,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:58,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:58,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:58,205 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:25:58,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:58,222 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:58,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:58,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:58,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864833881] [2021-03-25 12:25:58,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:58,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:25:58,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978316234] [2021-03-25 12:25:58,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:25:58,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:58,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:25:58,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:25:58,225 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 147 [2021-03-25 12:25:58,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 474 transitions, 12677 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:58,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:58,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 147 [2021-03-25 12:25:58,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:58,727 INFO L129 PetriNetUnfolder]: 391/968 cut-off events. [2021-03-25 12:25:58,727 INFO L130 PetriNetUnfolder]: For 72058/72217 co-relation queries the response was YES. [2021-03-25 12:25:58,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15280 conditions, 968 events. 391/968 cut-off events. For 72058/72217 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6808 event pairs, 51 based on Foata normal form. 45/1012 useless extension candidates. Maximal degree in co-relation 15104. Up to 764 conditions per place. [2021-03-25 12:25:58,740 INFO L132 encePairwiseOnDemand]: 135/147 looper letters, 413 selfloop transitions, 51 changer transitions 5/477 dead transitions. [2021-03-25 12:25:58,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 477 transitions, 13815 flow [2021-03-25 12:25:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:25:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:25:58,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 416 transitions. [2021-03-25 12:25:58,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2021379980563654 [2021-03-25 12:25:58,742 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 416 transitions. [2021-03-25 12:25:58,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 416 transitions. [2021-03-25 12:25:58,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:25:58,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 416 transitions. [2021-03-25 12:25:58,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.714285714285715) internal successors, (416), 14 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:58,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 147.0) internal successors, (2205), 15 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:58,743 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 147.0) internal successors, (2205), 15 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:58,743 INFO L185 Difference]: Start difference. First operand has 380 places, 474 transitions, 12677 flow. Second operand 14 states and 416 transitions. [2021-03-25 12:25:58,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 477 transitions, 13815 flow [2021-03-25 12:25:59,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 477 transitions, 13578 flow, removed 26 selfloop flow, removed 11 redundant places. [2021-03-25 12:25:59,030 INFO L241 Difference]: Finished difference. Result has 383 places, 469 transitions, 12494 flow [2021-03-25 12:25:59,030 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=12444, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12494, PETRI_PLACES=383, PETRI_TRANSITIONS=469} [2021-03-25 12:25:59,030 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 336 predicate places. [2021-03-25 12:25:59,030 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:25:59,030 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 383 places, 469 transitions, 12494 flow [2021-03-25 12:25:59,030 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 383 places, 469 transitions, 12494 flow [2021-03-25 12:25:59,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 469 transitions, 12494 flow [2021-03-25 12:25:59,169 INFO L129 PetriNetUnfolder]: 376/931 cut-off events. [2021-03-25 12:25:59,169 INFO L130 PetriNetUnfolder]: For 70604/70700 co-relation queries the response was YES. [2021-03-25 12:25:59,177 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14001 conditions, 931 events. 376/931 cut-off events. For 70604/70700 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6585 event pairs, 35 based on Foata normal form. 18/949 useless extension candidates. Maximal degree in co-relation 13823. Up to 325 conditions per place. [2021-03-25 12:25:59,186 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:25:59,210 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:25:59,210 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:25:59,210 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-25 12:25:59,210 INFO L480 AbstractCegarLoop]: Abstraction has has 376 places, 469 transitions, 12494 flow [2021-03-25 12:25:59,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:59,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:25:59,210 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:25:59,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2021-03-25 12:25:59,210 INFO L428 AbstractCegarLoop]: === Iteration 572 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:25:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:25:59,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1277793226, now seen corresponding path program 45 times [2021-03-25 12:25:59,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:25:59,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312897982] [2021-03-25 12:25:59,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:25:59,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:25:59,215 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:25:59,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:25:59,221 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:25:59,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:25:59,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:59,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:59,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:59,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:59,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:59,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:59,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:59,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:59,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:25:59,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:25:59,303 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:25:59,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:25:59,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:25:59,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:25:59,349 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:25:59,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:25:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:25:59,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312897982] [2021-03-25 12:25:59,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:25:59,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:25:59,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325117308] [2021-03-25 12:25:59,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:25:59,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:25:59,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:25:59,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:25:59,353 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 147 [2021-03-25 12:25:59,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 469 transitions, 12494 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:25:59,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:25:59,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 147 [2021-03-25 12:25:59,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:25:59,987 INFO L129 PetriNetUnfolder]: 396/977 cut-off events. [2021-03-25 12:25:59,987 INFO L130 PetriNetUnfolder]: For 73371/73438 co-relation queries the response was YES. [2021-03-25 12:25:59,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15446 conditions, 977 events. 396/977 cut-off events. For 73371/73438 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6789 event pairs, 47 based on Foata normal form. 28/1004 useless extension candidates. Maximal degree in co-relation 15271. Up to 775 conditions per place. [2021-03-25 12:25:59,999 INFO L132 encePairwiseOnDemand]: 134/147 looper letters, 423 selfloop transitions, 52 changer transitions 2/485 dead transitions. [2021-03-25 12:25:59,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 485 transitions, 14229 flow [2021-03-25 12:26:00,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:26:00,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:26:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 473 transitions. [2021-03-25 12:26:00,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20110544217687074 [2021-03-25 12:26:00,001 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 473 transitions. [2021-03-25 12:26:00,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 473 transitions. [2021-03-25 12:26:00,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:00,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 473 transitions. [2021-03-25 12:26:00,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 29.5625) internal successors, (473), 16 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:00,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 147.0) internal successors, (2499), 17 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:00,002 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 147.0) internal successors, (2499), 17 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:00,002 INFO L185 Difference]: Start difference. First operand has 376 places, 469 transitions, 12494 flow. Second operand 16 states and 473 transitions. [2021-03-25 12:26:00,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 485 transitions, 14229 flow [2021-03-25 12:26:00,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 485 transitions, 14091 flow, removed 12 selfloop flow, removed 13 redundant places. [2021-03-25 12:26:00,265 INFO L241 Difference]: Finished difference. Result has 384 places, 481 transitions, 13089 flow [2021-03-25 12:26:00,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=12364, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13089, PETRI_PLACES=384, PETRI_TRANSITIONS=481} [2021-03-25 12:26:00,265 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 337 predicate places. [2021-03-25 12:26:00,265 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:00,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 384 places, 481 transitions, 13089 flow [2021-03-25 12:26:00,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 384 places, 481 transitions, 13089 flow [2021-03-25 12:26:00,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 383 places, 481 transitions, 13089 flow [2021-03-25 12:26:00,411 INFO L129 PetriNetUnfolder]: 379/954 cut-off events. [2021-03-25 12:26:00,411 INFO L130 PetriNetUnfolder]: For 74448/74488 co-relation queries the response was YES. [2021-03-25 12:26:00,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14493 conditions, 954 events. 379/954 cut-off events. For 74448/74488 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6859 event pairs, 24 based on Foata normal form. 8/962 useless extension candidates. Maximal degree in co-relation 14318. Up to 336 conditions per place. [2021-03-25 12:26:00,427 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:00,547 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:00,548 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 12:26:00,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 283 [2021-03-25 12:26:00,548 INFO L480 AbstractCegarLoop]: Abstraction has has 383 places, 481 transitions, 13202 flow [2021-03-25 12:26:00,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:00,548 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:00,548 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:00,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2021-03-25 12:26:00,548 INFO L428 AbstractCegarLoop]: === Iteration 573 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:00,548 INFO L82 PathProgramCache]: Analyzing trace with hash 333777889, now seen corresponding path program 207 times [2021-03-25 12:26:00,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:00,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788546603] [2021-03-25 12:26:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:00,560 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:00,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:00,569 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:00,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:00,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:00,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:00,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:00,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:00,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:00,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:00,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:00,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:00,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:00,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:00,638 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:00,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:00,654 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:00,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:00,658 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:00,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:00,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788546603] [2021-03-25 12:26:00,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:00,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:26:00,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497592568] [2021-03-25 12:26:00,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:26:00,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:00,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:26:00,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:26:00,661 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:00,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 481 transitions, 13202 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:00,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:00,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:00,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:01,180 INFO L129 PetriNetUnfolder]: 396/980 cut-off events. [2021-03-25 12:26:01,180 INFO L130 PetriNetUnfolder]: For 74014/74081 co-relation queries the response was YES. [2021-03-25 12:26:01,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15591 conditions, 980 events. 396/980 cut-off events. For 74014/74081 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6852 event pairs, 48 based on Foata normal form. 27/1007 useless extension candidates. Maximal degree in co-relation 15412. Up to 781 conditions per place. [2021-03-25 12:26:01,193 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 435 selfloop transitions, 39 changer transitions 4/486 dead transitions. [2021-03-25 12:26:01,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 486 transitions, 14284 flow [2021-03-25 12:26:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:26:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:26:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2021-03-25 12:26:01,195 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20134228187919462 [2021-03-25 12:26:01,195 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 330 transitions. [2021-03-25 12:26:01,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 330 transitions. [2021-03-25 12:26:01,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:01,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 330 transitions. [2021-03-25 12:26:01,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 30.0) internal successors, (330), 11 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:01,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:01,196 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:01,196 INFO L185 Difference]: Start difference. First operand has 383 places, 481 transitions, 13202 flow. Second operand 11 states and 330 transitions. [2021-03-25 12:26:01,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 486 transitions, 14284 flow [2021-03-25 12:26:01,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 486 transitions, 13828 flow, removed 207 selfloop flow, removed 8 redundant places. [2021-03-25 12:26:01,476 INFO L241 Difference]: Finished difference. Result has 387 places, 481 transitions, 12861 flow [2021-03-25 12:26:01,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=12746, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12861, PETRI_PLACES=387, PETRI_TRANSITIONS=481} [2021-03-25 12:26:01,476 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 340 predicate places. [2021-03-25 12:26:01,476 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:01,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 481 transitions, 12861 flow [2021-03-25 12:26:01,477 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 481 transitions, 12861 flow [2021-03-25 12:26:01,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 481 transitions, 12861 flow [2021-03-25 12:26:01,619 INFO L129 PetriNetUnfolder]: 376/943 cut-off events. [2021-03-25 12:26:01,619 INFO L130 PetriNetUnfolder]: For 76269/76295 co-relation queries the response was YES. [2021-03-25 12:26:01,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14299 conditions, 943 events. 376/943 cut-off events. For 76269/76295 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6720 event pairs, 29 based on Foata normal form. 14/957 useless extension candidates. Maximal degree in co-relation 14113. Up to 330 conditions per place. [2021-03-25 12:26:01,635 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:01,660 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:01,660 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:01,660 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 184 [2021-03-25 12:26:01,660 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 481 transitions, 12861 flow [2021-03-25 12:26:01,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:01,661 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:01,661 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:01,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2021-03-25 12:26:01,661 INFO L428 AbstractCegarLoop]: === Iteration 574 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:01,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:01,661 INFO L82 PathProgramCache]: Analyzing trace with hash -380189475, now seen corresponding path program 1 times [2021-03-25 12:26:01,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:01,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076804052] [2021-03-25 12:26:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:01,666 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:01,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:01,671 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:01,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:01,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:01,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:01,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:01,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:01,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:01,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:01,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:01,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:01,725 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 12:26:01,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:01,728 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:26:01,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:01,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:26:01,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:26:01,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:01,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076804052] [2021-03-25 12:26:01,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:01,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:26:01,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787920770] [2021-03-25 12:26:01,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:26:01,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:01,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:26:01,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:26:01,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:01,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 481 transitions, 12861 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:01,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:01,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:01,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:02,272 INFO L129 PetriNetUnfolder]: 393/976 cut-off events. [2021-03-25 12:26:02,272 INFO L130 PetriNetUnfolder]: For 71948/72015 co-relation queries the response was YES. [2021-03-25 12:26:02,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15380 conditions, 976 events. 393/976 cut-off events. For 71948/72015 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6842 event pairs, 48 based on Foata normal form. 28/1003 useless extension candidates. Maximal degree in co-relation 15189. Up to 766 conditions per place. [2021-03-25 12:26:02,285 INFO L132 encePairwiseOnDemand]: 134/149 looper letters, 415 selfloop transitions, 61 changer transitions 2/486 dead transitions. [2021-03-25 12:26:02,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 486 transitions, 13983 flow [2021-03-25 12:26:02,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:26:02,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:26:02,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 370 transitions. [2021-03-25 12:26:02,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20693512304250558 [2021-03-25 12:26:02,287 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 370 transitions. [2021-03-25 12:26:02,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 370 transitions. [2021-03-25 12:26:02,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:02,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 370 transitions. [2021-03-25 12:26:02,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.833333333333332) internal successors, (370), 12 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:02,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:02,288 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:02,288 INFO L185 Difference]: Start difference. First operand has 386 places, 481 transitions, 12861 flow. Second operand 12 states and 370 transitions. [2021-03-25 12:26:02,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 486 transitions, 13983 flow [2021-03-25 12:26:02,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 486 transitions, 13894 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-03-25 12:26:02,565 INFO L241 Difference]: Finished difference. Result has 390 places, 480 transitions, 12856 flow [2021-03-25 12:26:02,565 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=12772, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12856, PETRI_PLACES=390, PETRI_TRANSITIONS=480} [2021-03-25 12:26:02,565 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 343 predicate places. [2021-03-25 12:26:02,565 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:02,565 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 480 transitions, 12856 flow [2021-03-25 12:26:02,565 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 480 transitions, 12856 flow [2021-03-25 12:26:02,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 480 transitions, 12856 flow [2021-03-25 12:26:02,711 INFO L129 PetriNetUnfolder]: 373/940 cut-off events. [2021-03-25 12:26:02,711 INFO L130 PetriNetUnfolder]: For 75371/75391 co-relation queries the response was YES. [2021-03-25 12:26:02,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14259 conditions, 940 events. 373/940 cut-off events. For 75371/75391 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6711 event pairs, 36 based on Foata normal form. 13/953 useless extension candidates. Maximal degree in co-relation 14088. Up to 328 conditions per place. [2021-03-25 12:26:02,727 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:02,753 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:02,753 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:02,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 188 [2021-03-25 12:26:02,753 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 480 transitions, 12856 flow [2021-03-25 12:26:02,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:02,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:02,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:02,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2021-03-25 12:26:02,753 INFO L428 AbstractCegarLoop]: === Iteration 575 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:02,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1618534296, now seen corresponding path program 1 times [2021-03-25 12:26:02,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:02,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403576455] [2021-03-25 12:26:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:02,758 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:02,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:02,764 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:02,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:02,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:02,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:02,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:02,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:02,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:02,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:02,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:02,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:02,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:02,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:26:02,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:02,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:02,840 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:26:02,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:26:02,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:02,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403576455] [2021-03-25 12:26:02,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:02,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 12:26:02,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028690354] [2021-03-25 12:26:02,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 12:26:02,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:02,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 12:26:02,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-25 12:26:02,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:02,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 480 transitions, 12856 flow. Second operand has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:02,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:02,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:02,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:03,410 INFO L129 PetriNetUnfolder]: 412/1004 cut-off events. [2021-03-25 12:26:03,410 INFO L130 PetriNetUnfolder]: For 76405/76451 co-relation queries the response was YES. [2021-03-25 12:26:03,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16169 conditions, 1004 events. 412/1004 cut-off events. For 76405/76451 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7017 event pairs, 51 based on Foata normal form. 28/1032 useless extension candidates. Maximal degree in co-relation 15995. Up to 793 conditions per place. [2021-03-25 12:26:03,424 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 424 selfloop transitions, 67 changer transitions 2/501 dead transitions. [2021-03-25 12:26:03,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 501 transitions, 14739 flow [2021-03-25 12:26:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:26:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:26:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 369 transitions. [2021-03-25 12:26:03,425 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2063758389261745 [2021-03-25 12:26:03,425 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 369 transitions. [2021-03-25 12:26:03,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 369 transitions. [2021-03-25 12:26:03,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:03,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 369 transitions. [2021-03-25 12:26:03,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.75) internal successors, (369), 12 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:03,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:03,426 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:03,426 INFO L185 Difference]: Start difference. First operand has 389 places, 480 transitions, 12856 flow. Second operand 12 states and 369 transitions. [2021-03-25 12:26:03,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 501 transitions, 14739 flow [2021-03-25 12:26:03,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 501 transitions, 14630 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-25 12:26:03,732 INFO L241 Difference]: Finished difference. Result has 393 places, 495 transitions, 13594 flow [2021-03-25 12:26:03,732 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=12747, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13594, PETRI_PLACES=393, PETRI_TRANSITIONS=495} [2021-03-25 12:26:03,732 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 346 predicate places. [2021-03-25 12:26:03,732 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:03,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 495 transitions, 13594 flow [2021-03-25 12:26:03,732 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 495 transitions, 13594 flow [2021-03-25 12:26:03,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 495 transitions, 13594 flow [2021-03-25 12:26:03,885 INFO L129 PetriNetUnfolder]: 397/975 cut-off events. [2021-03-25 12:26:03,885 INFO L130 PetriNetUnfolder]: For 84279/84424 co-relation queries the response was YES. [2021-03-25 12:26:03,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15153 conditions, 975 events. 397/975 cut-off events. For 84279/84424 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6965 event pairs, 38 based on Foata normal form. 16/985 useless extension candidates. Maximal degree in co-relation 14967. Up to 357 conditions per place. [2021-03-25 12:26:03,903 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:03,929 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:03,929 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:03,929 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 197 [2021-03-25 12:26:03,930 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 495 transitions, 13594 flow [2021-03-25 12:26:03,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.11111111111111) internal successors, (244), 9 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:03,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:03,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:03,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2021-03-25 12:26:03,930 INFO L428 AbstractCegarLoop]: === Iteration 576 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:03,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:03,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1617939650, now seen corresponding path program 2 times [2021-03-25 12:26:03,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:03,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656076337] [2021-03-25 12:26:03,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:03,935 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:03,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:03,941 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:03,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:03,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:03,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:03,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:03,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:03,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:03,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:03,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:03,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 12:26:04,010 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 12:26:04,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:04,025 INFO L142 QuantifierPusher]: treesize reduction 9, result has 57.1 percent of original size [2021-03-25 12:26:04,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 12:26:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:04,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656076337] [2021-03-25 12:26:04,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:04,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:26:04,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890040956] [2021-03-25 12:26:04,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:26:04,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:04,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:26:04,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:26:04,028 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:04,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 495 transitions, 13594 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:04,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:04,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:04,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:04,621 INFO L129 PetriNetUnfolder]: 411/1003 cut-off events. [2021-03-25 12:26:04,622 INFO L130 PetriNetUnfolder]: For 77547/77593 co-relation queries the response was YES. [2021-03-25 12:26:04,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16241 conditions, 1003 events. 411/1003 cut-off events. For 77547/77593 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6988 event pairs, 50 based on Foata normal form. 28/1031 useless extension candidates. Maximal degree in co-relation 16060. Up to 769 conditions per place. [2021-03-25 12:26:04,636 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 401 selfloop transitions, 89 changer transitions 3/501 dead transitions. [2021-03-25 12:26:04,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 501 transitions, 14810 flow [2021-03-25 12:26:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:26:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:26:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 423 transitions. [2021-03-25 12:26:04,637 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2027804410354746 [2021-03-25 12:26:04,637 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 423 transitions. [2021-03-25 12:26:04,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 423 transitions. [2021-03-25 12:26:04,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:04,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 423 transitions. [2021-03-25 12:26:04,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.214285714285715) internal successors, (423), 14 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:04,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:04,639 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:04,639 INFO L185 Difference]: Start difference. First operand has 393 places, 495 transitions, 13594 flow. Second operand 14 states and 423 transitions. [2021-03-25 12:26:04,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 501 transitions, 14810 flow [2021-03-25 12:26:04,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 501 transitions, 14674 flow, removed 26 selfloop flow, removed 8 redundant places. [2021-03-25 12:26:04,959 INFO L241 Difference]: Finished difference. Result has 400 places, 493 transitions, 13625 flow [2021-03-25 12:26:04,959 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13458, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13625, PETRI_PLACES=400, PETRI_TRANSITIONS=493} [2021-03-25 12:26:04,959 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 353 predicate places. [2021-03-25 12:26:04,960 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:04,960 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 400 places, 493 transitions, 13625 flow [2021-03-25 12:26:04,960 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 400 places, 493 transitions, 13625 flow [2021-03-25 12:26:04,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 397 places, 493 transitions, 13625 flow [2021-03-25 12:26:05,114 INFO L129 PetriNetUnfolder]: 392/967 cut-off events. [2021-03-25 12:26:05,115 INFO L130 PetriNetUnfolder]: For 83172/83215 co-relation queries the response was YES. [2021-03-25 12:26:05,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15108 conditions, 967 events. 392/967 cut-off events. For 83172/83215 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6882 event pairs, 37 based on Foata normal form. 15/981 useless extension candidates. Maximal degree in co-relation 14934. Up to 350 conditions per place. [2021-03-25 12:26:05,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:05,159 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:05,159 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:05,159 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 199 [2021-03-25 12:26:05,159 INFO L480 AbstractCegarLoop]: Abstraction has has 397 places, 493 transitions, 13625 flow [2021-03-25 12:26:05,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:05,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:05,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:05,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2021-03-25 12:26:05,159 INFO L428 AbstractCegarLoop]: === Iteration 577 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:05,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1200878186, now seen corresponding path program 46 times [2021-03-25 12:26:05,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:05,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456391432] [2021-03-25 12:26:05,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:05,165 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:05,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:05,170 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:05,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:05,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:05,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:05,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:05,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:05,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:05,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:05,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:05,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:05,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:05,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:05,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:05,257 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:26:05,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:05,265 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:05,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:05,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456391432] [2021-03-25 12:26:05,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:05,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:26:05,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664171488] [2021-03-25 12:26:05,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:26:05,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:05,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:26:05,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:26:05,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:05,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 493 transitions, 13625 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:05,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:05,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:05,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:05,856 INFO L129 PetriNetUnfolder]: 413/1011 cut-off events. [2021-03-25 12:26:05,856 INFO L130 PetriNetUnfolder]: For 79052/79119 co-relation queries the response was YES. [2021-03-25 12:26:05,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16479 conditions, 1011 events. 413/1011 cut-off events. For 79052/79119 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7049 event pairs, 53 based on Foata normal form. 38/1048 useless extension candidates. Maximal degree in co-relation 16302. Up to 806 conditions per place. [2021-03-25 12:26:05,871 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 430 selfloop transitions, 60 changer transitions 2/500 dead transitions. [2021-03-25 12:26:05,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 500 transitions, 15026 flow [2021-03-25 12:26:05,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:26:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:26:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 395 transitions. [2021-03-25 12:26:05,872 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20392359318533815 [2021-03-25 12:26:05,872 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 395 transitions. [2021-03-25 12:26:05,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 395 transitions. [2021-03-25 12:26:05,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:05,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 395 transitions. [2021-03-25 12:26:05,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 30.384615384615383) internal successors, (395), 13 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:05,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:05,873 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:05,873 INFO L185 Difference]: Start difference. First operand has 397 places, 493 transitions, 13625 flow. Second operand 13 states and 395 transitions. [2021-03-25 12:26:05,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 500 transitions, 15026 flow [2021-03-25 12:26:06,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 500 transitions, 14883 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-03-25 12:26:06,202 INFO L241 Difference]: Finished difference. Result has 401 places, 497 transitions, 13877 flow [2021-03-25 12:26:06,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13482, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13877, PETRI_PLACES=401, PETRI_TRANSITIONS=497} [2021-03-25 12:26:06,202 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 354 predicate places. [2021-03-25 12:26:06,202 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:06,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 401 places, 497 transitions, 13877 flow [2021-03-25 12:26:06,202 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 401 places, 497 transitions, 13877 flow [2021-03-25 12:26:06,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 400 places, 497 transitions, 13877 flow [2021-03-25 12:26:06,382 INFO L129 PetriNetUnfolder]: 398/977 cut-off events. [2021-03-25 12:26:06,382 INFO L130 PetriNetUnfolder]: For 85607/85660 co-relation queries the response was YES. [2021-03-25 12:26:06,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15412 conditions, 977 events. 398/977 cut-off events. For 85607/85660 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6997 event pairs, 33 based on Foata normal form. 3/975 useless extension candidates. Maximal degree in co-relation 15223. Up to 357 conditions per place. [2021-03-25 12:26:06,400 INFO L142 LiptonReduction]: Number of co-enabled transitions 810 [2021-03-25 12:26:06,426 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:06,426 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:06,426 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 224 [2021-03-25 12:26:06,426 INFO L480 AbstractCegarLoop]: Abstraction has has 400 places, 497 transitions, 13877 flow [2021-03-25 12:26:06,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:06,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:06,426 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:06,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2021-03-25 12:26:06,426 INFO L428 AbstractCegarLoop]: === Iteration 578 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:06,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:06,426 INFO L82 PathProgramCache]: Analyzing trace with hash -945292574, now seen corresponding path program 47 times [2021-03-25 12:26:06,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:06,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130541553] [2021-03-25 12:26:06,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:06,432 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:06,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:06,437 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:06,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:06,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:06,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:06,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:06,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:06,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:06,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:06,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:06,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:06,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:06,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:06,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:06,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:06,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 12:26:06,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:06,540 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:06,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:06,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130541553] [2021-03-25 12:26:06,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:06,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:06,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114501104] [2021-03-25 12:26:06,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:06,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:06,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:06,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:06,544 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:06,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 497 transitions, 13877 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:06,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:06,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:06,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:07,159 INFO L129 PetriNetUnfolder]: 412/1009 cut-off events. [2021-03-25 12:26:07,159 INFO L130 PetriNetUnfolder]: For 83583/83629 co-relation queries the response was YES. [2021-03-25 12:26:07,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16470 conditions, 1009 events. 412/1009 cut-off events. For 83583/83629 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 7051 event pairs, 51 based on Foata normal form. 38/1047 useless extension candidates. Maximal degree in co-relation 16286. Up to 800 conditions per place. [2021-03-25 12:26:07,174 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 427 selfloop transitions, 65 changer transitions 2/502 dead transitions. [2021-03-25 12:26:07,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 502 transitions, 15155 flow [2021-03-25 12:26:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:26:07,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:26:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 422 transitions. [2021-03-25 12:26:07,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20230105465004794 [2021-03-25 12:26:07,176 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 422 transitions. [2021-03-25 12:26:07,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 422 transitions. [2021-03-25 12:26:07,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:07,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 422 transitions. [2021-03-25 12:26:07,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.142857142857142) internal successors, (422), 14 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:07,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:07,177 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:07,177 INFO L185 Difference]: Start difference. First operand has 400 places, 497 transitions, 13877 flow. Second operand 14 states and 422 transitions. [2021-03-25 12:26:07,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 502 transitions, 15155 flow [2021-03-25 12:26:07,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 502 transitions, 14925 flow, removed 77 selfloop flow, removed 9 redundant places. [2021-03-25 12:26:07,516 INFO L241 Difference]: Finished difference. Result has 407 places, 499 transitions, 13929 flow [2021-03-25 12:26:07,517 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13647, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13929, PETRI_PLACES=407, PETRI_TRANSITIONS=499} [2021-03-25 12:26:07,517 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 360 predicate places. [2021-03-25 12:26:07,517 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:07,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 407 places, 499 transitions, 13929 flow [2021-03-25 12:26:07,517 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 407 places, 499 transitions, 13929 flow [2021-03-25 12:26:07,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 499 transitions, 13929 flow [2021-03-25 12:26:07,673 INFO L129 PetriNetUnfolder]: 395/974 cut-off events. [2021-03-25 12:26:07,673 INFO L130 PetriNetUnfolder]: For 86548/86601 co-relation queries the response was YES. [2021-03-25 12:26:07,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15347 conditions, 974 events. 395/974 cut-off events. For 86548/86601 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6908 event pairs, 33 based on Foata normal form. 14/987 useless extension candidates. Maximal degree in co-relation 15155. Up to 353 conditions per place. [2021-03-25 12:26:07,690 INFO L142 LiptonReduction]: Number of co-enabled transitions 816 [2021-03-25 12:26:07,717 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:07,718 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:07,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 12:26:07,718 INFO L480 AbstractCegarLoop]: Abstraction has has 406 places, 499 transitions, 13929 flow [2021-03-25 12:26:07,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:07,718 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:07,718 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:07,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2021-03-25 12:26:07,718 INFO L428 AbstractCegarLoop]: === Iteration 579 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:07,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:07,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1531638036, now seen corresponding path program 48 times [2021-03-25 12:26:07,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:07,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77673589] [2021-03-25 12:26:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:07,723 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:07,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:07,729 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:07,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:07,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:07,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:07,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:07,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:07,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:07,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:07,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:07,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:07,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:07,801 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:07,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:07,817 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:07,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:07,835 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:07,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:07,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77673589] [2021-03-25 12:26:07,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:07,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:07,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230577413] [2021-03-25 12:26:07,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:07,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:07,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:07,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:07,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:07,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 499 transitions, 13929 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:07,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:07,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:07,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:08,509 INFO L129 PetriNetUnfolder]: 411/1012 cut-off events. [2021-03-25 12:26:08,509 INFO L130 PetriNetUnfolder]: For 86016/86083 co-relation queries the response was YES. [2021-03-25 12:26:08,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16598 conditions, 1012 events. 411/1012 cut-off events. For 86016/86083 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7076 event pairs, 39 based on Foata normal form. 47/1059 useless extension candidates. Maximal degree in co-relation 16411. Up to 774 conditions per place. [2021-03-25 12:26:08,524 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 411 selfloop transitions, 81 changer transitions 4/504 dead transitions. [2021-03-25 12:26:08,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 504 transitions, 15233 flow [2021-03-25 12:26:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:26:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:26:08,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 428 transitions. [2021-03-25 12:26:08,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20517737296260785 [2021-03-25 12:26:08,526 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 428 transitions. [2021-03-25 12:26:08,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 428 transitions. [2021-03-25 12:26:08,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:08,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 428 transitions. [2021-03-25 12:26:08,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.571428571428573) internal successors, (428), 14 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:08,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:08,527 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:08,527 INFO L185 Difference]: Start difference. First operand has 406 places, 499 transitions, 13929 flow. Second operand 14 states and 428 transitions. [2021-03-25 12:26:08,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 504 transitions, 15233 flow [2021-03-25 12:26:08,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 504 transitions, 14985 flow, removed 65 selfloop flow, removed 12 redundant places. [2021-03-25 12:26:08,887 INFO L241 Difference]: Finished difference. Result has 410 places, 498 transitions, 13860 flow [2021-03-25 12:26:08,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13685, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13860, PETRI_PLACES=410, PETRI_TRANSITIONS=498} [2021-03-25 12:26:08,887 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 363 predicate places. [2021-03-25 12:26:08,887 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:08,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 410 places, 498 transitions, 13860 flow [2021-03-25 12:26:08,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 410 places, 498 transitions, 13860 flow [2021-03-25 12:26:08,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 408 places, 498 transitions, 13860 flow [2021-03-25 12:26:09,047 INFO L129 PetriNetUnfolder]: 396/991 cut-off events. [2021-03-25 12:26:09,047 INFO L130 PetriNetUnfolder]: For 83679/83736 co-relation queries the response was YES. [2021-03-25 12:26:09,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15424 conditions, 991 events. 396/991 cut-off events. For 83679/83736 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 7127 event pairs, 49 based on Foata normal form. 14/1000 useless extension candidates. Maximal degree in co-relation 15240. Up to 348 conditions per place. [2021-03-25 12:26:09,065 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:26:09,093 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:09,093 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:09,093 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206 [2021-03-25 12:26:09,093 INFO L480 AbstractCegarLoop]: Abstraction has has 408 places, 498 transitions, 13860 flow [2021-03-25 12:26:09,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:09,093 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:09,093 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:09,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2021-03-25 12:26:09,093 INFO L428 AbstractCegarLoop]: === Iteration 580 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:09,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:09,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1812392871, now seen corresponding path program 208 times [2021-03-25 12:26:09,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:09,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624230296] [2021-03-25 12:26:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:09,099 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:09,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:09,104 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:09,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:09,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:09,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:09,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:09,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:09,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:09,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:09,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:09,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:09,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:09,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:09,180 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:09,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:09,196 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:09,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:09,200 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:09,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:09,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624230296] [2021-03-25 12:26:09,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:09,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:26:09,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793920702] [2021-03-25 12:26:09,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:26:09,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:09,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:26:09,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:26:09,203 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:09,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 498 transitions, 13860 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:09,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:09,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:09,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:09,673 INFO L129 PetriNetUnfolder]: 409/1007 cut-off events. [2021-03-25 12:26:09,673 INFO L130 PetriNetUnfolder]: For 86981/87048 co-relation queries the response was YES. [2021-03-25 12:26:09,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16569 conditions, 1007 events. 409/1007 cut-off events. For 86981/87048 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7049 event pairs, 52 based on Foata normal form. 18/1024 useless extension candidates. Maximal degree in co-relation 16381. Up to 825 conditions per place. [2021-03-25 12:26:09,687 INFO L132 encePairwiseOnDemand]: 138/149 looper letters, 471 selfloop transitions, 18 changer transitions 3/500 dead transitions. [2021-03-25 12:26:09,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 500 transitions, 14928 flow [2021-03-25 12:26:09,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:26:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:26:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 319 transitions. [2021-03-25 12:26:09,688 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19463087248322147 [2021-03-25 12:26:09,688 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 319 transitions. [2021-03-25 12:26:09,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 319 transitions. [2021-03-25 12:26:09,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:09,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 319 transitions. [2021-03-25 12:26:09,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:09,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:09,689 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:09,689 INFO L185 Difference]: Start difference. First operand has 408 places, 498 transitions, 13860 flow. Second operand 11 states and 319 transitions. [2021-03-25 12:26:09,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 500 transitions, 14928 flow [2021-03-25 12:26:10,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 500 transitions, 14728 flow, removed 23 selfloop flow, removed 14 redundant places. [2021-03-25 12:26:10,012 INFO L241 Difference]: Finished difference. Result has 406 places, 497 transitions, 13687 flow [2021-03-25 12:26:10,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13660, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13687, PETRI_PLACES=406, PETRI_TRANSITIONS=497} [2021-03-25 12:26:10,012 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 359 predicate places. [2021-03-25 12:26:10,012 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:10,012 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 497 transitions, 13687 flow [2021-03-25 12:26:10,012 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 497 transitions, 13687 flow [2021-03-25 12:26:10,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 405 places, 497 transitions, 13687 flow [2021-03-25 12:26:10,168 INFO L129 PetriNetUnfolder]: 392/972 cut-off events. [2021-03-25 12:26:10,168 INFO L130 PetriNetUnfolder]: For 85065/85103 co-relation queries the response was YES. [2021-03-25 12:26:10,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15327 conditions, 972 events. 392/972 cut-off events. For 85065/85103 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 6905 event pairs, 28 based on Foata normal form. 8/980 useless extension candidates. Maximal degree in co-relation 15135. Up to 350 conditions per place. [2021-03-25 12:26:10,185 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:26:10,212 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:10,212 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:10,212 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-25 12:26:10,212 INFO L480 AbstractCegarLoop]: Abstraction has has 405 places, 497 transitions, 13687 flow [2021-03-25 12:26:10,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:10,212 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:10,212 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:10,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2021-03-25 12:26:10,212 INFO L428 AbstractCegarLoop]: === Iteration 581 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:10,213 INFO L82 PathProgramCache]: Analyzing trace with hash 816460290, now seen corresponding path program 49 times [2021-03-25 12:26:10,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:10,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731736865] [2021-03-25 12:26:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:10,218 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:10,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:10,224 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:10,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:10,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:10,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:10,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:10,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:10,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:10,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:10,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:10,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:10,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:10,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:10,295 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:10,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:10,311 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:10,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:10,329 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:10,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:10,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731736865] [2021-03-25 12:26:10,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:10,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:10,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858580862] [2021-03-25 12:26:10,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:10,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:10,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:10,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:10,332 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:10,332 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 497 transitions, 13687 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:10,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:10,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:10,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:10,964 INFO L129 PetriNetUnfolder]: 408/1002 cut-off events. [2021-03-25 12:26:10,964 INFO L130 PetriNetUnfolder]: For 85194/85261 co-relation queries the response was YES. [2021-03-25 12:26:10,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16465 conditions, 1002 events. 408/1002 cut-off events. For 85194/85261 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6981 event pairs, 46 based on Foata normal form. 27/1029 useless extension candidates. Maximal degree in co-relation 16278. Up to 794 conditions per place. [2021-03-25 12:26:10,979 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 434 selfloop transitions, 59 changer transitions 3/504 dead transitions. [2021-03-25 12:26:10,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 504 transitions, 15083 flow [2021-03-25 12:26:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:26:10,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:26:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 423 transitions. [2021-03-25 12:26:10,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2027804410354746 [2021-03-25 12:26:10,981 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 423 transitions. [2021-03-25 12:26:10,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 423 transitions. [2021-03-25 12:26:10,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:10,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 423 transitions. [2021-03-25 12:26:10,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 30.214285714285715) internal successors, (423), 14 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:10,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:10,982 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:10,982 INFO L185 Difference]: Start difference. First operand has 405 places, 497 transitions, 13687 flow. Second operand 14 states and 423 transitions. [2021-03-25 12:26:10,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 504 transitions, 15083 flow [2021-03-25 12:26:11,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 504 transitions, 15021 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-03-25 12:26:11,329 INFO L241 Difference]: Finished difference. Result has 411 places, 497 transitions, 13835 flow [2021-03-25 12:26:11,329 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13625, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13835, PETRI_PLACES=411, PETRI_TRANSITIONS=497} [2021-03-25 12:26:11,329 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 364 predicate places. [2021-03-25 12:26:11,329 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:11,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 497 transitions, 13835 flow [2021-03-25 12:26:11,329 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 497 transitions, 13835 flow [2021-03-25 12:26:11,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 497 transitions, 13835 flow [2021-03-25 12:26:11,485 INFO L129 PetriNetUnfolder]: 393/980 cut-off events. [2021-03-25 12:26:11,485 INFO L130 PetriNetUnfolder]: For 86289/86335 co-relation queries the response was YES. [2021-03-25 12:26:11,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15391 conditions, 980 events. 393/980 cut-off events. For 86289/86335 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 7022 event pairs, 43 based on Foata normal form. 12/989 useless extension candidates. Maximal degree in co-relation 15207. Up to 349 conditions per place. [2021-03-25 12:26:11,503 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:26:11,529 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:11,529 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:11,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-25 12:26:11,530 INFO L480 AbstractCegarLoop]: Abstraction has has 409 places, 497 transitions, 13835 flow [2021-03-25 12:26:11,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:11,530 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:11,530 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:11,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2021-03-25 12:26:11,530 INFO L428 AbstractCegarLoop]: === Iteration 582 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:11,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1225816772, now seen corresponding path program 50 times [2021-03-25 12:26:11,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:11,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860585630] [2021-03-25 12:26:11,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:11,537 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:11,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:11,543 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:11,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:11,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:11,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:11,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:11,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:11,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:11,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:11,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:11,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:11,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:11,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:11,615 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:11,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:11,631 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:11,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:11,649 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:11,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:11,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860585630] [2021-03-25 12:26:11,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:11,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:11,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863691313] [2021-03-25 12:26:11,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:11,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:11,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:11,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:11,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:11,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 497 transitions, 13835 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:11,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:11,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:11,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:12,396 INFO L129 PetriNetUnfolder]: 411/1009 cut-off events. [2021-03-25 12:26:12,396 INFO L130 PetriNetUnfolder]: For 88914/88981 co-relation queries the response was YES. [2021-03-25 12:26:12,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16775 conditions, 1009 events. 411/1009 cut-off events. For 88914/88981 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 7064 event pairs, 47 based on Foata normal form. 28/1036 useless extension candidates. Maximal degree in co-relation 16587. Up to 756 conditions per place. [2021-03-25 12:26:12,411 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 375 selfloop transitions, 127 changer transitions 3/513 dead transitions. [2021-03-25 12:26:12,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 513 transitions, 15711 flow [2021-03-25 12:26:12,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 12:26:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 12:26:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 549 transitions. [2021-03-25 12:26:12,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20469798657718122 [2021-03-25 12:26:12,412 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 549 transitions. [2021-03-25 12:26:12,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 549 transitions. [2021-03-25 12:26:12,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:12,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 549 transitions. [2021-03-25 12:26:12,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 30.5) internal successors, (549), 18 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:12,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 149.0) internal successors, (2831), 19 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:12,414 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 149.0) internal successors, (2831), 19 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:12,414 INFO L185 Difference]: Start difference. First operand has 409 places, 497 transitions, 13835 flow. Second operand 18 states and 549 transitions. [2021-03-25 12:26:12,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 513 transitions, 15711 flow [2021-03-25 12:26:12,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 513 transitions, 15584 flow, removed 22 selfloop flow, removed 9 redundant places. [2021-03-25 12:26:12,756 INFO L241 Difference]: Finished difference. Result has 420 places, 507 transitions, 14505 flow [2021-03-25 12:26:12,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13708, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14505, PETRI_PLACES=420, PETRI_TRANSITIONS=507} [2021-03-25 12:26:12,757 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 373 predicate places. [2021-03-25 12:26:12,757 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:12,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 420 places, 507 transitions, 14505 flow [2021-03-25 12:26:12,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 420 places, 507 transitions, 14505 flow [2021-03-25 12:26:12,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 420 places, 507 transitions, 14505 flow [2021-03-25 12:26:12,941 INFO L129 PetriNetUnfolder]: 397/989 cut-off events. [2021-03-25 12:26:12,941 INFO L130 PetriNetUnfolder]: For 91305/91391 co-relation queries the response was YES. [2021-03-25 12:26:12,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15799 conditions, 989 events. 397/989 cut-off events. For 91305/91391 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 7133 event pairs, 39 based on Foata normal form. 12/994 useless extension candidates. Maximal degree in co-relation 15605. Up to 359 conditions per place. [2021-03-25 12:26:12,961 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-25 12:26:12,988 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:12,988 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:12,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-25 12:26:12,988 INFO L480 AbstractCegarLoop]: Abstraction has has 420 places, 507 transitions, 14505 flow [2021-03-25 12:26:12,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:12,988 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:12,988 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:12,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2021-03-25 12:26:12,988 INFO L428 AbstractCegarLoop]: === Iteration 583 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:12,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1804761750, now seen corresponding path program 51 times [2021-03-25 12:26:12,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:12,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899139898] [2021-03-25 12:26:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:12,994 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:12,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:12,999 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:12,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:13,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:13,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:13,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:13,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:13,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:13,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:13,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:13,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:13,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:13,085 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:13,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:13,102 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:13,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:13,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899139898] [2021-03-25 12:26:13,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:13,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:13,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18204128] [2021-03-25 12:26:13,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:13,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:13,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:13,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:13,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:13,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 507 transitions, 14505 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:13,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:13,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:13,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:13,624 INFO L129 PetriNetUnfolder]: 409/1008 cut-off events. [2021-03-25 12:26:13,624 INFO L130 PetriNetUnfolder]: For 85595/85662 co-relation queries the response was YES. [2021-03-25 12:26:13,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16834 conditions, 1008 events. 409/1008 cut-off events. For 85595/85662 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 7066 event pairs, 51 based on Foata normal form. 18/1025 useless extension candidates. Maximal degree in co-relation 16645. Up to 821 conditions per place. [2021-03-25 12:26:13,638 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 472 selfloop transitions, 25 changer transitions 5/510 dead transitions. [2021-03-25 12:26:13,638 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 510 transitions, 15675 flow [2021-03-25 12:26:13,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 12:26:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 12:26:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 379 transitions. [2021-03-25 12:26:13,640 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1956633970056789 [2021-03-25 12:26:13,640 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 379 transitions. [2021-03-25 12:26:13,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 379 transitions. [2021-03-25 12:26:13,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:13,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 379 transitions. [2021-03-25 12:26:13,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 29.153846153846153) internal successors, (379), 13 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:13,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:13,641 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:13,641 INFO L185 Difference]: Start difference. First operand has 420 places, 507 transitions, 14505 flow. Second operand 13 states and 379 transitions. [2021-03-25 12:26:13,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 510 transitions, 15675 flow [2021-03-25 12:26:14,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 510 transitions, 15115 flow, removed 202 selfloop flow, removed 12 redundant places. [2021-03-25 12:26:14,014 INFO L241 Difference]: Finished difference. Result has 421 places, 502 transitions, 13910 flow [2021-03-25 12:26:14,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13949, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=482, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13910, PETRI_PLACES=421, PETRI_TRANSITIONS=502} [2021-03-25 12:26:14,015 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 374 predicate places. [2021-03-25 12:26:14,015 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:14,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 502 transitions, 13910 flow [2021-03-25 12:26:14,015 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 502 transitions, 13910 flow [2021-03-25 12:26:14,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 502 transitions, 13910 flow [2021-03-25 12:26:14,179 INFO L129 PetriNetUnfolder]: 396/976 cut-off events. [2021-03-25 12:26:14,179 INFO L130 PetriNetUnfolder]: For 87534/87632 co-relation queries the response was YES. [2021-03-25 12:26:14,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15438 conditions, 976 events. 396/976 cut-off events. For 87534/87632 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6966 event pairs, 41 based on Foata normal form. 15/983 useless extension candidates. Maximal degree in co-relation 15252. Up to 347 conditions per place. [2021-03-25 12:26:14,200 INFO L142 LiptonReduction]: Number of co-enabled transitions 804 [2021-03-25 12:26:14,228 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:14,228 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:14,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 213 [2021-03-25 12:26:14,228 INFO L480 AbstractCegarLoop]: Abstraction has has 414 places, 502 transitions, 13910 flow [2021-03-25 12:26:14,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:14,228 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:14,228 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:14,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2021-03-25 12:26:14,228 INFO L428 AbstractCegarLoop]: === Iteration 584 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:14,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:14,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1272702486, now seen corresponding path program 52 times [2021-03-25 12:26:14,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:14,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180992631] [2021-03-25 12:26:14,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:14,234 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:14,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:14,239 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:14,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:14,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:14,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:14,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:14,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:14,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:14,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:14,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:14,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:14,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:14,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:14,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:14,331 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:14,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:14,355 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:14,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:14,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180992631] [2021-03-25 12:26:14,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:14,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:14,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140424081] [2021-03-25 12:26:14,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:14,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:14,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:14,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:14,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:14,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 502 transitions, 13910 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:14,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:14,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:14,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:15,084 INFO L129 PetriNetUnfolder]: 408/997 cut-off events. [2021-03-25 12:26:15,084 INFO L130 PetriNetUnfolder]: For 83672/83739 co-relation queries the response was YES. [2021-03-25 12:26:15,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16533 conditions, 997 events. 408/997 cut-off events. For 83672/83739 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6942 event pairs, 47 based on Foata normal form. 38/1034 useless extension candidates. Maximal degree in co-relation 16343. Up to 763 conditions per place. [2021-03-25 12:26:15,099 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 386 selfloop transitions, 108 changer transitions 5/507 dead transitions. [2021-03-25 12:26:15,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 507 transitions, 15126 flow [2021-03-25 12:26:15,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:26:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:26:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 490 transitions. [2021-03-25 12:26:15,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20553691275167785 [2021-03-25 12:26:15,101 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 490 transitions. [2021-03-25 12:26:15,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 490 transitions. [2021-03-25 12:26:15,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:15,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 490 transitions. [2021-03-25 12:26:15,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 30.625) internal successors, (490), 16 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:15,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 149.0) internal successors, (2533), 17 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:15,102 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 149.0) internal successors, (2533), 17 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:15,102 INFO L185 Difference]: Start difference. First operand has 414 places, 502 transitions, 13910 flow. Second operand 16 states and 490 transitions. [2021-03-25 12:26:15,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 507 transitions, 15126 flow [2021-03-25 12:26:15,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 507 transitions, 14993 flow, removed 15 selfloop flow, removed 11 redundant places. [2021-03-25 12:26:15,473 INFO L241 Difference]: Finished difference. Result has 420 places, 498 transitions, 13916 flow [2021-03-25 12:26:15,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13781, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13916, PETRI_PLACES=420, PETRI_TRANSITIONS=498} [2021-03-25 12:26:15,473 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 373 predicate places. [2021-03-25 12:26:15,474 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:15,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 420 places, 498 transitions, 13916 flow [2021-03-25 12:26:15,474 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 420 places, 498 transitions, 13916 flow [2021-03-25 12:26:15,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 416 places, 498 transitions, 13916 flow [2021-03-25 12:26:15,640 INFO L129 PetriNetUnfolder]: 390/978 cut-off events. [2021-03-25 12:26:15,640 INFO L130 PetriNetUnfolder]: For 83552/83583 co-relation queries the response was YES. [2021-03-25 12:26:15,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15377 conditions, 978 events. 390/978 cut-off events. For 83552/83583 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 7019 event pairs, 28 based on Foata normal form. 3/981 useless extension candidates. Maximal degree in co-relation 15192. Up to 343 conditions per place. [2021-03-25 12:26:15,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 792 [2021-03-25 12:26:15,688 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:15,688 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:15,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 214 [2021-03-25 12:26:15,688 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 498 transitions, 13916 flow [2021-03-25 12:26:15,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:15,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:15,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:15,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2021-03-25 12:26:15,688 INFO L428 AbstractCegarLoop]: === Iteration 585 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:15,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1862591318, now seen corresponding path program 53 times [2021-03-25 12:26:15,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:15,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260690016] [2021-03-25 12:26:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:15,694 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:15,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:15,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:15,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:15,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:15,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:15,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:15,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:15,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:15,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:15,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:15,758 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:15,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:15,761 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:15,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:15,778 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:15,795 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:15,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260690016] [2021-03-25 12:26:15,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:15,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:26:15,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290376999] [2021-03-25 12:26:15,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:26:15,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:15,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:26:15,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:26:15,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:15,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 498 transitions, 13916 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:15,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:15,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:15,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:16,482 INFO L129 PetriNetUnfolder]: 406/1003 cut-off events. [2021-03-25 12:26:16,483 INFO L130 PetriNetUnfolder]: For 84382/84449 co-relation queries the response was YES. [2021-03-25 12:26:16,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16540 conditions, 1003 events. 406/1003 cut-off events. For 84382/84449 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6994 event pairs, 51 based on Foata normal form. 29/1031 useless extension candidates. Maximal degree in co-relation 16351. Up to 768 conditions per place. [2021-03-25 12:26:16,496 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 395 selfloop transitions, 105 changer transitions 4/512 dead transitions. [2021-03-25 12:26:16,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 512 transitions, 15457 flow [2021-03-25 12:26:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:26:16,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:26:16,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 464 transitions. [2021-03-25 12:26:16,498 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2076062639821029 [2021-03-25 12:26:16,498 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 464 transitions. [2021-03-25 12:26:16,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 464 transitions. [2021-03-25 12:26:16,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:16,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 464 transitions. [2021-03-25 12:26:16,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 30.933333333333334) internal successors, (464), 15 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:16,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 149.0) internal successors, (2384), 16 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:16,499 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 149.0) internal successors, (2384), 16 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:16,499 INFO L185 Difference]: Start difference. First operand has 416 places, 498 transitions, 13916 flow. Second operand 15 states and 464 transitions. [2021-03-25 12:26:16,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 512 transitions, 15457 flow [2021-03-25 12:26:16,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 512 transitions, 15214 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-03-25 12:26:16,834 INFO L241 Difference]: Finished difference. Result has 419 places, 505 transitions, 14141 flow [2021-03-25 12:26:16,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13675, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14141, PETRI_PLACES=419, PETRI_TRANSITIONS=505} [2021-03-25 12:26:16,834 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 372 predicate places. [2021-03-25 12:26:16,834 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:16,834 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 419 places, 505 transitions, 14141 flow [2021-03-25 12:26:16,834 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 419 places, 505 transitions, 14141 flow [2021-03-25 12:26:16,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 419 places, 505 transitions, 14141 flow [2021-03-25 12:26:16,993 INFO L129 PetriNetUnfolder]: 390/970 cut-off events. [2021-03-25 12:26:16,993 INFO L130 PetriNetUnfolder]: For 85453/85539 co-relation queries the response was YES. [2021-03-25 12:26:17,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15423 conditions, 970 events. 390/970 cut-off events. For 85453/85539 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 6962 event pairs, 36 based on Foata normal form. 15/982 useless extension candidates. Maximal degree in co-relation 15227. Up to 346 conditions per place. [2021-03-25 12:26:17,011 INFO L142 LiptonReduction]: Number of co-enabled transitions 802 [2021-03-25 12:26:17,039 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:17,039 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:17,039 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 205 [2021-03-25 12:26:17,039 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 505 transitions, 14141 flow [2021-03-25 12:26:17,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:17,039 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:17,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:17,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2021-03-25 12:26:17,040 INFO L428 AbstractCegarLoop]: === Iteration 586 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:17,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:17,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1534573869, now seen corresponding path program 209 times [2021-03-25 12:26:17,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:17,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067657948] [2021-03-25 12:26:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:17,045 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:17,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:17,050 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:17,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:17,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:17,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:17,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:17,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:17,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:17,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:17,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:17,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:17,111 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:17,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:17,114 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:17,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:17,130 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:17,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:17,148 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:17,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:17,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067657948] [2021-03-25 12:26:17,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:17,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-25 12:26:17,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854976629] [2021-03-25 12:26:17,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 12:26:17,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:17,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 12:26:17,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-03-25 12:26:17,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:17,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 505 transitions, 14141 flow. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:17,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:17,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:17,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:17,652 INFO L129 PetriNetUnfolder]: 403/995 cut-off events. [2021-03-25 12:26:17,652 INFO L130 PetriNetUnfolder]: For 83917/83984 co-relation queries the response was YES. [2021-03-25 12:26:17,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16445 conditions, 995 events. 403/995 cut-off events. For 83917/83984 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6963 event pairs, 50 based on Foata normal form. 27/1022 useless extension candidates. Maximal degree in co-relation 16244. Up to 800 conditions per place. [2021-03-25 12:26:17,667 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 462 selfloop transitions, 31 changer transitions 6/507 dead transitions. [2021-03-25 12:26:17,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 507 transitions, 15170 flow [2021-03-25 12:26:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 12:26:17,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 12:26:17,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 324 transitions. [2021-03-25 12:26:17,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19768151311775473 [2021-03-25 12:26:17,668 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 324 transitions. [2021-03-25 12:26:17,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 324 transitions. [2021-03-25 12:26:17,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:17,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 324 transitions. [2021-03-25 12:26:17,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 29.454545454545453) internal successors, (324), 11 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:17,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:17,669 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:17,669 INFO L185 Difference]: Start difference. First operand has 419 places, 505 transitions, 14141 flow. Second operand 11 states and 324 transitions. [2021-03-25 12:26:17,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 507 transitions, 15170 flow [2021-03-25 12:26:18,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 507 transitions, 14755 flow, removed 93 selfloop flow, removed 12 redundant places. [2021-03-25 12:26:18,025 INFO L241 Difference]: Finished difference. Result has 419 places, 500 transitions, 13728 flow [2021-03-25 12:26:18,025 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13726, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13728, PETRI_PLACES=419, PETRI_TRANSITIONS=500} [2021-03-25 12:26:18,026 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 372 predicate places. [2021-03-25 12:26:18,026 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:18,026 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 419 places, 500 transitions, 13728 flow [2021-03-25 12:26:18,026 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 419 places, 500 transitions, 13728 flow [2021-03-25 12:26:18,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 415 places, 500 transitions, 13728 flow [2021-03-25 12:26:18,181 INFO L129 PetriNetUnfolder]: 387/962 cut-off events. [2021-03-25 12:26:18,182 INFO L130 PetriNetUnfolder]: For 83651/83728 co-relation queries the response was YES. [2021-03-25 12:26:18,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15085 conditions, 962 events. 387/962 cut-off events. For 83651/83728 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6858 event pairs, 39 based on Foata normal form. 14/971 useless extension candidates. Maximal degree in co-relation 14906. Up to 338 conditions per place. [2021-03-25 12:26:18,199 INFO L142 LiptonReduction]: Number of co-enabled transitions 802 [2021-03-25 12:26:18,227 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:18,227 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:18,227 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 12:26:18,227 INFO L480 AbstractCegarLoop]: Abstraction has has 415 places, 500 transitions, 13728 flow [2021-03-25 12:26:18,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:18,227 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:18,227 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:18,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2021-03-25 12:26:18,227 INFO L428 AbstractCegarLoop]: === Iteration 587 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:18,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:18,227 INFO L82 PathProgramCache]: Analyzing trace with hash -2104314620, now seen corresponding path program 54 times [2021-03-25 12:26:18,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:18,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911556993] [2021-03-25 12:26:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:18,233 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:18,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:18,238 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:18,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:18,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:18,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:18,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:18,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:18,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:18,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:18,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:18,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:18,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:18,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:18,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:18,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:18,326 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:18,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:18,343 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:18,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:18,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911556993] [2021-03-25 12:26:18,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:18,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:18,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356680570] [2021-03-25 12:26:18,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:18,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:18,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:18,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:18,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:18,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 500 transitions, 13728 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:18,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:18,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:18,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:19,025 INFO L129 PetriNetUnfolder]: 402/990 cut-off events. [2021-03-25 12:26:19,025 INFO L130 PetriNetUnfolder]: For 80191/80258 co-relation queries the response was YES. [2021-03-25 12:26:19,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16256 conditions, 990 events. 402/990 cut-off events. For 80191/80258 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6900 event pairs, 47 based on Foata normal form. 28/1017 useless extension candidates. Maximal degree in co-relation 16075. Up to 763 conditions per place. [2021-03-25 12:26:19,040 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 400 selfloop transitions, 91 changer transitions 10/509 dead transitions. [2021-03-25 12:26:19,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 509 transitions, 15126 flow [2021-03-25 12:26:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 12:26:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 12:26:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 511 transitions. [2021-03-25 12:26:19,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20173707066719304 [2021-03-25 12:26:19,042 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 511 transitions. [2021-03-25 12:26:19,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 511 transitions. [2021-03-25 12:26:19,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:19,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 511 transitions. [2021-03-25 12:26:19,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 30.058823529411764) internal successors, (511), 17 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:19,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:19,043 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:19,043 INFO L185 Difference]: Start difference. First operand has 415 places, 500 transitions, 13728 flow. Second operand 17 states and 511 transitions. [2021-03-25 12:26:19,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 509 transitions, 15126 flow [2021-03-25 12:26:19,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 509 transitions, 15012 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-25 12:26:19,388 INFO L241 Difference]: Finished difference. Result has 423 places, 497 transitions, 13772 flow [2021-03-25 12:26:19,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13614, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13772, PETRI_PLACES=423, PETRI_TRANSITIONS=497} [2021-03-25 12:26:19,388 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 376 predicate places. [2021-03-25 12:26:19,388 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:19,388 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 497 transitions, 13772 flow [2021-03-25 12:26:19,388 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 497 transitions, 13772 flow [2021-03-25 12:26:19,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 419 places, 497 transitions, 13772 flow [2021-03-25 12:26:19,568 INFO L129 PetriNetUnfolder]: 380/956 cut-off events. [2021-03-25 12:26:19,569 INFO L130 PetriNetUnfolder]: For 84298/84351 co-relation queries the response was YES. [2021-03-25 12:26:19,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15044 conditions, 956 events. 380/956 cut-off events. For 84298/84351 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6813 event pairs, 40 based on Foata normal form. 12/967 useless extension candidates. Maximal degree in co-relation 14855. Up to 333 conditions per place. [2021-03-25 12:26:19,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:19,610 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:19,611 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:19,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 223 [2021-03-25 12:26:19,611 INFO L480 AbstractCegarLoop]: Abstraction has has 419 places, 497 transitions, 13772 flow [2021-03-25 12:26:19,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:19,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:19,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:19,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2021-03-25 12:26:19,611 INFO L428 AbstractCegarLoop]: === Iteration 588 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:19,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2009784912, now seen corresponding path program 55 times [2021-03-25 12:26:19,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:19,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105785723] [2021-03-25 12:26:19,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:19,616 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:19,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:19,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:19,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:19,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:19,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:19,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:19,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:19,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:19,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:19,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:19,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:19,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:19,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:19,692 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:19,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:19,709 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:19,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:19,726 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:19,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:19,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105785723] [2021-03-25 12:26:19,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:19,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:19,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126343237] [2021-03-25 12:26:19,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:19,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:19,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:19,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:19,730 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:19,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 497 transitions, 13772 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:19,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:19,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:19,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:20,449 INFO L129 PetriNetUnfolder]: 397/985 cut-off events. [2021-03-25 12:26:20,449 INFO L130 PetriNetUnfolder]: For 82211/82278 co-relation queries the response was YES. [2021-03-25 12:26:20,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16221 conditions, 985 events. 397/985 cut-off events. For 82211/82278 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6852 event pairs, 47 based on Foata normal form. 28/1012 useless extension candidates. Maximal degree in co-relation 16028. Up to 750 conditions per place. [2021-03-25 12:26:20,463 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 384 selfloop transitions, 102 changer transitions 10/504 dead transitions. [2021-03-25 12:26:20,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 504 transitions, 14975 flow [2021-03-25 12:26:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 12:26:20,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 12:26:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 543 transitions. [2021-03-25 12:26:20,464 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20246085011185683 [2021-03-25 12:26:20,464 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 543 transitions. [2021-03-25 12:26:20,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 543 transitions. [2021-03-25 12:26:20,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:20,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 543 transitions. [2021-03-25 12:26:20,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 30.166666666666668) internal successors, (543), 18 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:20,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 149.0) internal successors, (2831), 19 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:20,466 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 149.0) internal successors, (2831), 19 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:20,466 INFO L185 Difference]: Start difference. First operand has 419 places, 497 transitions, 13772 flow. Second operand 18 states and 543 transitions. [2021-03-25 12:26:20,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 504 transitions, 14975 flow [2021-03-25 12:26:20,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 504 transitions, 14779 flow, removed 8 selfloop flow, removed 15 redundant places. [2021-03-25 12:26:20,821 INFO L241 Difference]: Finished difference. Result has 425 places, 491 transitions, 13624 flow [2021-03-25 12:26:20,821 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13580, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13624, PETRI_PLACES=425, PETRI_TRANSITIONS=491} [2021-03-25 12:26:20,821 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 378 predicate places. [2021-03-25 12:26:20,821 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:20,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 491 transitions, 13624 flow [2021-03-25 12:26:20,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 491 transitions, 13624 flow [2021-03-25 12:26:20,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 422 places, 491 transitions, 13624 flow [2021-03-25 12:26:20,974 INFO L129 PetriNetUnfolder]: 381/961 cut-off events. [2021-03-25 12:26:20,974 INFO L130 PetriNetUnfolder]: For 84335/84402 co-relation queries the response was YES. [2021-03-25 12:26:20,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15130 conditions, 961 events. 381/961 cut-off events. For 84335/84402 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 6844 event pairs, 29 based on Foata normal form. 10/970 useless extension candidates. Maximal degree in co-relation 14941. Up to 335 conditions per place. [2021-03-25 12:26:20,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 794 [2021-03-25 12:26:21,018 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:21,018 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:21,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 197 [2021-03-25 12:26:21,018 INFO L480 AbstractCegarLoop]: Abstraction has has 422 places, 491 transitions, 13624 flow [2021-03-25 12:26:21,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:21,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:21,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:21,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2021-03-25 12:26:21,018 INFO L428 AbstractCegarLoop]: === Iteration 589 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:21,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:21,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1035364789, now seen corresponding path program 210 times [2021-03-25 12:26:21,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:21,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582160163] [2021-03-25 12:26:21,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:21,023 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:21,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:21,029 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:21,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:21,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:21,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:21,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:21,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:21,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:21,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:21,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:21,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:21,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:21,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:21,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:21,114 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:21,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:21,132 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:21,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:21,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582160163] [2021-03-25 12:26:21,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:21,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:21,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886421492] [2021-03-25 12:26:21,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:21,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:21,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:21,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:21,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:21,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 491 transitions, 13624 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:21,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:21,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:21,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:21,641 INFO L129 PetriNetUnfolder]: 394/977 cut-off events. [2021-03-25 12:26:21,641 INFO L130 PetriNetUnfolder]: For 78166/78233 co-relation queries the response was YES. [2021-03-25 12:26:21,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16072 conditions, 977 events. 394/977 cut-off events. For 78166/78233 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6796 event pairs, 49 based on Foata normal form. 27/1004 useless extension candidates. Maximal degree in co-relation 15872. Up to 780 conditions per place. [2021-03-25 12:26:21,655 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 448 selfloop transitions, 33 changer transitions 5/494 dead transitions. [2021-03-25 12:26:21,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 494 transitions, 14643 flow [2021-03-25 12:26:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:26:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:26:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 354 transitions. [2021-03-25 12:26:21,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19798657718120805 [2021-03-25 12:26:21,656 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 354 transitions. [2021-03-25 12:26:21,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 354 transitions. [2021-03-25 12:26:21,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:21,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 354 transitions. [2021-03-25 12:26:21,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:21,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:21,658 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:21,658 INFO L185 Difference]: Start difference. First operand has 422 places, 491 transitions, 13624 flow. Second operand 12 states and 354 transitions. [2021-03-25 12:26:21,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 494 transitions, 14643 flow [2021-03-25 12:26:21,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 494 transitions, 14368 flow, removed 19 selfloop flow, removed 17 redundant places. [2021-03-25 12:26:22,001 INFO L241 Difference]: Finished difference. Result has 418 places, 487 transitions, 13373 flow [2021-03-25 12:26:22,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13349, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13373, PETRI_PLACES=418, PETRI_TRANSITIONS=487} [2021-03-25 12:26:22,002 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 371 predicate places. [2021-03-25 12:26:22,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:22,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 418 places, 487 transitions, 13373 flow [2021-03-25 12:26:22,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 418 places, 487 transitions, 13373 flow [2021-03-25 12:26:22,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 414 places, 487 transitions, 13373 flow [2021-03-25 12:26:22,157 INFO L129 PetriNetUnfolder]: 376/949 cut-off events. [2021-03-25 12:26:22,157 INFO L130 PetriNetUnfolder]: For 74787/74868 co-relation queries the response was YES. [2021-03-25 12:26:22,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14623 conditions, 949 events. 376/949 cut-off events. For 74787/74868 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6742 event pairs, 44 based on Foata normal form. 15/960 useless extension candidates. Maximal degree in co-relation 14445. Up to 332 conditions per place. [2021-03-25 12:26:22,176 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 12:26:22,202 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:22,202 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:22,202 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-25 12:26:22,202 INFO L480 AbstractCegarLoop]: Abstraction has has 414 places, 487 transitions, 13373 flow [2021-03-25 12:26:22,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:22,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:22,203 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:22,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2021-03-25 12:26:22,203 INFO L428 AbstractCegarLoop]: === Iteration 590 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:22,203 INFO L82 PathProgramCache]: Analyzing trace with hash 2137857048, now seen corresponding path program 56 times [2021-03-25 12:26:22,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:22,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244703418] [2021-03-25 12:26:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:22,208 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:22,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:22,213 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:22,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:22,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:22,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:22,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:22,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:22,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:22,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:22,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:22,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:22,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:22,284 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:22,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:22,301 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:22,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:22,319 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:22,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:22,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244703418] [2021-03-25 12:26:22,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:22,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:22,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011180848] [2021-03-25 12:26:22,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:22,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:22,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:22,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:22,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:22,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 487 transitions, 13373 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:22,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:22,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:22,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:23,002 INFO L129 PetriNetUnfolder]: 393/968 cut-off events. [2021-03-25 12:26:23,002 INFO L130 PetriNetUnfolder]: For 72489/72556 co-relation queries the response was YES. [2021-03-25 12:26:23,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15695 conditions, 968 events. 393/968 cut-off events. For 72489/72556 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6690 event pairs, 50 based on Foata normal form. 28/995 useless extension candidates. Maximal degree in co-relation 15515. Up to 758 conditions per place. [2021-03-25 12:26:23,015 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 410 selfloop transitions, 68 changer transitions 3/489 dead transitions. [2021-03-25 12:26:23,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 489 transitions, 14459 flow [2021-03-25 12:26:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 12:26:23,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 12:26:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 482 transitions. [2021-03-25 12:26:23,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20218120805369127 [2021-03-25 12:26:23,017 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 482 transitions. [2021-03-25 12:26:23,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 482 transitions. [2021-03-25 12:26:23,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:23,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 482 transitions. [2021-03-25 12:26:23,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 30.125) internal successors, (482), 16 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:23,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 149.0) internal successors, (2533), 17 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:23,018 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 149.0) internal successors, (2533), 17 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:23,018 INFO L185 Difference]: Start difference. First operand has 414 places, 487 transitions, 13373 flow. Second operand 16 states and 482 transitions. [2021-03-25 12:26:23,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 489 transitions, 14459 flow [2021-03-25 12:26:23,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 489 transitions, 14380 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-03-25 12:26:23,350 INFO L241 Difference]: Finished difference. Result has 419 places, 484 transitions, 13413 flow [2021-03-25 12:26:23,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13294, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13413, PETRI_PLACES=419, PETRI_TRANSITIONS=484} [2021-03-25 12:26:23,350 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 372 predicate places. [2021-03-25 12:26:23,350 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:23,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 419 places, 484 transitions, 13413 flow [2021-03-25 12:26:23,350 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 419 places, 484 transitions, 13413 flow [2021-03-25 12:26:23,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 416 places, 484 transitions, 13413 flow [2021-03-25 12:26:23,507 INFO L129 PetriNetUnfolder]: 376/938 cut-off events. [2021-03-25 12:26:23,508 INFO L130 PetriNetUnfolder]: For 78124/78179 co-relation queries the response was YES. [2021-03-25 12:26:23,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14651 conditions, 938 events. 376/938 cut-off events. For 78124/78179 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 6639 event pairs, 35 based on Foata normal form. 14/951 useless extension candidates. Maximal degree in co-relation 14463. Up to 332 conditions per place. [2021-03-25 12:26:23,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 790 [2021-03-25 12:26:23,556 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:23,556 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:23,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206 [2021-03-25 12:26:23,556 INFO L480 AbstractCegarLoop]: Abstraction has has 416 places, 484 transitions, 13413 flow [2021-03-25 12:26:23,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:23,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:23,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:23,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2021-03-25 12:26:23,557 INFO L428 AbstractCegarLoop]: === Iteration 591 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:23,557 INFO L82 PathProgramCache]: Analyzing trace with hash 341409010, now seen corresponding path program 57 times [2021-03-25 12:26:23,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:23,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819014987] [2021-03-25 12:26:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:23,562 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:23,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:23,568 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:23,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:23,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:23,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:23,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:23,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:23,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:23,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:23,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:23,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:23,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:23,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:23,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:23,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:23,655 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:23,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:23,673 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:23,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:23,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819014987] [2021-03-25 12:26:23,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:23,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:23,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818244705] [2021-03-25 12:26:23,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:23,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:23,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:23,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:23,677 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:23,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 484 transitions, 13413 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:23,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:23,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:23,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:24,248 INFO L129 PetriNetUnfolder]: 392/964 cut-off events. [2021-03-25 12:26:24,248 INFO L130 PetriNetUnfolder]: For 72603/72670 co-relation queries the response was YES. [2021-03-25 12:26:24,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15755 conditions, 964 events. 392/964 cut-off events. For 72603/72670 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6643 event pairs, 50 based on Foata normal form. 38/1001 useless extension candidates. Maximal degree in co-relation 15563. Up to 771 conditions per place. [2021-03-25 12:26:24,263 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 423 selfloop transitions, 51 changer transitions 4/486 dead transitions. [2021-03-25 12:26:24,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 486 transitions, 14471 flow [2021-03-25 12:26:24,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 12:26:24,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 12:26:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 415 transitions. [2021-03-25 12:26:24,265 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19894534995206137 [2021-03-25 12:26:24,265 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 415 transitions. [2021-03-25 12:26:24,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 415 transitions. [2021-03-25 12:26:24,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:24,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 415 transitions. [2021-03-25 12:26:24,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 29.642857142857142) internal successors, (415), 14 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:24,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:24,266 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 149.0) internal successors, (2235), 15 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:24,266 INFO L185 Difference]: Start difference. First operand has 416 places, 484 transitions, 13413 flow. Second operand 14 states and 415 transitions. [2021-03-25 12:26:24,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 486 transitions, 14471 flow [2021-03-25 12:26:24,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 486 transitions, 14202 flow, removed 44 selfloop flow, removed 18 redundant places. [2021-03-25 12:26:24,615 INFO L241 Difference]: Finished difference. Result has 413 places, 481 transitions, 13187 flow [2021-03-25 12:26:24,615 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13144, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13187, PETRI_PLACES=413, PETRI_TRANSITIONS=481} [2021-03-25 12:26:24,615 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 366 predicate places. [2021-03-25 12:26:24,615 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:24,615 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 413 places, 481 transitions, 13187 flow [2021-03-25 12:26:24,615 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 413 places, 481 transitions, 13187 flow [2021-03-25 12:26:24,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 409 places, 481 transitions, 13187 flow [2021-03-25 12:26:24,763 INFO L129 PetriNetUnfolder]: 376/937 cut-off events. [2021-03-25 12:26:24,763 INFO L130 PetriNetUnfolder]: For 76155/76239 co-relation queries the response was YES. [2021-03-25 12:26:24,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14492 conditions, 937 events. 376/937 cut-off events. For 76155/76239 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6619 event pairs, 42 based on Foata normal form. 16/946 useless extension candidates. Maximal degree in co-relation 14309. Up to 330 conditions per place. [2021-03-25 12:26:24,780 INFO L142 LiptonReduction]: Number of co-enabled transitions 782 [2021-03-25 12:26:24,805 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:24,806 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:24,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 191 [2021-03-25 12:26:24,806 INFO L480 AbstractCegarLoop]: Abstraction has has 409 places, 481 transitions, 13187 flow [2021-03-25 12:26:24,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:24,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:24,806 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:24,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2021-03-25 12:26:24,806 INFO L428 AbstractCegarLoop]: === Iteration 592 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:24,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:24,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1259359200, now seen corresponding path program 58 times [2021-03-25 12:26:24,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:24,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289818010] [2021-03-25 12:26:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:24,811 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:24,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:24,817 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:24,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:24,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:24,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:24,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:24,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:24,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:24,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:24,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:24,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:24,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:24,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:24,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:24,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:24,905 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:24,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:24,923 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:24,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:24,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:24,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289818010] [2021-03-25 12:26:24,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:24,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:24,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482496907] [2021-03-25 12:26:24,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:24,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:24,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:24,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:24,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:24,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 481 transitions, 13187 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:24,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:24,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:24,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:25,497 INFO L129 PetriNetUnfolder]: 391/957 cut-off events. [2021-03-25 12:26:25,497 INFO L130 PetriNetUnfolder]: For 72246/72313 co-relation queries the response was YES. [2021-03-25 12:26:25,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15575 conditions, 957 events. 391/957 cut-off events. For 72246/72313 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6550 event pairs, 54 based on Foata normal form. 28/984 useless extension candidates. Maximal degree in co-relation 15388. Up to 771 conditions per place. [2021-03-25 12:26:25,511 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 431 selfloop transitions, 35 changer transitions 9/483 dead transitions. [2021-03-25 12:26:25,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 483 transitions, 14248 flow [2021-03-25 12:26:25,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 12:26:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 12:26:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 436 transitions. [2021-03-25 12:26:25,512 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19507829977628635 [2021-03-25 12:26:25,512 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 436 transitions. [2021-03-25 12:26:25,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 436 transitions. [2021-03-25 12:26:25,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:25,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 436 transitions. [2021-03-25 12:26:25,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 29.066666666666666) internal successors, (436), 15 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:25,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 149.0) internal successors, (2384), 16 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:25,514 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 149.0) internal successors, (2384), 16 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:25,514 INFO L185 Difference]: Start difference. First operand has 409 places, 481 transitions, 13187 flow. Second operand 15 states and 436 transitions. [2021-03-25 12:26:25,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 483 transitions, 14248 flow [2021-03-25 12:26:25,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 483 transitions, 14127 flow, removed 5 selfloop flow, removed 14 redundant places. [2021-03-25 12:26:25,869 INFO L241 Difference]: Finished difference. Result has 411 places, 473 transitions, 12917 flow [2021-03-25 12:26:25,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13068, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12917, PETRI_PLACES=411, PETRI_TRANSITIONS=473} [2021-03-25 12:26:25,869 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 364 predicate places. [2021-03-25 12:26:25,869 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:25,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 411 places, 473 transitions, 12917 flow [2021-03-25 12:26:25,870 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 411 places, 473 transitions, 12917 flow [2021-03-25 12:26:25,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 401 places, 473 transitions, 12917 flow [2021-03-25 12:26:26,046 INFO L129 PetriNetUnfolder]: 374/932 cut-off events. [2021-03-25 12:26:26,046 INFO L130 PetriNetUnfolder]: For 73695/73762 co-relation queries the response was YES. [2021-03-25 12:26:26,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14260 conditions, 932 events. 374/932 cut-off events. For 73695/73762 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6559 event pairs, 37 based on Foata normal form. 17/947 useless extension candidates. Maximal degree in co-relation 14078. Up to 326 conditions per place. [2021-03-25 12:26:26,063 INFO L142 LiptonReduction]: Number of co-enabled transitions 770 [2021-03-25 12:26:26,087 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:26,087 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:26,087 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 218 [2021-03-25 12:26:26,088 INFO L480 AbstractCegarLoop]: Abstraction has has 401 places, 473 transitions, 12917 flow [2021-03-25 12:26:26,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:26,088 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:26,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:26,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2021-03-25 12:26:26,088 INFO L428 AbstractCegarLoop]: === Iteration 593 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:26,088 INFO L82 PathProgramCache]: Analyzing trace with hash 150531541, now seen corresponding path program 211 times [2021-03-25 12:26:26,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:26,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551909170] [2021-03-25 12:26:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:26,095 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:26,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:26,100 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:26,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:26,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:26,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:26,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:26,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:26,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:26,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:26,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:26,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:26,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:26,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:26,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:26,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:26,194 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:26,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:26,212 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:26,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:26,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551909170] [2021-03-25 12:26:26,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:26,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:26,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315015652] [2021-03-25 12:26:26,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:26,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:26,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:26,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:26,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:26,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 473 transitions, 12917 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:26,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:26,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:26,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:26,663 INFO L129 PetriNetUnfolder]: 389/948 cut-off events. [2021-03-25 12:26:26,664 INFO L130 PetriNetUnfolder]: For 69521/69567 co-relation queries the response was YES. [2021-03-25 12:26:26,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15322 conditions, 948 events. 389/948 cut-off events. For 69521/69567 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 6424 event pairs, 54 based on Foata normal form. 18/966 useless extension candidates. Maximal degree in co-relation 15137. Up to 765 conditions per place. [2021-03-25 12:26:26,677 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 433 selfloop transitions, 29 changer transitions 5/475 dead transitions. [2021-03-25 12:26:26,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 475 transitions, 13882 flow [2021-03-25 12:26:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:26:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:26:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 349 transitions. [2021-03-25 12:26:26,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19519015659955258 [2021-03-25 12:26:26,679 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 349 transitions. [2021-03-25 12:26:26,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 349 transitions. [2021-03-25 12:26:26,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:26,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 349 transitions. [2021-03-25 12:26:26,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.083333333333332) internal successors, (349), 12 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:26,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:26,680 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:26,680 INFO L185 Difference]: Start difference. First operand has 401 places, 473 transitions, 12917 flow. Second operand 12 states and 349 transitions. [2021-03-25 12:26:26,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 475 transitions, 13882 flow [2021-03-25 12:26:26,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 475 transitions, 13583 flow, removed 32 selfloop flow, removed 22 redundant places. [2021-03-25 12:26:26,983 INFO L241 Difference]: Finished difference. Result has 392 places, 469 transitions, 12640 flow [2021-03-25 12:26:26,983 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=12618, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12640, PETRI_PLACES=392, PETRI_TRANSITIONS=469} [2021-03-25 12:26:26,983 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 345 predicate places. [2021-03-25 12:26:26,983 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:26,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 392 places, 469 transitions, 12640 flow [2021-03-25 12:26:26,983 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 392 places, 469 transitions, 12640 flow [2021-03-25 12:26:26,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 386 places, 469 transitions, 12640 flow [2021-03-25 12:26:27,124 INFO L129 PetriNetUnfolder]: 374/942 cut-off events. [2021-03-25 12:26:27,124 INFO L130 PetriNetUnfolder]: For 64689/64737 co-relation queries the response was YES. [2021-03-25 12:26:27,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13944 conditions, 942 events. 374/942 cut-off events. For 64689/64737 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6666 event pairs, 33 based on Foata normal form. 9/948 useless extension candidates. Maximal degree in co-relation 13772. Up to 324 conditions per place. [2021-03-25 12:26:27,141 INFO L142 LiptonReduction]: Number of co-enabled transitions 766 [2021-03-25 12:26:27,165 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:27,165 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:27,165 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-25 12:26:27,165 INFO L480 AbstractCegarLoop]: Abstraction has has 386 places, 469 transitions, 12640 flow [2021-03-25 12:26:27,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:27,166 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:27,166 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:27,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2021-03-25 12:26:27,166 INFO L428 AbstractCegarLoop]: === Iteration 594 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:27,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:27,166 INFO L82 PathProgramCache]: Analyzing trace with hash -725587723, now seen corresponding path program 212 times [2021-03-25 12:26:27,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:27,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720731053] [2021-03-25 12:26:27,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:27,171 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:27,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:27,177 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:27,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:27,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:27,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:27,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:27,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:27,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:27,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:27,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:27,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:27,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:27,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:27,247 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-03-25 12:26:27,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 12:26:27,264 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-03-25 12:26:27,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 12:26:27,282 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-03-25 12:26:27,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:27,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 12:26:27,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720731053] [2021-03-25 12:26:27,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 12:26:27,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 12:26:27,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763433466] [2021-03-25 12:26:27,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 12:26:27,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 12:26:27,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 12:26:27,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-03-25 12:26:27,286 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 149 [2021-03-25 12:26:27,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 469 transitions, 12640 flow. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:27,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 12:26:27,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 149 [2021-03-25 12:26:27,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 12:26:27,750 INFO L129 PetriNetUnfolder]: 387/945 cut-off events. [2021-03-25 12:26:27,750 INFO L130 PetriNetUnfolder]: For 63420/63493 co-relation queries the response was YES. [2021-03-25 12:26:27,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14890 conditions, 945 events. 387/945 cut-off events. For 63420/63493 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 6438 event pairs, 55 based on Foata normal form. 33/978 useless extension candidates. Maximal degree in co-relation 14713. Up to 763 conditions per place. [2021-03-25 12:26:27,763 INFO L132 encePairwiseOnDemand]: 136/149 looper letters, 433 selfloop transitions, 20 changer transitions 10/471 dead transitions. [2021-03-25 12:26:27,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 471 transitions, 13599 flow [2021-03-25 12:26:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 12:26:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 12:26:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 348 transitions. [2021-03-25 12:26:27,765 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19463087248322147 [2021-03-25 12:26:27,765 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 348 transitions. [2021-03-25 12:26:27,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 348 transitions. [2021-03-25 12:26:27,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 12:26:27,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 348 transitions. [2021-03-25 12:26:27,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:27,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:27,766 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:27,766 INFO L185 Difference]: Start difference. First operand has 386 places, 469 transitions, 12640 flow. Second operand 12 states and 348 transitions. [2021-03-25 12:26:27,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 471 transitions, 13599 flow [2021-03-25 12:26:28,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 471 transitions, 13402 flow, removed 58 selfloop flow, removed 13 redundant places. [2021-03-25 12:26:28,022 INFO L241 Difference]: Finished difference. Result has 386 places, 460 transitions, 12411 flow [2021-03-25 12:26:28,022 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=12445, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12411, PETRI_PLACES=386, PETRI_TRANSITIONS=460} [2021-03-25 12:26:28,022 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 339 predicate places. [2021-03-25 12:26:28,022 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 12:26:28,023 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 386 places, 460 transitions, 12411 flow [2021-03-25 12:26:28,023 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 386 places, 460 transitions, 12411 flow [2021-03-25 12:26:28,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 377 places, 460 transitions, 12411 flow [2021-03-25 12:26:28,156 INFO L129 PetriNetUnfolder]: 368/911 cut-off events. [2021-03-25 12:26:28,156 INFO L130 PetriNetUnfolder]: For 62474/62535 co-relation queries the response was YES. [2021-03-25 12:26:28,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13512 conditions, 911 events. 368/911 cut-off events. For 62474/62535 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 6337 event pairs, 43 based on Foata normal form. 8/915 useless extension candidates. Maximal degree in co-relation 13343. Up to 324 conditions per place. [2021-03-25 12:26:28,172 INFO L142 LiptonReduction]: Number of co-enabled transitions 766 [2021-03-25 12:26:28,195 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 12:26:28,195 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 12:26:28,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 173 [2021-03-25 12:26:28,195 INFO L480 AbstractCegarLoop]: Abstraction has has 377 places, 460 transitions, 12411 flow [2021-03-25 12:26:28,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 12:26:28,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 12:26:28,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 12:26:28,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2021-03-25 12:26:28,196 INFO L428 AbstractCegarLoop]: === Iteration 595 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 12:26:28,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 12:26:28,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1622510603, now seen corresponding path program 213 times [2021-03-25 12:26:28,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 12:26:28,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908631768] [2021-03-25 12:26:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 12:26:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 12:26:28,201 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-25 12:26:28,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 12:26:28,207 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-03-25 12:26:28,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 12:26:28,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:28,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:28,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:28,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 12:26:28,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:28,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 12:26:28,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 12:26:28,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 Received shutdown request... [2021-03-25 12:26:28,262 WARN L222 SmtUtils]: Removed 5 from assertion stack [2021-03-25 12:26:28,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2021-03-25 12:26:28,262 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 12:26:28,264 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 12:26:28,265 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 12:26:28 BasicIcfg [2021-03-25 12:26:28,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 12:26:28,265 INFO L168 Benchmark]: Toolchain (without parser) took 813476.90 ms. Allocated memory was 255.9 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 236.8 MB in the beginning and 1.1 GB in the end (delta: -816.8 MB). Peak memory consumption was 730.0 MB. Max. memory is 16.0 GB. [2021-03-25 12:26:28,265 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.53 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 12:26:28,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.19 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 12:26:28,266 INFO L168 Benchmark]: Boogie Preprocessor took 13.29 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.2 MB in the end (delta: 977.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 12:26:28,266 INFO L168 Benchmark]: RCFGBuilder took 272.19 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 238.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.0 GB. [2021-03-25 12:26:28,266 INFO L168 Benchmark]: TraceAbstraction took 813163.20 ms. Allocated memory was 255.9 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 237.7 MB in the beginning and 1.1 GB in the end (delta: -815.9 MB). Peak memory consumption was 730.4 MB. Max. memory is 16.0 GB. [2021-03-25 12:26:28,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.53 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.19 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.29 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.2 MB in the end (delta: 977.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 272.19 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 238.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 813163.20 ms. Allocated memory was 255.9 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 237.7 MB in the beginning and 1.1 GB in the end (delta: -815.9 MB). Peak memory consumption was 730.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.3ms, 52 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 34 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 1800 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 781, positive: 705, positive conditional: 0, positive unconditional: 705, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 307, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 307, positive: 284, positive conditional: 0, positive unconditional: 284, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 781, positive: 421, positive conditional: 0, positive unconditional: 421, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 307, unknown conditional: 0, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 162, Positive conditional cache size: 0, Positive unconditional cache size: 162, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.4ms, 42 PlacesBefore, 38 PlacesAfterwards, 34 TransitionsBefore, 30 TransitionsAfterwards, 558 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 897, positive: 811, positive conditional: 0, positive unconditional: 811, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 55, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 897, positive: 756, positive conditional: 0, positive unconditional: 756, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 55, unknown conditional: 0, unknown unconditional: 55] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 127, Positive conditional cache size: 0, Positive unconditional cache size: 127, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 103.4ms, 39 PlacesBefore, 35 PlacesAfterwards, 30 TransitionsBefore, 26 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1012 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 524, positive: 466, positive conditional: 0, positive unconditional: 466, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 524, positive: 442, positive conditional: 0, positive unconditional: 442, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.8ms, 36 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 22 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 438 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 317, positive: 287, positive conditional: 0, positive unconditional: 287, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 317, positive: 255, positive conditional: 0, positive unconditional: 255, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 33, unknown conditional: 0, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.9ms, 47 PlacesBefore, 46 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 362, positive: 345, positive conditional: 0, positive unconditional: 345, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 362, positive: 343, positive conditional: 0, positive unconditional: 343, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 153.3ms, 48 PlacesBefore, 46 PlacesAfterwards, 68 TransitionsBefore, 66 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 147 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 147, positive: 147, positive conditional: 0, positive unconditional: 147, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 147, positive: 147, positive conditional: 0, positive unconditional: 147, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.1ms, 57 PlacesBefore, 54 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.2ms, 55 PlacesBefore, 55 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.1ms, 67 PlacesBefore, 67 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.4ms, 76 PlacesBefore, 76 PlacesAfterwards, 148 TransitionsBefore, 148 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.2ms, 85 PlacesBefore, 84 PlacesAfterwards, 151 TransitionsBefore, 151 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.7ms, 93 PlacesBefore, 91 PlacesAfterwards, 166 TransitionsBefore, 166 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.7ms, 105 PlacesBefore, 104 PlacesAfterwards, 180 TransitionsBefore, 180 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.3ms, 108 PlacesBefore, 108 PlacesAfterwards, 195 TransitionsBefore, 195 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.6ms, 115 PlacesBefore, 115 PlacesAfterwards, 225 TransitionsBefore, 225 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.6ms, 129 PlacesBefore, 129 PlacesAfterwards, 235 TransitionsBefore, 235 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.3ms, 129 PlacesBefore, 129 PlacesAfterwards, 251 TransitionsBefore, 251 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.0ms, 137 PlacesBefore, 137 PlacesAfterwards, 262 TransitionsBefore, 262 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.4ms, 149 PlacesBefore, 145 PlacesAfterwards, 260 TransitionsBefore, 260 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.1ms, 146 PlacesBefore, 144 PlacesAfterwards, 269 TransitionsBefore, 269 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.5ms, 150 PlacesBefore, 149 PlacesAfterwards, 271 TransitionsBefore, 271 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 121.9ms, 154 PlacesBefore, 149 PlacesAfterwards, 266 TransitionsBefore, 265 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.6ms, 152 PlacesBefore, 148 PlacesAfterwards, 261 TransitionsBefore, 261 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.1ms, 150 PlacesBefore, 143 PlacesAfterwards, 256 TransitionsBefore, 256 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.7ms, 151 PlacesBefore, 150 PlacesAfterwards, 254 TransitionsBefore, 254 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.8ms, 147 PlacesBefore, 147 PlacesAfterwards, 262 TransitionsBefore, 262 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.1ms, 156 PlacesBefore, 156 PlacesAfterwards, 264 TransitionsBefore, 264 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.4ms, 161 PlacesBefore, 160 PlacesAfterwards, 268 TransitionsBefore, 268 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.9ms, 162 PlacesBefore, 160 PlacesAfterwards, 265 TransitionsBefore, 265 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.1ms, 159 PlacesBefore, 159 PlacesAfterwards, 264 TransitionsBefore, 264 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.3ms, 157 PlacesBefore, 151 PlacesAfterwards, 255 TransitionsBefore, 255 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.9ms, 150 PlacesBefore, 149 PlacesAfterwards, 263 TransitionsBefore, 263 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.4ms, 161 PlacesBefore, 161 PlacesAfterwards, 278 TransitionsBefore, 278 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.0ms, 164 PlacesBefore, 161 PlacesAfterwards, 274 TransitionsBefore, 274 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.8ms, 162 PlacesBefore, 160 PlacesAfterwards, 269 TransitionsBefore, 269 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.1ms, 159 PlacesBefore, 159 PlacesAfterwards, 281 TransitionsBefore, 281 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.1ms, 166 PlacesBefore, 166 PlacesAfterwards, 284 TransitionsBefore, 284 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.2ms, 173 PlacesBefore, 173 PlacesAfterwards, 286 TransitionsBefore, 286 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.4ms, 175 PlacesBefore, 174 PlacesAfterwards, 293 TransitionsBefore, 293 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.4ms, 180 PlacesBefore, 180 PlacesAfterwards, 293 TransitionsBefore, 293 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 69.0ms, 183 PlacesBefore, 181 PlacesAfterwards, 304 TransitionsBefore, 304 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.8ms, 183 PlacesBefore, 182 PlacesAfterwards, 311 TransitionsBefore, 311 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.9ms, 188 PlacesBefore, 188 PlacesAfterwards, 315 TransitionsBefore, 315 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.0ms, 198 PlacesBefore, 197 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 119.7ms, 212 PlacesBefore, 210 PlacesAfterwards, 336 TransitionsBefore, 336 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.7ms, 218 PlacesBefore, 217 PlacesAfterwards, 342 TransitionsBefore, 342 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.6ms, 226 PlacesBefore, 224 PlacesAfterwards, 337 TransitionsBefore, 337 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.5ms, 228 PlacesBefore, 225 PlacesAfterwards, 336 TransitionsBefore, 336 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.9ms, 224 PlacesBefore, 223 PlacesAfterwards, 339 TransitionsBefore, 339 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.4ms, 226 PlacesBefore, 225 PlacesAfterwards, 343 TransitionsBefore, 343 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.8ms, 236 PlacesBefore, 235 PlacesAfterwards, 345 TransitionsBefore, 345 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.4ms, 235 PlacesBefore, 235 PlacesAfterwards, 344 TransitionsBefore, 344 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.1ms, 236 PlacesBefore, 234 PlacesAfterwards, 341 TransitionsBefore, 341 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.6ms, 233 PlacesBefore, 232 PlacesAfterwards, 342 TransitionsBefore, 342 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.3ms, 241 PlacesBefore, 237 PlacesAfterwards, 340 TransitionsBefore, 340 TransitionsAfterwards, 290 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.5ms, 239 PlacesBefore, 236 PlacesAfterwards, 338 TransitionsBefore, 338 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 112.6ms, 240 PlacesBefore, 239 PlacesAfterwards, 340 TransitionsBefore, 340 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.6ms, 243 PlacesBefore, 238 PlacesAfterwards, 335 TransitionsBefore, 335 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 80.3ms, 241 PlacesBefore, 240 PlacesAfterwards, 337 TransitionsBefore, 337 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.3ms, 247 PlacesBefore, 242 PlacesAfterwards, 333 TransitionsBefore, 333 TransitionsAfterwards, 272 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.3ms, 244 PlacesBefore, 241 PlacesAfterwards, 329 TransitionsBefore, 329 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.8ms, 246 PlacesBefore, 241 PlacesAfterwards, 326 TransitionsBefore, 326 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.7ms, 242 PlacesBefore, 238 PlacesAfterwards, 322 TransitionsBefore, 322 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.5ms, 242 PlacesBefore, 241 PlacesAfterwards, 324 TransitionsBefore, 324 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.9ms, 247 PlacesBefore, 241 PlacesAfterwards, 322 TransitionsBefore, 322 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.5ms, 245 PlacesBefore, 240 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.9ms, 241 PlacesBefore, 239 PlacesAfterwards, 331 TransitionsBefore, 331 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.7ms, 242 PlacesBefore, 240 PlacesAfterwards, 327 TransitionsBefore, 327 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.3ms, 243 PlacesBefore, 235 PlacesAfterwards, 319 TransitionsBefore, 319 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.9ms, 238 PlacesBefore, 237 PlacesAfterwards, 319 TransitionsBefore, 319 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.2ms, 243 PlacesBefore, 242 PlacesAfterwards, 315 TransitionsBefore, 315 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.9ms, 242 PlacesBefore, 239 PlacesAfterwards, 308 TransitionsBefore, 308 TransitionsAfterwards, 280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.3ms, 239 PlacesBefore, 234 PlacesAfterwards, 306 TransitionsBefore, 306 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 69.4ms, 235 PlacesBefore, 234 PlacesAfterwards, 308 TransitionsBefore, 308 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 88.6ms, 238 PlacesBefore, 237 PlacesAfterwards, 309 TransitionsBefore, 309 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 108.3ms, 246 PlacesBefore, 242 PlacesAfterwards, 302 TransitionsBefore, 302 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.6ms, 241 PlacesBefore, 240 PlacesAfterwards, 303 TransitionsBefore, 303 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.6ms, 246 PlacesBefore, 239 PlacesAfterwards, 298 TransitionsBefore, 298 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.6ms, 239 PlacesBefore, 235 PlacesAfterwards, 296 TransitionsBefore, 296 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.4ms, 238 PlacesBefore, 235 PlacesAfterwards, 294 TransitionsBefore, 294 TransitionsAfterwards, 278 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.9ms, 234 PlacesBefore, 229 PlacesAfterwards, 291 TransitionsBefore, 291 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.6ms, 233 PlacesBefore, 228 PlacesAfterwards, 287 TransitionsBefore, 287 TransitionsAfterwards, 264 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.8ms, 229 PlacesBefore, 223 PlacesAfterwards, 284 TransitionsBefore, 284 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.2ms, 228 PlacesBefore, 225 PlacesAfterwards, 284 TransitionsBefore, 284 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.3ms, 228 PlacesBefore, 226 PlacesAfterwards, 281 TransitionsBefore, 281 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.5ms, 227 PlacesBefore, 220 PlacesAfterwards, 276 TransitionsBefore, 276 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 52.8ms, 218 PlacesBefore, 214 PlacesAfterwards, 272 TransitionsBefore, 272 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 112.4ms, 218 PlacesBefore, 217 PlacesAfterwards, 284 TransitionsBefore, 284 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.6ms, 218 PlacesBefore, 214 PlacesAfterwards, 278 TransitionsBefore, 278 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.6ms, 212 PlacesBefore, 208 PlacesAfterwards, 270 TransitionsBefore, 270 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.4ms, 202 PlacesBefore, 201 PlacesAfterwards, 275 TransitionsBefore, 275 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.3ms, 211 PlacesBefore, 205 PlacesAfterwards, 273 TransitionsBefore, 273 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.0ms, 210 PlacesBefore, 206 PlacesAfterwards, 279 TransitionsBefore, 279 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.3ms, 212 PlacesBefore, 210 PlacesAfterwards, 283 TransitionsBefore, 283 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 67.0ms, 217 PlacesBefore, 216 PlacesAfterwards, 285 TransitionsBefore, 285 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.8ms, 218 PlacesBefore, 214 PlacesAfterwards, 280 TransitionsBefore, 280 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 104.0ms, 214 PlacesBefore, 214 PlacesAfterwards, 293 TransitionsBefore, 293 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.8ms, 222 PlacesBefore, 218 PlacesAfterwards, 300 TransitionsBefore, 300 TransitionsAfterwards, 286 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.0ms, 225 PlacesBefore, 225 PlacesAfterwards, 306 TransitionsBefore, 306 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 72.7ms, 230 PlacesBefore, 230 PlacesAfterwards, 312 TransitionsBefore, 312 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 84.2ms, 233 PlacesBefore, 232 PlacesAfterwards, 313 TransitionsBefore, 313 TransitionsAfterwards, 322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 117.5ms, 237 PlacesBefore, 237 PlacesAfterwards, 328 TransitionsBefore, 328 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.5ms, 251 PlacesBefore, 249 PlacesAfterwards, 339 TransitionsBefore, 339 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.8ms, 256 PlacesBefore, 256 PlacesAfterwards, 340 TransitionsBefore, 340 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.5ms, 259 PlacesBefore, 258 PlacesAfterwards, 336 TransitionsBefore, 336 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.4ms, 264 PlacesBefore, 260 PlacesAfterwards, 334 TransitionsBefore, 334 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.5ms, 253 PlacesBefore, 253 PlacesAfterwards, 339 TransitionsBefore, 339 TransitionsAfterwards, 348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.4ms, 261 PlacesBefore, 260 PlacesAfterwards, 349 TransitionsBefore, 349 TransitionsAfterwards, 348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 97.1ms, 273 PlacesBefore, 272 PlacesAfterwards, 356 TransitionsBefore, 356 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.1ms, 275 PlacesBefore, 275 PlacesAfterwards, 369 TransitionsBefore, 369 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.4ms, 284 PlacesBefore, 284 PlacesAfterwards, 377 TransitionsBefore, 377 TransitionsAfterwards, 344 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 167.7ms, 292 PlacesBefore, 292 PlacesAfterwards, 387 TransitionsBefore, 387 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.6ms, 299 PlacesBefore, 297 PlacesAfterwards, 390 TransitionsBefore, 390 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.6ms, 301 PlacesBefore, 301 PlacesAfterwards, 396 TransitionsBefore, 396 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.3ms, 305 PlacesBefore, 304 PlacesAfterwards, 396 TransitionsBefore, 396 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 117.6ms, 308 PlacesBefore, 307 PlacesAfterwards, 397 TransitionsBefore, 397 TransitionsAfterwards, 396 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.4ms, 313 PlacesBefore, 311 PlacesAfterwards, 401 TransitionsBefore, 401 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.1ms, 310 PlacesBefore, 310 PlacesAfterwards, 405 TransitionsBefore, 405 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.9ms, 315 PlacesBefore, 314 PlacesAfterwards, 409 TransitionsBefore, 409 TransitionsAfterwards, 402 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 122.6ms, 320 PlacesBefore, 319 PlacesAfterwards, 413 TransitionsBefore, 413 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.4ms, 326 PlacesBefore, 325 PlacesAfterwards, 419 TransitionsBefore, 419 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 195.0ms, 331 PlacesBefore, 330 PlacesAfterwards, 421 TransitionsBefore, 421 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 169.7ms, 336 PlacesBefore, 336 PlacesAfterwards, 433 TransitionsBefore, 433 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 145.1ms, 345 PlacesBefore, 344 PlacesAfterwards, 435 TransitionsBefore, 435 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 150.2ms, 346 PlacesBefore, 346 PlacesAfterwards, 439 TransitionsBefore, 439 TransitionsAfterwards, 444 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.1ms, 354 PlacesBefore, 354 PlacesAfterwards, 441 TransitionsBefore, 441 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.6ms, 356 PlacesBefore, 355 PlacesAfterwards, 443 TransitionsBefore, 443 TransitionsAfterwards, 454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 145.6ms, 361 PlacesBefore, 360 PlacesAfterwards, 446 TransitionsBefore, 446 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 150.7ms, 367 PlacesBefore, 363 PlacesAfterwards, 441 TransitionsBefore, 441 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.1ms, 363 PlacesBefore, 363 PlacesAfterwards, 446 TransitionsBefore, 446 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 161.6ms, 371 PlacesBefore, 370 PlacesAfterwards, 448 TransitionsBefore, 448 TransitionsAfterwards, 454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 159.2ms, 374 PlacesBefore, 374 PlacesAfterwards, 453 TransitionsBefore, 453 TransitionsAfterwards, 454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 158.7ms, 384 PlacesBefore, 383 PlacesAfterwards, 464 TransitionsBefore, 464 TransitionsAfterwards, 454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 160.0ms, 388 PlacesBefore, 387 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.6ms, 392 PlacesBefore, 391 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 464 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 232.6ms, 394 PlacesBefore, 393 PlacesAfterwards, 470 TransitionsBefore, 470 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 189.4ms, 404 PlacesBefore, 398 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.5ms, 395 PlacesBefore, 391 PlacesAfterwards, 463 TransitionsBefore, 463 TransitionsAfterwards, 464 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 188.3ms, 395 PlacesBefore, 395 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 470 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 150.4ms, 399 PlacesBefore, 395 PlacesAfterwards, 457 TransitionsBefore, 457 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 161.1ms, 396 PlacesBefore, 395 PlacesAfterwards, 458 TransitionsBefore, 458 TransitionsAfterwards, 462 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.6ms, 402 PlacesBefore, 401 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.7ms, 411 PlacesBefore, 409 PlacesAfterwards, 460 TransitionsBefore, 460 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 182.2ms, 409 PlacesBefore, 408 PlacesAfterwards, 463 TransitionsBefore, 463 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.0ms, 412 PlacesBefore, 412 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.7ms, 421 PlacesBefore, 417 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 161.5ms, 421 PlacesBefore, 418 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 159.3ms, 423 PlacesBefore, 422 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 163.6ms, 424 PlacesBefore, 423 PlacesAfterwards, 471 TransitionsBefore, 471 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 235.4ms, 429 PlacesBefore, 428 PlacesAfterwards, 473 TransitionsBefore, 473 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 163.6ms, 432 PlacesBefore, 432 PlacesAfterwards, 471 TransitionsBefore, 471 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 171.7ms, 431 PlacesBefore, 430 PlacesAfterwards, 474 TransitionsBefore, 474 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 175.8ms, 433 PlacesBefore, 432 PlacesAfterwards, 477 TransitionsBefore, 477 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 173.8ms, 438 PlacesBefore, 434 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 173.6ms, 429 PlacesBefore, 428 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 167.4ms, 432 PlacesBefore, 429 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 167.3ms, 434 PlacesBefore, 433 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 183.2ms, 433 PlacesBefore, 432 PlacesAfterwards, 467 TransitionsBefore, 467 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.4ms, 436 PlacesBefore, 435 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 174.9ms, 438 PlacesBefore, 437 PlacesAfterwards, 470 TransitionsBefore, 470 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.8ms, 443 PlacesBefore, 443 PlacesAfterwards, 477 TransitionsBefore, 477 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 259.1ms, 449 PlacesBefore, 449 PlacesAfterwards, 481 TransitionsBefore, 481 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 175.9ms, 457 PlacesBefore, 457 PlacesAfterwards, 490 TransitionsBefore, 490 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.2ms, 462 PlacesBefore, 461 PlacesAfterwards, 491 TransitionsBefore, 491 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.6ms, 463 PlacesBefore, 459 PlacesAfterwards, 489 TransitionsBefore, 489 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 226.1ms, 462 PlacesBefore, 462 PlacesAfterwards, 491 TransitionsBefore, 491 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 212.6ms, 470 PlacesBefore, 470 PlacesAfterwards, 494 TransitionsBefore, 494 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 195.1ms, 472 PlacesBefore, 471 PlacesAfterwards, 495 TransitionsBefore, 495 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 201.5ms, 476 PlacesBefore, 475 PlacesAfterwards, 496 TransitionsBefore, 496 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 195.0ms, 478 PlacesBefore, 478 PlacesAfterwards, 499 TransitionsBefore, 499 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 226.6ms, 488 PlacesBefore, 488 PlacesAfterwards, 502 TransitionsBefore, 502 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 323.3ms, 492 PlacesBefore, 492 PlacesAfterwards, 516 TransitionsBefore, 516 TransitionsAfterwards, 514 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 309.5ms, 497 PlacesBefore, 495 PlacesAfterwards, 510 TransitionsBefore, 510 TransitionsAfterwards, 514 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 255.1ms, 494 PlacesBefore, 494 PlacesAfterwards, 514 TransitionsBefore, 514 TransitionsAfterwards, 518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 209.3ms, 499 PlacesBefore, 499 PlacesAfterwards, 511 TransitionsBefore, 511 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 198.2ms, 495 PlacesBefore, 495 PlacesAfterwards, 510 TransitionsBefore, 510 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 220.7ms, 497 PlacesBefore, 496 PlacesAfterwards, 508 TransitionsBefore, 508 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 330.9ms, 497 PlacesBefore, 497 PlacesAfterwards, 512 TransitionsBefore, 512 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 231.3ms, 500 PlacesBefore, 499 PlacesAfterwards, 512 TransitionsBefore, 512 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 226.7ms, 504 PlacesBefore, 501 PlacesAfterwards, 510 TransitionsBefore, 510 TransitionsAfterwards, 518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.2ms, 500 PlacesBefore, 496 PlacesAfterwards, 508 TransitionsBefore, 508 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 205.4ms, 499 PlacesBefore, 495 PlacesAfterwards, 503 TransitionsBefore, 503 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 213.9ms, 497 PlacesBefore, 496 PlacesAfterwards, 504 TransitionsBefore, 504 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 273.1ms, 499 PlacesBefore, 498 PlacesAfterwards, 504 TransitionsBefore, 504 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 291.5ms, 502 PlacesBefore, 500 PlacesAfterwards, 502 TransitionsBefore, 502 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.8ms, 500 PlacesBefore, 499 PlacesAfterwards, 503 TransitionsBefore, 503 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 191.1ms, 502 PlacesBefore, 499 PlacesAfterwards, 501 TransitionsBefore, 501 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.2ms, 507 PlacesBefore, 507 PlacesAfterwards, 503 TransitionsBefore, 503 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 288.6ms, 509 PlacesBefore, 509 PlacesAfterwards, 500 TransitionsBefore, 500 TransitionsAfterwards, 512 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 202.0ms, 508 PlacesBefore, 508 PlacesAfterwards, 501 TransitionsBefore, 501 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 216.0ms, 514 PlacesBefore, 509 PlacesAfterwards, 496 TransitionsBefore, 496 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 217.1ms, 508 PlacesBefore, 507 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 201.6ms, 511 PlacesBefore, 505 PlacesAfterwards, 494 TransitionsBefore, 494 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 228.9ms, 508 PlacesBefore, 505 PlacesAfterwards, 493 TransitionsBefore, 493 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 191.2ms, 505 PlacesBefore, 505 PlacesAfterwards, 488 TransitionsBefore, 488 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 191.8ms, 505 PlacesBefore, 504 PlacesAfterwards, 490 TransitionsBefore, 490 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 211.0ms, 508 PlacesBefore, 508 PlacesAfterwards, 501 TransitionsBefore, 501 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 192.5ms, 517 PlacesBefore, 515 PlacesAfterwards, 495 TransitionsBefore, 495 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 193.0ms, 509 PlacesBefore, 508 PlacesAfterwards, 496 TransitionsBefore, 496 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 198.9ms, 509 PlacesBefore, 504 PlacesAfterwards, 488 TransitionsBefore, 488 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 265.2ms, 508 PlacesBefore, 507 PlacesAfterwards, 486 TransitionsBefore, 486 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 186.3ms, 504 PlacesBefore, 503 PlacesAfterwards, 481 TransitionsBefore, 481 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.2ms, 497 PlacesBefore, 497 PlacesAfterwards, 480 TransitionsBefore, 480 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 189.9ms, 497 PlacesBefore, 495 PlacesAfterwards, 478 TransitionsBefore, 478 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 244.9ms, 498 PlacesBefore, 498 PlacesAfterwards, 476 TransitionsBefore, 476 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.7ms, 494 PlacesBefore, 492 PlacesAfterwards, 474 TransitionsBefore, 474 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.6ms, 497 PlacesBefore, 496 PlacesAfterwards, 473 TransitionsBefore, 473 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 167.9ms, 496 PlacesBefore, 495 PlacesAfterwards, 472 TransitionsBefore, 472 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 191.6ms, 502 PlacesBefore, 499 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.1ms, 501 PlacesBefore, 500 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 189.8ms, 496 PlacesBefore, 495 PlacesAfterwards, 470 TransitionsBefore, 470 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.0ms, 495 PlacesBefore, 494 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 186.5ms, 500 PlacesBefore, 499 PlacesAfterwards, 472 TransitionsBefore, 472 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 253.8ms, 504 PlacesBefore, 500 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 172.2ms, 503 PlacesBefore, 501 PlacesAfterwards, 464 TransitionsBefore, 464 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 156.7ms, 499 PlacesBefore, 499 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.2ms, 508 PlacesBefore, 508 PlacesAfterwards, 471 TransitionsBefore, 471 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.4ms, 511 PlacesBefore, 509 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.7ms, 510 PlacesBefore, 508 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 264.1ms, 511 PlacesBefore, 510 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.2ms, 511 PlacesBefore, 510 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.3ms, 512 PlacesBefore, 511 PlacesAfterwards, 465 TransitionsBefore, 465 TransitionsAfterwards, 512 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 169.2ms, 515 PlacesBefore, 511 PlacesAfterwards, 461 TransitionsBefore, 461 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 173.8ms, 507 PlacesBefore, 507 PlacesAfterwards, 463 TransitionsBefore, 463 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 177.2ms, 509 PlacesBefore, 508 PlacesAfterwards, 459 TransitionsBefore, 459 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 164.1ms, 507 PlacesBefore, 502 PlacesAfterwards, 455 TransitionsBefore, 455 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 167.1ms, 501 PlacesBefore, 499 PlacesAfterwards, 451 TransitionsBefore, 451 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.9ms, 495 PlacesBefore, 493 PlacesAfterwards, 445 TransitionsBefore, 445 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 157.3ms, 489 PlacesBefore, 486 PlacesAfterwards, 439 TransitionsBefore, 439 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 219.7ms, 480 PlacesBefore, 477 PlacesAfterwards, 435 TransitionsBefore, 434 TransitionsAfterwards, 498 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 162.6ms, 471 PlacesBefore, 465 PlacesAfterwards, 431 TransitionsBefore, 431 TransitionsAfterwards, 490 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.8ms, 459 PlacesBefore, 454 PlacesAfterwards, 427 TransitionsBefore, 427 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.3ms, 454 PlacesBefore, 454 PlacesAfterwards, 428 TransitionsBefore, 428 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 150.3ms, 463 PlacesBefore, 463 PlacesAfterwards, 433 TransitionsBefore, 433 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 152.5ms, 467 PlacesBefore, 466 PlacesAfterwards, 432 TransitionsBefore, 432 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 163.3ms, 470 PlacesBefore, 468 PlacesAfterwards, 429 TransitionsBefore, 429 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 140.4ms, 465 PlacesBefore, 464 PlacesAfterwards, 428 TransitionsBefore, 428 TransitionsAfterwards, 494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.8ms, 461 PlacesBefore, 457 PlacesAfterwards, 425 TransitionsBefore, 425 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 223.7ms, 460 PlacesBefore, 453 PlacesAfterwards, 419 TransitionsBefore, 419 TransitionsAfterwards, 486 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.8ms, 444 PlacesBefore, 439 PlacesAfterwards, 414 TransitionsBefore, 414 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.6ms, 434 PlacesBefore, 433 PlacesAfterwards, 413 TransitionsBefore, 413 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.7ms, 437 PlacesBefore, 436 PlacesAfterwards, 414 TransitionsBefore, 414 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 248.6ms, 439 PlacesBefore, 435 PlacesAfterwards, 415 TransitionsBefore, 414 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.3ms, 439 PlacesBefore, 437 PlacesAfterwards, 411 TransitionsBefore, 411 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.8ms, 435 PlacesBefore, 434 PlacesAfterwards, 409 TransitionsBefore, 409 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 127.4ms, 438 PlacesBefore, 434 PlacesAfterwards, 405 TransitionsBefore, 405 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 127.0ms, 434 PlacesBefore, 423 PlacesAfterwards, 399 TransitionsBefore, 399 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 127.4ms, 424 PlacesBefore, 423 PlacesAfterwards, 397 TransitionsBefore, 397 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.1ms, 423 PlacesBefore, 422 PlacesAfterwards, 395 TransitionsBefore, 395 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 144.0ms, 423 PlacesBefore, 422 PlacesAfterwards, 400 TransitionsBefore, 400 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.6ms, 425 PlacesBefore, 424 PlacesAfterwards, 403 TransitionsBefore, 403 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 137.6ms, 431 PlacesBefore, 430 PlacesAfterwards, 406 TransitionsBefore, 406 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.3ms, 437 PlacesBefore, 436 PlacesAfterwards, 411 TransitionsBefore, 411 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 139.1ms, 440 PlacesBefore, 439 PlacesAfterwards, 410 TransitionsBefore, 410 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.5ms, 443 PlacesBefore, 438 PlacesAfterwards, 406 TransitionsBefore, 406 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 156.7ms, 437 PlacesBefore, 436 PlacesAfterwards, 408 TransitionsBefore, 408 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.8ms, 439 PlacesBefore, 438 PlacesAfterwards, 410 TransitionsBefore, 410 TransitionsAfterwards, 508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.6ms, 443 PlacesBefore, 438 PlacesAfterwards, 408 TransitionsBefore, 408 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.3ms, 440 PlacesBefore, 439 PlacesAfterwards, 409 TransitionsBefore, 409 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.4ms, 444 PlacesBefore, 439 PlacesAfterwards, 407 TransitionsBefore, 407 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.7ms, 439 PlacesBefore, 438 PlacesAfterwards, 408 TransitionsBefore, 408 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 139.7ms, 439 PlacesBefore, 438 PlacesAfterwards, 410 TransitionsBefore, 410 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 145.3ms, 448 PlacesBefore, 447 PlacesAfterwards, 413 TransitionsBefore, 413 TransitionsAfterwards, 504 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.9ms, 447 PlacesBefore, 446 PlacesAfterwards, 413 TransitionsBefore, 413 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 149.7ms, 448 PlacesBefore, 445 PlacesAfterwards, 410 TransitionsBefore, 410 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.3ms, 450 PlacesBefore, 448 PlacesAfterwards, 412 TransitionsBefore, 412 TransitionsAfterwards, 506 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 131.1ms, 450 PlacesBefore, 443 PlacesAfterwards, 408 TransitionsBefore, 408 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.9ms, 446 PlacesBefore, 440 PlacesAfterwards, 405 TransitionsBefore, 405 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.4ms, 443 PlacesBefore, 436 PlacesAfterwards, 401 TransitionsBefore, 401 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.5ms, 440 PlacesBefore, 437 PlacesAfterwards, 401 TransitionsBefore, 401 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.4ms, 437 PlacesBefore, 436 PlacesAfterwards, 399 TransitionsBefore, 399 TransitionsAfterwards, 488 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 123.1ms, 440 PlacesBefore, 433 PlacesAfterwards, 395 TransitionsBefore, 395 TransitionsAfterwards, 486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.2ms, 433 PlacesBefore, 432 PlacesAfterwards, 398 TransitionsBefore, 398 TransitionsAfterwards, 486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 121.3ms, 437 PlacesBefore, 434 PlacesAfterwards, 396 TransitionsBefore, 396 TransitionsAfterwards, 486 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 120.8ms, 436 PlacesBefore, 434 PlacesAfterwards, 392 TransitionsBefore, 392 TransitionsAfterwards, 482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 123.2ms, 434 PlacesBefore, 430 PlacesAfterwards, 389 TransitionsBefore, 389 TransitionsAfterwards, 482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 125.2ms, 432 PlacesBefore, 432 PlacesAfterwards, 390 TransitionsBefore, 390 TransitionsAfterwards, 482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 133.4ms, 434 PlacesBefore, 430 PlacesAfterwards, 384 TransitionsBefore, 384 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.2ms, 433 PlacesBefore, 430 PlacesAfterwards, 375 TransitionsBefore, 375 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.8ms, 426 PlacesBefore, 425 PlacesAfterwards, 374 TransitionsBefore, 374 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 167.1ms, 426 PlacesBefore, 417 PlacesAfterwards, 365 TransitionsBefore, 365 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.5ms, 416 PlacesBefore, 415 PlacesAfterwards, 365 TransitionsBefore, 365 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 106.3ms, 411 PlacesBefore, 410 PlacesAfterwards, 363 TransitionsBefore, 363 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 106.1ms, 410 PlacesBefore, 408 PlacesAfterwards, 360 TransitionsBefore, 360 TransitionsAfterwards, 472 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.4ms, 406 PlacesBefore, 401 PlacesAfterwards, 357 TransitionsBefore, 357 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 104.3ms, 406 PlacesBefore, 402 PlacesAfterwards, 351 TransitionsBefore, 351 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 102.9ms, 405 PlacesBefore, 400 PlacesAfterwards, 347 TransitionsBefore, 347 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 105.8ms, 401 PlacesBefore, 398 PlacesAfterwards, 346 TransitionsBefore, 346 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 104.3ms, 402 PlacesBefore, 399 PlacesAfterwards, 343 TransitionsBefore, 343 TransitionsAfterwards, 446 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.0ms, 397 PlacesBefore, 393 PlacesAfterwards, 340 TransitionsBefore, 340 TransitionsAfterwards, 440 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.4ms, 395 PlacesBefore, 391 PlacesAfterwards, 334 TransitionsBefore, 334 TransitionsAfterwards, 426 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.9ms, 389 PlacesBefore, 388 PlacesAfterwards, 333 TransitionsBefore, 333 TransitionsAfterwards, 426 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.0ms, 391 PlacesBefore, 383 PlacesAfterwards, 329 TransitionsBefore, 329 TransitionsAfterwards, 424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.1ms, 386 PlacesBefore, 378 PlacesAfterwards, 315 TransitionsBefore, 314 TransitionsAfterwards, 424 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.0ms, 370 PlacesBefore, 369 PlacesAfterwards, 315 TransitionsBefore, 315 TransitionsAfterwards, 424 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.3ms, 371 PlacesBefore, 365 PlacesAfterwards, 312 TransitionsBefore, 312 TransitionsAfterwards, 422 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.2ms, 367 PlacesBefore, 363 PlacesAfterwards, 303 TransitionsBefore, 303 TransitionsAfterwards, 418 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.9ms, 357 PlacesBefore, 353 PlacesAfterwards, 299 TransitionsBefore, 299 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.4ms, 352 PlacesBefore, 348 PlacesAfterwards, 297 TransitionsBefore, 297 TransitionsAfterwards, 408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 104.8ms, 352 PlacesBefore, 351 PlacesAfterwards, 298 TransitionsBefore, 298 TransitionsAfterwards, 408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 122.2ms, 352 PlacesBefore, 342 PlacesAfterwards, 292 TransitionsBefore, 292 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.0ms, 342 PlacesBefore, 330 PlacesAfterwards, 278 TransitionsBefore, 278 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.9ms, 335 PlacesBefore, 333 PlacesAfterwards, 295 TransitionsBefore, 295 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.7ms, 349 PlacesBefore, 347 PlacesAfterwards, 312 TransitionsBefore, 312 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 172.0ms, 362 PlacesBefore, 358 PlacesAfterwards, 323 TransitionsBefore, 323 TransitionsAfterwards, 482 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 194.9ms, 372 PlacesBefore, 366 PlacesAfterwards, 338 TransitionsBefore, 338 TransitionsAfterwards, 534 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 115.0ms, 373 PlacesBefore, 369 PlacesAfterwards, 338 TransitionsBefore, 338 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 160.5ms, 373 PlacesBefore, 373 PlacesAfterwards, 349 TransitionsBefore, 349 TransitionsAfterwards, 578 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.7ms, 379 PlacesBefore, 377 PlacesAfterwards, 350 TransitionsBefore, 350 TransitionsAfterwards, 582 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.7ms, 378 PlacesBefore, 377 PlacesAfterwards, 351 TransitionsBefore, 351 TransitionsAfterwards, 584 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 108.1ms, 380 PlacesBefore, 374 PlacesAfterwards, 348 TransitionsBefore, 348 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 122.8ms, 378 PlacesBefore, 377 PlacesAfterwards, 362 TransitionsBefore, 362 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.1ms, 389 PlacesBefore, 388 PlacesAfterwards, 364 TransitionsBefore, 364 TransitionsAfterwards, 608 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 125.0ms, 389 PlacesBefore, 387 PlacesAfterwards, 372 TransitionsBefore, 372 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 118.4ms, 395 PlacesBefore, 391 PlacesAfterwards, 367 TransitionsBefore, 367 TransitionsAfterwards, 604 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 143.2ms, 393 PlacesBefore, 392 PlacesAfterwards, 385 TransitionsBefore, 385 TransitionsAfterwards, 610 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.8ms, 401 PlacesBefore, 400 PlacesAfterwards, 385 TransitionsBefore, 385 TransitionsAfterwards, 606 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.8ms, 402 PlacesBefore, 401 PlacesAfterwards, 385 TransitionsBefore, 385 TransitionsAfterwards, 606 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.6ms, 404 PlacesBefore, 401 PlacesAfterwards, 383 TransitionsBefore, 383 TransitionsAfterwards, 606 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 133.2ms, 403 PlacesBefore, 399 PlacesAfterwards, 381 TransitionsBefore, 381 TransitionsAfterwards, 602 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 130.0ms, 401 PlacesBefore, 394 PlacesAfterwards, 376 TransitionsBefore, 376 TransitionsAfterwards, 602 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 205.2ms, 403 PlacesBefore, 397 PlacesAfterwards, 408 TransitionsBefore, 408 TransitionsAfterwards, 640 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 224.5ms, 414 PlacesBefore, 414 PlacesAfterwards, 447 TransitionsBefore, 447 TransitionsAfterwards, 678 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.6ms, 429 PlacesBefore, 426 PlacesAfterwards, 453 TransitionsBefore, 453 TransitionsAfterwards, 678 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.8ms, 432 PlacesBefore, 432 PlacesAfterwards, 462 TransitionsBefore, 462 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 185.5ms, 441 PlacesBefore, 437 PlacesAfterwards, 464 TransitionsBefore, 464 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.2ms, 441 PlacesBefore, 441 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 190.3ms, 450 PlacesBefore, 450 PlacesAfterwards, 471 TransitionsBefore, 471 TransitionsAfterwards, 684 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 208.5ms, 460 PlacesBefore, 459 PlacesAfterwards, 464 TransitionsBefore, 464 TransitionsAfterwards, 692 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 213.3ms, 449 PlacesBefore, 449 PlacesAfterwards, 477 TransitionsBefore, 477 TransitionsAfterwards, 716 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 209.6ms, 455 PlacesBefore, 455 PlacesAfterwards, 475 TransitionsBefore, 475 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 208.6ms, 455 PlacesBefore, 454 PlacesAfterwards, 472 TransitionsBefore, 472 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 202.5ms, 465 PlacesBefore, 461 PlacesAfterwards, 488 TransitionsBefore, 488 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 228.5ms, 468 PlacesBefore, 467 PlacesAfterwards, 493 TransitionsBefore, 493 TransitionsAfterwards, 748 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 222.1ms, 481 PlacesBefore, 477 PlacesAfterwards, 491 TransitionsBefore, 491 TransitionsAfterwards, 744 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 331.9ms, 479 PlacesBefore, 478 PlacesAfterwards, 498 TransitionsBefore, 498 TransitionsAfterwards, 762 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 233.9ms, 484 PlacesBefore, 483 PlacesAfterwards, 501 TransitionsBefore, 501 TransitionsAfterwards, 774 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 326.7ms, 494 PlacesBefore, 493 PlacesAfterwards, 508 TransitionsBefore, 508 TransitionsAfterwards, 774 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.4ms, 504 PlacesBefore, 504 PlacesAfterwards, 540 TransitionsBefore, 540 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 258.6ms, 514 PlacesBefore, 511 PlacesAfterwards, 538 TransitionsBefore, 538 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 269.1ms, 512 PlacesBefore, 512 PlacesAfterwards, 546 TransitionsBefore, 546 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 263.8ms, 515 PlacesBefore, 512 PlacesAfterwards, 543 TransitionsBefore, 543 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 247.5ms, 515 PlacesBefore, 508 PlacesAfterwards, 531 TransitionsBefore, 531 TransitionsAfterwards, 796 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.4ms, 510 PlacesBefore, 506 PlacesAfterwards, 523 TransitionsBefore, 523 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.0ms, 514 PlacesBefore, 514 PlacesAfterwards, 525 TransitionsBefore, 525 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 256.0ms, 515 PlacesBefore, 511 PlacesAfterwards, 523 TransitionsBefore, 523 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 252.8ms, 512 PlacesBefore, 511 PlacesAfterwards, 526 TransitionsBefore, 526 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 249.9ms, 514 PlacesBefore, 513 PlacesAfterwards, 525 TransitionsBefore, 525 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.4ms, 515 PlacesBefore, 505 PlacesAfterwards, 520 TransitionsBefore, 520 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 283.2ms, 516 PlacesBefore, 506 PlacesAfterwards, 515 TransitionsBefore, 515 TransitionsAfterwards, 778 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.7ms, 511 PlacesBefore, 510 PlacesAfterwards, 519 TransitionsBefore, 519 TransitionsAfterwards, 778 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 272.0ms, 519 PlacesBefore, 515 PlacesAfterwards, 528 TransitionsBefore, 528 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 270.8ms, 523 PlacesBefore, 521 PlacesAfterwards, 526 TransitionsBefore, 526 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 266.3ms, 522 PlacesBefore, 521 PlacesAfterwards, 527 TransitionsBefore, 527 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.3ms, 526 PlacesBefore, 525 PlacesAfterwards, 530 TransitionsBefore, 530 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 248.1ms, 530 PlacesBefore, 530 PlacesAfterwards, 528 TransitionsBefore, 528 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 275.4ms, 530 PlacesBefore, 530 PlacesAfterwards, 532 TransitionsBefore, 532 TransitionsAfterwards, 808 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 269.0ms, 541 PlacesBefore, 537 PlacesAfterwards, 529 TransitionsBefore, 529 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 281.4ms, 535 PlacesBefore, 533 PlacesAfterwards, 529 TransitionsBefore, 529 TransitionsAfterwards, 806 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 292.5ms, 537 PlacesBefore, 536 PlacesAfterwards, 531 TransitionsBefore, 531 TransitionsAfterwards, 808 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 270.4ms, 538 PlacesBefore, 536 PlacesAfterwards, 530 TransitionsBefore, 530 TransitionsAfterwards, 806 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 268.1ms, 541 PlacesBefore, 540 PlacesAfterwards, 530 TransitionsBefore, 530 TransitionsAfterwards, 808 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 271.6ms, 540 PlacesBefore, 535 PlacesAfterwards, 526 TransitionsBefore, 526 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 297.8ms, 537 PlacesBefore, 536 PlacesAfterwards, 524 TransitionsBefore, 524 TransitionsAfterwards, 798 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 290.4ms, 532 PlacesBefore, 530 PlacesAfterwards, 521 TransitionsBefore, 521 TransitionsAfterwards, 796 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 253.8ms, 530 PlacesBefore, 522 PlacesAfterwards, 513 TransitionsBefore, 513 TransitionsAfterwards, 778 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 253.8ms, 518 PlacesBefore, 514 PlacesAfterwards, 511 TransitionsBefore, 511 TransitionsAfterwards, 778 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 243.1ms, 517 PlacesBefore, 514 PlacesAfterwards, 508 TransitionsBefore, 508 TransitionsAfterwards, 770 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.5ms, 512 PlacesBefore, 511 PlacesAfterwards, 519 TransitionsBefore, 519 TransitionsAfterwards, 764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 238.8ms, 520 PlacesBefore, 516 PlacesAfterwards, 516 TransitionsBefore, 516 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 255.5ms, 520 PlacesBefore, 511 PlacesAfterwards, 517 TransitionsBefore, 517 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 267.7ms, 518 PlacesBefore, 514 PlacesAfterwards, 515 TransitionsBefore, 515 TransitionsAfterwards, 758 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 305.5ms, 515 PlacesBefore, 506 PlacesAfterwards, 510 TransitionsBefore, 509 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 243.6ms, 505 PlacesBefore, 503 PlacesAfterwards, 506 TransitionsBefore, 506 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 243.1ms, 504 PlacesBefore, 502 PlacesAfterwards, 504 TransitionsBefore, 504 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 232.2ms, 502 PlacesBefore, 495 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 748 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 268.9ms, 496 PlacesBefore, 493 PlacesAfterwards, 530 TransitionsBefore, 530 TransitionsAfterwards, 800 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 304.6ms, 511 PlacesBefore, 505 PlacesAfterwards, 565 TransitionsBefore, 565 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 302.0ms, 520 PlacesBefore, 519 PlacesAfterwards, 571 TransitionsBefore, 571 TransitionsAfterwards, 860 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 320.0ms, 525 PlacesBefore, 524 PlacesAfterwards, 582 TransitionsBefore, 582 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 433.6ms, 540 PlacesBefore, 539 PlacesAfterwards, 603 TransitionsBefore, 603 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 439.3ms, 547 PlacesBefore, 545 PlacesAfterwards, 609 TransitionsBefore, 609 TransitionsAfterwards, 918 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 385.1ms, 552 PlacesBefore, 551 PlacesAfterwards, 607 TransitionsBefore, 607 TransitionsAfterwards, 912 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 339.5ms, 550 PlacesBefore, 549 PlacesAfterwards, 611 TransitionsBefore, 611 TransitionsAfterwards, 912 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 360.8ms, 557 PlacesBefore, 556 PlacesAfterwards, 618 TransitionsBefore, 618 TransitionsAfterwards, 930 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 475.4ms, 574 PlacesBefore, 572 PlacesAfterwards, 628 TransitionsBefore, 628 TransitionsAfterwards, 938 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 426.4ms, 575 PlacesBefore, 575 PlacesAfterwards, 638 TransitionsBefore, 638 TransitionsAfterwards, 968 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 359.2ms, 582 PlacesBefore, 577 PlacesAfterwards, 630 TransitionsBefore, 630 TransitionsAfterwards, 956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 351.9ms, 581 PlacesBefore, 579 PlacesAfterwards, 633 TransitionsBefore, 633 TransitionsAfterwards, 968 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 358.4ms, 580 PlacesBefore, 579 PlacesAfterwards, 635 TransitionsBefore, 635 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 386.1ms, 589 PlacesBefore, 589 PlacesAfterwards, 659 TransitionsBefore, 659 TransitionsAfterwards, 1018 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 393.9ms, 601 PlacesBefore, 600 PlacesAfterwards, 661 TransitionsBefore, 661 TransitionsAfterwards, 1014 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 456.2ms, 612 PlacesBefore, 611 PlacesAfterwards, 668 TransitionsBefore, 668 TransitionsAfterwards, 1014 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 486.5ms, 617 PlacesBefore, 615 PlacesAfterwards, 668 TransitionsBefore, 668 TransitionsAfterwards, 1018 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 415.8ms, 622 PlacesBefore, 616 PlacesAfterwards, 662 TransitionsBefore, 662 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 439.1ms, 614 PlacesBefore, 613 PlacesAfterwards, 669 TransitionsBefore, 669 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 428.2ms, 621 PlacesBefore, 619 PlacesAfterwards, 669 TransitionsBefore, 669 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 550.0ms, 624 PlacesBefore, 622 PlacesAfterwards, 665 TransitionsBefore, 665 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 432.5ms, 621 PlacesBefore, 615 PlacesAfterwards, 659 TransitionsBefore, 659 TransitionsAfterwards, 990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 481.0ms, 611 PlacesBefore, 608 PlacesAfterwards, 655 TransitionsBefore, 655 TransitionsAfterwards, 990 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 416.5ms, 609 PlacesBefore, 606 PlacesAfterwards, 653 TransitionsBefore, 653 TransitionsAfterwards, 986 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 392.9ms, 608 PlacesBefore, 602 PlacesAfterwards, 647 TransitionsBefore, 647 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 429.1ms, 606 PlacesBefore, 606 PlacesAfterwards, 660 TransitionsBefore, 660 TransitionsAfterwards, 1022 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.2ms, 610 PlacesBefore, 603 PlacesAfterwards, 654 TransitionsBefore, 654 TransitionsAfterwards, 1006 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 506.6ms, 600 PlacesBefore, 600 PlacesAfterwards, 663 TransitionsBefore, 663 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 469.9ms, 606 PlacesBefore, 605 PlacesAfterwards, 677 TransitionsBefore, 677 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 463.7ms, 613 PlacesBefore, 613 PlacesAfterwards, 681 TransitionsBefore, 681 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 422.6ms, 620 PlacesBefore, 619 PlacesAfterwards, 683 TransitionsBefore, 683 TransitionsAfterwards, 1012 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 426.8ms, 621 PlacesBefore, 621 PlacesAfterwards, 686 TransitionsBefore, 686 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 503.0ms, 627 PlacesBefore, 627 PlacesAfterwards, 684 TransitionsBefore, 684 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.4ms, 627 PlacesBefore, 626 PlacesAfterwards, 682 TransitionsBefore, 682 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 457.0ms, 628 PlacesBefore, 627 PlacesAfterwards, 685 TransitionsBefore, 685 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 490.3ms, 632 PlacesBefore, 632 PlacesAfterwards, 686 TransitionsBefore, 686 TransitionsAfterwards, 1018 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 435.0ms, 636 PlacesBefore, 634 PlacesAfterwards, 688 TransitionsBefore, 688 TransitionsAfterwards, 1024 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.3ms, 641 PlacesBefore, 637 PlacesAfterwards, 677 TransitionsBefore, 677 TransitionsAfterwards, 1024 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 415.8ms, 625 PlacesBefore, 619 PlacesAfterwards, 675 TransitionsBefore, 675 TransitionsAfterwards, 1020 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 454.1ms, 619 PlacesBefore, 618 PlacesAfterwards, 680 TransitionsBefore, 680 TransitionsAfterwards, 1030 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 430.1ms, 623 PlacesBefore, 622 PlacesAfterwards, 682 TransitionsBefore, 682 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 424.9ms, 628 PlacesBefore, 627 PlacesAfterwards, 685 TransitionsBefore, 685 TransitionsAfterwards, 1038 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.6ms, 630 PlacesBefore, 629 PlacesAfterwards, 687 TransitionsBefore, 687 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 547.6ms, 632 PlacesBefore, 632 PlacesAfterwards, 692 TransitionsBefore, 692 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 428.6ms, 638 PlacesBefore, 638 PlacesAfterwards, 694 TransitionsBefore, 694 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 424.0ms, 640 PlacesBefore, 638 PlacesAfterwards, 691 TransitionsBefore, 691 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 472.5ms, 642 PlacesBefore, 636 PlacesAfterwards, 687 TransitionsBefore, 687 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 461.9ms, 637 PlacesBefore, 637 PlacesAfterwards, 688 TransitionsBefore, 688 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 424.2ms, 644 PlacesBefore, 644 PlacesAfterwards, 695 TransitionsBefore, 695 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 442.4ms, 648 PlacesBefore, 647 PlacesAfterwards, 698 TransitionsBefore, 698 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 480.1ms, 651 PlacesBefore, 648 PlacesAfterwards, 695 TransitionsBefore, 695 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 429.5ms, 650 PlacesBefore, 646 PlacesAfterwards, 691 TransitionsBefore, 691 TransitionsAfterwards, 1034 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 419.6ms, 650 PlacesBefore, 649 PlacesAfterwards, 691 TransitionsBefore, 691 TransitionsAfterwards, 1034 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 458.0ms, 660 PlacesBefore, 656 PlacesAfterwards, 691 TransitionsBefore, 691 TransitionsAfterwards, 1036 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 444.9ms, 660 PlacesBefore, 655 PlacesAfterwards, 689 TransitionsBefore, 689 TransitionsAfterwards, 1034 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 437.0ms, 655 PlacesBefore, 654 PlacesAfterwards, 688 TransitionsBefore, 688 TransitionsAfterwards, 1032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 457.2ms, 656 PlacesBefore, 655 PlacesAfterwards, 689 TransitionsBefore, 689 TransitionsAfterwards, 1036 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 447.3ms, 663 PlacesBefore, 660 PlacesAfterwards, 690 TransitionsBefore, 690 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 447.7ms, 659 PlacesBefore, 657 PlacesAfterwards, 690 TransitionsBefore, 690 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 420.5ms, 660 PlacesBefore, 657 PlacesAfterwards, 680 TransitionsBefore, 680 TransitionsAfterwards, 1018 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 403.3ms, 653 PlacesBefore, 649 PlacesAfterwards, 674 TransitionsBefore, 674 TransitionsAfterwards, 1000 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 404.5ms, 655 PlacesBefore, 651 PlacesAfterwards, 675 TransitionsBefore, 675 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 450.1ms, 653 PlacesBefore, 651 PlacesAfterwards, 672 TransitionsBefore, 672 TransitionsAfterwards, 1000 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 396.4ms, 650 PlacesBefore, 649 PlacesAfterwards, 672 TransitionsBefore, 672 TransitionsAfterwards, 1000 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 392.1ms, 655 PlacesBefore, 654 PlacesAfterwards, 674 TransitionsBefore, 674 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 407.9ms, 654 PlacesBefore, 653 PlacesAfterwards, 675 TransitionsBefore, 675 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 406.7ms, 658 PlacesBefore, 656 PlacesAfterwards, 673 TransitionsBefore, 673 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 401.8ms, 659 PlacesBefore, 657 PlacesAfterwards, 667 TransitionsBefore, 667 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 385.3ms, 655 PlacesBefore, 654 PlacesAfterwards, 666 TransitionsBefore, 666 TransitionsAfterwards, 1000 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 425.7ms, 655 PlacesBefore, 646 PlacesAfterwards, 658 TransitionsBefore, 658 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.4ms, 647 PlacesBefore, 643 PlacesAfterwards, 656 TransitionsBefore, 656 TransitionsAfterwards, 986 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 378.9ms, 643 PlacesBefore, 642 PlacesAfterwards, 655 TransitionsBefore, 655 TransitionsAfterwards, 982 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 397.2ms, 643 PlacesBefore, 635 PlacesAfterwards, 649 TransitionsBefore, 649 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 377.1ms, 634 PlacesBefore, 631 PlacesAfterwards, 643 TransitionsBefore, 643 TransitionsAfterwards, 970 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 394.0ms, 631 PlacesBefore, 627 PlacesAfterwards, 639 TransitionsBefore, 639 TransitionsAfterwards, 966 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 408.4ms, 626 PlacesBefore, 618 PlacesAfterwards, 632 TransitionsBefore, 632 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 437.7ms, 611 PlacesBefore, 611 PlacesAfterwards, 636 TransitionsBefore, 636 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 347.4ms, 618 PlacesBefore, 615 PlacesAfterwards, 635 TransitionsBefore, 635 TransitionsAfterwards, 962 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 398.5ms, 614 PlacesBefore, 613 PlacesAfterwards, 636 TransitionsBefore, 636 TransitionsAfterwards, 962 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 373.3ms, 616 PlacesBefore, 614 PlacesAfterwards, 634 TransitionsBefore, 634 TransitionsAfterwards, 962 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 361.7ms, 617 PlacesBefore, 617 PlacesAfterwards, 637 TransitionsBefore, 637 TransitionsAfterwards, 962 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 375.0ms, 624 PlacesBefore, 624 PlacesAfterwards, 640 TransitionsBefore, 640 TransitionsAfterwards, 964 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 350.2ms, 625 PlacesBefore, 620 PlacesAfterwards, 631 TransitionsBefore, 631 TransitionsAfterwards, 962 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 344.5ms, 614 PlacesBefore, 614 PlacesAfterwards, 629 TransitionsBefore, 629 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 379.2ms, 618 PlacesBefore, 617 PlacesAfterwards, 629 TransitionsBefore, 629 TransitionsAfterwards, 960 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 354.2ms, 620 PlacesBefore, 618 PlacesAfterwards, 627 TransitionsBefore, 627 TransitionsAfterwards, 956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 354.7ms, 622 PlacesBefore, 617 PlacesAfterwards, 623 TransitionsBefore, 623 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.7ms, 619 PlacesBefore, 619 PlacesAfterwards, 626 TransitionsBefore, 626 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 357.0ms, 621 PlacesBefore, 619 PlacesAfterwards, 623 TransitionsBefore, 623 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 334.4ms, 619 PlacesBefore, 618 PlacesAfterwards, 623 TransitionsBefore, 623 TransitionsAfterwards, 950 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 386.1ms, 619 PlacesBefore, 616 PlacesAfterwards, 621 TransitionsBefore, 621 TransitionsAfterwards, 948 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 341.2ms, 621 PlacesBefore, 614 PlacesAfterwards, 618 TransitionsBefore, 618 TransitionsAfterwards, 948 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 339.1ms, 614 PlacesBefore, 613 PlacesAfterwards, 620 TransitionsBefore, 620 TransitionsAfterwards, 956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 335.5ms, 617 PlacesBefore, 616 PlacesAfterwards, 622 TransitionsBefore, 622 TransitionsAfterwards, 964 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 352.5ms, 619 PlacesBefore, 618 PlacesAfterwards, 624 TransitionsBefore, 624 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 341.5ms, 621 PlacesBefore, 619 PlacesAfterwards, 621 TransitionsBefore, 621 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 333.9ms, 622 PlacesBefore, 616 PlacesAfterwards, 617 TransitionsBefore, 617 TransitionsAfterwards, 958 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 328.9ms, 621 PlacesBefore, 615 PlacesAfterwards, 608 TransitionsBefore, 608 TransitionsAfterwards, 946 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 343.1ms, 613 PlacesBefore, 607 PlacesAfterwards, 602 TransitionsBefore, 602 TransitionsAfterwards, 940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 313.8ms, 606 PlacesBefore, 598 PlacesAfterwards, 584 TransitionsBefore, 584 TransitionsAfterwards, 936 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 308.9ms, 580 PlacesBefore, 576 PlacesAfterwards, 582 TransitionsBefore, 582 TransitionsAfterwards, 928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 322.2ms, 581 PlacesBefore, 578 PlacesAfterwards, 580 TransitionsBefore, 580 TransitionsAfterwards, 928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 288.9ms, 580 PlacesBefore, 574 PlacesAfterwards, 567 TransitionsBefore, 567 TransitionsAfterwards, 928 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 284.0ms, 571 PlacesBefore, 562 PlacesAfterwards, 559 TransitionsBefore, 559 TransitionsAfterwards, 920 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 380.3ms, 563 PlacesBefore, 550 PlacesAfterwards, 546 TransitionsBefore, 546 TransitionsAfterwards, 910 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 313.1ms, 546 PlacesBefore, 542 PlacesAfterwards, 536 TransitionsBefore, 536 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 269.6ms, 540 PlacesBefore, 536 PlacesAfterwards, 533 TransitionsBefore, 533 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 291.1ms, 539 PlacesBefore, 533 PlacesAfterwards, 530 TransitionsBefore, 530 TransitionsAfterwards, 878 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 261.3ms, 539 PlacesBefore, 532 PlacesAfterwards, 512 TransitionsBefore, 512 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 293.8ms, 528 PlacesBefore, 527 PlacesAfterwards, 510 TransitionsBefore, 510 TransitionsAfterwards, 836 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 272.0ms, 527 PlacesBefore, 526 PlacesAfterwards, 509 TransitionsBefore, 509 TransitionsAfterwards, 832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 274.4ms, 528 PlacesBefore, 528 PlacesAfterwards, 508 TransitionsBefore, 508 TransitionsAfterwards, 832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 254.0ms, 527 PlacesBefore, 525 PlacesAfterwards, 505 TransitionsBefore, 505 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 269.3ms, 525 PlacesBefore, 523 PlacesAfterwards, 503 TransitionsBefore, 503 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.0ms, 522 PlacesBefore, 516 PlacesAfterwards, 499 TransitionsBefore, 499 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 264.3ms, 515 PlacesBefore, 514 PlacesAfterwards, 494 TransitionsBefore, 494 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 241.5ms, 513 PlacesBefore, 510 PlacesAfterwards, 488 TransitionsBefore, 488 TransitionsAfterwards, 808 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 247.8ms, 507 PlacesBefore, 493 PlacesAfterwards, 472 TransitionsBefore, 472 TransitionsAfterwards, 788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 210.4ms, 469 PlacesBefore, 465 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 204.1ms, 465 PlacesBefore, 449 PlacesAfterwards, 454 TransitionsBefore, 454 TransitionsAfterwards, 780 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.9ms, 435 PlacesBefore, 434 PlacesAfterwards, 460 TransitionsBefore, 460 TransitionsAfterwards, 780 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 257.1ms, 441 PlacesBefore, 438 PlacesAfterwards, 462 TransitionsBefore, 461 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 194.0ms, 444 PlacesBefore, 438 PlacesAfterwards, 456 TransitionsBefore, 456 TransitionsAfterwards, 772 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 256.2ms, 441 PlacesBefore, 438 PlacesAfterwards, 452 TransitionsBefore, 452 TransitionsAfterwards, 772 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 186.5ms, 440 PlacesBefore, 434 PlacesAfterwards, 448 TransitionsBefore, 448 TransitionsAfterwards, 766 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 182.9ms, 427 PlacesBefore, 421 PlacesAfterwards, 442 TransitionsBefore, 442 TransitionsAfterwards, 764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 284.1ms, 431 PlacesBefore, 431 PlacesAfterwards, 496 TransitionsBefore, 496 TransitionsAfterwards, 856 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 231.8ms, 444 PlacesBefore, 443 PlacesAfterwards, 509 TransitionsBefore, 509 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 324.9ms, 452 PlacesBefore, 449 PlacesAfterwards, 514 TransitionsBefore, 514 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 302.7ms, 456 PlacesBefore, 456 PlacesAfterwards, 523 TransitionsBefore, 523 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 240.9ms, 463 PlacesBefore, 460 PlacesAfterwards, 514 TransitionsBefore, 514 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 249.4ms, 459 PlacesBefore, 459 PlacesAfterwards, 515 TransitionsBefore, 515 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 237.9ms, 463 PlacesBefore, 463 PlacesAfterwards, 516 TransitionsBefore, 516 TransitionsAfterwards, 878 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 253.9ms, 466 PlacesBefore, 465 PlacesAfterwards, 513 TransitionsBefore, 513 TransitionsAfterwards, 878 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 237.4ms, 464 PlacesBefore, 463 PlacesAfterwards, 517 TransitionsBefore, 517 TransitionsAfterwards, 878 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 238.2ms, 470 PlacesBefore, 470 PlacesAfterwards, 518 TransitionsBefore, 518 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 231.7ms, 475 PlacesBefore, 474 PlacesAfterwards, 512 TransitionsBefore, 512 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 235.0ms, 472 PlacesBefore, 471 PlacesAfterwards, 515 TransitionsBefore, 515 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 238.7ms, 470 PlacesBefore, 469 PlacesAfterwards, 518 TransitionsBefore, 518 TransitionsAfterwards, 890 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 250.9ms, 476 PlacesBefore, 475 PlacesAfterwards, 521 TransitionsBefore, 521 TransitionsAfterwards, 898 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 241.2ms, 480 PlacesBefore, 479 PlacesAfterwards, 524 TransitionsBefore, 524 TransitionsAfterwards, 904 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 15, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 313.2ms, 486 PlacesBefore, 480 PlacesAfterwards, 522 TransitionsBefore, 522 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 248.1ms, 484 PlacesBefore, 483 PlacesAfterwards, 526 TransitionsBefore, 526 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 250.1ms, 487 PlacesBefore, 486 PlacesAfterwards, 528 TransitionsBefore, 528 TransitionsAfterwards, 910 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 248.0ms, 491 PlacesBefore, 490 PlacesAfterwards, 529 TransitionsBefore, 529 TransitionsAfterwards, 912 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 256.4ms, 498 PlacesBefore, 494 PlacesAfterwards, 527 TransitionsBefore, 527 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.7ms, 499 PlacesBefore, 498 PlacesAfterwards, 528 TransitionsBefore, 528 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 252.6ms, 499 PlacesBefore, 498 PlacesAfterwards, 528 TransitionsBefore, 528 TransitionsAfterwards, 902 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 273.8ms, 502 PlacesBefore, 498 PlacesAfterwards, 523 TransitionsBefore, 523 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 249.2ms, 499 PlacesBefore, 498 PlacesAfterwards, 524 TransitionsBefore, 524 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.5ms, 506 PlacesBefore, 505 PlacesAfterwards, 531 TransitionsBefore, 531 TransitionsAfterwards, 892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 264.2ms, 511 PlacesBefore, 510 PlacesAfterwards, 529 TransitionsBefore, 529 TransitionsAfterwards, 892 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 256.3ms, 511 PlacesBefore, 508 PlacesAfterwards, 523 TransitionsBefore, 523 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 246.3ms, 509 PlacesBefore, 504 PlacesAfterwards, 521 TransitionsBefore, 521 TransitionsAfterwards, 880 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 276.5ms, 507 PlacesBefore, 507 PlacesAfterwards, 520 TransitionsBefore, 520 TransitionsAfterwards, 880 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 246.4ms, 509 PlacesBefore, 508 PlacesAfterwards, 519 TransitionsBefore, 519 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 291.3ms, 509 PlacesBefore, 505 PlacesAfterwards, 516 TransitionsBefore, 516 TransitionsAfterwards, 868 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 239.1ms, 503 PlacesBefore, 500 PlacesAfterwards, 512 TransitionsBefore, 512 TransitionsAfterwards, 868 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 238.1ms, 500 PlacesBefore, 496 PlacesAfterwards, 510 TransitionsBefore, 510 TransitionsAfterwards, 866 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.9ms, 497 PlacesBefore, 493 PlacesAfterwards, 503 TransitionsBefore, 503 TransitionsAfterwards, 846 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 309.2ms, 497 PlacesBefore, 493 PlacesAfterwards, 501 TransitionsBefore, 501 TransitionsAfterwards, 844 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 248.5ms, 495 PlacesBefore, 492 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 231.1ms, 484 PlacesBefore, 482 PlacesAfterwards, 495 TransitionsBefore, 495 TransitionsAfterwards, 834 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 228.9ms, 482 PlacesBefore, 480 PlacesAfterwards, 490 TransitionsBefore, 490 TransitionsAfterwards, 834 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 231.4ms, 480 PlacesBefore, 477 PlacesAfterwards, 486 TransitionsBefore, 486 TransitionsAfterwards, 830 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.7ms, 475 PlacesBefore, 471 PlacesAfterwards, 482 TransitionsBefore, 482 TransitionsAfterwards, 830 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 232.1ms, 468 PlacesBefore, 464 PlacesAfterwards, 478 TransitionsBefore, 478 TransitionsAfterwards, 826 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 218.3ms, 467 PlacesBefore, 458 PlacesAfterwards, 474 TransitionsBefore, 474 TransitionsAfterwards, 826 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 214.0ms, 459 PlacesBefore, 458 PlacesAfterwards, 471 TransitionsBefore, 471 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 218.2ms, 454 PlacesBefore, 446 PlacesAfterwards, 464 TransitionsBefore, 464 TransitionsAfterwards, 818 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 190.6ms, 430 PlacesBefore, 422 PlacesAfterwards, 457 TransitionsBefore, 457 TransitionsAfterwards, 814 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.0ms, 420 PlacesBefore, 414 PlacesAfterwards, 449 TransitionsBefore, 449 TransitionsAfterwards, 806 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 174.2ms, 406 PlacesBefore, 394 PlacesAfterwards, 439 TransitionsBefore, 439 TransitionsAfterwards, 796 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.2ms, 395 PlacesBefore, 393 PlacesAfterwards, 436 TransitionsBefore, 436 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 169.2ms, 390 PlacesBefore, 384 PlacesAfterwards, 430 TransitionsBefore, 430 TransitionsAfterwards, 782 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 188.8ms, 388 PlacesBefore, 386 PlacesAfterwards, 437 TransitionsBefore, 437 TransitionsAfterwards, 802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 189.0ms, 394 PlacesBefore, 392 PlacesAfterwards, 441 TransitionsBefore, 441 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 193.3ms, 407 PlacesBefore, 404 PlacesAfterwards, 466 TransitionsBefore, 466 TransitionsAfterwards, 818 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 272.5ms, 415 PlacesBefore, 408 PlacesAfterwards, 461 TransitionsBefore, 460 TransitionsAfterwards, 816 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 183.0ms, 406 PlacesBefore, 400 PlacesAfterwards, 457 TransitionsBefore, 457 TransitionsAfterwards, 816 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 315.0ms, 406 PlacesBefore, 403 PlacesAfterwards, 457 TransitionsBefore, 455 TransitionsAfterwards, 818 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 264.4ms, 400 PlacesBefore, 399 PlacesAfterwards, 454 TransitionsBefore, 454 TransitionsAfterwards, 806 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 176.6ms, 401 PlacesBefore, 397 PlacesAfterwards, 451 TransitionsBefore, 451 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 227.8ms, 400 PlacesBefore, 396 PlacesAfterwards, 449 TransitionsBefore, 449 TransitionsAfterwards, 788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 178.3ms, 397 PlacesBefore, 389 PlacesAfterwards, 443 TransitionsBefore, 443 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 169.0ms, 386 PlacesBefore, 380 PlacesAfterwards, 435 TransitionsBefore, 435 TransitionsAfterwards, 772 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 156.3ms, 368 PlacesBefore, 358 PlacesAfterwards, 428 TransitionsBefore, 428 TransitionsAfterwards, 764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.3ms, 356 PlacesBefore, 356 PlacesAfterwards, 452 TransitionsBefore, 452 TransitionsAfterwards, 764 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 178.7ms, 370 PlacesBefore, 369 PlacesAfterwards, 473 TransitionsBefore, 473 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 177.3ms, 375 PlacesBefore, 365 PlacesAfterwards, 468 TransitionsBefore, 468 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 189.9ms, 373 PlacesBefore, 373 PlacesAfterwards, 478 TransitionsBefore, 478 TransitionsAfterwards, 822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 245.6ms, 380 PlacesBefore, 378 PlacesAfterwards, 479 TransitionsBefore, 478 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 263.6ms, 382 PlacesBefore, 380 PlacesAfterwards, 478 TransitionsBefore, 477 TransitionsAfterwards, 826 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 182.7ms, 383 PlacesBefore, 380 PlacesAfterwards, 474 TransitionsBefore, 474 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.3ms, 383 PlacesBefore, 376 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 282.4ms, 384 PlacesBefore, 383 PlacesAfterwards, 481 TransitionsBefore, 481 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 183.6ms, 387 PlacesBefore, 386 PlacesAfterwards, 481 TransitionsBefore, 481 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 187.7ms, 390 PlacesBefore, 389 PlacesAfterwards, 480 TransitionsBefore, 480 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 197.1ms, 393 PlacesBefore, 393 PlacesAfterwards, 495 TransitionsBefore, 495 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 199.2ms, 400 PlacesBefore, 397 PlacesAfterwards, 493 TransitionsBefore, 493 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 223.1ms, 401 PlacesBefore, 400 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 810 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.7ms, 407 PlacesBefore, 406 PlacesAfterwards, 499 TransitionsBefore, 499 TransitionsAfterwards, 816 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 205.5ms, 410 PlacesBefore, 408 PlacesAfterwards, 498 TransitionsBefore, 498 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 199.9ms, 406 PlacesBefore, 405 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.1ms, 411 PlacesBefore, 409 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 231.2ms, 420 PlacesBefore, 420 PlacesAfterwards, 507 TransitionsBefore, 507 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 213.0ms, 421 PlacesBefore, 414 PlacesAfterwards, 502 TransitionsBefore, 502 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 214.3ms, 420 PlacesBefore, 416 PlacesAfterwards, 498 TransitionsBefore, 498 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 204.6ms, 419 PlacesBefore, 419 PlacesAfterwards, 505 TransitionsBefore, 505 TransitionsAfterwards, 802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.9ms, 419 PlacesBefore, 415 PlacesAfterwards, 500 TransitionsBefore, 500 TransitionsAfterwards, 802 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 222.6ms, 423 PlacesBefore, 419 PlacesAfterwards, 497 TransitionsBefore, 497 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 196.6ms, 425 PlacesBefore, 422 PlacesAfterwards, 491 TransitionsBefore, 491 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.6ms, 418 PlacesBefore, 414 PlacesAfterwards, 487 TransitionsBefore, 487 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 205.7ms, 419 PlacesBefore, 416 PlacesAfterwards, 484 TransitionsBefore, 484 TransitionsAfterwards, 790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 190.2ms, 413 PlacesBefore, 409 PlacesAfterwards, 481 TransitionsBefore, 481 TransitionsAfterwards, 782 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 217.8ms, 411 PlacesBefore, 401 PlacesAfterwards, 473 TransitionsBefore, 473 TransitionsAfterwards, 770 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 182.1ms, 392 PlacesBefore, 386 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 766 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 172.7ms, 386 PlacesBefore, 377 PlacesAfterwards, 460 TransitionsBefore, 460 TransitionsAfterwards, 766 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 79). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 20 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 13 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 25.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 813067.9ms, OverallIterations: 595, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 630136.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 189.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8805 SDtfs, 4334 SDslu, 8194 SDs, 0 SdLazy, 209218 SolverSat, 5601 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73093.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7497 GetRequests, 128 SyntacticMatches, 1305 SemanticMatches, 6064 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2321 ImplicationChecksByTransitivity, 68894.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23323occurred in iteration=427, InterpolantAutomatonStates: 6591, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 254.6ms SsaConstructionTime, 854.7ms SatisfiabilityAnalysisTime, 53633.0ms InterpolantComputationTime, 11189 NumberOfCodeBlocks, 11189 NumberOfCodeBlocksAsserted, 594 NumberOfCheckSat, 10595 ConstructedInterpolants, 0 QuantifiedInterpolants, 126708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 594 InterpolantComputations, 594 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown